20 Best Window Companies in Rancho Santa Margarita, CA (2023 Reviews)
Thinking about replacing your windows? We've got all the information you need in this list of the top window installation companies.
We analyzed all the top-rated window companies in Rancho Santa Margarita and selected the best 20 based on:
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Customer reviews
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Window installation expertise
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Popularity with home-owners like you
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Updated September 15, 2023
Why you can trust EcoWatch
Although renewable energy sources like wind and solar are important when it comes to decreasing your carbon footprint, improving your home's energy efficiency can also have a big impact on home energy conservation. If you have old or damaged windows, your AC or heating system could be working overtime to heat or cool your home. This means spending more on power bills.
That's not great for either your wallet or the environment, but one of the best window installation companies can help with that.
Unlike other sites, EcoWatch ranks window installation companies based on energy efficiency while also balancing cost, customer satisfaction and service area.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Rancho Santa Margarita
The EcoWatch team examined several window installation companies in Rancho Santa Margarita to find the best ones for our readers. The companies we've mentioned in this article passed our review standards for energy-efficient offerings as well as customer service, local expertise, price and beyond.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Great industry reputation
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Lifetime warranty
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Quality of service will depend on your area
Window World provides windows expertise in Rancho Santa Margarita. This provider has 27 years of experience in the window installation business, and it has proved to be one of the most respected companies in the business.
It is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsWindow World offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for high-quality Energy Star windows when inquiring. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Rancho Santa Margarita?Although prices are not available on Window World’s website, it's known for offering some of the most affordable window installations around. The best way to know for sure is to ask for a free quote from the company.

Milgard Windows & Doors
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EnergyStar Partner
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Wide network of installers
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Lifetime warranty available
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Entails hiring third-party contractors
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Limited additional services
Milgard Windows & Doors is a family-owned and -operated window replacement company, which primarily serves the West Coast. This company has 60 years of experience in the windows industry, and it has become one of the most reputable companies in Rancho Santa Margarita. Its reputation is backed by a considerable amount of positive reviews on customer review websites.
If you’re looking for a company that offers competitive pricing, a comprehensive warranty and installers that all have a minimum of 15 years of window installation experience, Milgard may be the company for you.
Energy Efficiency of Milgard Windows & Doors WindowsMilgard Windows & Doors offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want Energy Star windows when inquiring. The company manufactures its own products, which gives it the freedom to make custom windows based on the climate. The company designs its own vinyl compounds and profiles to ensure a heat-stable product that performs as advertised.
How much does Milgard Windows & Doors cost in Rancho Santa Margarita?Prices aren’t available on Milgard’s website, but it offers different kinds of windows at varying price points. You can ask for a free quote on its website for more information about the cost.

Renewal by Andersen
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Great industry reputation
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Award-winning company
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Member of US Green Building Council
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Manufactures products in-house
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No lifetime warranty
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More expensive than competition
Renewal by Andersen is a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has 27 years of experience in the windows industry, and it has become one of the most reputable companies in Rancho Santa Margarita. Its reputation is backed by a considerable amount of positive reviews on customer review websites.
If you’re looking for a company that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started, Andersen may be the company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen offers some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to mention that you want Energy Star windows when inquiring. A handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019.
How much does Renewal by Andersen cost in Rancho Santa Margarita?Prices aren’t available on Andersen’s website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. You can ask for a free quote on its website for more information about the cost.

Universal Windows Direct
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Makes charitable contributions
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Manufactures products in-house
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Wide variety of products and services
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Lifetime warranty
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Limited service area
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Some installations carried out by third-party contractors
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Quality of service will depend on your area
Universal Windows Direct provides the best warranty in Rancho Santa Margarita. Universal has around 20 years of experience in the window installation sector. Its reputation is backed by all the positive reviews from customers online.
You may want to consider opting for Universal if you're looking for a company that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct has some Energy Star windows, but note that not all its windows are energy-efficient, so be sure to ask for Energy Star windows when inquiring. The company offers energy-efficient UniShield brand windows. According to its website, UniShield window packages have higher gas fill rates and longer gas retention than most other brands on the market, and they are Energy Star products.
How much does Universal Windows Direct cost in Rancho Santa Margarita?Universal doesn’t have any prices displayed on its website, but installations typically range from $225 to $425 per window based on customer feedback. That makes Universal Windows Direct more of a budget-friendly option for window repair and replacements. The best way to know for sure is to request a free quote from the company.
We've recommended installers with good reputations, but keep in mind some national companies have independently owned locations in Rancho Santa Margarita, so your service may vary depending on your local crew. We have tried to stay unbiased and transparent by describing pros and cons for each company we reviewed.
More Window Companies in Rancho Santa Margarita
Renewal by Andersen of Orange County
Laguna Hills, CA-
Price Transparency
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Good Customer Service
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Timely Service
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Free assessment
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Educational Website
Services Offered
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Sliding Glass
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Stained Glass
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Custom Window Designs
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Window Replacement
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Glass Showers
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Commercial Windows
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Residential Windows
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Fast Delivery
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Double-Hung
Window World of Riverside County
Riverside, CA-
Free assessment
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Educational Website
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Price Transparency
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Good Customer Service
Services Offered
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Window Replacement
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Bay Windows
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Double-Hung
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Residential Windows
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Sliding Glass
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Fast Delivery
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Custom Window Designs
Sliding Door Repair Company
San Juan Capistrano, CA-
Free assessment
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Timely Service
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Price Transparency
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Educational Website
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Good Customer Service
Services Offered
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Residential Windows
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Sliding Glass
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Window Repair
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Double-Hung
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Fast Delivery
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Bay Windows
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Tempered Glass
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Window Replacement
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Custom Window Designs
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Glass Showers
Ameriside
Lake Forest, CA-
Price Transparency
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Educational Website
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Good Customer Service
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Timely Service
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Free assessment
Services Offered
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Residential Windows
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Sliding Glass
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Custom Window Designs
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Window Replacement
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Double-Hung
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Commercial Windows
Newman Windows and Doors - Mission Viejo
Mission Viejo, CA-
Educational Website
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Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Custom Window Designs
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Aluminum Window Frames
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Sliding Glass
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Double-Hung
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Window Replacement
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Residential Windows
Home Services at The Home Depot
Lake Forest, CA-
Educational Website
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Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Custom Window Designs
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Fast Delivery
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Stained Glass
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Double-Hung
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Window Replacement
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Residential Windows
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Commercial Windows
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Glass Showers
Eisenbart & Sons Glass, Windows & Doors
Mission Viejo, CA-
Good Customer Service
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Free assessment
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Price Transparency
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Educational Website
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Timely Service
Services Offered
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Stained Glass
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Glass Showers
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Window Replacement
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Residential Windows
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Sliding Glass
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Aluminum Window Frames
Saddleback Window Replacements, Inc.
thanks, CA-
Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Fast Delivery
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Aluminum Window Frames
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Window Replacement
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Stained Glass
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Residential Windows
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Double-Hung
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Custom Window Designs
Window Jazz
Laguna Hills, CA-
Free assessment
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Good Customer Service
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Educational Website
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Price Transparency
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Timely Service
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Window Designs
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Window Replacement
Doheny Builders Supply
Capistrano Beach, CA-
Good Customer Service
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Price Transparency
Services Offered
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Window Replacement
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Aluminum Window Frames
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Commercial Windows
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Custom Window Designs
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Energy-Efficient Options
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Residential Windows
American Vision Windows
Tustin, CA-
Price Transparency
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Free assessment
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Educational Website
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Good Customer Service
Services Offered
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Residential Windows
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Stained Glass
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Glass Showers
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Custom Window Designs
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Double-Hung
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Energy-Efficient Options
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Fast Delivery
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Aluminum Window Frames
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Window Replacement
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Sliding Glass
California Window Masters
Irvine, CA-
Free assessment
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Educational Website
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Good Customer Service
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Timely Service
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Price Transparency
Services Offered
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Custom Window Designs
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Bay Windows
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Commercial Windows
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Fast Delivery
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Sliding Glass
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Window Replacement
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Residential Windows
Cunningham Doors & Windows
Santa Ana, CA-
Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
Services Offered
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Residential Windows
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Sliding Glass
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Window Replacement
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Custom Window Designs
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Double-Hung
Legendary Doors & Windows
Irvine, CA-
Educational Website
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Good Customer Service
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Free assessment
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Timely Service
Services Offered
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Energy-Efficient Options
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Residential Windows
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Window Replacement
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Aluminum Window Frames
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Custom Window Designs
California Window & Solar
Costa Mesa, CA-
Educational Website
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Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Window Replacement
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Sliding Glass
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Custom Window Designs
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Full-Service Installations
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Aluminum Window Frames
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Residential Windows
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Fast Delivery
The Window Guys
Corona, CA-
Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Residential Windows
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Sliding Glass
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Double-Hung
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Full-Service Installations
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Bay Windows
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Aluminum Window Frames
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Custom Window Designs
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Window Replacement
New Appearance Windows - Replacement Vinyl Windows & Doors
Corona, CA-
Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Energy-Efficient Options
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Double-Hung
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Custom Window Designs
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Residential Windows
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Window Replacement
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Fast Delivery
Atlas Windows and Doors
Costa Mesa, CA-
Free assessment
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Educational Website
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Good Customer Service
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Timely Service
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Price Transparency
Services Offered
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Energy-Efficient Options
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Fast Delivery
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Residential Windows
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Commercial Windows
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Window Replacement
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Stained Glass
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Glass Showers
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Custom Window Designs
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Double-Hung
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Sliding Glass
Energy Core Construction
Anaheim, CA-
Timely Service
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Good Customer Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Aluminum Window Frames
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Window Replacement
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Residential Windows
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Custom Window Designs
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Sliding Glass
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Energy-Efficient Options
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Commercial Windows
A New View Windows & Doors Inc.
Anaheim, CA-
Good Customer Service
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Timely Service
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Educational Website
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Free assessment
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Price Transparency
Services Offered
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Custom Window Designs
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Commercial Windows
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Glass Showers
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Residential Windows
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Fast Delivery
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Sliding Glass
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Window Replacement
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Energy-Efficient Options
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Double-Hung
Calculate how much you can expect to pay for window installation and replacement in Rancho Santa Margarita, CA using our customized window cost calculator.
Estimates will vary based on window dimensions and other unique factors to your home. Getting in touch with a local window installer is the best way to get an accurate cost estimate for your home.
How Installing Energy-Efficient Windows in Rancho Santa Margarita Saves You Money
By upgrading to energy-efficient windows, you can take advantage of several benefits, such as:
- Save money on power bills: Since energy-efficient windows reduce the amount of energy used to heat or cool your home, the switch can help you save about $388 annually on your energy bills in Rancho Santa Margarita.
- Protect your valuables: The low-emissivity coatings on many energy-efficient windows help prevent the fading of your floors, carpets and furniture by filtering out UV rays.
- Better temperature control in your home: Living in a chilly city like Rancho Santa Margarita can often mean relying on your heater to keep your house cool. Energy-efficient windows can cut back on how hard your heating system needs to work to heat your home.
- Protect your investment: The older your home is, the more likely you are to benefit from switching to energy-efficient windows. Older homes usually have windows that are outdated, drafty or potentially even damaged in some way. Upgrading your windows could help raise the value of your home if you decide to sell.
Estimated Cost of Window Replacement in Rancho Santa Margarita
Let's go over the cost of updating your windows and the types of services you may need for your home.
How Much Do New Windows Cost?
Even though the typical to replace a single window is about $600, it can range from $200 to $1,200. But costs will differ considerably depending on the current condition of your home, the quality of your products, your location and the number of windows you need. Many window companies also offer replacement door installations and other add-ons like coating, baths, shutters and more. These extra services will increase your overall project costs.
Bear in mind that energy-efficient windows may cost more upfront, but Energy Star estimates the upgrade will save you between $101 and $583 a year when you replace single-pane windows and between $27 and $197 a year when you replace double-pane, clear glass windows. Your savings will vary depending on your local climate, energy rates and individual home characteristics.
We advise getting free quotes from multiple window installers to find the right windows and the company that works best for you.
What Services do Window Installers Offer?
Generally, there are two types of window replacement services companies provide: full-frame and pocket installations.
Full-frame installations involve replacing the whole window — the sill, frame, trim and all. These are most common when you want a new style for your windows or when it has a great amount of damage. Full-frame installations are more time-consuming and will increase overall costs. Pocket installations (or retrofits) entail replacing a window within its existing frame, which makes pocket installations more simple and affordable. But, if the frame has any rot or deterioration, you should opt for a full-frame installation instead.
If you're still trying to decide which kind of installation you need, you can talk to your provider and get their advice. The decision mostly depends on how old the frames are and if there's any damage.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Rancho Santa Margarita
EcoWatch reviews differ from other reviews because we evaluate these companies through a sustainability lens. Along with energy efficiency, we analyzed window companies all across the state and ranked them using the following methodology:
Service Area
Since this is a guide for Rancho Santa Margarita, we gave more points to companies that serve the city. There are certainly reputable providers that didn't make our list because of the low odds that they would serve the average homeowner in Rancho Santa Margarita.
Work Quality
We're willing to bet that you're looking for professionals who do a great job installing windows. We've vetted each installer included on this list to make sure its technicians are well-qualified and that the company has gotten lots of positive customer feedback to vouch for its service.
Customer Reviews
Another self-explanatory yet super important review factor is customer feedback. If the majority of customers don't have positive things to say about their experience with a certain company, it won't be featured on EcoWatch.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers would like to keep costs low when possible. When analyzing providers' prices, we gave higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important to many homeowners. That's why window installation companies that offer lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to Rancho Santa Margarita's climate, homeowners will want to mitigate rot, low efficiency and water damage. We factored in local experience to reflect the ability of Rancho Santa Margarita window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Rancho Santa Margarita, CA Window Replacement FAQs
What is the typical cost to replace windows in a home?
The national average cost of replacing a window is around $600 but can range from $200 to $1,200, depending on a few different factors. The price is often influenced by the size of the window, the type and material of the window and the location of your property. Also, bear in mind that energy-efficient windows may cost more initially but can save you hundreds of dollars a year in energy bills.
What kind of window is the best for energy efficiency?
A window's energy efficiency is influenced by a variety of factors, such as the quality of the installation and the kind of window. Look for Energy Star Certified windows — these are usually the most energy-efficient since they are certified by the U.S. Department of Energy.
Can I replace my own windows?
If you're handy and have the time and patience to do the job right, you may be able to install your own windows. But if you don't have the time or skills, we recommend getting a professional to do it for you.
When is the best time of year to replace windows?
Replacement windows can be installed any time of the year, but autumn might be the best season. No matter when you install them, the contractors will take steps to make sure that too much hot or cold air doesn't get into your home, so the temperature outside isn't necessarily a big factor. What's most important is that the weather should be dry.