22 Best Window Replacement Companies in San Luis Obispo, CA (2023 Reviews)
Window Companies Near Me
Thinking about upgrading your home's windows? We've got all the information you need in this list of the top window installation companies.
We analyzed all the top window installers in San Luis Obispo and selected the top 22 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated May 04, 2023
Why you can trust EcoWatch
The EcoWatch team is all about finding solutions for eco-conscious homeowners in San Luis Obispo. Potential leaks or drafts from your windows can make your AC or heater work extra hard in the summer or winter.
Installing energy-efficient windows on your home can help you save money each month on your electricity bills — and you can help the environment as well.
We've compiled this guide on the best installation companies to help you in your search, so you can not only benefit from brand new windows, but also save money on your electricity bills.
Best Affordability
Window World
- Great industry reputation
- Low prices relative to competitors
- Large serice area
- Quality of service will depend on your area
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Limited additional services
Best Overall
Renewal by Andersen
- Member of US Green Building Council
- Great industry reputation
- Award-winning company
- No lifetime warranty
Best Window Replacement Companies in San Luis Obispo
The EcoWatch Reviews team assessed dozens of installers in San Luis Obispo to find the best window installation companies for our readers. The companies mentioned in this article passed our review standards for energy-efficient offerings as well as local expertise, customer service, price and beyond.

Window World
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Great industry reputation
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Low prices relative to competitors
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Large serice area
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Quality of service will depend on your area
Window World provides windows expertise in San Luis Obispo. It's the largest window replacement company in the country, known for its vinyl windows and affordability. Window World has been in the window installation business for about 27 years.
You may want to consider picking Window World if you're looking for a installer that 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 WindowsIts high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home. Not all of Window World's windows are Energy Star certified, so be sure to mention that you want Energy Star windows when inquiring.
How much does Window World cost in San Luis Obispo?While pricing information is not readily available on Window World's website, it's known for offering some of the most affordable window installations around. The best way to get more accurate pricing information is to receive 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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Limited additional services
Milgard Windows & Doors provides the best local installation in San Luis Obispo. It's a family-owned and -operated window replacement company, which primarily serves the West Coast. Milgard has about 60 years of industry experience, and it currently provides services to Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties. The provider has plenty of positive reviews from customers on online review websites.
You may want to consider choosing Milgard if you're interested in a company that offers competitive pricing, a comprehensive warranty and installers that all have a minimum of 15 years of window installation experience.
Energy Efficiency of Milgard Windows & Doors WindowsThe 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. Not all of Milgard's offerings are Energy Star certified, so be sure to mention that you're interested in Energy Star windows when inquiring.
How much does Milgard Windows & Doors cost in San Luis Obispo?Milgard does not detail prices on its website, but it offers different kinds of windows at varying price points. Requesting a free quote on its website is the best way to get more accurate pricing information.

Renewal by Andersen
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Member of US Green Building Council
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Great industry reputation
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Award-winning company
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No lifetime warranty
Renewal by Andersen has the best availability in San Luis Obispo. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This window installation company has been in business since 1995 and currently services nearly every state except Mississippi and West Virginia. The company has many positive reviews from customers online.
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, this may be the provider for you.
Energy Efficiency of Renewal by Andersen WindowsA 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. Not all of Andersen's windows are Energy Star certified, so be sure to mention that you'd like Energy Star windows when inquiring.
How much does Renewal by Andersen cost in San Luis Obispo?Andersen doesn't have any prices available on its website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. Requesting a free quote on its website is the best way to get more accurate pricing information.

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 is a company that has grown immensely since its inception in 2002, and now has several franchise dealers nationwide. Universal has been in the window installation industry for around 20 years. Many positive reviews from customers online back the company's reputation.
Universal may be the company for you if you're interested in one that has an industry-leading warranty covering products, parts and workmanship for life.
Energy Efficiency of Universal Windows Direct WindowsThere are a wide range of window types that Universal Windows Direct offers, some of which are Energy Star products. 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 San Luis Obispo?Universal doesn't have any pricing information listed 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. Requesting a free quote on its website is the best way to get more accurate pricing information.
We've recommended installers with shining reputations, but keep in mind these are national companies, so the quality of service may vary depending on your local crew. We have tried to stay unbiased and transparent by including pros and cons for each company we reviewed.
More Window Replacement Companies in San Luis Obispo
Paso Robles Glass
Paso Robles, CA-
Good Customer Service
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Timely Service
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Free assessment
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Price Transparency
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Educational Website
Services Offered
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Fast Delivery
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Sliding Glass
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Residential Windows
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Commercial Windows
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Glass Showers
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Double-Hung
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Custom Window Designs
New Life Bath & Kitchen
Santa Maria, CA-
Free assessment
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Price Transparency
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Educational Website
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Award-Winning
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Good Customer Service
Services Offered
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Glass Showers
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Fast Delivery
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Double-Hung
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Custom Window Designs
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Residential Windows
Wighton's Plumbing, Heating, & Air Conditioning
San Luis Obispo, CA-
Educational Website
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Price Transparency
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Free assessment
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Award-Winning
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Good Customer Service
Services Offered
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Glass Showers
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Commercial Windows
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Custom Window Designs
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Residential Windows
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Double-Hung
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Fast Delivery
Home Services at The Home Depot
Lompoc, 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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Double-Hung
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Glass Showers
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Bay Windows
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Sliding Glass
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Residential Windows
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Custom Window Designs
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Stained Glass
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Fast Delivery
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Commercial Windows
Central Coast Screens
San Luis Obispo, 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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Bay Windows
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Residential Windows
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Commercial Windows
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Sliding Glass
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Fast Delivery
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Stained Glass
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Custom Window Designs
Construction Windows LLC
Paso Robles, CA-
Good Customer Service
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Award-Winning
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Price Transparency
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Educational Website
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Free assessment
Services Offered
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Aluminum Window Frames
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Custom Window Designs
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Double-Hung
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Fast Delivery
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Residential Windows
Mr. Fix It Repairs, LLC
Paso Robles, CA-
Timely Service
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Award-Winning
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Good Customer Service
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Price Transparency
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Free assessment
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Educational Website
Services Offered
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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
The Tint House
Santa Maria, CA-
Educational Website
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Good Customer Service
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Price Transparency
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Free assessment
Services Offered
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Residential Windows
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Aluminum Window Frames
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Custom Window Designs
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Commercial Windows
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Double-Hung
Blue Star Tile & Stone
Paso Robles, CA-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Glass Showers
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Custom Window Designs
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Commercial Windows
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Bay Windows
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Double-Hung
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Residential Windows
Home Services at The Home Depot
Santa Maria, 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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Residential Windows
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Bay Windows
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Commercial Windows
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Aluminum Window Frames
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Custom Window Designs
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Fast Delivery
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Stained Glass
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Glass Showers
Quality Tinting & Signs
San Luis Obispo, 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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Custom Window Designs
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Sliding Glass
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Commercial Windows
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Stained Glass
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Residential Windows
Jerry’s Plumbing, Heating & Air Conditioning
Santa Maria, CA-
Educational Website
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Timely Service
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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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Double-Hung
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Fast Delivery
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Commercial Windows
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Custom Window Designs
Home Services at The Home Depot
Atascadero, CA-
Good Customer Service
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Educational Website
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Price Transparency
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Free assessment
Services Offered
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Bay Windows
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Stained Glass
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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
Home Services at The Home Depot
San Luis Obispo, CA-
Price Transparency
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Good Customer Service
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Free assessment
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Educational Website
Services Offered
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Stained Glass
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Custom Window Designs
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Bay Windows
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Residential Windows
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Commercial Windows
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Fast Delivery
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Glass Showers
City Glass
Santa Maria, CA-
Free assessment
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Price Transparency
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Good Customer Service
Services Offered
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Fast Delivery
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Residential Windows
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Custom Window Designs
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Full-Service Installations
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Commercial Windows
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Glass Showers
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Sliding Glass
Templeton Glass
Paso Robles, CA-
Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Commercial Windows
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Aluminum Window Frames
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Fast Delivery
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Custom Window Designs
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Residential Windows
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Sliding Glass
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Glass Showers
AVES Electric
Betteravia Rd, CA-
Price Transparency
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Good Customer Service
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Free assessment
Services Offered
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Residential Windows
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Fast Delivery
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Full-Service Installations
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Commercial Windows
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Custom Window Designs
Screenmobile
Santa Maria, CA-
Educational Website
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Price Transparency
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Free assessment
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Good Customer Service
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Award-Winning
Services Offered
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Custom Window Designs
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Double-Hung
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Sliding Glass
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Residential Windows
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Commercial Windows
Arroyo Grande Glass
Arroyo Grande, CA-
Good Customer Service
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Price Transparency
Services Offered
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Double-Hung
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Custom Window Designs
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Commercial Windows
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Residential Windows
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Glass Showers
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Energy-Efficient Options
Santa Margarita Glass
Paso Robles, CA-
Free assessment
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Good Customer Service
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Price Transparency
Services Offered
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Fast Delivery
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Sliding Glass
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Commercial Windows
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Aluminum Window Frames
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Residential Windows
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Glass Showers
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Custom Window Designs
Specialty Glass
Santa Maria, CA-
Free assessment
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Price Transparency
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Good Customer Service
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Educational Website
Services Offered
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Commercial Windows
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Glass Showers
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Residential Windows
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Custom Window Designs
Blands Handy Home Services and Painting
Atascadero, CA-
Good Customer Service
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Free assessment
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Price Transparency
Services Offered
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Glass Showers
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Fast Delivery
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Custom Window Designs
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Residential Windows
How Installing Energy-Efficient Windows in San Luis Obispo Saves You Money
Switching to energy-efficient windows can help improve the comfort of your home and help you save on electricity bills. Here's more information on how switching out your windows could benefit you:
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
- Save on power bills: Switching to energy-efficient windows lowers your energy bills by about 12% because you use less energy.
- Protect your investment: If you have an older home, your windows are most likely in need of replacement. Upgrading your windows can improve the insulation in your home and also help raise the value of your house if you decide to sell.
- Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your home, you can lower your carbon footprint by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in San Luis Obispo
Let's go over the cost of replacing your windows and the types of services you may need for your home.
How Much Do New Windows Cost?
On average, homeowners in San Luis Obispo can expect that most replacement window installations will range from $250 to $1,200, with the average cost at about $600. But costs vary considerably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also provide door installations, which have a higher price tag.
Bear in mind that energy-efficient windows may cost more upfront, but Energy Star estimates the upgrade will save you between $101 and $583 per year when you install single-pane windows and between $27 and $197 per year when you install double-pane, clear glass windows. Your savings will vary based on your local climate, energy rates and individual home characteristics.
Another factor that affects the overall cost is the material you select for your frame. Aluminum frames are typically the least expensive and are sturdy and relatively maintenance-free, but they offer poor insulation. On the other hand, wood frames are the most expensive, as they are aesthetically pleasing and offer decent insulation. Fiberglass and vinyl frames provide good insulation as well and cost somewhere between the other two.
What Services do Window Installers Offer?
The first step when planning a replacement is to think about whether you should get a full-frame or pocket installation.
A full-frame installation replaces the full window, such as the sill, frame, trim and the window panes. Because this kind of installation requires more time and labor, it will be more expensive than a pocket installation. Pocket installations are simpler and won't cost as much because they entail merely replacing the window within its existing frame. But if the frame has any damage, you should opt for a full-frame installation instead.
If you're still trying to decide which kind of installation you should get, you can ask your provider and get their advice. The choice mostly depends on the age of your window frames and if there's any damage present.
Best Affordability
Window World
- Great industry reputation
- Low prices relative to competitors
- Large serice area
- Quality of service will depend on your area
Excellent Reputation
Milgard Windows & Doors
- EnergyStar Partner
- Wide network of installers
- Lifetime warranty available
- Limited additional services
Best Overall
Renewal by Andersen
- Member of US Green Building Council
- Great industry reputation
- Award-winning company
- No lifetime warranty
How We Choose the Best Window Installers in San Luis Obispo
In our search to find the most reliable, eco-friendly window installers in San Luis Obispo, EcoWatch landed on the above companies as the best window installation companies in the city. We have evaluated the top window installers in San Luis Obispo mainly based on their energy efficient offerings, as the most sustainable option also benefits homeowners in many ways. Energy-efficient windows have been shown to cut your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
This one is pretty self-explanatory, but we've chosen to highlight window installation companies that serve San Luis Obispo so you can find the right window installation company near you.
Work Quality
When choosing new windows, the quality and breadth of services often plays just as important of a role in overall efficiency and performance as the type of window you opt for. We do rate window installers higher if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
We analyzed trends in recent online reviews to find the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it reflects the quality of services across most other categories, including warranty, quality of installation, quality of parts, professionalism, cost and more.
Cost
Cheaper windows don't necessarily mean better windows, but we know many of our readers would like to keep costs as low as possible. When analyzing providers' prices, we awarded higher points to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
As discussed previously, windows are a considerable investment, so you'll want to be certain that investment is well protected. Window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Due to San Luis Obispo's climate, homeowners will want to mitigate low efficiency, water damage and rot. We factored in local experience to reflect the ability of San Luis Obispo window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
San Luis Obispo, CA Window Replacement FAQs
What is the average cost to install windows in a home?
The typical cost to replace one window ranges between $450 and $650. There are several factors that affect the price, such as the number of windows, your property's location, the materials used in designing the windows, local labor costs, styles and sizes of windows and how energy-efficient the windows are.
Which type of window is the best?
A window's energy efficiency is influenced by several factors, such as the quality of the installation and what kind of window it is. Look for Energy Star Certified windows — these are often the most energy-efficient and are certified by the U.S. Department of Energy.
What services do window installation companies provide?
Window installers visit your property to remove your old windows and replace them with new ones. Some companies install products distributed by other companies, whereas others are both manufacturers and installation companies combined. The installer will also clean up after the installation.
How long does it usually take to install windows?
Because the average installation time of a window is 30 minutes, around 16 windows can be installed in a typical 8-hour work day.
How do you know it's time to replace your windows?
Windows have a typical lifespan of about 20 to 30 years. If your windows are older than that, then they should probably be replaced. Other than that, if your windows have any damage on them, or they have become difficult to operate, they may be in need of replacement.