20 Best Window Companies in South Whittier, CA (2025 Reviews)
If you’re thinking of upgrading to new windows, our list of the top window installation companies can help.
We analyzed all the top-rated window companies in South Whittier and selected the best 20 based on:
Customer reviews
Window installation expertise
Popularity with home-owners like you
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Why you can trust EcoWatch
A guide on the top window replacement companies in South Whittier may not seem like the most captivating article on EcoWatch, but trust us, windows impact your life more than you might think. When it’s the middle of summer, your old and leaky windows could be making your home more difficult to cool and more uncomfortable for you.
Installing new, efficient windows on your home can help you save money every month on your electric bills — and you can help the environment as well.
As windows are so important for your home, choosing the best company for you is a big decision to make. That’s why the EcoWatch team has put together this list of the best window installation companies, so you can make an informed decision more easily.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
Best Window Installation & Replacement Companies in South Whittier
The EcoWatch team researched several window providers across South Whittier to narrow our list down to the best ones. We assessed the providers on energy-efficient offerings, customer service, local experience, price, coverage area and more.

Window World
EnergyStar Partner
Large serice area
Low prices relative to competitors
Great industry reputation
Lifetime warranty
Quality of service will depend on your area
Window World provides windows expertise in South Whittier. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has been in business since 1995 and currently provides services to 200 locations nationwide. Many positive reviews on customer review websites back the company's reputation.
Window World may be the company for you if you want one 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 WindowsWindow World is an Energy Star partner and has a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Window World representative when inquiring about services.
How much does Window World cost in South Whittier?Window World does not outline prices on its website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate pricing information is to get a free quote from the company.

Milgard Windows & Doors
EnergyStar Partner
Wide network of installers
Lifetime warranty available
Entails hiring third-party contractors
Limited additional services
Milgard Windows & Doors provides the best local installation in South Whittier. It's a family-owned and -operated window replacement company, which primarily serves the West Coast. This company has been in business since 1962 and currently provides services to Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties. Many positive reviews on customer review websites back the company's reputation.
Milgard may be the company for you if you want one 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 WindowsMilgard Windows & Doors is an Energy Star partner and has a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Milgard representative when inquiring about services.
How much does Milgard Windows & Doors cost in South Whittier?Milgard does not outline prices on its website, but it offers different kinds of windows at varying price points. The best way to get more accurate pricing information is to get a free quote from the company.

Renewal by Andersen
Great industry reputation
Award-winning company
Member of US Green Building Council
Manufactures products in-house
No lifetime warranty
More expensive than competition
Renewal by Andersen provides the best availability in South Whittier. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has been in business since 1995 and currently provides services to nearly every state except Mississippi and West Virginia. Many positive reviews on customer review websites back the company's reputation.
Andersen may be the company for you if you want one that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen is an Energy Star partner and has a variety of energy-efficient windows. Note that not all of the company’s windows are Energy Star certified, so make sure to ask your Andersen representative when inquiring about services.
How much does Renewal by Andersen cost in South Whittier?Andersen does not outline prices 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. The best way to get more accurate pricing information is to get a free quote from the company.
We’ve recommended companies with shining reputations, but bear in mind that these are national companies, so your service may vary depending on your local crew. We have tried to remain unbiased and transparent by listing pros and cons for every company reviewed.
More Window Companies in South Whittier
Renewal by Andersen of Orange County
Laguna Hills, CAEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Glass Doors
Bay Windows
Double-Hung
Dede Windows and Doors / window replacement
Anaheim, CAEducational Website
American-made vinyl
Good Customer Service
Free assessment
Educational website
Energy-efficient windows and doors
Price Transparency
Services Offered
Glass Doors
Custom Window Designs
Vinyl Frames
Window Replacement/Installation
Harbor Construction
Huntington Beach, CAFree assessment
Timely Service
Price Transparency
Educational Website
Good Customer Service
Services Offered
Bay Windows
Glass Doors
Energy-Efficient Options
Vinyl Frames
Window Replacement/Installation
Double-Hung
Hometime Windows & Doors
Glendora, CAEducational Website
Price Transparency
Good Customer Service
Free assessment
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Glass Doors
SoCal Window Pros
San Dimas, CAGood Customer Service
Educational Website
Free assessment
Services Offered
Window Replacement/Installation
Smart Window Company
Torrance, CAPrice Transparency
Good Customer Service
Educational Website
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
Vinyl Frames
Double-Hung
Tempered Glass
Energy-Efficient Options
Discount Window And Door
Redondo Beach, CAGood Customer Service
Price Transparency
Free assessment
Services Offered
Glass Doors
Vinyl Frames
Window Replacement/Installation
Energy-Efficient Options
Skylights
Metal Frames
California Window & Solar
Costa Mesa, CAEducational Website
Free assessment
Price Transparency
Good Customer Service
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Metal Frames
Vinyl Frames
Glass Doors
Andes windows & doors
Norco, CAFree assessment
Offers window treatments
Price Transparency
Educational Website
Good Customer Service
Online portfolio
Spanish-speaking
Services Offered
Bay Windows
Double-Hung
Window Replacement/Installation
Vinyl Frames
Glass Doors
United Builders Windows & Doors
Rancho Cucamonga, CAGood Customer Service
Free assessment
Price Transparency
Timely Service
Educational Website
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Glass Doors
Double-Hung
Bay Windows
Concierge Home Remodeling
Tarzana, CAGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Energy-Efficient Options
Mancino Door & Window, Inc.
Laguna Niguel, CAEducational Website
Free assessment
Price Transparency
Services Offered
Window Replacement/Installation
Retro Windows and Patio Doors LLC
Fontana, CAFree assessment
Lifetime warranty
Price Transparency
Family-owned and operated
Educational Website
Energy-efficient windows and doors
Good Customer Service
Services Offered
Energy-Efficient Options
Glass Doors
Window Replacement/Installation
Tempered Glass
Best Windows and Doors OC
Anaheim, CAFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Vinyl Frames
Glass Doors
Custom Window Designs
Window Replacement/Installation
Save-On Glass & Screen
Westminster, CAGood Customer Service
Timely Service
Free assessment
Services Offered
Mirrors
Window Repair
Glass Doors
Glass Showers
Window Replacement/Installation
Energy Core Construction
Anaheim, CAGood Customer Service
Educational Website
Timely Service
Free assessment
Price Transparency
Services Offered
Bay Windows
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
TMC Windows & Doors
Orange, CAFree assessment
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Glass Doors
Can-Do Windows & Doors
Santa Ana, CAEducational Website
Free assessment
Price Transparency
Services Offered
Metal Frames
Window Replacement/Installation
Vinyl Frames
Energy-Efficient Options
Fiberglass Frames
Glass Doors
Double-Hung
Wood Frames
Window King
Huntington Beach, CAEducational Website
Free assessment
Price Transparency
Services Offered
Double-Hung
Glass Doors
Vinyl Frames
Window Replacement/Installation
Energy-Efficient Options
Golden Age Builders
West Hollywood, CAUnique window options
In-home consultations
Timely Service
Good Customer Service
3D design and planning tool
Price Transparency
Free assessment
Services Offered
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in South Whittier, 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 South Whittier Saves You Money
When you switch to energy-efficient windows, you may see a few perks, including:
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which filter out harmful UV rays, reducing fading of your furniture, carpet and other valuables.
- Reduce your carbon footprint: In South Whittier, you can cut your indirect greenhouse gas emissions by about 117 pounds per year once you switch to energy-efficient windows.
- Protect your investment: The older your home is, the more likely it is that getting new windows will benefit you. Older homes tend to have windows that are outdated, drafty or potentially even damaged in some way. Upgrading your windows could help raise the value of your property if you decide to sell.
- Save money on power bills: Because energy-efficient windows reduce how much energy you need to heat or cool your home, they can help you save around $509 annually on your energy bills in South Whittier.
Estimated Cost of Window Replacement in South Whittier
When researching window installation, each company offers varying services and prices. Let’s take a look at some average costs and services.
How Much Do New Windows Cost?
Generally, homeowners in South Whittier can anticipate that most replacement window installations will range from $250 to $1,200, with the average cost sitting at about $600. But costs differ remarkably depending on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also provide door installations, which will make your project cost more.
Whether or not you want to install energy-efficient windows is another factor that will determine the cost. These will almost always cost more than other windows, but on the other hand, you can save about $509 a year on your energy bills in South Whittier.
How much your window installation costs will also vary depending on the kind of window material you choose for the frames. Wood windows are usually the most expensive, although it depends on whether they are 100% wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are more efficient.
What Services do Window Installers Offer?
There are typically two kinds of window replacement services: full-frame and pocket installations.
A full-frame installation is a replacement of the total window. It involves taking out the old window, the sill, and the exterior and interior trim. It can also involve other materials, such as insulation and drip edges, which increase the overall cost of the project. It’s also worth noting that you may have to touch up the paint surrounding the window after a full-frame installation. Pocket installations (or retrofits) entail installing a new window within its existing frame, which makes pocket installations less labor-intensive and costly. However, if the frame has any rot or deterioration, you should opt for a full-frame installation instead.
Your window installation company can help you figure out which type of installation you need.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- Member of US Green Building Council
- Manufactures products in-house
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best for Residential Windows
Window Nation
- Custom Designs
- Wide variety of products and services
- Manufactures products in-house
How We Choose the Best Window Installers in South Whittier
In our hunt to make your home improvements easier and more eco-friendly in South Whittier, EcoWatch landed on the above companies as the best window installation companies in the city. Along with energy efficiency, we analyzed each installer and assigned rankings using the following methodology:
Service Area
This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve the South Whittier area so you can find the best window installation company near you.
Work Quality
When choosing new windows, the quality and breadth of services can often play just as important of a role in insulation and performance as the type of window you opt for. We do give window installers higher marks if they offer high-quality products, but we also factor in workmanship as reflected in customer feedback.
Customer Reviews
Customer feedback is another very important review factor. If the majority of customers don’t have nice things to say about their service from a certain company, you won’t see it featured on EcoWatch.
Cost
Cheaper windows certainly don’t mean better windows, but we know many of our readers try 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
As discussed previously, windows are a significant investment, so you’ll want to be certain that investment is well protected. Window installation companies with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of South Whittier’s climate, homeowners will want to mitigate water damage, rot and low efficiency. We factored in local experience to reflect the ability of South Whittier window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
South Whittier, CA Window Replacement FAQs
What is the typical cost to install windows?
The national average cost to install a single window is about $600 but can range between $200 and $1,200, depending on a few different factors. The price is typically influenced by the size of the window, the location of your property and the type and material of the window. Also, remember that energy-efficient windows may cost more upfront but can save you hundreds of dollars a year in energy bills.
Which type of window should I get?
Generally, double-pane windows are more efficient than single-pane windows and windows that do not open will be more efficient than windows that do. To be sure you’re getting the most energy-efficient windows, look for models with the blue Energy Star certification — that means they’re certified energy-efficient by the U.S. Department of Energy.
Do you really need to use a window installation company?
Unless you have experience with home improvement projects and have the time needed to replace your own windows, we recommend hiring a professional installer. The process of installing windows is complicated and can take anywhere from four to six hours for a single window. Although it’s tempting to try to do it yourself to save money, hiring a company is a faster, more efficient and safer alternative.
What time of year should I replace my windows?
Replacement windows can be installed during any season, but warmer weather is typically better. Regardless of when you install them, the contractors will take steps to ensure that too much hot or cold air doesn’t get into the home, so the temperature outside isn’t necessarily a big factor. What’s more important than the temperature is that the weather should be dry.