20 Best Window Companies in Agoura Hills, CA (2025 Reviews)
Are you looking to replace your windows? Our list of the top window installation companies can help you narrow down which one to pick.
We analyzed all the top-rated window companies in Agoura Hills 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 review of the best window replacement companies in Agoura Hills may not seem like the most captivating article on EcoWatch, but trust us, windows have more of an impact on your life than you might realize. When it’s the middle of summer, your outdated and drafty windows could be making your home harder to cool and more uncomfortable for you.
Thankfully, helping you save money with more efficient windows also helps our goals of reducing energy usage for the environment.
Because windows have such a large impact on your home, selecting the right company for you is a big decision to make. That’s why the EcoWatch team has curated this list of the top 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 Agoura Hills
The EcoWatch team examined many window installation companies in Agoura Hills to find the top ones for our readers. We assessed the installers based on their energy-efficient offerings, price, coverage area, customer service, local experience 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 has windows expertise in Agoura Hills. This window installation company has been in business since 1995 and currently serves 200 locations nationwide.
You may want to consider choosing 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 WindowsWindow World offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want 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 Agoura Hills?Even though prices are not available on Window World’s website, it's known for offering some of the most affordable window installations around. For more detailed information on the cost, you can receive a 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 has the best local installation in Agoura Hills. This window installation company has been in business since 1962 and currently serves Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties.
You may want to consider choosing Milgard if you're looking for a installer 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality 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 Agoura Hills?Even though prices are not available on Milgard’s website, it offers different kinds of windows at varying price points. For more detailed information on the cost, you can receive a 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 has the best availability in Agoura Hills. This window installation company has been in business since 1995 and currently serves nearly every state except Mississippi and West Virginia.
You may want to consider choosing Andersen if you're looking for a installer 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 offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want high-quality 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 Agoura Hills?Even though prices are not available on Andersen’s website, based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. For more detailed information on the cost, you can receive a quote from the company.
We have tried to be unbiased and transparent by mentioning pros and cons for each company. Additionally, any partnerships do not influence our reviews.
More Window Companies in Agoura Hills
Renewal by Andersen of Los Angeles
Torrance, CAFree assessment
31,000+ projects completed
In-home or virtual consultations
Price Transparency
Educational Website
Financing options available
Good Customer Service
Services Offered
Window Replacement/Installation
Bay Windows
Glass Doors
Skylights
Double-Hung
Concierge Home Remodeling
Tarzana, CAEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Discount Window And Door
Redondo Beach, CAGood Customer Service
Price Transparency
Free assessment
Services Offered
Vinyl Frames
Metal Frames
Glass Doors
Energy-Efficient Options
Window Replacement/Installation
Skylights
Smart Window Company
Torrance, CAFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Double-Hung
Energy-Efficient Options
Tempered Glass
Vinyl Frames
Harbor Construction
Huntington Beach, CAGood Customer Service
Timely Service
Free assessment
Educational Website
Price Transparency
Services Offered
Vinyl Frames
Energy-Efficient Options
Double-Hung
Bay Windows
Glass Doors
Window Replacement/Installation
Hometime Windows & Doors
Glendora, CAGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Energy-Efficient Options
SoCal Window Pros
San Dimas, CAGood Customer Service
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Dede Windows and Doors / window replacement
Anaheim, CAPrice Transparency
Educational website
Energy-efficient windows and doors
Free assessment
Good Customer Service
American-made vinyl
Educational Website
Services Offered
Custom Window Designs
Glass Doors
Window Replacement/Installation
Vinyl Frames
American Vision Windows
Simi Valley, CAEducational Website
Free assessment
Price Transparency
Services Offered
Bay Windows
Wood Frames
Double-Hung
Fiberglass Frames
Vinyl Frames
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
CGH Solutions - California Green Home Solutions
Van Nuys, CAGood Customer Service
Educational Website
Price Transparency
Services Offered
Double-Hung
Window Replacement/Installation
Energy-Efficient Options
Glass Doors
Vinyl Frames
Golden Age Builders
West Hollywood, CAGood Customer Service
Unique window options
Timely Service
Price Transparency
3D design and planning tool
Free assessment
In-home consultations
Services Offered
Window Replacement/Installation
Save-On Glass & Screen
Westminster, CATimely Service
Free assessment
Good Customer Service
Services Offered
Window Repair
Mirrors
Window Replacement/Installation
Glass Doors
Glass Showers
Mancino Door & Window, Inc.
Glendora, CAPrice Transparency
Free assessment
Educational Website
Services Offered
Window Replacement/Installation
Window King
Huntington Beach, CAEducational Website
Price Transparency
Free assessment
Services Offered
Energy-Efficient Options
Vinyl Frames
Glass Doors
Window Replacement/Installation
Double-Hung
Best Windows and Doors OC
Anaheim, CAFree assessment
Educational Website
Good Customer Service
Price Transparency
Services Offered
Vinyl Frames
Custom Window Designs
Glass Doors
Window Replacement/Installation
The Window Factory
Simi Valley, CAPrice Transparency
Educational Website
Good Customer Service
Free assessment
Services Offered
Glass Doors
Window Replacement/Installation
Double-Hung
Triple Pane Glass
Energy-Efficient Options
Bay Windows
Vinyl Frames
American Reliable Windows & Doors
Van Nuys, CAPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Double-Hung
Glass Doors
Window Replacement/Installation
Bay Windows
Home Upgrade Specialist Inc
Los Angeles, CATimely Service
Free assessment
Financing options available
Energy-efficient products
Price Transparency
Educational Website
Good Customer Service
Wide range of services
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Anytime Windows and Doors
North Hollywood, CAFree assessment
Good Customer Service
Price Transparency
Timely Service
Educational Website
Services Offered
Metal Frames
Double-Hung
Vinyl Frames
Energy-Efficient Options
Glass Doors
Fiberglass Frames
Window Replacement/Installation
Golden Glass
Fullerton, CAPrice Transparency
Free assessment
Good Customer Service
Timely Service
Educational Website
Services Offered
Glass Repair
Mirrors
Tempered Glass
Glass Doors
Glass Showers
Custom Glass
Window Replacement/Installation
Calculate how much you can expect to pay for window installation and replacement in Agoura Hills, 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 Agoura Hills Saves You Money
Upgrading to energy-efficient windows can help improve the comfort of your home and help you save on energy bills. Here are more details about how switching out your windows could benefit you:
- Protect your valuables: Many energy-efficient windows have low-emissivity coatings, which not only provide better insulation for your home, but also filter out damaging UV rays, preventing fading of your furniture, carpet and other valuables.
- Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Upgrading your windows can improve the insulation in your home and also help increase the value of your property if you decide to sell.
- Save on electricity bills: The Department of Energy estimates that heat gained or lost through windows makes up around 25-30% of household energy use. Upgrading to energy-efficient windows can help lower that amount, which helps you save some money on your bills.
- Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your house, you can cut your carbon footprint by about 12%, according to Energy Star.
Estimated Cost of Window Replacement in Agoura Hills
Each window installation company provides various services and has varying price points depending on several factors.
How Much Do New Windows Cost?
The typical cost to install a single window is about $600 but can range from $200 to $1,200. But costs differ 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 offer door replacements, which will make your project cost more.
It’s important to bear in mind that windows with the best efficiency may cost more upfront but can save you hundreds of dollars via returns on your energy bills. Investing in certified energy-efficient windows can save Agoura Hills homeowners $509+ a year when replacing single-pane windows.
Getting free quotes from multiple providers is the best way to find out which one will work best for your budget.
What Services do Window Installers Offer?
In general, there are two types of window installation services you can get: full-frame and pocket installations.
Full-frame installations require replacing the whole window — the sill, frame, trim and all. These are most common when you want to change the style of your window or when it has a great amount of rot or deterioration. Full-frame installations require more time and labor and will increase overall costs. Pocket installations (or retrofits) entail installing a new window within its existing frame, which makes pocket installations less labor-intensive and costly. But, if the frame has any damage or rot, you will most likely need a full-frame installation instead.
If you’re unsure which type of window installation service you should get, your installer can help you out. Generally, the choice depends on factors such as the age and condition of the home, the type of building material, budget and time restrictions.
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 Agoura Hills
In our search to make your home improvements easier and more eco-friendly in Agoura Hills, EcoWatch evaluated dozens of companies before deciding on these. We have assessed the best window replacement companies in Agoura Hills mainly based on their energy efficient offerings, as it’s the most sustainable option and the best one for homeowners. Energy Star certified windows can reduce your power bills by hundreds of dollars. Along with energy efficiency, our rating methodology considers the following factors:
Service Area
This one is self-explanatory, but we’ve chosen to highlight window installers that serve a wide variety of states and cities so you can find the right window installation company near you.
Work Quality
We’re certain that you’re looking for a company to do a great job installing windows. We’ve vetted each company included on this list to ensure its contractors 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 service from a certain window installation company, it won’t be featured on EcoWatch.
Cost
This one is a give-and-take: similar to most services, cheap window installation companies won’t always provide the most quality service. On the other hand, we want to ensure we’re highlighting companies that offer a variety of price and financing options so they’re accessible to most homeowners.
Warranty
Protecting your investment in new windows is important. That’s why window installation companies that offer lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Agoura Hills’s climate, homeowners will want to mitigate rot, low efficiency and water damage. We factored in local experience to reflect the ability of Agoura Hills window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Agoura Hills, CA Window Replacement FAQs
What is the typical cost to install windows?
The average cost of replacing a single window can range between $450 and $650. There are many factors that influence the cost, which include local labor costs, the materials used in designing the windows, your property’s location, styles and sizes of windows, the number of windows and how energy-efficient the windows are.
Which kind of window is the best?
Generally, double-pane windows will be more efficient than single-pane windows and windows that don’t open are more efficient than windows that do. To be sure you’ll have the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — they’re certified energy-efficient by the U.S. Department of Energy.
Can I install my own windows?
Although you can install your own windows, doing so is time-consuming and requires a lot of handiness. Using a window installation company can help ensure that the installation is done properly and that you won’t have to spend the time and effort to do it yourself.
How do you know it’s time to replace your windows?
Windows generally last around 20 to 30 years, but anytime you see damage on your windows, it’s a good idea to have an expert take a look at them to determine if they need any repairs or replacements.