20 Best Window Companies in Thousand Oaks, CA (2024 Reviews)
Thinking of improving your home’s value? The top window replacement companies can help.
We analyzed all the top-rated window companies in Thousand Oaks and selected the best 20 based on:
- Customer reviews
- Window installation expertise
- Popularity with home-owners like you
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Updated February 01, 2024
Why you can trust EcoWatch
A guide on the top window replacement companies in Thousand Oaks may not seem like the most compelling article on the EcoWatch site, but trust us, windows impact your life more than you might realize. Traditional or damaged windows could lead to spending more on energy bills during the winter or summer months.
Luckily, helping you save money with more efficient windows also helps our goals of reducing energy usage for the environment.
Unlike other review sites, EcoWatch ranks window replacement companies based on energy efficiency while also considering cost, customer satisfaction and service area.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
Best Window Installation & Replacement Companies in Thousand Oaks
The EcoWatch Reviews team evaluated dozens of installers in Thousand Oaks to find the top window installation companies for our readers. The providers mentioned in this article scored best in our categories, which include energy-efficient offerings, availability, customer service, price and more.
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 offers the best availability in Thousand Oaks. Andersen has around 27 years of experience in the industry, and it currently provides services to nearly every state except Mississippi and West Virginia. Many positive reviews from customers online back the provider's reputation.
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 right company for you.
Energy Efficiency of Renewal by Andersen WindowsRenewal by Andersen carries 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. 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 Thousand Oaks?Prices aren’t mentioned 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. The best way to get more accurate information is to get a free quote from the company.
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 offers windows expertise in Thousand Oaks. Window World has around 27 years of experience in the industry, and it currently provides services to 200 locations nationwide. Many positive reviews from customers online back the provider's reputation.
If you’re looking for a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital, Window World may be the right company for you.
Energy Efficiency of Window World WindowsWindow World carries 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 Thousand Oaks?Prices aren’t mentioned on Window World’s website, but it's known for offering some of the most affordable window installations around. The best way to get more accurate 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 offers the best local installation in Thousand Oaks. Milgard has around 60 years of experience in the industry, and it currently provides services to Anaheim, Riverside, Los Angeles, San Bernardino and Orange counties. Many positive reviews from customers online back the provider's reputation.
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 right company for you.
Energy Efficiency of Milgard Windows & Doors WindowsMilgard Windows & Doors carries 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. 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 Thousand Oaks?Prices aren’t mentioned on Milgard’s website, but it offers different kinds of windows at varying price points. The best way to get more accurate information is to get a free quote from the company.
Universal Windows Direct
- Makes charitable contributions
- Manufactures products in-house
- Wide variety of products and services
- Lifetime warranty
- Limited service area
- Some installations carried out by third-party contractors
- Quality of service will depend on your area
Universal Windows Direct offers the best warranty in Thousand Oaks. Universal has around 20 years of experience in the industry, and it currently provides services to 27 states nationwide. Many positive reviews from customers online back the provider's reputation.
If you’re looking for a company that has an industry-leading warranty covering products, parts and workmanship for life, Universal may be the right company for you.
Energy Efficiency of Universal Windows Direct WindowsUniversal Windows Direct carries 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. 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 Thousand Oaks?Prices aren’t mentioned on Universal’s 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 get more accurate information is to get a free quote from the company.
We aim to be unbiased and transparent by describing pros and cons for every company we review. Additionally, our rankings are not influenced by any partnerships.
More Window Companies in Thousand Oaks
Renewal by Andersen of Los Angeles
Torrance, CA- Price Transparency
- Educational Website
- Free assessment
- Good Customer Service
Services Offered
- Commercial Windows
- Glass Doors
- Andersen
- Bay Windows
- Window Install & Replacement
- Skylights
- Sliding Glass Doors
Window World of Los Angeles
Covina, CA- Educational Website
- Price Transparency
- Good Customer Service
- Free assessment
Services Offered
- Window Install & Replacement
- Vinyl Frames
- Bay Windows
- Double-Hung
- Sliding Glass Doors
American Vision Windows
Simi Valley, CA- Price Transparency
- Educational Website
- Good Customer Service
- Free assessment
Services Offered
- Wood Frames
- Stained Glass
- Fiberglass Frames
- Vinyl Frames
- Aluminum Frames
- Energy-Efficient Options
- Bay Windows
- Window Install & Replacement
- Sliding Glass Doors
The Window Factory
Simi Valley, CA- Educational Website
- Free assessment
- Good Customer Service
- Price Transparency
Services Offered
- Window Install & Replacement
- Triple Pane Glass
- Bay Windows
- Commercial Windows
- Sliding Glass Doors
- Energy-Efficient Options
- Glass Doors
Nu-Star Glass and Mirror
Simi Valley, CA- Price Transparency
- Good Customer Service
- Free assessment
- Educational Website
Services Offered
- Glass Showers
- Glass Doors
- Mirrors
- Glass Repair
- Window Repair
- Custom Glass
- Vinyl Frames
- Commercial Windows
- Energy-Efficient Options
- Fiberglass Frames
- Window Install & Replacement
Milgard Windows & Doors
Simi Valley, CA- Educational Website
- Price Transparency
- Good Customer Service
- Free assessment
- Timely Service
Services Offered
- Fiberglass Frames
- Glass Doors
- Sliding Glass Doors
- Milgard
- Window Install & Replacement
- Bay Windows
- Aluminum Frames
- Energy-Efficient Options
Agoura Sash & Door, Inc.
Westlake Village, CA- Good Customer Service
- Educational Website
- Free assessment
Services Offered
- Simonton
- Andersen
- Marvin
- Aluminum Frames
- Skylights
- Kolbe
- Window Install & Replacement
- Fiberglass Frames
- Glass Doors
- Sliding Glass Doors
- Milgard
- Ply Gem
Preferred Glass And Windows
Simi Valley, CA- Educational Website
- Free assessment
- Price Transparency
- Good Customer Service
Services Offered
- Glass Showers
- Stained Glass
- Mirrors
- Window Install & Replacement
- Commercial Windows
My Window Solutions
Newbury Park, CA- Free assessment
- Price Transparency
- Good Customer Service
Services Offered
- Window Repair
- Simonton
- Fiberglass Frames
- Window Install & Replacement
- Aluminum Frames
- Sliding Glass Doors
Frontier Windows & Doors
Canoga Park, CA- Price Transparency
- Good Customer Service
- Timely Service
- Free assessment
Services Offered
- Aluminum Frames
- Fiberglass Frames
- Window Install & Replacement
- Simonton
- Milgard
- Sliding Glass Doors
- Vinyl Frames
- Energy-Efficient Options
Oakstone Glass Corporation
Thousand Oaks, CA- Educational Website
- Good Customer Service
Services Offered
- Window Repair
- Glass Doors
- Commercial Windows
- Window Install & Replacement
- Glass Showers
- Mirrors
Arrow Glass
Thousand Oaks, CA- Good Customer Service
- Price Transparency
- Free assessment
- Educational Website
Services Offered
- Mirrors
- Glass Repair
- Window Install & Replacement
- Sliding Glass Doors
- Glass Showers
- Window Repair
Glass Illusions
Camarillo, CA- Educational Website
- Price Transparency
- Good Customer Service
- Free assessment
Services Offered
- Glass Showers
- Window Repair
- Window Install & Replacement
Emergency Glass repair and Board Up
Thousand Oaks, CA- Educational Website
- Price Transparency
- Free assessment
- Good Customer Service
Services Offered
- Glass Showers
- Glass Repair
- Glass Doors
- Window Install & Replacement
- Sliding Glass Doors
- Window Repair
- Commercial Windows
California Deluxe Windows
Chatsworth, CA- Price Transparency
- Free assessment
- Educational Website
- Good Customer Service
Services Offered
- Vinyl Frames
- Commercial Windows
- Glass Doors
- Custom Window Designs
- Window Install & Replacement
- Sliding Glass Doors
- Bay Windows
Westoaks Glass and Mirror, Inc.
Westlake Village, CA- Free assessment
- Timely Service
- Good Customer Service
- Price Transparency
Services Offered
- Tempered Glass
- Window Install & Replacement
- Skylights
- Glass Repair
- Commercial Windows
- Glass Showers
- Window Repair
- Mirrors
- Custom Glass
Sivan Windows and Doors - Los Angeles Window and Door Replacement Company
Northridge, CA- Timely Service
- Free assessment
- Good Customer Service
- Price Transparency
- Educational Website
Services Offered
- Fiberglass Frames
- Aluminum Frames
- Window Install & Replacement
- Sliding Glass Doors
- Milgard
- Commercial Windows
- Simonton
- Custom Window Designs
Clear Choice USA-Simi Valley
Simi Valley, CA- Good Customer Service
- Price Transparency
- Educational Website
Services Offered
- Window Install & Replacement
SoCal Energy Contractors, Inc.
Northridge, CA- Good Customer Service
- Free assessment
- Educational Website
- Price Transparency
Services Offered
- Sliding Glass Doors
- Window Install & Replacement
- Energy-Efficient Options
- Vinyl Frames
- Glass Doors
Valley Doors Group
Woodland Hills, CA- Good Customer Service
- Price Transparency
- Educational Website
Services Offered
- Window Install & Replacement
- Glass Doors
- Fiberglass Frames
Calculate how much you can expect to pay for window installation and replacement in Thousand Oaks, 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 Thousand Oaks Saves You Money
Upgrading to energy-efficient windows can improve the comfort of your home and help you save on energy bills. Here are more details about how switching out your windows could help you:
- Protect your valuables from fading: The low-emissivity coatings on many energy-efficient windows filter out damaging UV rays, preventing your furniture, carpet and other valuables from fading.
- Reduce your carbon footprint: By using less energy once upgrading to energy-efficient windows, you’ll also be cutting your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Save money on power bills: According to the Department of Energy, heat gained or lost through windows accounts for about 25-30% of residential energy use. Installing energy-efficient models can help decrease that amount, therefore saving you about 12% more on your bills.
- 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. Updating your windows could help increase the value of your home if you decide to sell.
Estimated Cost of Window Replacement in Thousand Oaks
Windows come in varying styles, purposes and shapes, so costs and services will differ tremendously depending on your project. Below, we go over the typical cost and services that you’ll find from window installers.
How Much Do New Windows Cost?
Though the typical cost of installing one window is about $600, it can range anywhere from $200 to $1,200. But prices differ remarkably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window companies also offer door installations, which will add extra costs to your project.
Whether or not you opt for energy-efficient windows is another factor that will determine the cost. These will usually cost more than other windows, but on the other hand, you can save about $572 a year on your energy bills in Thousand Oaks.
The cost of your window installation will also vary depending on the kind of window material you choose for the frames. Wood windows are generally the most expensive, but it depends on whether they are solid 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?
The first step when considering a replacement is to think about whether you need a full-frame or pocket installation.
A full-frame installation is a total window replacement. This service involves removing the old window, the sill, and the exterior and interior trim. It also involves other materials, including insulation and drip edges, which raise the total cost of the project. Also worth noting: you may have to touch up the paint around the window after a full-frame installation. A pocket installation means replacing a window without taking out the entire frame, which tends to be less expensive than a full-frame installation.
If you’re still debating which type of installation you should get, you can consult with your installer and get their advice. The choice mostly is influenced by the age of your window frames and if there’s any damage.
Best Availability
Renewal by Andersen
- Great industry reputation
- Member of US Green Building Council
- Manufactures products in-house
Best Energy-Efficient Features
Champion
- Many years of experience
- Low prices relative to competitors
- Limetime warranty
Window Veteran
Window World
- EnergyStar Partner
- Wide variety of products and services
- Lifetime Warranty
How We Choose the Best Window Installers in Thousand Oaks
The EcoWatch Reviews team differs from other reviewers, as we examine these companies through a sustainability lens. We’ve evaluated the best window installation companies in Thousand Oaks mostly based on their energy efficient offerings, as the most sustainable option also benefits homeowners in many ways. Energy Star certified windows have been shown to cut your energy bills by hundreds of dollars. Along with energy efficiency, our rating methodology is based on the following factors:
Service Area
This one is self-explanatory, but we’ve chosen to highlight window installers that serve Thousand Oaks so you can find a quality window installation company near you.
Work Quality
We’re certain that you’re not looking for a company to do a shoddy job installing windows. We’ve vetted each company included on this list to ensure its contractors are well-qualified and that the company has received tons of positive customer feedback to vouch for its service.
Customer Reviews
Customer feedback is another super important review factor. If the majority of customers don’t have good things to say about their service from a certain installer, you won’t see it featured on EcoWatch.
Cost
Cheaper windows certainly don’t mean better windows, but we know many of our readers want to keep costs low when possible. When analyzing providers’ prices, we gave higher points to companies with reasonable prices and accessible financing rather than “cheaper” services.
Warranty
Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies that give you lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Last but not least, we like to see companies that have a proven track record in the industry. Window installers that have more experience earn higher rankings by our standards. We like to see at least ten years of experience.
Thousand Oaks, CA Window Replacement FAQs
What is the typical cost to replace windows?
The average cost of installing a single window can range between $450 and $650. There are a variety of factors that influence the cost, which include how energy-efficient the windows are, the materials used in designing the windows, local labor costs, your property’s location, the number of windows and styles and sizes of windows.
What are the most common types of replacement windows?
There are several different types of windows you can get for your home, including awning windows, picture windows, casement windows, transom windows, double-hung and single-hung windows, slider windows and bay windows.
What services do window installation companies provide?
Window installation professionals will do the entire process — from replacing your old windows with brand-new ones to cleaning up after the windows have been put in place. In addition, a lot of companies offer window manufacturing, customization and repairs.
How long does window installation typically take?
Since the average installation time is 30 minutes per window, about 16 windows can be installed in an 8-hour work day.