20 Best Window Companies in Thornton, CO (2024 Reviews)
Thinking about improving your property’s appearance? The best window replacement companies can help.
We analyzed all the top-rated window companies in Thornton 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
Whether you're updating for aesthetics or have damaged windows, windows play a vital role in conserving your home's energy. Potential leaks or drafts from your windows can make your home uncomfortable in the summer or winter.
Installing upgraded, efficient windows on your home can help you save money every month on your energy bills — and you can help the environment as well.
Unlike other sites, EcoWatch ranks window installation companies based on energy efficiency while also factoring in cost, customer satisfaction and service area.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- 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
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
Best Window Installation & Replacement Companies in Thornton
The EcoWatch team evaluated several installers in Thornton to find the best ones for our readers. We assessed the companies based on their energy-efficient offerings, coverage area, price, local experience, customer service 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 Thornton. Window World has about 27 years of experience in the window replacement business. Its reputation is backed by hundreds of positive reviews from customers online.
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 appeals to eco-conscious consumers by providing energy-efficient window offerings. 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 Thornton?Window World doesn’t have any prices available on its website, but it's known for offering some of the most affordable window installations around. For more accurate information on pricing, you can ask for 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 Thornton. Andersen has about 27 years of experience in the window replacement business. Its reputation is backed by hundreds of positive reviews from customers online.
It 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 appeals to eco-conscious consumers by providing energy-efficient window offerings. 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 Thornton?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. For more accurate information on pricing, you can ask for a quote from the company.
We strive to stay unbiased and transparent by describing pros and cons for every company we review. Additionally, our rankings are not affected by any partnerships.
More Window Companies in Thornton
Renewal by Andersen Window Replacement
Denver, CO- Comprehensive 20-year warranty
- Price Transparency
- Educational Website
- Good Customer Service
- Free assessment
- Hassle-free window replacement
- Also offers door installation and replacement
Services Offered
- Bay Windows
- Double-Hung
- Window Replacement/Installation
- Glass Doors
- Custom Window Designs
- Energy-Efficient Options
- Vinyl Frames
Champion Replacement Windows of Denver
Denver, CO- Price Transparency
- Free assessment
- Good Customer Service
Services Offered
- Bay Windows
- Glass Doors
- Window Replacement/Installation
- Double-Hung
Champion Replacement Windows of Ft. Collins
Loveland, CO- ENERGY STAR® certified
- Products made in the USA
- Good Customer Service
- Price you're quoted is the price you pay
- Free assessment
- Price Transparency
Services Offered
- Bay Windows
- Double-Hung
- Window Replacement/Installation
- Glass Doors
Power Home Remodeling
Centennial, CO- Price Transparency
- Good Customer Service
- Timely Service
- Free assessment
Services Offered
- Energy-Efficient Options
- Window Replacement/Installation
Window Nation
Aurora, CO- Price Transparency
- Good Customer Service
- Free assessment
- Educational Website
Services Offered
- Window Replacement/Installation
- Bay Windows
- Double-Hung
- Energy-Efficient Options
- Glass Doors
- Custom Window Designs
DaBella
Denver, CO- Triple-pane vinyl windows
- Good Customer Service
- Timely Service
- Customized to your home
- Wide range of styles
Services Offered
- Glass Doors
- Vinyl Frames
- Window Replacement/Installation
- Double-Hung
Colorado Glass and Mirror LLC
Denver, CO- Free assessment
Services Offered
- Mirrors
- Custom Glass
- Glass Showers
- Window Repair
- Window Replacement/Installation
K&G Window Pros
Brighton, CO- Educational Website
- Free assessment
Services Offered
- Window Replacement/Installation
- Glass Doors
True View Windows & Glass
Westminster, CO- Free assessment
- Good Customer Service
- Educational Website
- Price Transparency
- Timely Service
Services Offered
- Glass Doors
- Window Repair
- Mirrors
- Glass Showers
- Tempered Glass
- Window Replacement/Installation
BlueBird Windows & Doors
Lafayette, CO- Price Transparency
- Free assessment
- Good Customer Service
- Educational Website
Services Offered
- Window Replacement/Installation
- Bay Windows
- Double-Hung
- Energy-Efficient Options
- Glass Doors
A&M WINDOW SERVICE
Northglenn, CO- Free assessment
Services Offered
- Mirrors
- Glass Doors
- Window Repair
- Glass Repair
- Energy-Efficient Options
- Glass Showers
- Window Replacement/Installation
New Windows for America
Brighton, CO- Free assessment
- Good Customer Service
- Educational Website
- Price Transparency
Services Offered
- Window Replacement/Installation
- Energy-Efficient Options
Colorado Classic Exteriors: Windows, Doors, Pergolas
Arvada, CO- Good Customer Service
- Free assessment
- Price Transparency
- Educational Website
Services Offered
- Window Replacement/Installation
- Glass Doors
Window World of Denver
Denver, CO- Educational Website
- Timely Service
- Good Customer Service
- Free assessment
- Price Transparency
Services Offered
- Custom Window Designs
- Bay Windows
- Glass Doors
- Energy-Efficient Options
- Triple Pane Glass
- Double-Hung
- Window Replacement/Installation
KV Windows Inc.
Westminster, CO- Free assessment
- Timely Service
- Good Customer Service
- Educational Website
Services Offered
- Glass Doors
- Bay Windows
- Window Replacement/Installation
- Double-Hung
Discount Windows & Siding, INC
Denver, CO- Free assessment
- Good Customer Service
- Price Transparency
Services Offered
- Window Replacement/Installation
- Energy-Efficient Options
- Vinyl Frames
- Custom Window Designs
- Glass Doors
Performance Windows
Broomfield, CO- Good Customer Service
- Free assessment
- Price Transparency
- Educational Website
Services Offered
- Window Replacement/Installation
Gravina's Window Center of Littleton
Denver, CO- Free assessment
- Educational Website
- Good Customer Service
- Price Transparency
Services Offered
- Double-Hung
- Glass Doors
- Energy-Efficient Options
- Custom Glass
- Fiberglass Frames
- Wood Frames
- Window Replacement/Installation
Lifetime Windows & Siding
Denver, CO- Free consultation
- Good Customer Service
- Infinity by Marvin windows
- Educational Website
- Free assessment
- Durable and efficient upgrades
- Price Transparency
Services Offered
- Fiberglass Frames
- Glass Doors
- Double-Hung
- Window Replacement/Installation
- Custom Window Designs
- Glass Showers
- Energy-Efficient Options
Mountainland Covers
Commerce City, CO- Educational Website
- Good Customer Service
- Price Transparency
- Free assessment
Services Offered
- Window Replacement/Installation
- Metal Frames
- Custom Window Designs
Calculate how much you can expect to pay for window installation and replacement in Thornton, CO 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 Thornton Saves You Money
There are several benefits of upgrading to energy-efficient windows. Some reasons you may want to consider making the change are the following:
- Protect your valuables from fading: When you upgrade to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out damaging UV rays.
- Decrease your carbon footprint: Since energy-efficient windows improve the insulation in your house, you can lower your indirect greenhouse gas emissions by about 12%, according to Energy Star.
- Protect your investment: Keeping your windows up to date is an important part of maintaining your property and its real estate value, particularly if your home is on the older side.
- Save money on power bills: Installing energy-efficient windows lowers your energy bills by about 12% because you need less energy.
Estimated Cost of Window Replacement in Thornton
Windows come in various shapes and sizes, so costs and services will differ greatly. Here are the typical costs and services that you’ll find from the average window installation company.
How Much Do New Windows Cost?
Although the typical cost of replacing one window is around $600, it can range anywhere from $200 to $1,200. How much it will cost depends on several factors, like number of windows, material, size, the location of your home, type and more.
With windows, efficiency is one of the most important factors for most homeowners. High efficiency windows may cost more initially, but by increasing the efficiency of your home — particularly during the summer and winter — they can provide decades of energy savings. According to Energy Star, buying certified energy-efficient windows can save Thornton homeowners $455+ a year after replacing single-pane windows.
Another factor that affects the overall cost is the material you select for your frame. Aluminum frames are usually the least pricey and are sturdy and relatively maintenance-free, but they offer poor insulation. On the other hand, wood frames are the most expensive because 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 an installation is to decide whether you need a full-frame or pocket installation.
A full-frame installation is a replacement of the total window. It involves removing the old window, the sill, and the exterior and interior trim. It can also involve other materials, including insulation and drip edges, which increase the overall cost of the project. Also worth noting: it’s not uncommon for homeowners to have to touch up the paint around 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. But, if the frame has any rot or deterioration, you will likely need a full-frame installation instead.
Your window installation company should be able to help you understand what’s best for your needs. In Thornton, the decision will mostly be based on how old your windows are and if there’s any moisture damage. Wood can decay if it’s not properly maintained over the years, so it’s good to have a professional assess your frames and window sills.
Best Availability
Renewal by Andersen
- Great Industry Reputation
- Award-winning Company
- 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
Power Home
- Uses eco-friendly materials
- Well-trained, certified installers
- Lifetime or lengthy warranty
How We Choose the Best Window Installers in Thornton
In our search to find the most reliable, eco-friendly window installers in Thornton, the EcoWatch Reviews team examined dozens of companies before landing on these. We’ve decided to evaluate the top window installers in Thornton mainly based on energy efficiency, as it’s the most sustainable option and the best one for homeowners. Energy Star certified windows have been shown to reduce your electricity bills by hundreds of dollars. Along with energy efficiency, our rating methodology takes the following factors into consideration:
Service Area
This one is self-explanatory, but we’ve chosen to highlight window installation companies that serve a wide variety of states and cities so you can find a quality 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 insulation and performance as the brand you opt for. We do give window installers more points if they offer high-quality products, but we also consider workmanship as reflected in customer feedback.
Customer Reviews
Customer feedback is another super important review factor. If the majority of customers don’t have positive things to say about their service from a certain installer, you won’t see it featured on EcoWatch.
Cost
Cheaper windows don’t necessarily mean better windows, but we know many of our readers want to keep costs as low as possible. When analyzing providers’ prices, we awarded 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 with lengthy warranties for products, parts and labor rank higher with EcoWatch.
Years of Experience
Because of Thornton’s climate, homeowners will want to mitigate rot, water damage and low efficiency. We factored in local experience to reflect the ability of Thornton window companies to prepare homes for these issues. If a company has less than 10 years of experience, it loses points in this category.
Thornton, CO Window Replacement FAQs
How much should a window install cost?
The national average cost of replacing a single window is around $600 but can range between $200 and $1,200, depending on a few different factors. The price is typically dependent on the type and material of the window, the location of your property and the size of the window. Also, remember that energy-efficient windows may cost more initially but can save you a decent amount of money a year in energy bills.
What are the different types of windows?
There are several different kinds of windows you can get for your home, including picture windows, transom windows, casement windows, bay windows, double-hung and single-hung windows, slider windows and awning windows.
Can I replace my own windows?
Although you can install your own windows, doing so is time-consuming and requires a lot of experience with home improvement projects. Using a window replacement 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.
When is it time to replace your windows?
Windows typically have a lifespan of around 20 to 30 years, but anytime you notice damage on your windows, it’s a good time to have an expert take a look at them to see if they need any repairs or replacements.
How long does window installation generally take?
Since a window takes about 30 minutes to install, about 16 windows can be installed in an 8-hour work day.