20 Best Window Companies in Wellington, CO (2024 Reviews)
If you’re looking to get new windows, our guide to the top window installation companies can help.
We analyzed all the top-rated window companies in Wellington 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 Wellington may not seem like the most riveting article on EcoWatch, but trust us, windows impact your life more than you might think. When it’s the middle of winter, your outdated and leaky windows could be making your home harder to heat and more uncomfortable for you.
Installing energy-efficient windows on your house can help you save money each month on your energy bills — and you can help the environment as well.
Efficient windows are of particular importance in Wellington, where winters are long and cold. According to Energy Star, switching to energy-efficient windows can save the average homeowner up to $522 a year.
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 Wellington
The EcoWatch Reviews team researched several window companies in Wellington to find the best ones for our readers. The providers in this article scored the best in our review categories, such as energy-efficient offerings, customer service, availability, local expertise, price 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 offers windows expertise in Wellington. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has been operating since 1995 and currently provides services to 200 locations nationwide.
You may want to consider going with 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 make sure you mention that you’re interested in Energy Star windows when inquiring.
How much does Window World cost in Wellington?Window World does not detail prices on its website, but 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.

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 Wellington. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. This company has been operating since 1995 and currently provides services to nearly every state except Mississippi and West Virginia.
You may want to consider going with 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 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 make sure you mention that you’re interested in Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Wellington?Andersen does not detail 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. For more detailed information on the cost, you can receive a quote from the company.
We strive to stay unbiased and transparent by mentioning pros and cons for every installer. Additionally, any partnerships do not influence our rankings.
More Window Companies in Wellington
Renewal by Andersen Window Replacement
Longmont, COFree assessment
Price Transparency
Good Customer Service
Services Offered
Metal Frames
Bay Windows
Double-Hung
Custom Window Designs
Glass Doors
Vinyl Frames
Window Replacement/Installation
Energy-Efficient Options
Champion Replacement Windows of Ft. Collins
Loveland, COGood Customer Service
Free assessment
ENERGY STAR® certified
Products made in the USA
Price you're quoted is the price you pay
Price Transparency
Services Offered
Glass Doors
Window Replacement/Installation
Double-Hung
Bay Windows
DaBella
Cheyenne, WYTimely Service
Good Customer Service
Services Offered
Window Replacement/Installation
Double-Hung
Glass Doors
Vinyl Frames
AllGuard Windows and Doors Fort Collins
Fort Collins, COGood Customer Service
Price Transparency
Free assessment
Services Offered
Energy-Efficient Options
Vinyl Frames
Glass Doors
Window Replacement/Installation
Wood Frames
Metal Frames
Double-Hung
Fiberglass Frames
Loveland Window Cleaning Services
Loveland, COFree assessment
Good Customer Service
Services Offered
Energy-Efficient Options
Window Replacement/Installation
Powerhouse Roofing and Exteriors
Greeley, COEducational Website
Price Transparency
Free assessment
Good Customer Service
Services Offered
Window Replacement/Installation
Custom Exteriors
Berthoud, COFree assessment
Good Customer Service
Educational Website
Timely Service
Price Transparency
Services Offered
Vinyl Frames
Window Replacement/Installation
Bay Windows
Glass Doors
Glass Doctor of Fort Collins
Fort Collins, COPrice Transparency
Educational Website
Good Customer Service
Services Offered
Window Repair
Window Replacement/Installation
Glass Doors
Glass Showers
Custom Glass
Mirrors
Energy-Efficient Options
Glass Repair
Nex-Gen Windows & Doors
Fort Collins, COGood Customer Service
Educational Website
Price Transparency
Free assessment
Services Offered
Glass Doors
Double-Hung
Window Replacement/Installation
Energy-Efficient Options
Bay Windows
Vinyl Frames
3 Bidz Windows
Loveland, COFree assessment
Price Transparency
Good Customer Service
Educational Website
Services Offered
Glass Doors
Wood Frames
Window Replacement/Installation
Vinyl Frames
Rocky Mountain Glass & Shower LLC
Longmont, COEducational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Energy-Efficient Options
Window Repair
Mirrors
Glass Showers
Glass Doors
Window Replacement/Installation
Tempered Glass
WestPro | Roofing, Siding, Windows
Longmont, COEducational Website
Good Customer Service
Price Transparency
Free assessment
Services Offered
Storm/Impact Windows
Glass Doors
Window Replacement/Installation
Skylights
BlueBird Windows & Doors
Lafayette, COGood Customer Service
Free assessment
Educational Website
Price Transparency
Services Offered
Double-Hung
Glass Doors
Energy-Efficient Options
Window Replacement/Installation
Bay Windows
Slade Glass Co.
Boulder, COEducational Website
Free assessment
Good Customer Service
Price Transparency
Services Offered
Window Replacement/Installation
Mirrors
Glass Repair
Glass Showers
K&G Window Pros
Brighton, COFree assessment
Educational Website
Services Offered
Glass Doors
Window Replacement/Installation
Cowboy Glass LLC
Laramie, WYPrice Transparency
Good Customer Service
Free assessment
Educational Website
Services Offered
Mirrors
Window Replacement/Installation
Custom Glass
Glass Showers
Colorado Glass and Mirror LLC
Denver, COFree assessment
Services Offered
Mirrors
Glass Showers
Custom Glass
Window Replacement/Installation
Window Repair
True View Windows & Glass
Westminster, COEducational Website
Timely Service
Free assessment
Good Customer Service
Price Transparency
Services Offered
Glass Showers
Mirrors
Tempered Glass
Glass Doors
Window Repair
Window Replacement/Installation
Ram Glass
Fort Collins, COGood Customer Service
Price Transparency
Free assessment
Services Offered
Glass Showers
Glass Doors
Window Repair
Glass Repair
Window Replacement/Installation
Mirrors
Custom Glass
The Glass Guru
Loveland, COGood Customer Service
Educational Website
Free assessment
Services Offered
Fiberglass Frames
Glass Doors
Window Replacement/Installation
Glass Showers
Skylights
Mirrors
Custom Glass
Energy-Efficient Options
Tempered Glass
Vinyl Frames
Glass Repair
Storm/Impact Windows
Wood Frames
Triple Pane Glass
Screen Repair
Window Repair
Metal Frames
Calculate how much you can expect to pay for window installation and replacement in Wellington, 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 Wellington Saves You Money
There are several perks of upgrading to energy-efficient windows. A few reasons you may want to consider making the switch include the following:
- Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% after you install Energy Star certified windows. In Wellington, that’s about 460 pounds per year on average.
- Protect your valuables: The low-emissivity coatings on many Energy Star certified windows help reduce damage from the sun's UV rays to your floors, carpets and furniture.
- Save on power bills: Upgrading to energy-efficient windows reduces your energy bills by about 12% since you need less energy.
- Protect your investment: If your home is on the older side, your windows are most likely in need of replacement. Updating your windows can make your home more comfortable and also help raise the value of your property if you decide to sell.
Estimated Cost of Window Replacement in Wellington
Let’s go over the cost of window replacement and the kinds of services offered by installers.
How Much Do New Windows Cost?
Generally, Wellington homeowners can expect their window replacements to range from $250 to $1,200. The average cost sits at about $600. This is because the cost of window installations depend on several factors specific to your home, such as the size, material and number of windows you need to install, as well as the location of your property.
Whether or not you pick energy-efficient windows is another factor that will affect the cost. These will typically cost more than other windows, but on the other hand, you can save about $522 a year on your energy bills in Wellington.
How much your window installation costs will also vary based on the kind of material you choose for the frames. Wood windows are typically the most expensive, but it depends on whether they are completely wood or clad with aluminum or vinyl. Fiberglass windows also tend to be a bit more expensive than vinyl, but they are shown to be more efficient.
What Services do Window Installers Offer?
The first question to ask yourself when getting new windows is: Should you get a full-frame installation or a pocket installation?
Full-frame installations are usually recommended when you want a new style or your window has a lot of rot or deterioration. With this service, your professionals will replace the whole window, including the trim, sill and frame. 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 recommend the best type for your project. In Wellington, the decision will mostly depend on the efficiency of your home and how old your existing frames are.
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 Wellington
EcoWatch reviews differ from other reviews because we examine these companies through a sustainability lens. We have assessed the top window installers in Wellington mostly based on energy efficiency, as it’s the most sustainable option and the best one for homeowners. Energy-efficient windows have been shown to reduce 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 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 not looking for a company to do a shoddy job installing windows. We’ve vetted each installer featured on this list to ensure its contractors are well-qualified and that the company has gotten tons of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed patterns in recent customer feedback to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction may be the most important factor, as it indicates the quality of services across most other categories, including professionalism, quality of installation, cost, warranty, quality of parts and more.
Cost
This one is a give-and-take: as with most services, cheap window installers won’t always provide the most quality service. On the other hand, we want to ensure we’re highlighting companies that offer a range 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 have lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Lastly, we like to see companies that have a good track record in the industry. Window installers that have more experience are going to earn higher rankings by our standards. We like to see at least ten years of experience.
Wellington, CO Window Replacement FAQs
How much does window installation cost?
The typical cost to replace a single window can range from $450 to $650. There are many factors that affect how much it costs, including the number of windows, how energy-efficient the windows are, the materials used in designing the windows, your property’s location, styles and sizes of windows and local labor costs.
What are the most common types of replacement windows?
The most common types of windows for homes include: bay windows, awning windows, picture windows, double-hung and single-hung windows, casement windows, transom windows and slider windows.
Can I replace my own windows?
Even though you can install your own windows, doing so is time-consuming and requires a lot of handiness. Hiring a professional can help guarantee that the job is done properly and that you can avoid spending the time and effort of doing it yourself.
Should I replace all my windows at once?
If you want to get more efficient windows and save money on your energy bills, replacing all your windows at once is the only way to gain that benefit. On the other hand, if you have only a few windows that are broken or drafty, you can replace just those.
How long does it usually take to install windows?
Each window takes about 30 minutes to install depending on the type of window. However, the window installation can be a two-day job — or more — if you need to have a lot of windows installed.