About Energy Star Exteriors in Westminster, CO

Quality Replacement Windows Installed in Metro Denver

Replacement windows add comfort, beauty and value to your Westminster, Thornton, Arvada home

replacement windows in Colorado

Affordable remodeling. Window replacement is a cost-effective way to give your home a fresh look.

At Energy Star Exteriors we install replacement windows in a wide range of styles and quality materials to match your home's style and fit your budget. We work with leading window manufacturers to be able to offer the best products and warranties.

No matter what your reason for replacing your windows, whether it's greater comfort and energy efficiency, less maintenance or improved appearance (or all of the above), we can help you choose the perfect replacement windows to solve all your needs. 

Call us or click below to schedule a free estimate for window replacement in Westminster, Thornton, Arvada or nearby.

Choose your window frame material

Whether you want to replace your existing windows with the same frame material or you're interested in a different material, we offer a wide selection of options and materials to make it easy to match your home's design and your other windows and doors.

  • Vinyl windows: Vinyl windows offer excellent energy efficiency and durability at an affordable price. Learn more about our vinyl replacement windows and installation.
  • Wood windows: Interior wood frames combined with exterior aluminum provides timeless beauty, durability and excellent insulative value. We can replace your current windows with beautiful, energy-efficient wood windows that are made to last.
  • Fiberglass windows: Fiberglass windows are extremely energy efficient and can provide the look of painted wood in a high-performance design. Browse our fiberglass windows and installation services.

There are a wide selection of window styles to choose from:

  • Double-hung windows
  • Casement windows
  • Bay & bow windows 
  • Sliding windows
  • Awning windows
  • Picture windows

Products

Simonton recognizes the need for high quality products, fit for your window and door needs. After being established in 1946, Simonton continued to grow and perfect their product line, changing with the time and providing the best service, quality, and materials on the market. 

Vinyl Windows

Vinyl windows provide a durable, low maintenance and energy efficient window option, at a great value, and Simonton brings you the very best in vinyl windows. With Simonton, you are ensured a lifetime of comfort and quality with their Double-Lifetime Limited Warranty and AAMA Gold Certification for all of their windows. This advanced certification program tests for thermal performance as well as air, water and structural integrity, so you know you are getting a superior product.

Vinyl is one of the best materials to choose for your windows, and will add to the value of your home. An excellent insulator, vinyl windows can help lower utility bills they are trustworthy through the most extreme weather conditions; they never need more than an occasional rinse to stay looking new for years; and they are a breeze to operate. Simonton Windows allows you to easily find the perfect style of windows for your home, with every window custom built to your exact specifications.

Take a look at the style catalog to help you choose the ultimate window solution for your home:

Simonton Reflections - Style Guide
Simonton Reflections - Asure Warranty

For over 25 years, Cascade Windows has provided high quality, energy efficient windows for replacement and new construction projects. With years of experience, backed by a strong sense of honesty and integrity, you can rely on Cascade Windows to get the job done.

Cascade Windows

Simplicity of traditional wood windows with the easy maintenance of vinyl windows!

Features Include:

  • Available in Picture, Slider, Single Hung, Casement, Awning and Specialty Shape
  • Custom sizing available
  • Tons of colors to choose from
  • Extremely energy efficient
  • Low maintenance

 

New windows offer many benefits for you and your home

  • Fewer drafts: Single-pane windows are often drafty and they are the least energy efficient. New windows are built better to reduce drafts and greatly improve the comfort of your home year round.
  • Less maintenance: Old painted windows require regular maintenance. New windows made from vinyl or a composite are not only durable, they're also maintenance-free, never need to be painted and are easier to clean.
  • Reduced noise: New windows can not only reduce the amount of sound entering your home from outside, but they can also reduce the amount of noise that comes out of your house.
  • Energy savings: Replacing your old, drafty single-pane windows with ENERGY STAR® qualified energy-efficient windows can save you as much as $500 annually on heating and cooling costs.
  • Added security: Most new windows are tested for forced entry and are designed with multiple locks to improve the safety.
  • Enhanced curb appeal: New windows can improve your home's appearance - inside and out. There are many window styles and trim styles available to compliment the architecture of your home and your personal style. If you're thinking about putting your home on the market, new windows are a good selling point.

Get your free estimate for hassle-free window replacement

Replacement windows can give your home the look and comfort you need and provide potential savings on your energy bills. Proper window replacement can also drastically increase the value of your home. Get started with a free estimate!

Energy Star Exteriors is the trusted contractor for window solutions in Boulder, Littleton, Fort Collins, Denver, Longmont, Greeley, Englewood and many surrounding areas.

Looking for a price? Get a no cost, no obligation free estimate.

Serving CO including the Greater Westminster area
Cities in Adams County, CO
Aurora
Brighton
Commerce City
Denver
Dupont
Eastlake
Henderson
Thornton
Watkins
Westminster

Cities in Arapahoe County, CO
Aurora
Denver
Englewood
Littleton

Cities in Boulder County, CO
Boulder
Erie
Lafayette
Longmont
Louisville

Cities in Broomfield County, CO
Broomfield

Cities in Denver County, CO
Denver

Cities in Douglas County, CO
Castle Rock
Franktown
Larkspur
Littleton
Lone Tree
Louviers
Parker
Sedalia

Cities in El Paso County, CO
Monument
Palmer Lake

Cities in Jefferson County, CO
Arvada
Broomfield
Buffalo Creek
Conifer
Denver
Evergreen
Golden
Idledale
Indian Hills
Kittredge
Littleton
Morrison
Pine
Wheat Ridge

Cities in Larimer County, CO
Berthoud
Fort Collins
Loveland
Timnath

Cities in Weld County, CO
Brighton
Dacono
Evans
Fort Lupton
Frederick
Greeley
Johnstown
La Salle
Longmont
Mead
Milliken
Platteville
Windsor

Our Locations:

Energy Star Exteriors
8120 Sheridan Blvd #B-311
Westminster, CO 80003
1-720-361-0888
Energy Star Exteriors is a Veteran Owned Small Business
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