Replacement Windows in Denver, CO

We’ve found local, trusted contractors ready to help with your project.

Replacement Window Contractors in Denver, CO

Reviews you can trust.
Modernize has verified ratings and reviews from real homeowners, but we don't stop there - we show ratings from other trusted sources like Google.
COVID-19 Update: We will respond to inquiries from our customers for both installation and service and are taking precautions seriously. We… More
  • 33 Years in Business
  • Offers Financing
Quality begins at home. We are the premiere home improvement company, with service and products that will keep you happy… More
  • 10 Years in Business
  • Accepts Emergency Requests
At ARS/Rescue Rooter, your comfort is our priority. Always. From plumbing emergencies to heating repair, air conditioning installation and attic insulation,… More
  • 46 Years in Business
  • Accepts Emergency Requests
Sunrun is the nation's largest residential solar, storage and energy services company. With a mission to create a planet run by… More
  • 17 Years in Business
  • Offers Financing
Ready to start
your project?
For more than 25 years, Power Home Remodeling has been the most trusted name in replacement windows, siding, roofing, and doors.… More
  • 29 Years in Business
  • Offers Financing
We have lots of technicians and lots of service trucks across the country. You know what that means? It means that… More
  • 25 Years in Business
  • Accepts Emergency Requests
Home is your most significant investment. It is the place where you find shelter, raise your family and build memories. As… More
  • 10 Years in Business
  • Offers Financing
Founded in 1998, Clockwork Home Services (formerly VenVest Inc.) established and built nationally branded franchises for the home services contractor market.… More
  • 23 Years in Business
  • Accepts Credit Card
Owens Corning Platinum Preferred Roofing Contractor. Since 2013, Cenco Building Services has proudly offered some of the most professional and dependable… More
  • 8 Years in Business
  • Accepts Emergency Requests
With over six decades of experience and expertise, Champion Windows and Home Exteriors is one of the nation??s leading home improvement… More
  • 6 Years in Business
  • Offers Financing
Ranked No.1 Full Service Remodeler based on sales by Remodeling Magazine May 2018. Since 1989, Dreamstyle Remodeling has been on a… More
  • 32 Years in Business
  • Offers Financing
We are committed to providing home and business owners with an easy way to be powered by affordable, clean and reliable… More
  • 10 Years in Business
  • Offers Financing
Blue Raven Solar was established in 2014 with one goal in mind: to provide homeowners across America with a simple and… More
  • 7 Years in Business
  • Accepts Credit Card
K&H Home Solutions is a family owned business and the oldest home remodeling company in Denver, proudly serving the front range… More
  • 65 Years in Business
  • Offers Financing
Beldon is an established family-run company that has been producing highly satisfied customers for well over half a century. We have… More
  • 75 Years in Business
  • Accepts Emergency Requests
Exterior Remodeling, Roofing, Siding, Windows, Gutters, Attic Insulation, Interior Remodeling, Kitchens, Bathrooms, Basements, Home Additions, Hail Damage Repair More
  • 17 Years in Business
  • Insured
When you decide to start saving by going solar, one of our experienced Energy Consultants will come to your home to… More
  • 9 Years in Business
  • Accepts Credit Card
We here at Phoenix Clean Energy are passionate about contributing to a world which does not depend on power from fossil… More
  • 11 Years in Business
  • Accepts Credit Card
1st Choice Windows and Siding has been installing quality in the Denver metro area and suburbs since 1995. At 1st Choice… More
  • 26 Years in Business
  • Accepts Emergency Requests
We are Colorado's premier Solar engineering firm, and we offer the best technology, engineering, and customer service at an affordable price.… More
  • 12 Years in Business
  • Offers Financing
Since 1985, SunPower has been leading global solar innovation. SunPower solar panels consistently deliver more energy and long-term peace of mind… More
  • 36 Years in Business
  • Accepts Credit Card
Quality at a price you can afford. Here at 5280 Heating & Air Conditioning, we have been installing furnaces and air… More
  • 24 Years in Business
  • Accepts Emergency Requests
Since I started PetersenDean 35 years ago, we have fulfilled our mission of delivering world-class roofing and solar power systems at… More
  • 38 Years in Business
  • Offers Financing
Temporary SunKey text More
  • 5 Years in Business
AHT Wisconsin Windows is ready to help you make your home more beautiful, more comfortable and more energy-efficient with home improvements… More
  • 8 Years in Business
Find more Contractors in Denver, CO
  • Trusted Professionals
  • Quick & Easy
  • Free Quotes
How much will your window project cost?

Average cost: $150 - $750 per window. Use Modernize's calculator to better estimate the cost of your window project.

Estimate my project
Why use Modernize?
Contractors map
We’ve negotiated with 500+ home improvement installers to give you the best prices.
Compare offers from trusted window replacement contractors like:
Finish your project today
We quickly and easily connect you with trusted local window replacement contractors so you can get free quotes, compare prices, and hire the best fit for your windows project.
$0 down, no commitment
  • No obligation to purchase
  • Free cancellations
  • Trusted by over 2 million customers each year!
Trusted & secure
Modernize BBB Business Review

Find Local Replacement Windows with Modernize

“I have old windows in my home and I need to replace them.”

Denver Window Replacement Guide

There is always a litany of repairs that a homeowner has to manage, some requiring constant maintenance while others require virtually none for years. Windows certainly fall into the latter category with most only needing to be replaced every 10 to 40 years. Because of this, many homeowners are at a loss for where to start when it comes time to upgrade their home’s windows. These renovations aren’t inexpensive either. In fact, the 2015 Remodeling Impact Report from the National Association of Realtors found that window renovations in an average 2,450 square foot home will run around $15,000; making it all the more imperative that you understand which window materials and glass coatings will best serve your home before beginning your renovation project.

It does behoove you in the long run to tackle this task. From increased property values to decreased utility bills, virtually all homeowners report being more than satisfied with their window home improvement. Plus, windows in Denver need to be able to withstand the heat of summer as well as the blizzards of winter, all while maintaining optimal energy efficiency.

This Denver Window Replacement Guide will help you navigate the window renovation process by examining how to recognize when a replacement window is necessary, the different materials that are available, and all that is required to perform the job legally.

How to Know When a Window Replacement is Necessary in Your Denver Home

If your windows have begun to show obvious signs of damage, like leaks or rot, then it is definitely time to have them replaced. When these issues are ignored for too long, water damage within the structural walls of your home can occur which will result in far higher repair bills. Also, if your windows no longer open and close easily or at all due to warping, then you have a serious safety hazard on your hand were an emergency to arise. It’s easy to see how such deterioration can happen since Denver can swing from freezing temperatures with 6 inches of snow to the upper 70s in the course of a week.

Energy efficiency is another important quality that virtually all older windows lack, causing inflated utility bills and lower property values.  The National Association of Realtors states that when replaced with energy efficient alternatives, a homeowner can expect to recoup about 80 percent of their renovation expenses in increased property value alone. Add in that a poll done by the Efficient Windows Collaborative reported a 15 percent drop in utility bills when homeowners replaced single-paned glass windows with energy efficient rated substitutes. The savings alone are enough to warrant a renovation budget of this magnitude.

denver co windows

Window Materials Matter in Denver

When considering which type of window you would like in your home, you will need to decide on the window framing material, single versus multiple-paned windows, and any sort of specialized energy efficiency coating.

In terms of window frame materials, your three main options are wood, vinyl, and aluminum. Denver’s climate dictates the best frame materials are those that block out thermal energy like vinyl and wood. Solid wood frames are usually coated in vinyl or fiberglass to increase durability and decrease maintenance, rather than being bare wood like you might be accustomed to; however, this option is usually going to be the most expensive. Vinyl, on the other hand, tends to be the least expensive option with similar low maintenance requirements, though it does almost always have fewer color options than wood.

The more energy efficient your windows are, the more materials and labor were necessary in their manufacturing. Accordingly, as efficiency increases, so does the price. Windows that meet a high enough energy efficiency standard will have a designation from the 2012 International Energy Conservation Code (IECC) and Energy Star. There are three specific qualifiers to look for on a window of this type: U-value, Solar Heat Gain Coefficient (SHGC), and low E. The U-value and SHGC amounts measure the rate at which a window is able to conduct heat and solar radiation flow respectively from the exterior of your home to the interior and vice versa, while the low E represents how effectively the window can reflect heat when coated in a thin metallic covering. Although other alternatives will certainly be an improvement, the absolute best windows for Denver’s climate will be a gas-filled, double- or triple-paned window with triple-glazed glass that has a U-value less than 0.22, a SHGC sub 0.25, and a spectrally selective low E coating.

Permits, Inspections, and Fees in Denver

So long as you are exchanging like size windows so no structural changes to the walls of your home occur, then the City of Denver does not require you to have a building permit.

However, if you are planning on altering any exterior walls, then you can find an incredibly informative manual on the City of Denver’s webpage that will provide you with application instructions, fee estimates, and inspection schedules.