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TRUSTED BY STERLING, CO HOMEOWNERS

  • Average homeowner rating star icon4.4
    Average homeowner rating
  • Verified reviews icon11
    Verified window and door contracting services reviews

Top-Rated Window and door contractors in Sterling - Updated Nov 2026

Champion Windows of Ft.Collins
4.2(
130
)
Sliding Door - InstallNew Windows - 3-5New Windows - 6 ++1 more

Serving Sterling, CO and surrounding areas

Approved (Corporate)

In business since 2000

Free estimates

Credit card accepted

"Ryan was knowledgeable, professional and detail oriented throughout the process. This giving me confidence in the quality of products being offered. I would recommend Champion for your window and door replacement needs."
19 neighbors recently requested a quote
Recommended by95%of homeowners
Flawless Results, LLC
4.2(
31
)
Doors (Exterior) - Install or ReplaceNew Windows - 2New Windows - 3-5+1 more

Serving Sterling, CO and surrounding areas

Approved

In business since 1994

Free estimates

Credit card accepted

"I want to thank Flawless Results for my wonderful windows there everything I dreamed of. They are professional and answered all my questions from start to finish, Ashley referred me to the company and Bob Murphy owner helped me purchase my Andersen windows."
Recommended by81%of homeowners
Avatar for DaBella - Cheyenne (Windows)
DaBella - Cheyenne (Windows)
3.8(
1,141
)
New Windows - 6 +New Windows - 3-5

Serving Sterling, CO and surrounding areas

Approved (Corporate)

In business since 2011

Free estimates

Warranties offered

"The Debella team did an amazing job. Dustin came out after the windows were installed and made sure we were happy. Dustin made us feel like we are family. I recommend Dustin and his team."
Baths
Baths
Baths
windows
windows

+14

3 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Champion Windows and Home Exteriors of Ft. Collins
Champion Windows and Home Exteriors of Ft. Collins
4.6(
227
)
New Window - SingleNew Window - Single - For BusinessNew Windows - 2+9 more

Serving Sterling, CO and surrounding areas

In business since 1953

Free estimates

Warranties offered

"Excellent products (Patio Door & Replacement Windows) proved to be what is advertised. The biggest asset is the fact that Champion uses company employees to do the installs. Richard and Mike are fast, courteous, pleasant, professional and extremely proficient in their craftsmanship. We are really pleased with the whole experience with Champion Windows products and their employees. Greg & Sharon"
Windows
Sunroom
Siding
Additional Photos
Additional Photos

+16

Recommended by88%of homeowners
Parks DF & H Installation
4.6(
10
)
Door or Window Screens - Install or RepairDoors (Exterior) - Install or ReplaceDoors (Exterior) - Install or Replace - For Business+5 more

Serving Sterling, CO and surrounding areas

In business since 2024

Free estimates

Credit card accepted

"Excellent customer service! I needed my sliding glass door replaced asap. Stewart came and measured everything and was up front and honest about the price of the door and installation. Would definitely recommend"
Response time1 day
Recommended by60%of homeowners
Avatar for North Alabama Technical Services
North Alabama Technical Services
4.9(
124
)
Door or Window Screens - Install or Repair

Serving Sterling, CO and surrounding areas

In business since 2010

Emergency services offered

Credit card accepted

"We own a home-based business which relies heavily on our computers operating efficiently. We have had a service contract with another computer repair business for several years. Recently when we were having problems with our computers, we tried contacting our service contractor multiple times. He never responded. Feeling frustrated, I contacted James at North Alabama Technical Services and explained our situation. He instantly came to our rescue. He "cleaned-up" our computers and took care of all the problems we were experiencing. He went above and beyond to help us in our dire time of need. We would strongly recommend James and his company for computer service needs. We have now retained him on a service contract and are looking forward to working with him in the future."
2014 Super Service Award Winner!
Additional Photos
Recommended by97%of homeowners
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Window Door Contractors FAQs, answered by experts

Window seals don’t last forever, so they’ll inevitably fail for one reason or another. One of the most common reasons is the expansion and contraction of the glass. When the glass gets warm from sunlight, it expands and adds pressure to the seal; at night, as the glass cools, it contracts. This process, day in and day out, can eventually cause the seal to fail. Other common sources of failure include the house settling over time, chemicals that damage the seal when repainting windows, and incorrect window installation.

Whether you should repair or replace a screen door depends on the type and extent of the damage. It is easy and economical to repair a small tear in the mesh using a widely available DIY patch kit. However, if there are large tears, multiple damaged spots, or if the screen is made of a specialized material, replacing the entire screen mesh might be a better long-term investment for a tidier appearance. You should also consider the condition of the frame; if the frame itself is damaged, it's likely time to replace the entire door. Other factors to weigh include whether you want a new style or need a more durable door.

Ensures proper fit and function, maximizing insect protection and airflow.

Yes, you can fix windows without replacing them. However, this will depend on the severity of the issue and what your needs are. Minor water damage, broken glass, damaged casing, and worn caulking are usually easy repairs. But if there is excessive damage, the windows are constantly foggy, or the windows are very old, it’s best to consider replacing them. Replacement windows cost between $575 and $1,475 per window, or an average of $850 per window. 

To ensure the longevity and smooth functioning of new windows, regular maintenance is essential. This includes cleaning the glass and frames, inspecting seals for leaks or damage, and reapplying caulking as needed. It is also important to lubricate all moving parts and operating mechanisms to ensure they continue to operate smoothly.

The Sterling, CO homeowners’ guide to window and door contracting services

From average costs to expert advice, get all the answers you need to get your job done.