Top-rated window and door contractors.

Best window and door contractors near O Fallon, MO

Enter your zip and get matched with up to 5 pros

Need a pro for your window and door contracting project in O Fallon, MO?

Select your specific project to find the pro for you.

TRUSTED BY O FALLON, MO HOMEOWNERS

  • Average homeowner rating star icon4.5
    Average homeowner rating
  • Verified reviews icon1.4k+
    Verified window and door contracting services reviews

Top-Rated Window and door contractors in O Fallon - Updated Nov 2026

Avatar for J Boris Home Exteriors
J Boris Home Exteriors
4.9(
31
)
Window Glass - Install or ReplaceSliding Door or Tracks - Repair

Serving O Fallon, MO and surrounding areas

Approved

In business since 1990

Free estimates

Emergency services offered

"John did an absolutely fantastic job replacing two French patio doors on our home. He was very attention to detail and the finishing of them was far and away better than we had originally. He was very efficient yet took the time to make sure every aspect of his install was perfect! Can't say enough great things about the job done. Would recommend without hesitation!"
3 double hung windows installed
Double Hung Windows
3 Old Windows
3 New Windows
Old Picture Window and twin Double Hungs

+7

Response time4 hrs
Response rate91%
23 neighbors recently requested a quote
Avatar for All-Type Window & Door, LLC
All-Type Window & Door, LLC
4.6(
25
)
New Windows - 6 +New Windows - 3-5Doors (Exterior) - Install or Replace+4 more

Serving O Fallon, MO and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Very professional yet down to earth. Best price I found with great quality work. Answered every question I had and gave me a great sense of comfort throughout the whole process. Very time efficient. Replaced 14 windows, added a bay window, replaced 2 sliding glass doors, and replaced an existing garage door with a 4-panel sliding glass door. Only took 2 and a half days!"
Stemson
Legacy 2lt sliding window
Exterior view legacy sliding window
Bathroom windows
New windows and trim

+12

Response time1 day
6 neighbors recently requested a quote
Recommended by95%of homeowners
Tandem Trades LLC
4.9(
67
)
Doors - RepairDoors - Repair - For BusinessHardware, Latches & Tracks (Door) - Repair or Replace+5 more

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 1998

Free estimates

Warranties offered

"Tim did a good job. The garage door frame replacement and siding replacement both look good. He also reconnected the drooping sides of the porch roof where cracking had occurred, taped and plastered over that to create a more firm connection."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+19

Response time2 days
Response rate100%
2 neighbors recently requested a quote
Avatar for STL Design and Build, LLC
STL Design and Build, LLC
4.6(
169
)
Doors (Exterior) - Install or Replace

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 1985

Free estimates

Warranties offered

"STL Design & Build constructed a gorgeous deck off our kitchen and replaced windows and installed door to deck. The workmanship was excellent - well established and talented crews, built on time, and right on budget. Very impressed with the workmanship and also the quality of the materials (from wood framing, decking to windows and door. Very enjoyable experience. Great, great company. Reliable, honest, and professional."
Two-Toned - White cabinets and a blue island
Elegant Kitchen
Before - limited cabinets
Before - view 2
AFTER - much better use of space

+130

Response time10 hrs
44 neighbors recently requested a quote
Recommended by93%of homeowners
Avatar for H & F Exteriors, Inc.
H & F Exteriors, Inc.
4.9(
94
)
New Windows - 3-5New Windows - 6 +New Windows - Multiple

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Warranties offered

"H&F Exteriors was awarded a contract in July 2023 to replace porches of my daughter's house (front - partial and back - complete) in St Louis. When initially meeting with H&F's Project Manager, Phillip Raphael, I was impressed with his understanding of what we wanted done. It was clearly reflected in the scope of their bid (compared to other contractors) as well as the schematics which used existing pictures of the porch areas with overlays of planned construction. Less than a week after contract award, he set up a group text with himself, me, my daughter and his Production Team. I have dealt with many contractors - both personally and professionally - and must say the communication throughout the entire project was as good as anything I have experienced. Within a month, the Production Team assumed the lead and provided regular updates on material delivery and construction timing. Phillip continued to touch base periodically as well to ensure things were moving forward satisfactorily. Since I live out-of-town from where the work was being done, he and his Team coordinated everything with my daughter and kept me in the loop on progress. During construction, there were a couple issues my daughter brought to their attention and they were quickly addressed to her satisfaction. At the end of the job, a punch list of a few remaining items was completed, all extra materials were removed and the jobsite was cleaned up without any follow-up needed by my daughter. Needless to say, we were extremely pleased with H&F and will definitely be including them on bids for any future exterior improvements."
H&F Exteriors
IL contact information
STL contact information
Front
Moire Black

+147

Response time4 hrs
Response rate95%
1 neighbors recently requested a quote
Avatar for County Remodeling Window & Door Replacement
County Remodeling Window & Door Replacement
4.5(
33
)
Doors (Exterior) - Install or ReplaceNew Windows - 2New Windows - 3-5

Serving O Fallon, MO and surrounding areas

Approved

In business since 1978

Free estimates

Customers say: Super punctual

"The owner was quite knowledgeable and gave a very reasonable estimate for the installation of eight windows. The work crew were professional, friendly and did an excellent job, including cleaning up when finished. I highly recommend them!"
New home
New home
New home
New home
New home

+18

1 neighbors recently requested a quote
Recommended by90%of homeowners
...
Showing 1-10 of 435
Window Door Contractors FAQs, answered by experts

In O'Fallon, you can address small window screen repair issues by using a screen patch kit for tiny tears or applying a dab of clear adhesive for pinholes. When tightening loose screens, gently roll the spline to avoid stretching. Always wear gloves and safety glasses, especially when trimming mesh. Choose a calm, dry day for repairs, and avoid working near electrical lines or during high humidity to prevent accidents.

Helpful?

For screen repair in O'Fallon, opt for fiberglass mesh for its flexibility and resistance to local weather changes. Pet-resistant mesh is ideal for homes with animals, while solar screens help reduce heat on west-facing windows. Aluminum frames offer durability against MO’s temperature swings. Use stainless steel fasteners to prevent rust, and select a UV-resistant spline to ensure your repairs last through the region’s sunny and humid conditions.

Helpful?

In O'Fallon, common mistakes include using indoor mesh for outdoor window screen repair, cutting mesh too short, or skipping a thorough cleaning before installation. Homeowners sometimes overlook the importance of matching mesh size to local insect types. Attempting repairs in high humidity can cause materials to stretch or warp. Not checking for local permit requirements on large porch enclosures is another oversight that can delay your project.

Helpful?

In O'Fallon, screen repairs can impact your home’s airflow, energy efficiency, and moisture control. If you notice repeated screen damage, window condensation, or difficulty opening windows, it may indicate issues like foundation settling or excessive humidity. After repairs, test window sensors if you have a security system. If multiple screens show problems, consult a local screen repair professional to check for underlying home issues.

Helpful?

In O'Fallon, screen repair can influence your home’s airflow, especially if you rely on natural ventilation during humid summers. Replacing screens may require adjusting window or door hardware, which could affect how weatherstripping seals out moisture. If you have window alarms or sensors, double-check that repairs don’t disrupt their alignment. For screened-in porches, updated screens can also improve comfort by reducing pollen and debris entry.

Helpful?

The O Fallon, MO 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.