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Find Doors (exterior) installers and replacers in O Fallon

Avatar for All-Type Window & Door, LLC
All-Type Window & Door, LLC
4.7(
24
)

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
8 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Collective Enterprise
Collective Enterprise
5.0(
14
)

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Emergency services offered

"Sam did a beautiful job on installing LPV flooring throughout our whole house. As well as cabinet install, bathroom vanities, toilet. We have hired him for several jobs. Always shows up on time, does great work. Very professional and kind. "
Response time2 days
Response rate92%
1 neighbors recently requested a quote
Avatar for STL Design and Build, LLC
STL Design and Build, LLC
4.7(
119
)

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

+129

Response time10 hrs
68 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for County Remodeling Window & Door Replacement
County Remodeling Window & Door Replacement
4.6(
30
)

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

3 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for A Pane In The Glass, LLC
A Pane In The Glass, LLC
4.5(
52
)

Serving O Fallon, MO and surrounding areas

Approved

In business since 2003

Free estimates

Credit card accepted

"I bought a home and the seller used Craig at Pane in the Glass to repair the broken thermal seal on a rear door. I was so pleased with the work that I used him to repair three windows in the house I sold as part of the remedy for my sold home inspection. I would recommend this company and Craig without reservation"
Response time1 day
Recommended by88%of homeowners
Avatar for VMK Remodeling
VMK Remodeling
4.8(
16
)

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Very pleased with the quality of the kitchen cabinet installation. Company we contacted with for counter tops also commented on the quality of their work. Customer service was excellent. They arrived as scheduled and quickly responded to messages. Work was done well and on time. "
Response time2 days
Response rate90%
53 neighbors recently requested a quote
Avatar for FixPro
FixPro
5.0(
5
)

Serving O Fallon, MO and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

FixPro is a locally owned and operated handyman service proudly serving St. Louis, St. Charles, Lincoln, Warren, Franklin, and Jefferson Counties. We specialize in high-quality home repairs, carpentry, drywall, painting, flooring, deck repair, and general maintenance—handling everything from small fixes to larger improvement projects with precision and professionalism.\n\nWith years of hands-on experience across construction, maintenance, and service industries, I built FixPro to deliver what most contractors don’t: clear communication, reliable scheduling, and work done right the first time. We show up when we say we will, diagnose issues properly, and provide straightforward solutions without cutting corners.\n\nOur approach is simple—treat every home like it’s our own. We focus on clean workmanship, long-term durability, and customer satisfaction. If you want it done right the first time, FixPro is ready.\n\nNeed Something Fixed? Hire a Pro.

1 neighbors recently requested a quote
Avatar for Dalco Home Remodeling
Dalco Home Remodeling
5.0(
5
)

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 1973

Free estimates

Small jobs welcome

"I recently had my bathroom remodeled by Dalco Home Remodeling, and I couldn’t be happier with the results! From start to finish, they did an outstanding job. The team was professional, punctual, and truly listened to what I wanted. They transformed my outdated bathroom into a modern, functional space that feels like a spa. The quality of their workmanship is top-notch—everything from the tiling to the fixtures was installed with precision and care. They even finished the project on time and cleaned up thoroughly afterward, leaving no mess behind. Dalco exceeded my expectations, and I’d highly recommend them to anyone looking for a reliable, skilled remodeling team!"
Shower remodel
Response time3 days
Response rate91%
29 neighbors recently requested a quote
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FAQs for doors (exterior) installation and replacement projects in O Fallon, MO

Modern steel doors incorporate protective coatings and finishes that significantly reduce rust potential. These treatments create effective moisture barriers when properly maintained. Small scratches or damage should be promptly addressed with touch-up paint to prevent moisture from reaching the underlying metal. 

Doors in coastal or high-humidity environments benefit from additional protective measures and more frequent inspection. With proper care, most steel doors resist corrosion for decades.

Steel doors provide superior resistance against forced entry attempts compared to fiberglass alternatives. The inherent strength of steel creates a formidable barrier that resists impacts and tampering more effectively than composite materials. 

While high-quality fiberglass doors offer reasonable security, steel provides an exceptional strength-to-weight ratio and structural integrity. For maximum protection, look for steel doors with reinforced strike plates and multi-point locking systems.

Most manufacturers provide warranties covering manufacturing defects for periods ranging from five to 15 years, depending on the product line and quality tier. Hardware components often carry separate warranty coverage, often for shorter durations. Installation services may include workmanship guarantees covering proper fitting and operation. Always review warranty documentation carefully to understand coverage limitations and maintenance requirements that might affect warranty validity.

Provided your existing wood frame remains structurally sound and properly aligned, professional installers can often adapt a steel door to fit. The process requires careful measurement and potentially minor modifications to accommodate the new door's specifications. The frame must provide adequate support for the heavier steel door construction. A qualified installer will evaluate your current frame's condition and recommend appropriate adjustments to ensure proper function and security.

The O Fallon, MO homeowners’ guide to doors (exterior) installations and replacements

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