Top-rated eifs installation pros.

Best eifs installation pros near O Fallon, MO

Enter your zip and get matched with up to 5 pros

TRUSTED BY O FALLON, MO HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon970
    Verified eifs installation services reviews

Top-Rated Eifs installation pros in O Fallon - Updated Nov 2026

Avatar for H & F Exteriors, Inc.
H & F Exteriors, Inc.
4.9(
94
)
Vinyl Siding - Install or Completely Replace

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2009

Free estimates

Warranties offered

"I used H&F exteriors to install windows in a 130 year-old historic property. The old windows were crusty and inefficient. The new windows are great, and have cut the heating and cooling bills in half. H&F and their team were terrific to work with, honest and responsive."
H&F Exteriors
IL contact information
STL contact information
Front
Moire Black

+147

Response time4 hrs
Response rate95%
4 neighbors recently requested a quote
Avatar for Foam Co Insulation
Foam Co Insulation
5.0(
29
)
Blown-In Insulation - Install or UpgradeInjection Insulation - Install

Serving O Fallon, MO and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"Foam Co showed up on time, gave us a heads up that they were on the way and completed the work. They were also professional and very informative on the estimation process, provided options and were able to get us scheduled for service in a reasonable amount of time. I would highly recommend."
Crew and Truck setting up Outside House
What a portion of the attic looked like after install.
Spray Foam
Additional Photos
Blown Fiberglass

+15

Response time2 days
Response rate100%
21 neighbors recently requested a quote
Avatar for HomExpert Contractor
HomExpert Contractor
5.0(
61
)
Vinyl Siding - Repair or Partially ReplaceMetal Siding: Repair or Partially Replace

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2008

Free estimates

Emergency services offered

"Amazing! We purchased the wrong item. Not only did he advise what to buy. He found it sent us a link and contacted us immediately when he arrived. Then the work he did when he got here was on point. No surprise costs either. Over communicated. Highly recomend"
siding panel replacement
siding panel replacement
siding panel replacement
siding panel replacement
siding panel replacement

+75

Response time8 hrs
Response rate93%
101 neighbors recently requested a quote
Avatar for Window World
Window World
4.6(
243
)
Liquid (Spray-On) Siding - ApplyLiquid (Spray-On) Siding - Apply - For BusinessMetal Siding: Install or Completely Replace+3 more

Serving O Fallon, MO and surrounding areas

Approved (Corporate)

In business since 2003

Free estimates

Warranties offered

"It was great. They came out, they showed us all different kinds, and we picked out what we wanted. They came back out within two weeks. They make the windows themselves so that you don't have to go to a separate factory. It was a very nice experience. They took out literally a wall in my living room for the bay window. They had them installed. They took out the sliding glass door in my kitchen which had to be special ordered because it was originally a french door that was converted into a sliding door. They did both of them in the same day and quickly. It didn't even take the whole day. They showed up promptly and got to work right away. They were done before 2 in the afternoon. That's not even that generous on the time. They were just bam, bam, bam. I would recommend them to anybody."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time1 day
Response rate100%
Recommended by90%of homeowners
Avatar for Foam Co.
Foam Co.
4.8(
21
)
Blown-In Insulation - Install or Upgrade

Serving O Fallon, MO and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"Very positive experience. The installation crew were knowledgeable, prompt, efficient and courteous. Their equipment was new and state of the art. The installation crew thoroughly cleaned the work area before they left. Robert Kaiser, Construction Materials Performance Manager (retired), LafargeHolcim, Southwest United States: Aggregates, Asphalt & Concrete."
Box Truck
Spray Foam w/ Scaffolding
Techs Spray Foam
Blow In Insulation
Fiberglass Blow

+7

Response time1 day
Response rate93%
Recommended by94%of homeowners
Avatar for Maris Home Improvements, Inc.
Maris Home Improvements, Inc.
4.5(
279
)
Vinyl Siding - Install or Completely Replace

Serving O Fallon, MO and surrounding areas

Approved

Super Service Award Winner

In business since 1997

Free estimates

Warranties offered

"Have used Maris in past and have recommended them to othersâ ¦not the cheapest but always have good products and top shelf installers. This time around we dealt with Kyle verse Ken for the initial bid and order set up. He is a true professional and was quick to respond to our questions and concerns. Cannot say enough about Antonio and Abraham the installers. They were true craftsman and very hard workers. I was blown away that these two got entire fence installed in a day which allowed us to stay on schedule. Which brings me to the only thing that was troubling for usâ ¦somehow we lost several weeks of schedule which cost us a several good weeks in the pool this year. Assume covid was a factor since all supply chains have been negatively affected but some of it was unfortunately due to staff communication and handoffs. Again, cannot not say enough about how Kyle and the new department manager Josh have made a bad thing a positive. Will use Maris in future!"
Maris Windows/Doors
Maris Siding Projects
Maris Fence Projects
Maris Deck Projects
Deck

+122

Response time3 hrs
331 neighbors recently requested a quote
Recommended by94%of homeowners
...
Showing 1-10 of 346
Eifs Installers FAQs, answered by experts

The proper way to install a window well is to measure the window, dig a hole deeper and wider than the window, place a drainage tube and cap, anchor the well to the foundation, caulk the seam, and backfill the hole. The job requires tools such as a hammer drill and auger and some heavy digging. Proper placement and window well installation are critical to preventing water from leaking into the window.

You install a window well 8 to 12 inches deeper than the base of the window sill. After filling the well with drainage rock, the well should sit 3 inches below the bottom of the window. The top of the window well should also be at least 3 inches higher than the surface-grade ground. The window well should be about 6 inches wider than the window opening.

The cost to install a bow window can range from $1,500 to $15,000, with a national average of $3,900. The total price includes materials, which can cost between $1,200 and over $14,000, and labor, which typically adds $300 to $1,900. Several factors influence the final cost, including the window's size and frame material. For example, vinyl frames are the most budget-friendly option, while wood frames are more expensive. Custom features or energy-efficient upgrades will also increase the price. For comparison, a bay window installation typically costs between $1,000 and $7,000.

The primary benefits of an egress window include providing a safe emergency exit, increasing natural light in a space like a basement, and improving ventilation. Additionally, installing an egress window can often increase your property's value.

Most professionals can enlarge a window in five to 10 hours, depending on the window location, the exterior wall material, how easy it is to cut through it, and how much buildback you’ll need after the installation is complete. However, more complex projects can take two to three days from start to finish.

The O Fallon, MO homeowners’ guide to eifs installation services

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