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Find Spray foam insulation pros in Silex

Avatar for Foam Co Insulation
Foam Co Insulation
5.0(
29
)
Insulation - Install or Upgrade

Serving Silex, MO and surrounding areas

Approved

In business since 2022

Free estimates

Emergency services offered

"FoamCo recently insulated our basement walls. Before, we couldn’t use the basement in the winter time. We noticed an immediate difference once the insulation went in, and now our basement is our favorite cozy hangout spot in the house. They were great at explaining exactly what kind of insulation I needed and were actually the best priced bid we got."
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%
23 neighbors recently requested a quote
Avatar for iFOAM Insulation of O'Fallon
iFOAM Insulation of O'Fallon
4.9(
8
)
Insulation - Install or Upgrade

Serving Silex, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2023

Free estimates

Emergency services offered

"Excellent customer service thru the whole process and job was done 100% to our satisfaction. I would recommend any one to I Foam company for their insulation projects, thanks to the manager/owner and staff of I Foam.b"
Spray Foam Insulation
Blown In Fiberglass Insulation
Bryan and Bret Brooks spraying a roof deck with closed cell spray foam.
The iFOAM of O'Fallon family making this home efficient.
Spray Foam Insulation
Spray Foam Insulation

+11

Response time6 hrs
Response rate100%
12 neighbors recently requested a quote
Avatar for Foam Co.
Foam Co.
4.8(
21
)

Serving Silex, MO and surrounding areas

Approved

In business since 2015

Free estimates

Emergency services offered

"One of the best experiences we've had with work done in our home. Zac and the team from Foam Co went above and beyond for our project - removing the old insulation from our attic and installing new insulation. They arrived exactly at the agreed on time, took care to protect our home from any mess or damage, and completed the entire project in just a few short hours. All of the team members were polite and kind. They went above and beyond to clean up at the end of the project and to make sure we were satisfied with their work. We will absolutely hire them again in the future!"
Box Truck
Spray Foam w/ Scaffolding
Techs Spray Foam
Blow In Insulation
Fiberglass Blow

+7

Response time1 day
Response rate93%
6 neighbors recently requested a quote
Avatar for Better Home Insulation
Better Home Insulation
4.5(
292
)

Serving Silex, MO and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Look no further if you need insulation. Very competitively priced ,showed up on time. Did a terrific job insulating my attic. Thank you Liron and Better Home Insulation!"
1
2
3
4
5

+25

Response time1 day
Response rate98%
51 neighbors recently requested a quote
Avatar for Good Attic, LLC
Good Attic, LLC
5.0(
5
)

Serving Silex, MO and surrounding areas

Approved

In business since 2021

Free estimates

Warranties offered

Good Attic of Saint Louis removes old, dirty or pest-contaminated attic insulation and replaces it with fresh blown-in insulation to R-49 or R-60. Jobs can include air sealing, sanitizing after rodents, squirrels or raccoons, and attic ventilation fixes. We also top off attics that are simply under-insulated. We serve St. Louis and St. Charles counties, including St. Charles, St. Peters, O'Fallon, Chesterfield, Ballwin and Kirkwood. Free attic inspection with photos and a written scope, and same-week appointments.

Response time2 days
Response rate100%
103 neighbors recently requested a quote
Avatar for Middle Water, LLC
Middle Water, LLC
5.0(
3
)

Serving Silex, MO and surrounding areas

In business since 2025

Free estimates

Credit card accepted

"The professionals at Middle Water, LLC did a great job. From the first interaction until project completion everything was top notch. Questions were answered promptly, the work was completed timely, and the customer service exceeded my expectations. I highly recommend using Middle Water, LLC."
My jobs
My jobs
My jobs
My jobs
My jobs

+4

Response time9 hrs
Avatar for Siding Repair Systems
Siding Repair Systems
4.5(
128
)
Insulation - Install or Upgrade

Serving Silex, MO and surrounding areas

In business since 2009

Free estimates

Credit card accepted

"The estimate and the people doing it was good. They knew what they were talking about and took their time. They said the work would start early February before they can start, which is fine its no rush. But we would appreciate if they could just give us a date. My wife has chased them down and they haven't gotten back to her. Just keep us in the loop, we shouldn't have to chase them down. We understand if the weather delayed or a set back. Its not hard to make a call or send an email."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+6

Recommended by89%of homeowners
Avatar for Local Air Duct Pros
Local Air Duct Pros
4.5(
15
)

Serving Silex, MO and surrounding areas

In business since 2025

Free estimates

Credit card accepted

"Local Air Duct Pros did an outstanding job! The team was professional, punctual, and very thorough. I noticed a huge difference in air quality right away. Highly recommended!"
Response time7 hrs
Response rate99%
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FAQs for spray foam insulation projects in Silex, MO

Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.

R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.

Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.

You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.

Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.