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TRUSTED BY SAINT CHARLES, MO HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon222
    Verified insulation services reviews

Top-Rated Insulation pros in Saint Charles - Updated Nov 2026

Avatar for Aladdin Insulation of Missouri
Aladdin Insulation of Missouri
4.8(
44
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Saint Charles, MO and surrounding areas

Approved (Corporate)

In business since 1928

Free estimates

Warranties offered

"Well, the was too much on the second floor but Aladdin solved that with blown insulation. I look forward to the cool savings in the summer and warm savings in the winter. The house has not added insulation since it’s manufacture in 1989. We have been here for 4 years. Should have done it four years ago. Thank you Aladdin!"
INSULATION
FOAM
BATTS
OUR BUSINESS
OUR BUSINESS!

+1

Response time1 day
Response rate89%
6 neighbors recently requested a quote
Avatar for West County Insulation
West County Insulation
5.0(
6
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or UpgradeInjection Insulation - Install+1 more

Serving Saint Charles, MO and surrounding areas

Approved

Super Service Award Winner

In business since 2021

Free estimates

Small jobs welcome

"Why West County Insulation is the Best Choice for Your Insulation Needs When it comes to insulation, quality and professionalism matter—and that's exactly what I received from West County Insulation. Fast and Knowledgeable Service Brandon, who provided the initial quote, was timely, knowledgeable, and thorough. He explained all my options and made sure I understood everything clearly, giving me confidence in my decision. Professional and Efficient Installation The installation team, led by Andrew and Isaac, was efficient and professional. They used drop cloths to protect my home and completed the job quickly without sacrificing quality. The owner even took the time to check in after hearing about a fall I had during the job—demonstrating the company’s commitment to customer care. Great Quality at a Fair Price The insulation quality is excellent, and my home is already feeling more comfortable. With competitive pricing and outstanding service, West County Insulation offers great value for your investment. If you’re looking for reliable, professional insulation services, I highly recommend West County Insulation."
Response time1 day
Response rate100%
13 neighbors recently requested a quote
Avatar for Carico Drywall & Insulation
Carico Drywall & Insulation
4.7(
25
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Saint Charles, MO and surrounding areas

Approved

In business since 2023

Free estimates

Emergency services offered

"Kyle and his team were truly exceptional!! An honest, hardworking and amazing experience. He did our insulation, drywall and basement shelving. Every single piece of work was at a very high level. My husband and I will Only use Kyle for any future projects!"
Staircase
Master Bedroom
Living Room
Living Room
Church

+21

Response time2 days
Response rate85%
21 neighbors recently requested a quote
Avatar for Hawx Insulation-St. Louis
Hawx Insulation-St. Louis
4.1(
361
)
Blown-In Insulation - Install or Upgrade

Serving Saint Charles, MO and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

At Hawx Pest Control, our company is based on the belief that our customers' needs are of the utmost importance. Our team is committed to meeting those needs. Hawx Premium Pest Control will treat your pests, mosquitos, and more- then keep them away for good. If pests come back between treatments so will we, at no additional cost to you. We welcome the opportunity to earn your trust and deliver you the best service. No job is too big or too small for our experienced team. Call today for a quote. \n

Recommended by75%of homeowners
Avatar for Good Attic, LLC
Good Attic, LLC
5.0(
5
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Saint Charles, 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%
84 neighbors recently requested a quote
Avatar for The Attic Yettis
The Attic Yettis
5.0(
7
)
Blown-In Insulation - Install or UpgradeBatt, Rolled or Reflective Insulation - Install or Upgrade

Serving Saint Charles, MO and surrounding areas

Approved

Free estimates

Credit card accepted

Offers commercial services

"I hired the attic yetis to replace insulation in my attic and I was more than happy with the outcome. The service was quick and efficient and just a few days in I am already noticing a major difference. If you need any attic insulation or pest prevention I highly recommend the attic yetis"
Full attic remediation
Full attic remediation
Full attic remediation
Full attic remediation
Full attic remediation

+37

30 neighbors recently requested a quote
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Showing 1-10 of 82
Insulation FAQs, answered by experts

Insulation in Saint Charles benefits from annual inspections, especially after winter or heavy rain. Look for signs of moisture, pest activity, or insulation settling, and check for gaps around pipes and electrical outlets. Monitoring your energy bills for unexpected spikes can also help detect hidden issues. Scheduling periodic energy audits and using thermal imaging can catch small problems early, keeping your home efficient and comfortable.

Helpful?

For a smooth insulation project in Saint Charles, start with a professional energy audit to identify problem areas. Obtain several quotes from local insulation contractors, and check if you need permits or HOA approval. Plan installation for milder weather in spring or fall, and clear access to attics or crawl spaces. Coordinate with HVAC specialists if ductwork is involved, and review available rebates or tax incentives before starting.

Helpful?

Before starting insulation in Saint Charles, confirm if you need permits or HOA approval. Schedule a home inspection to check for moisture, pests, or structural concerns, and arrange for asbestos testing if your home is older. Clear pathways to attics or crawl spaces, protect valuables, and plan for temporary disruptions. Review your contractor’s schedule, warranty terms, and monitor the weather to help your project stay on track.

Helpful?

In Saint Charles, insulation projects should be prioritized if you notice sharp increases in energy bills during hot summers or cold winters, rooms that feel drafty or much colder than others, or visible issues like mold or ice dams. If problems are minor—such as slight drafts or slow energy bill increases—consider scheduling insulation within the next year, especially if you’re planning other home improvements soon.

Helpful?

In Saint Charles, it’s time to schedule insulation work if your home feels drafty, your HVAC system runs frequently, or you notice uneven temperatures between rooms. Other signs include insulation that’s over 15 years old, visible settling or moisture stains, or evidence of pests. Consider upgrading insulation during major renovations, after severe weather, or when replacing your HVAC system for improved comfort and efficiency.

Helpful?

The Saint Charles, MO homeowners’ guide to insulation services

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