Top-rated insulation pros.

Get matched with top insulation pros in Dow, IL

Enter your zip and get matched with up to 5 pros

Need a pro for your insulation service project in Dow, IL?

Select your specific project to find the pro for you.

TRUSTED BY DOW, IL HOMEOWNERS

  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon49
    Verified insulation services reviews

Find Insulation pros in Dow

Hawx Insulation-St. Louis
4.1(
361
)

Serving Dow, IL 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
)

Serving Dow, IL and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

Good Attic is a trusted attic insulation and home comfort company serving homeowners throughout St. Charles and the greater St. Louis area. We specialize in blown-in insulation upgrades, air sealing, attic cleanouts, and ventilation improvements that solve hot/cold rooms, drafts, high energy bills, and poor airflow. Our team provides honest pricing, same-week appointments, and detailed before-and-after photos so you always know exactly what you’re getting. If you want a cleaner, more comfortable, and more energy-efficient home, Good Attic delivers results you can feel immediately.

Response time2 days
127 neighbors recently requested a quote
Avatar for Local Air Duct Pros
Local Air Duct Pros
4.5(
15
)

Serving Dow, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"Thank you for your trust! At Local Air Duct Pros we specialize in professional air duct cleaning, dryer vent cleaning, chimney sweep, and attic insulation. Our licensed and insured team is committed to providing top-quality service at fair prices. We appreciate your support and look forward to serving you again!"
Response time7 hrs
Response rate97%
27 neighbors recently requested a quote
Avatar for Crawlspace / Basement Waterproofing Solution
Crawlspace / Basement Waterproofing Solution
4.4(
256
)

Serving Dow, IL and surrounding areas

In business since 1998

Free estimates

Credit card accepted

"Contacted a few different companies and had two come out to inspect a large crack in the foundation. First company came out and indicated that the foundation had failed and needed piers put in to stablize the foundation. Crawlspace Solutions came in and indicated that they felt there was nothing failing with the foundation and that they could inject the cracks and warranty the work regardless of if there was a larger issue that required piers. Scott was the person that estimated and completed the work. He was extremely responsive and did a very good job of injecting the cracks. When Scott came to quote the work he also offered a price to apply spray foam to the walls and the sill to replace the fiberglass insulation that the previous owner of the house had on the crawlspace walls. Price included in review was to inject 2 cracks and apply the spray foam. Really glad we had the foam insulation put in. Way cleaner, durable and sealed up some areas that the other insulation could not take care of. Scott also spent extra time explaining some other areas to keep an eye out on to help ensure the foundation area is well managed from any further potential issues like down spout discharge locations, hose connections and just general drainage of the property. One of the concerns we had was if we spend all this money on the injection and the foundation ends up needing to have piers put in, how would that impact the warranty. Scott assured us that if any additional settling occurs and the repair fails, they would come back and repair the injected cracks after the foundation was stable."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+13

Recommended by90%of homeowners
Avatar for American Home Shield – Home Warranty
American Home Shield – Home Warranty
3.5(
5,688
)

Serving Dow, IL and surrounding areas

In business since 1971

Credit card accepted

"Roberto was the technician and he was very professional, polite, and personable. He inspected the rest of our system and told us things that needed to be changed or repaired. He showed me pictures of everything. Everything he told me about was accurate. He quoted me a price for R38 insulation , Some of our ducts were plastic and he recommended them to be changed. I agreed completely and didn't know they were plastic. I would have had them done the work but I had no price comparisons to make and besides I didn't have the money right then. So he just finished the vent cleaning and left his card. He did a great job on the vent cleaning and was happy with the work."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Additional Photos

+2

Recommended by65%of homeowners
Avatar for EcoLogic Insulation Contractors
EcoLogic Insulation Contractors
5.0(
3
)

Serving Dow, IL and surrounding areas

In business since 2018

Free estimates

Ecologic Insulation Contractors is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.\n

Response time2 days
Recommended by100%of homeowners
Avatar for Good Attic
Good Attic
4.5(
1
)

Serving Dow, IL and surrounding areas

In business since 2021

Free estimates

Credit card accepted

"Patrick contacted me within 30 minutes of posting I wanted estimates to install blown in insulation in my attic. He was able to meet my timeline with me leaving town. The people who installed the insulation were professional and cleaned up after they completed the job. Thank you Patrick and I will call again if I need anything!"
Response time1 day
Recommended by100%of homeowners
Avatar for Midtown Home Improvements
Midtown Home Improvements
3.5(
603
)

Serving Dow, IL and surrounding areas

In business since 1992

Free estimates

Credit card accepted

"I've had a couple of projects done with these guys. Both a heavy duty exterior door on a multi-family rental property and a roof replacement. They won't be the cheapest quote you get (and might even be the most expensive), but you do get what you pay for. They were very professional throughout the sales cycle, stayed in frequent contact regarding timelines and delivered very high quality work."
Bathroom
Kitchen
Deck
Beautiful siding, roof, gutters, soffit and fascia
Double Hung, and Casement Windows

+89

Recommended by87%of homeowners
Showing 1-10 of 17
Insulation questions, answered by experts

A plastic vapor barrier should completely cover your basement to prevent water from penetrating through the walls. This typically goes before installing insulation to prevent moisture from building up and becoming trapped on the inside of your insulation, where it can collect and lead to mold damage. Installing insulation after the vapor barrier allows for any moisture to exit the walls for better ventilation.

If you feel your energy bills are too high or your HVAC system is working harder than necessary to maintain the correct temperature in your home, you may have an under-insulated home. If you’re unsure, consider having your system’s efficiency assessed by a local independent energy auditor.

Yes, spray foam insulation can be applied to your ductwork and effectively insulate your ducts. Blanket insulation is the easiest insulation product to DIY since it is easy to wrap around ducts. However, spray foam insulation can also benefit your HVAC system if applied to air ducts.

The cost of installing spray foam insulation is $2,760 on average, but this cost can be as low as $650 or as high as $7,700. The main cost factor is the size of the insulated area and the type of spray foam insulation. 

Polyurethane spray foam costs between $0.44 and $1.50 per board foot, where a board foot is equal to the volume of a one-foot length of a board. More expensive options, like soybean or vegetable oil spray foam, range from $1.50 to $3.00 per board foot.

Glass fibers are often used in HEPA filters because of their high efficiency, durability, and thermal stability. Some HEPA filters are made with synthetic fibers, but they may not be as effective. While there is some fiberglass shedding, as long as the HEPA filter is intact and not cut open, the amount of fiberglass released by a HEPA filter is well below the breathable particulate matter.

The Dow, IL homeowners’ guide to insulation services

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