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Spray Foam Insulation in Mount Prospect, IL

Find top-rated spray foam contractors and save up to 35% on energy bills

Compare 2 verified spray foam insulation contractors serving Mount Prospect, Illinois, backed by 862 customer reviews averaging 4.7★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Mount Prospect contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 35% — get free quotes and read verified reviews below.

💰 Estimated Energy Savings in Mount Prospect

35%
Average Energy Savings
Typical range: 30% - 40%
$1,596
Estimated Annual Savings
Based on $380/month average energy cost
4 years
Average Payback Period
Return on investment timeline

Note: Actual savings vary based on home size, current insulation, energy rates, and climate conditions. These estimates are based on Department of Energy data for Cold.

Verified Contractors in Mount Prospect

Green Attic Insulation

📞 Call Now🌐 Visit Website

Direct: (847) 929-9492

4.8⭐
853 Google reviews

Recent Reviews:

junhyx fetero★★★★★a week ago

Great experience from the start. Denis gave a thorough run through and quote of what was needed for our attic. Communication was fast and clear. We were able to set an appointment for the work after a couple days of the estimate. Romeo, Charlie, and Rigoberto got here on time for the install and they were very efficient with their time. They started with a blower test, laid down protection for the floors and taped off walls to protect from the tubes and they cleaned up right after very well.

Dan India★★★★★a month ago

Romual and Jose it’s -10 and they were here on time. Hooked up power. Protected and covered all carpeting, walls doorways etc told me it’s going to be dusty with plaster walls and 6 hours later they are Cleaned up and gone. Total 420 sq ft blown in insulation into 4” dead air space in this 1910 house. Green attic has done my attic and now perimeter walls Highly recommend this team.

Jessica Blockey★★★★★in the last week

We had an outstanding experience with Green Attic. They JUST completed mold remediation, corrected our venting issues, and installed new insulation and every part of the process was handled professionally and thoroughly. The crew was friendly, efficient, and clearly took pride in their work. Beyond the quality of the work, we felt very comfortable having them in our home. They were respectful and courteous. What impressed us most was their attention to the cleanup. After such an extensive project, they left our home spotless. You would never know they had just completed major attic work. Most companies are not that thorough. We truly appreciate their workmanship, professionalism, and care for our home. Highly recommend Green Attic!

Wilkin Insulation Co.

📞 Call Now🌐 Visit Website

Direct: (847) 439-9050

4.6⭐
9 Google reviews

Recent Reviews:

Neal Katz★★★★★6 years ago

I just had to post this review now that it is -15 deg. outside. What a difference it made adding insulation. It was the best improvement to my 40year old home. Wilkins did a very professional job. The employees explained the process and made sure the attic was well vented. Thank you!

Thomas Grewette★★★★★3 years ago

Michael Wilkin was very professional and fireproofed my my business. I own a welding company and was very nervous about my shop. He took care of my anxiety.

Casey Bierdz★★★★★4 years ago

Very friendly office

Frequently Asked Questions — Spray Foam Insulation in Mount Prospect

These are the questions Mount Prospect homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 35% typical energy savings. Compare the 2 verified Mount Prospect contractors above for exact quotes.

How much can spray foam insulation save on heating and cooling bills in Mount Prospect?▼
Homeowners in mixed climates like Mount Prospect, IL typically see 20–30% reductions in total energy costs after spray foam installation. The savings come from both reduced heating in winter and reduced cooling in summer. The exact savings depend on your home's current insulation, size, and local energy rates, but most homeowners recoup the investment within 3–6 years.
Is spray foam better than fiberglass insulation for homes in Mount Prospect?▼
For most homes in Mount Prospect, IL, spray foam outperforms fiberglass significantly. Fiberglass batts insulate but do not air seal — meaning conditioned air still escapes through gaps. Spray foam both insulates and creates an airtight seal, addressing the root cause of energy loss. While spray foam costs more upfront, the performance difference in mixed climates makes it the better long-term investment for most homeowners.
Is spray foam insulation worth the cost?▼
For most homeowners, yes. Spray foam creates an air-tight seal that traditional insulation cannot match, reducing energy bills by 15–35% annually. It also adds structural rigidity, acts as a moisture and vapor barrier, reduces outside noise, and can increase home resale value. The higher upfront cost compared to fiberglass is typically recovered within 3–7 years. One important note: because spray foam creates a very tight building envelope, proper mechanical ventilation is important to maintain healthy indoor air quality and prevent interior moisture buildup. This is typically handled by an Energy Recovery Ventilator (ERV) — a system that brings fresh outside air in while pushing stale air out, recovering the energy from the outgoing air so you don't waste what you paid to heat or cool — or a Heat Recovery Ventilator (HRV), which works similarly but is optimized for cold climates. A qualified contractor will assess whether your home needs ventilation upgrades as part of the installation.
How much does spray foam insulation cost in Mount Prospect, IL?▼
In Mount Prospect, IL and the surrounding area, spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your home's specifics. Open-cell foam runs $0.44–$0.65 per board foot, while closed-cell foam costs $1.00–$2.00 per board foot. A typical 2,000 sq ft home attic in Mount Prospect costs $2,000–$6,000. Most Mount Prospect homeowners recoup this investment within 3–7 years through energy savings of 15–35% annually.
What is the difference between open-cell and closed-cell spray foam?▼
Open-cell spray foam is softer, less dense, and less expensive. It expands significantly and is ideal for interior walls, attics, and soundproofing. Closed-cell spray foam is denser, stronger, and provides a moisture barrier — making it better for exterior applications, crawl spaces, and areas prone to flooding or humidity. Closed-cell also has a higher R-value per inch (R-6 to R-7 vs R-3.5 to R-4 for open-cell). One key difference: open-cell foam allows some vapor movement, while closed-cell acts as a vapor barrier — an important consideration for your home's ventilation needs.
How long does spray foam insulation last?▼
Spray foam insulation is one of the most durable insulation options available, with a lifespan of 80+ years when properly installed. Unlike fiberglass batting which can sag and settle over time, spray foam maintains its shape and insulating properties indefinitely. It will typically outlast the building it is installed in.
How do I find a qualified spray foam insulation contractor in Mount Prospect, IL?▼
When searching for a spray foam contractor in Mount Prospect, IL, look for ones who are licensed, insured, and have verifiable reviews. Spray foam requires specialized equipment and training — improper installation can cause off-gassing, adhesion failure, or fire hazards. Ask for references, verify their insurance, and get at least 2–3 quotes. A qualified Mount Prospect contractor will also assess your home's ventilation needs — a tightly sealed spray foam installation requires adequate mechanical ventilation to prevent moisture and indoor air quality issues. FoamMatch pre-screens all listed contractors in Mount Prospect for licensing and insurance so you can compare verified professionals in your area.
How long does spray foam installation take?▼
Most residential spray foam jobs take 1–2 days depending on the size of the area. A standard attic takes 4–8 hours. After spraying, the foam cures within 24 hours, though most contractors recommend waiting 24–72 hours before occupying the space due to off-gassing during the curing process.
Does spray foam insulation need to be replaced?▼
No — spray foam insulation does not need to be replaced under normal circumstances. Unlike fiberglass insulation which degrades over time, spray foam maintains its R-value and air sealing properties for the life of the building. The only reasons to remove or replace spray foam are water damage, renovation work, or improper original installation.

Spray Foam Contractors Near Mount Prospect, IL

Not finding the right fit in Mount Prospect? Many spray foam contractors travel to nearby towns. These communities within about 60 miles all have verified contractors listed.

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