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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

💰 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

Lighthouse Insulation Services LLC

📞 Call Now

Direct: 8774004491

3.8⭐
5 Google reviews

Recent Reviews:

Andrew Zelinski★★★★★5 years ago

We recently had Patrick and his team come out to complete an insulation job for soundproofing purposes. To our collective surprise, we found there was already insulation blown in to the space we wanted filled. Despite the fact he was all set up and ready to go, he advised us on other more effective steps to reach our desired result. He put himself in our shoes and gave his honest professional advice even though it meant losing the job. He packed up his gear and didn't charge us a dime. Much appreciated! We'll call Lighthouse first next time a job comes up.

Andres Saldana★★★★★9 years ago

I hired Lighthouse insulation to encapsulate and insulate my crawlspace. I couldn’t be happier that I decided to go with them as previous contractors bids were priced ridiculous. The owner Pat took the time to explain the scope of the work and provide recommendations to me even if I chose not to go with them. He was real genuine guy that I didn’t feel wanted to make a buck off of me at the expense for sharing his knowledge and past experiences similar to my crawlspace. This became evident once I hired them. Pat was running the plastic liner on the crawlspace floor when he immediately stopped work to let me know he discovered the humidity source was broken seal in a sanitary pipe. Pat and his crew accommodated their schedule for the week it took a plumber to come out and fix it. I think any other contractor would have probably kept going and encapsulated over the broken pipe! I have peace of mind now! My floor should be a lot warmer this coming winter. Thanks Pat!

Elizabeth Williams★★★★★6 years ago

We recently had our finished attic spray foamed by Patrick and his team. They did an excellent job and were very professional. The job was a lot bigger than they though and Patrick went above and beyond to make us happy. I highly recommend lighthouse insulation. We are already feeling the results of the spray foam with the drastic change in temperature we have been having over the last week. Thank you!

Frequently Asked Questions — Spray Foam Insulation in Mount Prospect

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?▼
Spray foam insulation typically costs $1.00–$3.00 per square foot installed, depending on the type and your location. 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 costs $2,000–$6,000. Most 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?▼
Look for contractors 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 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 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.
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