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Spray Foam Insulation in Great Falls, MT

Find top-rated spray foam contractors and save up to 40% on energy bills

Compare 3 verified spray foam insulation contractors serving Great Falls, Montana, backed by 50 customer reviews averaging 4.9★. Whether you're insulating a new build, retrofitting an existing home, or upgrading attic and crawl-space insulation, these pre-screened Great Falls contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 40% — get free quotes and read verified reviews below.

💰 Estimated Energy Savings in Great Falls

40%
Average Energy Savings
Typical range: 35% - 45%
$2,160
Estimated Annual Savings
Based on $450/month average energy cost
3 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 Subarctic.

Verified Contractors in Great Falls

Treasure State Insulation

📞 Call Now🌐 Visit Website

Direct: (406) 403-9315

5⭐
23 Google reviews

Recent Reviews:

Ryan Guenther★★★★★a month ago

These guys do an excellent job at spray foam installation. They are clean, fast, efficient, and do a very Good job. Their customer service is top notch and when they say they’re gonna be here, they’re here. Would highly recommend them to anybody looking for spray foam solutions throughout Montana.

Cody Skinner★★★★★11 months ago

I have used them so many times, for a reason! Even if there is ever a minor hick up along the path, it’s sorted out, and the end product keeps brining me back. They communicate all the way through each project and it is done in a timely manner. Thankful for this crew!

Mikbiffy★★★★★5 months ago

Fantastic job installing spray foam insulation at our off grid cabin. Showed up on time and worked all day to ensure job completion. Covered all areas completely to include some cumbersome end runs. Everything was sealed and taped off prior to work starting and clean up at the end was great. Highly recommended!

Klinefelter's Insulation

📞 Call Now🌐 Visit Website

Direct: (406) 452-2954

5⭐
24 Google reviews

Recent Reviews:

C M★★★★★2 years ago

This company is probably the best company I have ever seen operate. Many recommended them but you can’t say enough. They operated like a well oiled military fire-team, fast efficient and just awesome. Owner Eric came, sprayed, answered all questions. Kept the crew on their toes and it was non stop from the moment they arrived. If there was a 10 for a rating they deserve a 20 Eric, thank you. I almost thought there were no companies left in America worthy of a 5. Awesome job thanks

Douglas Sunderland★★★★★a year ago

Great prices on fiberglass batts. They have a very friendly, helpful staff.

Jeff Trafelet★★★★★a year ago

Very helpful providing information as well as product. Eric has been great to work with! Highly recommend.

Therma Shield Insulation

📞 Call Now

Direct: (406) 403-3200

4.7⭐
3 Google reviews

Recent Reviews:

ross contway★★★★★5 years ago

These guys do what they say, when they say, and with no hassles. Had them foam insulate a barn, gave them a weeks worth of notice, they showed up and didn’t leave til it was done. They provided their own heat, temp enclosures and temp power. They are “no hassle “ people, which are few and far between these days.

StashyPatrick★★★★★2 years ago

These guys took a job for me on short notice and got it done quick.

Alan Serfoss★★★★3 years ago

Frequently Asked Questions — Spray Foam Insulation in Great Falls

These are the questions Great Falls homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 40% typical energy savings. Compare the 3 verified Great Falls contractors above for exact quotes.

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 Great Falls, MT?▼
In Great Falls, MT 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 Great Falls costs $2,000–$6,000. Most Great Falls 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 Great Falls, MT?▼
When searching for a spray foam contractor in Great Falls, MT, 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 Great Falls 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 Great Falls 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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