How much money can spray foam insulation save on energy bills?

ThermoSeal spray foam insulation can reduce heating and cooling costs by up to 50% compared to conventional insulation. Most homeowners see a return on investment within approximately 3–5 years; actual savings vary by climate, home size, and existing insulation. The savings come from creating a complete air seal that eliminates drafts and reduces the workload on HVAC systems.

How do I become a certified ThermoSeal spray foam installer?

ThermoSeal offers online and on-site spray foam training programs taught by professionals with over 40 years of industry experience. The training covers application techniques, safety procedures, equipment maintenance, and business development. Certified installers receive free project leads, discounts on materials and equipment, and 24/7 technical support.

Is spray foam insulation safe for homes?

Yes. Once fully cured, ThermoSeal spray foam insulation is safe and eco-friendly. It actually improves indoor air quality by creating an airtight seal that reduces outdoor allergens, dust, mold spores, and airborne pollutants from entering your home. ThermoSeal products are formulated without harmful CFCs or HCFCs.

What R-value does ThermoSeal spray foam insulation provide?

ThermoSeal closed cell spray foam provides R-7.3 to R-7.4 per inch, which is significantly higher than fiberglass (R-3.1 to R-3.4 per inch) or cellulose (R-3.2 to R-3.8 per inch). ThermoSeal open cell spray foam provides R-4.1 to R-4.5 per inch with superior air sealing properties.

ThermoSeal USA | High-Performance Spray Foam Insulation

Q: What is the difference between open cell and closed cell spray foam?

Open cell spray foam is lighter, more flexible, expands up to 100x its liquid volume, and provides excellent sound dampening. It is ideal for interior walls and attics. Closed cell spray foam is denser, provides a higher R-value per inch, acts as a moisture and vapor barrier, and adds structural strength to walls and roofs. Closed cell is ideal for exterior applications, basements, and areas prone to moisture.

How It Works

Spray Foam Insulation
in 4 Simple Steps

From consultation to a sealed, energy-efficient building. The process is fast and straightforward.

Free Consultation

Custom Assessment

Your installer inspects the property and recommends the right ThermoSeal product and coverage.

Professional Install

Certified crews apply ThermoSeal spray foam. Most residential jobs are complete in a single day.

Start Saving

Enjoy lower energy bills, better air quality, and a quieter home backed by our lifetime warranty.

The ThermoSeal Advantage

Why Spray Foam
Outperforms the Rest

ThermoSeal creates a continuous, airtight envelope, eliminating the gaps that fiberglass and cellulose leave behind.

Lower Energy Bills

Seal every crack and crevice to cut heating and cooling costs by 30–50% compared to traditional insulation methods.

Increase Home Value

Energy-efficient homes command higher resale value. ThermoSeal is one of the highest-ROI upgrades you can make.

Healthier Air Quality

Block outdoor allergens, dust, and mold spores from entering. Spray foam dramatically improves indoor air quality.

Eco-Friendly Insulation

Reduce your building's carbon footprint by 40%+. A high-efficiency envelope is the greenest insulation upgrade available.

Sound Dampening

Exceptional noise reduction. Spray foam absorbs sound far more effectively than fiberglass for a quieter interior.

Structural Strength

Closed-cell foam adds racking strength to walls and roofs, making your building more resistant to high winds and storms.

Our Products

Four Products. Every Application.

Open cell for residential air sealing and sound control. Closed cell for maximum R-value, moisture protection, and commercial-grade performance. All IAPMO certified.

Open Cell

ThermoSeal 500

0.5 lb/ft³ · Water Blown · GWP 1

Expands 100x, fills every gap completely
NRC 0.75 sound dampening
Lowest GWP in the industry

R-4.1per inch

100xexpansion

GWP 1blowing agent

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Open Cell

ThermoSeal 800

0.75 lb/ft³ · Water Blown · Zero ODP

Higher density air barrier
Superior sound control (NRC 0.65)
Zero ozone depleting substances

R-4.5per inch

75xexpansion

0.75lb/ft³

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Closed Cell

ThermoSeal HFO

2.0 lb/ft³ · Forane 1233zd · GWP 1

Class II vapor barrier built in
No ignition barrier in attics
Fortified Roof approved (286 mph rated)

R-7.4per inch

286 mphwind uplift

GWP 1HFO blown

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Commercial

ThermoSeal 5G

2.0 lb/ft³ · Forane 1233zd · GWP 1

NFPA 285: Type I–IV buildings, any height
Commercial walls per IBC
Tensile strength 56.8 PSI

R-7.3per inch

NFPA 285compliant

56.8 PSItensile

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Compare All Products & Specs →

Spray Foam vs. Traditional

How ThermoSeal Compares

See why spray foam outperforms fiberglass and cellulose across every metric that matters.

Feature	ThermoSeal Spray Foam	Fiberglass Batts	Cellulose
R-Value per Inch	R-4.1 to R-7.4	R-3.1 to R-3.4	R-3.2 to R-3.8
Air Sealing	✓ Complete seal	✕ Gaps & seams	✕ Settles over time
Moisture Barrier	✓ Closed cell	✕ Absorbs water	✕ Absorbs water
Mold Resistance	✓ Inert material	✕ Promotes growth	✕ Can support mold
Sound Dampening	✓ Excellent	Moderate	Good
Structural Support	✓ Adds racking strength	✕ None	✕ None
Energy Savings	Up to 50%	Up to 20%	Up to 25%
Lifespan	Lifetime	15–25 years	20–30 years

What People Say

Trusted by Homeowners
& Contractors Nationwide

Real results from real projects using ThermoSeal spray foam insulation.

We had ThermoSeal sprayed in our attic and crawl space last spring. First winter with it, our heating bill was almost half of what it was the year before. The house finally feels even, no more freezing bedrooms on the second floor.

Mike R.

Homeowner, Connecticut

SprayFoam Magazine Contractor of the Year featuring ThermoSeal installer Howard Millsaps

Contractor of the Year, featuring a ThermoSeal certified installer

We sprayed ThermoSeal 500 in the new Bucket's Restaurant in Pineville, LA. The foam sprayed great, and most importantly our customer was extremely happy with the overall performance on the roof deck and exterior walls.

Jessy

Certified Installer, Louisiana

Installer Training & Certification

Launch Your Spray Foam Business

Our certification program is built on 20+ years of industry experience. Learn application techniques, safety protocols, equipment maintenance, and business development.

Online & On-Site Training

Flexible learning: classroom theory plus hands-on field instruction that fits your schedule.

Free Project Leads

Receive homeowner and architect project bids at no additional cost once you're certified.

Material & Equipment Discounts

Significant savings on spray foam, coatings, rigs, and replacement parts for authorized installers.

24/7 Technical Support

Our experts are always a phone call away to help troubleshoot issues on the job site.

Get Certified Today

Join a growing nationwide network of authorized ThermoSeal spray foam installers.

Same-day shipping on materials No lead fees, ever Dedicated account manager Lifetime material warranty on every product

Start Training →

Frequently Asked Questions

Common Questions About
Spray Foam Insulation

Everything homeowners, builders, and installers ask about ThermoSeal products and services.

What is spray foam insulation and how does it work?

Spray foam insulation is a liquid applied insulation that expands on contact to fill wall cavities, cracks, and gaps. It creates a continuous, airtight seal that prevents air infiltration, the #1 cause of energy loss in buildings. ThermoSeal offers both open cell (lighter, excellent for sound) and closed cell (denser, higher R-value, moisture barrier) spray foam for residential, commercial, and industrial projects.

How much can I save on energy bills with spray foam?

Most homeowners see a 30–50% reduction in heating and cooling costs compared to traditional insulation. ThermoSeal spray foam typically pays for itself within 3–5 years through energy savings alone, and continues saving money year after year for the lifetime of the building. Actual savings vary by climate, home size, and existing insulation.

What's the difference between open cell and closed cell spray foam?

Open cell spray foam (ThermoSeal 500 and 800) is lighter (0.5–0.75 lb/ft³), totally water blown, and provides R-4.1 to R-4.5 per inch. It excels at air sealing and sound dampening with an NRC up to 0.75. Closed cell spray foam (ThermoSeal HFO and 5G) is denser (2.0 lb/ft³), uses next-generation HFO blowing agents with a GWP of 1, and provides R-7.3 to R-7.4 per inch. Closed cell adds vapor barrier properties, structural racking strength, and moisture protection.

Does ThermoSeal spray foam come with a warranty?

Yes. ThermoSeal provides a limited lifetime material warranty on all spray foam products installed by a certified ThermoSeal contractor. Installer workmanship is warranted separately by your contractor. Register your installation with ThermoSeal within 10 days of completion to activate coverage.

Is spray foam insulation safe for my family?

Once fully cured, ThermoSeal spray foam is safe and inert. It actually improves indoor air quality by sealing out outdoor allergens, dust, mold spores, and airborne pollutants. ThermoSeal products are formulated without harmful CFCs or HCFCs and are applied by trained, certified professionals following strict safety protocols.

How do I find a ThermoSeal spray foam installer near me?

ThermoSeal has a network of certified installers across the United States. Visit our Find a Local Installer page or call 1-800-853-1577 to be connected with an Approved ThermoSeal Spray Foam Contractor in your area.

How do I become a certified ThermoSeal installer?

ThermoSeal offers comprehensive online and on-site training taught by industry professionals with 20+ years of experience. The program covers spray foam application, safety, equipment maintenance, and business development. Certified installers receive free project leads, discounts on materials and equipment, and 24/7 technical support. Learn more about training.

How long does spray foam insulation installation take?

Most residential spray foam installations are completed in a single day. Larger commercial or industrial projects may take 2–5 days depending on scope. The foam cures within seconds of application and reaches full strength within 24 hours, so there's minimal disruption to your daily routine.

Cut Energy Costs Up to 50%