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Get free spray foam insulation quotes.

Tell us about the attic, walls, crawl space or building. See a ballpark instantly, then a spray foam specialist follows up with real numbers. Free, no obligation.

  • About 60 seconds
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Step 1 of 6About 60 seconds
Who is the project for?
Where do you want spray foam?

Pick everything that applies.

New construction or an existing building?
Roughly how big is the area?

A best guess is fine — your installer measures before quoting.

sq ft

Foam preference

When would you like to start — and where?
Where should we send your options?

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How it works

Three steps to a warmer, quieter house.

  1. 1

    Tell us about the job

    Areas, size, timing and ZIP. Your ballpark updates live as you answer.

  2. 2

    A specialist follows up

    They’ll ask about access, existing insulation and moisture — the things that change the price.

  3. 3

    Compare real options

    Open or closed cell, how thick, and what it costs. Decide on your schedule.

What drives the price

Why two quotes for the same attic can be different.

From our 2026 cost guide: most homeowners pay about $1.00–$3.50 per square foot installed.

Foam type & thickness

Closed cell costs more per square foot than open cell, and thicker passes use more material and time.

The area being sprayed

Wide-open attics are cheapest per foot; tight crawl spaces and finished walls take more labor.

New build vs. retrofit

Open framing sprays fastest. Retrofits add prep, protection and cleanup.

Where you live

Labor rates vary by region — metro areas usually run higher than rural ones.

Job size

Bigger jobs spread setup and travel across more square feet; very small jobs may carry a minimum.

Prep & access

Removing old insulation, sealing big gaps or working around ducts and wiring adds cost.

Thermal X-ray

Not sure where to start? Follow the heat.

Cross-section of a house showing where heat escapes Before spray foam, heat leaks out through the attic, walls and rim joists while cold air rises from the crawl space. After spray foam, the envelope is sealed and the temperature inside is even. Outside 28°F 64°
Heat escapingCold air leaking inSpray foam
Attic targetR-49–60
Floor targetR-13–38
Avg. savings15%

Attic & roof deck

Why it leaks. Warm air rises and slips out through ceiling gaps, can lights, top plates and the attic hatch. In summer the attic bakes and pushes heat back down.

The foam fix. Spray the underside of the roof deck to create a sealed, conditioned attic — or seal and insulate the attic floor. Open cell is common; closed cell is used where moisture control matters.

Exterior walls

Why it leaks. Batts leave gaps around outlets, wiring, plumbing and odd framing. Every gap is a path for air — and air carries most of the heat.

The foam fix. Foam expands to fill the whole cavity and air-seals as it cures. Closed cell packs the most R-value into a 2x4 wall; open cell is a budget-friendly full fill in new construction.

Rim joists

Why it leaks. The band where the house sits on the foundation is one of the leakiest spots in most homes — and one of the fastest, cheapest fixes.

The foam fix. A few inches of closed cell seals and insulates the rim in one pass. ENERGY STAR specifically calls out accessible basement rim joists.

Crawl space & floors

Why it leaks. Cold, damp crawl space air chills the floors above and feeds moisture and odors into the house through the stack effect.

The foam fix. Closed cell on the crawl space walls and rim (with a ground vapor barrier), or under the floor, keeps floors warmer and moisture out.

Targets are ENERGY STAR’s recommended levels for existing homes (R-value table); savings are its modeled average for air sealing plus insulation (methodology). Zone shown is typical for most of your state.

Seal my house — get quotes