Spray Foam Insulation — Boston MA & New England

Spray polyurethane foam (SPF) is the most effective insulation technology available for New England homes and commercial buildings. It insulates and air-seals in a single application, creating a seamless thermal envelope that no other product can match.

Boston MA & New England

Licensed & Insured Contractor

5.0 ★ Google

Free Estimates

Smooth Construction installs both open-cell and closed-cell spray foam throughout Boston, the North Shore, MetroWest, and all of New England. As a certified energy efficiency contractor, we help qualifying homeowners access incentives that cover 75–100% of the project cost.

Service Types

Open Cell Spray Foam

Open-cell spray foam (0.5 lb density) is a softer, semi-rigid foam that expands dramatically on application — up to 100 ...

Closed Cell Spray Foam

Closed-cell spray foam (2 lb density) is the highest-performance insulation product available. Its rigid, dense structur...

Key Benefits

R-3.7 to R-7.8 per inch

Highest insulating value of any commercially available insulation product

Air seals and insulates simultaneously

Eliminates the separate air sealing step required with all other insulation types

Lifetime performance

Spray foam does not settle, compress, or degrade over time

Moisture resistance

Closed-cell foam acts as a Class II vapor retarder, protecting against moisture damage

Structural reinforcement

Closed-cell foam increases wall racking strength by up to 300%

Energy Efficiency incentives available

Most qualifying MA homeowners may qualify for significant incentives on eligible spray foam projects

Our Process

Free Estimate & Assessment

We evaluate your attic, basement, walls, or crawl space and recommend open-cell or closed-cell based on your specific conditions and budget.

Pre-Install Preparation

Spray foam equipment calibrated on-site. All surfaces masked and protected. Penetrations identified.

Application

Two-component foam mixed at the gun and applied in layers to specified thickness. Off-gassing ventilation maintained throughout.

Cure & Inspection

24-hour cure window before re-entry. R-value and coverage verified. Photo documentation provided.

FAQ

Open-cell runs $0.44–$0.65 per board foot. Closed-cell runs $1.00–$1.50 per board foot. A typical attic or basement project costs $2,000–$8,000 before energy-efficiency improvements. Most qualifying MA homeowners may qualify for significant incentives.

Open-cell (R-3.7/inch) is lighter, more affordable, and excellent for soundproofing — best for interior cavities and attic ceilings. Closed-cell (R-6.5–7.8/inch) is denser, moisture-resistant, and structurally reinforcing — best for basements, crawl spaces, and exterior walls.

Yes. As a certified energy efficiency contractor, Smooth helps qualifying MA homeowners access incentives covering 75–100% of the project cost. We handle all paperwork.

Most residential spray foam projects are completed in one day. Large commercial projects may take 2–3 days.

Yes. Once fully cured (24–72 hours), spray foam is inert and non-toxic. We follow all manufacturer safety protocols during application.

Free Estimate

Response within 2 hours. Project scope reviewed on every quote.

Get Free Estimate → 📞 857-214-2434

Energy Free Estimates Available

Most MA homeowners qualify for incentives on qualifying insulation and air sealing projects — amount depends on eligibilitys. We handle all paperwork.

Learn About Energy Efficiency →