Spray Foam Insulation in Boston, MA

Find top-rated spray foam contractors and save up to 35% on energy bills

Compare 9 verified spray foam insulation contractors serving Boston, Massachusetts, backed by 806 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 Boston contractors handle both open-cell and closed-cell spray foam. Homeowners here typically cut energy bills by around 35% — get free quotes and read verified reviews below.

💰 Estimated Energy Savings in Boston

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 Boston

5⭐
95 Google reviews

Recent Reviews:

Henry Kiel★★★★★8 months ago

The Neeco Crew 4 - JR, Juan and Ismael had worked the last day 2 days at our Scituate, MA home insulating the attic with duct sealing, propavent, added 6 inch fiberglass batting. They also took care of our attic door in our room over garage with 2 inch thermal barrier and the kneewall with 2 inch thermal barrier as well. Sealed gaps in the bedroom with dormers in the small closets. Crew 4 took care of adding a bath fan hose and a new attic stair cover. They also took care of the exterior doors with free weatherstripping. The energy savings are real even with our 15 year home we built. This crew was professional and experienced in this type of work. Very grateful for the work they did. I recommend them to any homeowner. This will save us $ during the winter and summer for sure. Greatly appreciated!

Vonda Heddy★★★★★2 weeks ago

After the energy assessment gained from Mass Save, my partner and I decided to change some major home appliances like AC, water heaters, Inductions stove from them to reduce energy use. We got rebates and were grateful!

Hailee S★★★★★5 months ago

Paul Tavares did an amazing job throughout the entire project me……me and my husband were really impressed by not only his service, but by his knowledge and thoroughness….. Anytime we had a question or there was a concern throughout the entire project. He was always time when you go with his responses and help guide us through the entire process. We really appreciate having him on the team and can’t stop singing his praises. My husband is the one who actually told me to give him a shout out on your reviews.

5⭐
118 Google reviews

Recent Reviews:

Douglas Lloyd★★★★★2 months ago

The estimator, Jon Pierre, was very informative with excellent advice on insulation type and installation process. Eduard and Bruno arrived on schedule and did an excellent job. We ran into an issue of a solid wall section which could not be reached for insulation. But I was quickly informed of the issue so there was no problem. All wall openings were plugged with Styrofoam as expected and the worksite was left clean and tidy. I would definitely recommend Mass Pro Insulation to anyone needing this service!

Matthew Clark★★★★★2 weeks ago

First, I would like to start with Jean our estimator and his knowledge and suggestions are fantastic. I cannot believe the difference in my house already even on the first day after of the foam insulation being sprayed in.. My attic and crawlspaces and rim board what a fantastic job. Everything’s nice and clean the heat retention is unbelievable.. The day they did the spray foam was fairly cold and windy, but I had shut off my furnace because it was located near the rim board and we had it protected with plastic tarp and I also wanted the windows open to help with some ventilation so I shut my furnace off in the morning. The temperature of the house was 70°. The windchill had it in the 30s outside. when they finish that afternoon, left around 3:30 I closed my windows. I left the furnace off overnight when I returned the next morning the temperature in my old house only dropped to 67°. I was truly astonished. I’ve been in this house for 28 years, it’s an old Cape house the original on this entire neighborhood property and I know in the past the temperature in my house would’ve been down in the 50s.. So I want to thank them for a fantastic job. I’m very clean process friendly technicians. They did a wonderful job removing all of my old insulation that was starting to show signs of mold and Also, vacuuming out all the loose sprayed insulation . My attic is so clean now and cozy. I could put a nice plywood flooring and use that for extra storage.. Jean, thanks for your knowledge guys. I appreciate the professionalism and the friendliness.. To a job well done I would hire you again in a second.

innovation construction★★★★★4 months ago

Mass Pro Insulation is a highly professional team. I really enjoy working with them. Every project we’ve completed together has delivered great results. They have excellent communication, are extremely professional in their work, and keep the jobsite very clean. Here are some photos of projects we’ve worked on together. Congratulations to Leander, Pierre, and the entire team.

5⭐
1 Google reviews

Recent Reviews:

Will Eaton★★★★★2 years ago

We had a great experience working with greenSTAR. Very knowledgeable of current insulation best practices based on a homes’ age and construction method. I have additional projects requiring insulation and fully trust this team.

5⭐
96 Google reviews

Recent Reviews:

Christina M★★★★★a month ago

Very pleased with the job from Evolution. Vando was very easy to work with and quick with his response and quote. The crew was here early ready for the job but waited until we were ready to leave the house. No mess and the job looks great.

Rodrigo A★★★★★2 months ago

I had Evolution Insulation install spray foam in my attic today, and I couldn’t be happier. The crew was professional, friendly, and super thorough-explained everything, worked fast, and left the place spotless. The insulation looks solid, and I’m confident it’ll keep my home comfy and save on energy bills. Highly recommend them!

iyman wanis★★★★★2 weeks ago

Amazing job! Im building a 3500sq foot home and from start to finish everything about Evolution insulation was professional. I pulled up one day to find 4 spray foam trucks and 4 crews spray foaming the house all at once. I highly recommend if you are looking for a insulation company that gets the job done professionally at a competitive price.

5⭐
108 Google reviews

Recent Reviews:

Random Stuff with Joe★★★★★2 months ago

I hired OnTime Insulation to spray the inside of my metal garage. They sprayed 2" of closed cell insulation. I received 3 quotes from 3 different insulation companies and they were all close in price. OnTime was the lowest estimate by about $150. They were pleasant, flexible, and did top quality work (see photos). I would highly recommend them and if I ever need insulation again in the future, I will call them first.

John Ames★★★★★a month ago

Marco and his team helped me in a pinch on short notice and accommodated a time sensitive insulation project. The guys who did the work, were kind and professional, and worked incredibly hard in unseasonably hot temps to get the job done. All while doing it, after there day had already been completed. The only constructive criticism I would provide is— initial communications via email were a bit ambiguous. While Marco and the team made it work, there were duplicative email threads that had different answers and when I was triple confirming date and them, there was no response and I had to call Marco directly. Ultimately, it worked out and I’m grateful for the team but it made the scheduling more stressful than it needed to be. Overall the work was great and the team too, insulation was done well and that’s what matters.

Myra Lazu★★★★★6 months ago

Stellar work from the start with the estimate and options: Marcos provided the best options and worked within my budget. Then came the crew who worked for 2 days, did a fantastic job, and cleaned up. I have had problems with contractors doing poor work and/or running with my money. You can trust OnTime insulation for a job well done.

5⭐
308 Google reviews

Recent Reviews:

Jerry Mazziotta★★★★★3 months ago

Rogers Insulation did a wonderful job insulating my home. After I had my MassSave audit done, I looked into the reviews of the insulation company assigned and decided to switch to Rogers Insulation based on their excellent reviews. Rogers came out and explained everything to be done. I have a 2 family home with bedrooms and attic on the third floor. Rogers insulated my basement, enclosed porch floor, attic and whole house with blown in insulation under my vinyl siding. It was a week long job in heat of the summer and they were fantastic. Each day, the crew was on time, clean and efficient. They were in parts of my home i was never in. I look forward to reducing my heating cost this winter. Thank you so much for the quality work you did on my home.

Marga Hutcheson★★★★★3 months ago

We had an energy audit, air sealing, insulation, and vapor barrier done via Rogers and the Mass Save program. Everyone at Rogers was great! Very helpful with all our questions, and did great work in a house that was old and complicated. We can already feel the difference in our comfort: the recent hot weather has felt much more bearable.

Joe B★★★★★a month ago

Rogers did an outstanding job insulating my crawl space and basement. They were incredibly efficient and professional. The price was very reasonable too. Highly recommend them!

4.9⭐
39 Google reviews

Recent Reviews:

Keesha Riggs★★★★★2 months ago

These guys did an excellent job on my house. Excellent customer service. I will definitely be using them again in the future!!

Sydney Cornelius★★★★★2 months ago

You definitely have to check them out! They are extremely knowledgeable in what they do. Unlike most, they take the time to go in depth and explain the whole process to you so you don't feel left out. And on top of all that, they offer services to residential, commercial, even small attics, so it doesn't matter where your at, they can get the job done!

Malahni★★★★★3 months ago

I hired Spray Foam Boston to insulate my basement, and I had a positive experience overall. The team was professional from start to finish. They explained the process clearly and delivered exactly what they promised. There wasn't anything I'd change about the experience.

4.8⭐
26 Google reviews

Recent Reviews:

T Burt★★★★★10 months ago

I was referred by my neighbor because I had issues finding someone reliable. The best decision that I have made in 2025 since I'm very picky about life itself. They were professional, on time, and friendly.

Easy Money★★★★★9 months ago

The job was exquisitely done, by extremely professional workers. I will definitely highly recommend this company, and will gladly support again

Marcus Pattison★★★★★8 months ago

From start to finish truly professional service that deserves 6 stars to be honest.

4.7⭐
15 Google reviews

Recent Reviews:

Patricia Toomey★★★★★2 months ago

We recently had home insulation installed by McLaughlin and Williams through the MassSave Program. We could not be happier with this company. Our first introduction with Noreen Sheridan, owner of McLaughlin and Williams which is a family owned business, was warm and welcoming. Noreen was extremely helpful with scheduling, guiding us through the process and keeping us informed and up-to-date. Her crew was courteous, professional, dependable and thorough. Her foreman, Jay Pinto, never left each day without informing us what work was accomplish that day and what work would be performed the following day. The walls that needed to be insulated from the interior were left in conditions where only paint needed to be applied. They went above and beyond and finished the job in exactly the six days that was told to us at scheduling. I highly recommend McLaughlin and Williams and can't thank them enough for a job well done!

Kurt Hanson★★★★★5 months ago

Did great work insulating a few odd areas around the house. The spray foam crew managed to get above and down the side of an attic shower we didn’t demo. The cellulose crew was efficient. Everyone was personable, flexible and professional

Daniel Reid★★★★★3 years ago

McLaughin insulated our house through the Mass Saves program and did a great job. The crew was great to work with and took the time to customize the work order once they arrived. Work we got done: -Blow-in cellulose insulation -Insulating sunroom floor -Insulating sunroom ceiling. A picture of the sunroom insulation is attached (the sloppy purple foam work in the background is mine).

Frequently Asked Questions — Spray Foam Insulation in Boston

These are the questions Boston homeowners ask most about spray foam cost, R-value, and open- vs. closed-cell foam — with context for local pricing and roughly 35% typical energy savings. Compare the 9 verified Boston contractors above for exact quotes.

How much can spray foam insulation save on heating and cooling bills in Boston?▼
Homeowners in mixed climates like Boston, MA 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 Boston?▼
For most homes in Boston, MA, 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 in Boston, MA?▼
In Boston, MA 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 Boston costs $2,000–$6,000. Most Boston 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 Boston, MA?▼
When searching for a spray foam contractor in Boston, MA, 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 Boston 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 Boston 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.