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Find Spray foam insulation pros in Amherst

Avatar for Weathertight Spray Foam, LLC
Weathertight Spray Foam, LLC
4.7(
51
)

Serving Amherst, NH and surrounding areas

Approved

In business since 2011

Free estimates

Emergency services offered

"Brad and his team were amazing! They installed spray foam in our attic last summer. Brad was honest, knowledgeable, and professional. The total was exactly as he quoted and he patiently and thoroughly explained the options and answered our questions before moving forward. They showed up on time and kept us informed of their progress. We were nervous about the cost and results, but couldn't be happier. I purposely waited to see how things would fare this winter before leaving a review, but we are experiencing exactly what Brad told us to expect - the house has never been so warm and I'm impressed by the difference. Our primary reason for getting the spray foam was ice dams and we have not encountered the issues we've seen in prior years. I would also like to note we found an issue with the foam earlier this winter. Brad responded immediately when my husband reported the problem and was proactive both in determining the root cause (bad batch of foam) and resolving it quickly without cost to us (sprayed additional foam above and beyond where we saw the issue). He was so apologetic even though what happened was not their fault. We highly recommend Weathertight Spray Foam without any reservations!"
bathroom
1
bathroom
2
kitchen

+39

Response time1 day
Recommended by97%of homeowners
Avatar for N.E.E. Construction & Spray Foam
N.E.E. Construction & Spray Foam
4.1(
46
)

Serving Amherst, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2000

Free estimates

Warranties offered

"Warren and his team provided excellent spray foam and framing work. They were honest and kept their word on the schedule of the project and stayed on budget. Our 3rd floor looks great. We will definitely hire them again!"
Sub-Floor Basement
Basement Sub-Floor & Rim Joist
Rim Joist & Sub-Floor
Blown Insulation
Deck Build

+16

Response time2 days
20 neighbors recently requested a quote
Recommended by83%of homeowners
Avatar for Insul-Kings
Insul-Kings
4.2(
38
)

Serving Amherst, NH and surrounding areas

Approved

In business since 1999

Free estimates

Emergency services offered

"Insul-Kings is wonderful to work with. They called in the morning to narrow the arrival time, which is very considerate. Nate and his crew arrived on time and CRANKED like a well oiled machine. I have a 4' crawl space. You can barely crouch. No problem! That's why God invented knee pads. They foamed and installed the insulation like it was their own home. It was a work of art. and came out better than I imagined. They patiently indulged my "old man" inquisitiveness. The crew represented Insul-Kings very well. I highly recommend them. This was done through the Mass Save program. So the $2100 job only cost me about $500.00"
Blower Door
Truck
Retrofitting Cellulose
Response time2 days
Response rate100%
29 neighbors recently requested a quote
Avatar for AJ Pro Green Insulation Corp
AJ Pro Green Insulation Corp
4.9(
7
)

Serving Amherst, NH and surrounding areas

Approved

In business since 2022

Free estimates

Small jobs welcome

"We were referred to AJ Pro Green by a colleague so we had them come out for a free estimate. They showed up on time and were very professional. They insulated our basement during our remodel and we couldnâ t be happier. The job was done quickly, was within our budget, and communication was fantastic. We would highly recommended!"
Roof open cell - walls closed cell
Roof open cell - walls closed cell
Roof/Attic closed cell
Spray Foam Insulation
Spray Foam Insulation

+57

Response time2 hrs
Recommended by100%of homeowners
Avatar for Adam Vaillancourt Roofing & Gutters
Adam Vaillancourt Roofing & Gutters
4.7(
78
)

Serving Amherst, NH and surrounding areas

Approved

In business since 2004

Free estimates

Emergency services offered

"This company is EXCELLENT and I would give them an A++. Had a great experience from the 1st call I placed. Very knowledgeable and trustworthy. Day of job they had a big crew here that was very well run. Everyone had a job to do and did it! By the time they left, I had a great looking roof and you could not even tell they had been here. This company lives by great customer service. Highly recommend them!!!"
Gutter replacement Old gutters were poorly installed and improperly pitched.
New roof replacement in Jaffrey, NH with Owens Corning shingles and Platinum warranty.
Before and after photo of a house we did in Hancock NH. One of our favorite areas to work! We did this job in one day with Owens Corning shingles with a Platinum warranty. The last roof these homeowners will ever need.
Full roof replacement in Mont Vernon NH. Roof had cracked ridge cap, seal failure and was high nailed.We replace the roof in 1 day.
Response time1 day
Response rate94%
13 neighbors recently requested a quote
Avatar for ABI LLC
ABI LLC
5.0(
4
)

Serving Amherst, NH and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"I could not have been more pleased by the work and the professionalism and the cost and the results. ABI was the first company to respond to my request for bids on the project. They were at the house within days of the request and were knowledgeable about putting insulation over light fixtures embedded in the ceiling. The attic did not have access from within or outside the house and they problem-solved this in a way that was a great solution. They lay down mats so as not to dirty up the carpets and stairs and they wore gear to protect themselves from the insulation. MY house was cleaner when they left than when they arrived. All of the people working on the project were professional and knowledgeable and the cost was extremely reasonable. For the first time this winter, my house feels like it can hold the heat. Looking forward to this summer, because I'm betting it will also improve my air conditioning!"
Response time12 hrs
30 neighbors recently requested a quote
Avatar for On Task Construction LLC
On Task Construction LLC
5.0(
9
)

Serving Amherst, NH and surrounding areas

Approved

In business since 2022

Free estimates

Credit card accepted

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.\n\nTrip charge $100 will be taken off the contracted amount once agreement is signed.

Spray foam
Spray foam
Spray foam
Deck build
Deck build

+4

2 neighbors recently requested a quote
Recommended by33%of homeowners
Avatar for Jimenez Drywall Construction
Jimenez Drywall Construction
5.0(
1
)

Serving Amherst, NH and surrounding areas

Approved

In business since 2020

Free estimates

Warranties offered

Jimenez Drywall Construction is a Family owned and operated Company. Has been recognized as the most dependable company In New England. We provide quality work to all our clients. Whatever you have in mind our professional worker will make it come to life!

UPS FACILITY
UPS FACILITY
UPS FACILITY
ACUSTICAL CEILING
ACOUSTICAL CEILING

+24

Response time4 hrs
19 neighbors recently requested a quote
Sonart Construction Corp.
2.3(
7
)

Serving Amherst, NH and surrounding areas

Approved

In business since 2013

Free estimates

Credit card accepted

Sonart Construction Corp. has over15 years of experience in providing a variety of exterior and interior renovation services. We provide services to Palm Beach, Broward and Miami-Dade Counties.. We specialize in Bathroom Remodeling, Kitchen Remodeling, Flooring and the list goes on. Customer satisfaction is what determines our success, which is why we take a hands-on approach and keep the customer informed through every phase of the project. When interacting with our company, you'll notice that we're particularly focused on the principles of quality workmanship, timely completion, competitive pricing, and integrity in all our business dealings. We combine knowledge and research with our extensive practical experience to ensure a specialized approach for your renovation needs. Give us a call today!

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FAQs for spray foam insulation projects in Amherst, NH

Old insulation should be removed when it shows damage, contamination, or heavy deterioration. If you notice water stains, rodent droppings, mold, or large gaps, plan on taking it out to protect your home’s energy performance and indoor air quality. Removing compromised material eliminates health hazards, cuts energy loss, and sets the stage for a safer, more efficient attic—all while keeping utility bills in check.

R-value measures how well insulation resists heat flow—the higher the number, the better it slows heat transfer. The right R-value keeps your home warmer in winter and cooler in summer, saving energy year-round. Match the rating to your climate zone and have a pro verify performance over time, because moisture or settling can lower R-value and cut efficiency.

Attic insulation can stay in place for 80 to 100 years, but its performance often drops after the first 15. As dust, moisture, or mold build up, the material loses R-value and allows heat to escape. Schedule periodic inspections so a pro can tell you when replacement makes sense—helping you keep energy bills down and indoor comfort up.

You can over-insulate an attic. Beyond the recommended R-value, extra layers don’t add efficiency and can trap moisture, leading to mold or reduced performance. A local insulation pro can measure current levels, confirm the right target for your climate, and advise on any adjustments so you avoid future energy or maintenance headaches.

Insulation can be damaged by mold, pests, water leaks, or accidental electrical contact. When the material is compromised, it loses R-value and can introduce health hazards. Removing and replacing affected sections restores efficiency, while routine inspections from a qualified pro help you catch problems early and keep your attic safe and energy-smart.