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Find Spray foam insulation pros in Nassau

Avatar for Correct Energy Spray Foam
Correct Energy Spray Foam
4.6(
19
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2007

Emergency services offered

Warranties offered

"What an absolute DREAM! Correct Energy is an incredible company. Knowledge, professional and efficient! I contacted a few insulation companies but the proposed methods were not through. Correct Energy and especially Ray’s knowledge and experience were above and beyond. CE came out to assess and spent a generous amt of time explaining EVERYTHING. CE came when they said they would. The crew was professional and spent a few days here. They left everything immaculate. My place is old, built in the 1940’s so many challenges came up that they handled like absolute pro’s. Their work has and will continue to save so much on energy, the difference of before and after is immediate and drastic. I can’t wait for them to come back and do my basement next! I can't say enough about this company. Pros work here!!! Hire them!!! You will not be disappointed.."
33 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for True Building Performance
True Building Performance
5.0(
13
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2013

Free estimates

Customers say: True professional

"The job went great. It took two days; the first to remove and dispose of old fiberglass batts and debris and the second to do the attic work. This included: air sealing the attic, fire protection for all recessed lighting in ceiling, fire rated barrier around chimney, constructing and insulating a new hatch for access to attic, creating proper ventilation from soffits (which had been an ongoing problem) and blowing in approximately 18 inches of new cellulose insulation. The workers (four men) arrived on time, worked extremely well as a team and where very meticulous in their clean-up. I was very impressed by their professionalism and experience in completing the job."
Additional Photos
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Get Out! Critters Exclusion & Carpentry
Get Out! Critters Exclusion & Carpentry
5.0(
19
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

"Matt was exceptional. He did a great job. Mice in the attic. He secured the areas outside where the mice were getting in. Then he set traps and replaced a vent in the attic. His price was very reasonable and he offers a warranty. I would highly recommend Matt from Got It!!"
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Squirrel exclusion
Squirrel exclusion
Squirrel exclusion
Squirrel exclusion

+11

69 neighbors recently requested a quote
Avatar for Advanced Energy Adviser's
Advanced Energy Adviser's
4.1(
11
)

Serving Nassau, NY and surrounding areas

Approved

In business since 2014

Free estimates

Warranties offered

"Asked for a quote on removing an old deck, replacing with a larger one. Price quoted was fair, and we accepted. We're very pleased with the final product, and the whole ordeal was hassle-free for me and my wife. Every worker involved was very professional. Communication from start to finish was excellent, and I feel the job was completed faster than we had expected. Will be using this company in the future for other projects."
Response time2 days
Recommended by90%of homeowners
SCW Construction
New to Angi

Serving Nassau, NY and surrounding areas

Approved

In business since 2010

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.\n\n\n

Avatar for Orkin
Orkin
New to Angi

Serving Nassau, NY and surrounding areas

Approved

In business since 1901

Free estimates

Credit card accepted

Did you know that Orkin does Insulation? Our more than 100 years of pest control experience began in 1901 by then fourteen-year-old Otto Orkin. In that , we've become a leader Pest Control as well as an expert Home Insulation. Orkin - We can help energize your home. \n\n

Avatar for Sol Foam Insulation, LLC
Sol Foam Insulation, LLC
5.0(
30
)

Serving Nassau, NY and surrounding areas

Emergency services offered

"Sean visited our home to give us an estimate on insulating our basement ceiling - he was very genuine and professional and guided us in a different direction; he was straight-forward and explained how our design did not actually need spray foam, and we could do the job ourselves for a whole lot less. He was knowledgeable, helpful, and kind, and we would definitely recommend this company to anyone!"
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+11

Recommended by100%of homeowners
Avatar for Advanced Spray Foam Inc
Advanced Spray Foam Inc
4.5(
11
)

Serving Nassau, NY and surrounding areas

In business since 2013

Free estimates

Emergency services offered

"OK. Foam wasn't as uniformly full between studs as with previous 2013 same foam insulation material applied by a Pittsfield, MA similar contractor (no longer in business, apparently). Not a large technical concern.   Pointed out some small partially filled voids at baseboards. Contractor filled them without issue. In fairness quote of June 2016 said 5.5" thickness, not "uniformly full to studs" nor "smooth at studs' faces".   I would have preferred that spray "ripples" were less pronounced.   I don't expect any reduction in insulating effect, sound deadening or air infiltration prevention.  Contractor was flexible with start date when I took a few days longer to get electrical done than originally planned.  Contractor cleaned up after themselves thoroughly.  Arrived at 09:15 and departed at 13:00 for about 450 square foot job.  Minimal equipment trailer and truck "footprint" on driveway."
Recommended by100%of homeowners
Avatar for Saratoga Cellulose
Saratoga Cellulose
4.9(
40
)

Serving Nassau, NY and surrounding areas

In business since 2021

Free estimates

Emergency services offered

"Dealing with drafty walls and escalating heating costs was a persistent issue in our home, until we discovered Saratoga Cellulose & Foam. The difference they made was nothing short of miraculous. What sets them apart, aside from their exceptional service, is the depth of knowledge and expertise that Travis, the owner, brings to the table. Travis and his team tackled a significant challenge in our home â removing old fiberglass insulation that had been severely damaged by mice. Not only did they efficiently clear out the old material, but they also replaced it with top-notch cellulose insulation containing borate. This choice was ingenious, as the borate makes the insulation unappealing to mice and insects, effectively addressing our pest problem alongside the insulation upgrade. The transformation in our home was immediate and profound. The drafts that once made living spaces uncomfortable are now completely gone. Our house is not only warmer and cozier but also healthier and more energy-efficient, leading to noticeably lower heating bills. I'm thoroughly impressed by the professionalism and skill demonstrated by Travis and his team. Their work didn't just improve our home; it enhanced our daily living quality. I highly recommend Saratoga Cellulose & Foam to anyone looking for top-tier insulation services. They don't just do the job â they do it with excellence and a deep understanding of what your home needs."
Attic Cellulose
Spray foam Insulation
Exterior Wall Dense packing
Exterior Wall Insulation
Exterior Wall's Dense Packed with Cellulose

+10

Response time1 day
24 neighbors recently requested a quote
Recommended by80%of homeowners
Showing 1-10 of 46
FAQs for spray foam insulation projects in Nassau, NY

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.