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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

"I was really impressed with the quality and professionalism we received from Correct Energy. They gave us a fair price and performed the work almost immediately after the consultation. The end result was unbelievable too. The second floor is usually so hot but after the spray foam even without AC the temperature change was drastic, and it's far less noisy as well. I was also impressed with how well they taped off the walls, floors, and electrical to cut down on the mess afterwards. I didn't have to do any cleanup at all. Would highly recommend this company and we will be using their services in the future for subsequent projects."
Response time3 days
29 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

"just now True building Performance's crew did an incredible job for us. The project was to insulate our home. These guys showed up with cheerful attitudes and completed such an incredible and efficient job. From start to finish they were friendly and interacted with our family all while working in the project. The kids enjoyed watching them work. They cleaned up after themselves too which was a pleasant surprise . It was also great that we were able to get more done than we had anticipated. Originally we had elected to insulate upstairs only but we are able to completely insulate the entire house, downstairs being from the inside. They have plastic protecting their workspace from top to bottom. Joe, the lead contractor is so knowledgeable and incredibly acomodating. Paul Mendel the company's owner is the same way. A great company to do buissness with. We are just overwhelmed with gratitude and amazement at what a difference we are already noticing in the reduction of street noise from the cellulose insulation. I would Highly recommend True Building performance to anyone looking to seal air gaps and install insulation."
Additional Photos
Response time2 days
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for Saratoga Cellulose
Saratoga Cellulose
4.9(
40
)

Serving Nassau, NY and surrounding areas

Approved

Super Service Award Winner

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
44 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Expediant Environmental Solutions, LLC
Expediant Environmental Solutions, LLC
3.9(
438
)

Serving Nassau, NY and surrounding areas

Approved

In business since 1995

Free estimates

Emergency services offered

"I was lucky to come across this company on home advisor, Michael, Devon, and Shane exceeded my expectations. They were quick and professional. These guys treated mold and replaced the insulation in my new home, and went as far as removing all of the junk left by the previous owners. My crawl space looks like a completely different home within the week it took them to complete the job. I couldn't have asked for a better job, and I intend to mention them whenever I hear someone in need of work!"
Response time2 days
253 neighbors recently requested a quote
Recommended by87%of homeowners
Avatar for Get Out! Critters Exclusion & Carpentry
Get Out! Critters Exclusion & Carpentry
5.0(
18
)

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

74 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

Locally owned and operated building insulation contractor, with a combined 25 years experience. Specializing in many different projects. Renovation, design, new construction and retro fitting in both residential and commercial applications. Using manufacturer trained and certified applicators.

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

1 neighbors recently requested a quote
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

Anderson Construction Corporation
New to Angi

Serving Nassau, NY and surrounding areas

Approved

In business since 2017

Free estimates

Credit card accepted

A.C.C. is a family-owned full service residential remodeling corporation. We take pride in our dependability and ensuring that you can count on us to complete the job in a timely manner... Because building your dream home, shouldn't have to be a nightmare. At present we are specializing in residential remodeling and home improvements. A.C.C. is fully insured and MBE Certified.

5 neighbors recently requested a quote
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
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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.