Travis and Shawn came to assemble a large armoire for us. It was a complex job, that took a ling…read moretime, but they did a great job. They also went the extra mile and anchored the pieces to the wall. That was beyond the scope of the job, and it showed us that when they do a job, they want to make sure it's done right. We would definitely have them back for other projects.

Travis was super prompt in getting back to me about a door repair. He came out quickly to check…read morethings out and took the time to explain what needed to be done to fix the door frame. He was able to get the job done the same day and worked really efficiently. I also appreciated that he showed me his credentials -- it gave me peace of mind. Very real, friendly, and professional. I'll definitely be reaching out to him for future projects

Disappointed in their work. While the insulation might be good, the mess they left was horrendous…read more I'm still cleaning it up. The insulation was left everywhere. An attempt was made to clean it up the next day, but it was a feeble attempt.

· Best home performance llc…read more They are liars. Claimed to be an approved energize CT contractor and was going to handle reimbursement from energize CT fund from start to finish, to include extend my rebate for reimbursement of $3,000+cost. Paid upfront and Nope, didn't happen. He's not approved as an energize CT contractor. Stopped return phone calls. Now I'm out $3,000. Insulation in exterior walls were not installed to R15 pack as claimed. House is cold. Walls I have insulated personally are warm to touch, walls they supposed filled to R15 are cold from exterior temperature. The exterior holes they make, they don't seal those properly to avoid cold and hot air from entering. I had to do that myself to stop air from entering walls. Do yourself a favor and find another company to do the work. I bought into his nice guy, great business, great reviews bull and now I'm paying the price for it. If I could give Best Home Performance no stars, I would.

I have contracted Nealon twice, both times Dave provided me with thorough information and…read morealternatives with competitive price quotes. First project, completed a year ago, was for insulating a single room, for which Dave suggested an alternative to my initial request that cost much less. Chris and his crew completed the work from the interior of the house in a single day, and I was exceedingly pleased with the results. Chris was just as informative and helpful and courteous and friendly as was Dave. My second project, completed last week, was for insulating the entire house with blown-in cellulose from the exterior of the house. As the exterior sidings are aluminum rather than vinyl, this was more difficult and more time-consuming, as aluminum does not bend as easily. In fact, another company informed they do not work on houses with aluminum siding as the risk of damage is too great. But Bennett and his crew were such efficient and hard workers that they completed the job in two days with no damage to the siding. Same as for Dave and Chris, Bennett's information and advice were invaluable.

Nealon was great to work with! Timely communication right from the estimate to the install. the…read morecrew was polite neat and very respectful of our home. They did a fantastic job. Our home is warm and now a pleasure to be in and we are saving on our heating and cooling bills. I would highly recommend using them if you want a high-quality Professional Company that treats your home with respect and gives it maximum comfort at a very affordable cost. thanks again Nealon!

Had a fantastic experience with the company they are competitively priced, on time and courteous…read more They were patient with my questions and informative with what was being done. Highly recommend them. Special thanks to Daniel for Coming out looking at my home and recommending the appropriate things I needed. Jessica for answering the many questions I called in. And Dave for a fast and well done install!

Holy !! I had Complete Basement Systems come in and put a French drain and sump pump system in my…read morebasement after I experienced a flood after moving in to my house only 9 days prior. Work was performed clean. The workers were very nice and the system is still going strong and haven't had any issues 8 YEARS LATER. Pump probably runs every time it rains heavy now which only makes me smile. One time investment and a lifetime of peace of mind. Trust me don't deal with the water and leaks and mold just get it done. The price was reasonable for the amount of work that was performed. So glad I put that system in.

Great Company!!Always get at least four or five estimates with getting your house insulated there's…read morea lot of competition on Long Island but only very few like me the owner the owner that actually does the work himself though subcontracting

They did a great Job and cleaned up nicely after themselves, which I appreciated very much! They…read morealso gave me a very good price and were friendly and easy to deal with.

We scheduled them to give us a knee-wall estimate ONLY. I…read morewas very clear about this with the nice girl on the phone. She verified that is what would happen when she re-confirmed the appointment. I never got any estimate for the knee wall, because he noticed we were not going to agree to cutting holes in the ceiling, roof and siding, in order to do the entire house. "I want to get you on the schedule today." He finally agreed to email(2) separated estimates. One for the knee wall the other for "demolishing our cape." Nothing....hard pressure sales tactics. Moving on.....

We bought our home last December and quickly realized we were in need of insulation. When you buy…read morea new home it takes a while to get to know its quirks, what it needs and set a timeline for improvements. We put insulation at the top of the list. Our oil delivery costs for astronomical. The house didn't retain its temperature so one minute it was warm and the next very cold. The furnace was constantly coming on and off. A huge expense for our family. Once we had the insulation installed along with air sealing around our entire home we were hoping the next winter would go better. So now that it's winter we can say that our furnace does not constantly click on. Our home retains the heat. We set our thermostat at around 66 degrees knowing it will get up to 68 and sometimes 70 if we are cooking. Our oil deliveries have been way less gallons per deliver, we are using less fuel to maintain the heat in our home. Installers were professional. Clive and his team were very considerate of our home, keeping it clean with drop cloths and removing all the old insulation carefully to keep the house from collecting drops of it. It is amazing how they build up walls in the attic with a small space to walk. The air sealing in the basement has been nice because the heat in the finished portion doesn't kick on as much because its not being sucked out of the house. The job was done in one day. It was our first Summer in the house and we had the work done right before that, so I cannot tell you what a previous Summer would have been like but I can only imagine how hard the A/C must have had to work to keep the house cool. And, the cost must have been really high. Our A/C is in the attic so they insulated the duct work to each room as well. Keeping the air traveling in the duct work cool as it traveled from the a/c to the room. Meaning again, it doesn't have to work so hard to keep the house cool. Genius! I will post this on CT Basement Systems too because I think there are more reviews there for the insulation.

Worst decision I ever made was hiring this company. They do a hard sale upfront but service is…read moretrash. They will never be on time due to poor internal communication and a scaled down work crew!

Update March 2026: Nearly 11 months after the installation on April 9 2025 the odor and concerns…read moredescribed below remain unresolved and our upstairs space is still affected. I am updating this review to reflect our ongoing experience. I am sharing our experience with USA Insulation of Connecticut so other homeowners can be aware of the issues we encountered and make an informed decision. 1. Strong chemical odor Immediately after installation our daughter's room had a strong smell similar to burning rubber or a yoga mat. The odor becomes stronger with humidity and it has not gone away. 2. Unlivable conditions Because of the smell our family had to move downstairs. Our upstairs space has been difficult to use since the insulation was installed on April 9 2025. 3. No noticeable cooling benefit We were told the insulation would help improve cooling upstairs. In our experience we did not notice a meaningful difference after the installation. 4. Health and safety questions We asked the company if they could confirm whether the product was formaldehyde free due to concerns about phenolic resins. We did not receive documentation confirming this. 5. Safety Data Sheet concerns An independent environmental testing company told us they could not proceed with testing because the Safety Data Sheet that was provided was missing information and did not follow the standard format they expected. 6. Communication challenges We had difficulty getting clear answers about our concerns and were not able to have the situation reviewed by someone higher within the company despite asking several times. 7. Removal offered with conditions The company did offer to remove the foam at no cost. However the proposal required signing an agreement releasing the company from future claims and liabilities. Because our concerns about the odor and the situation remained unresolved we were not comfortable agreeing to those terms.