
Serving Commack, NY and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
"Very knowledgeable, professional, and clean. Would highly recommend, excellent service, will use again."

*The Angi rating for Energy Efficiency Auditing companies in Commack, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.
*The HomeAdvisor rating for Energy Efficiency Auditing companies in Commack, NY is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Energy Efficiency Auditing needs.
Last update on August 05, 2026

Serving Commack, NY and surrounding areas
Approved
In business since 2019
Free estimates
Warranties offered
"Very knowledgeable, professional, and clean. Would highly recommend, excellent service, will use again."

Serving Commack, NY and surrounding areas
Approved
In business since 1999
Free estimates
Credit card accepted
"Ultimate pros. Extremely efficient and knowledgeable. Called for a quote for insulation and received an education on all aspects of my attic. Brian performed a complete in house audit of my energy systems while he was here. Just wish I was in a financial position to hire a top shelf professional organization such as theirs. My loss."





+152

Serving Commack, NY and surrounding areas
Approved
In business since 2014
Free estimates
Offers commercial services
"Very professional and Helpful. Gave me great things to start with and a ton of information. Would highly recommend"





+1

Serving Commack, NY and surrounding areas
Approved
Emergency services offered
Small jobs welcome
Credit card accepted
I conduct energy audit tests for homes, whether they are colonial or brand new construction. I can recommend you various forms of weathersealant, thermal wrappings, and storm window techniques, saving you thousands in the form of long-term heat insulation tech-forward solutions.

Serving Commack, NY and surrounding areas
In business since 2014
Free estimates
Credit card accepted
"Everything went smooth - a lot smoother than I thought! They were in and out very quickly. They were one of the only companies where the owner was there from the estimate to the installation."





+4

Serving Commack, NY and surrounding areas
In business since 2009
Free estimates
Credit card accepted
"Green Audit performed a home energy audit on my home. I originally purchased the deal they offered through Angie's List for $75, but was informed by Green Audit that the audit can be done for free provided by funding through PSEG so Green Audit refunded the $75 and there was no charge for the audit. Matt and Richard performed the audit. I thought they were very professional and provided a lot of useful information. After the completion of the audit they provided me with an estimate for recommended efficiency work and a ROI summary of what the work could save me in money over time. The estimate they provided was extensive and included a lot of items for energy efficiency, some of which you would not get from a typical insulation company, I thought their pricing was a bit on the high side and I decided not to use them."

Serving Commack, NY and surrounding areas
In business since 1987
Free estimates
Emergency services offered
"It went really well. They came in immediately and sealed off the basement from the rest of the house (There's no door to the basement)). They also set up very large and powerful hepa-air-cleaning units which they kept running through the whole job and in fact until the industrial hygienist returned for post-testing after the job was completed. The manager Mike assured me that the job would be done with the utmost effort and care and that's exactly what happened. The main workers, Marcello and Israel were terrific, meticulous, hard-working, reliable, responsive to any concerns I raised. I really couldn't have asked for any more. The post-test results showed Zero spores of the two bad molds with high readings in the pre-job testing. It's a really nice feeling when people come in and do the job just as they promised to."


Serving Commack, NY and surrounding areas
In business since 2010
Free estimates
Emergency services offered
"Joe Ryan, the salesman, was very knowledgeable and helped us choose the best boiler and hot water heater for our home. From our first meeting with him through the installation, he was always very accessible and set our expectations about next steps and timing.
The Powersmith crew (Sean, Bobby, and Brian) showed up when promised. At all points during the two-day job, they were patient and happy to answer questions. Further, they were happy to accommodate requests of mine regarding the cosmetic nature of the job that may have seemed trivial, but which were important to me.
Following completion of the job, Bubu (Assistant Project Manager) has been easy to reach and very helpful in scheduling the Town's final inspection and helping me file for the various available rebates.
As a green-energy company (BPI?), Powersmith had access to certain rebates that gave it a significant price advantage over most plumbers doing oil-to-gas conversions.
We are very happy with the job, and are happy to highly recommend Powersmith."





+9

Serving Commack, NY and surrounding areas
In business since 1979
Free estimates
Credit card accepted
"Joey could not be better to work with. Prompt responses, on time (early actually) day of the job and completed in less time than anticipated. Walked me through every step of the process, why he was doing what he was doing, and stands behind his work. He and his crew are clean and restored everything back to it's original spot when completed."





+1

Serving Commack, NY and surrounding areas
In business since 1986
Free estimates
Emergency services offered
"The customer service and work done was great, they came quickly assessed what work needed to be done, gave me an estimate that was very close to final price and a reasonable price at that. I’ve had to call plumbers in the past and they’ve left my place a mess, but these guys cleaned up way more than I expected. I was in complete panic before calling and they were extremely helpful and made the process an ease. I would definitely call them again if I need the services."



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