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TRUSTED BY COMMACK, NY HOMEOWNERS

  • Average homeowner rating star icon4.3
    Average homeowner rating
  • Verified reviews icon50
    Verified energy efficiency auditing services reviews

Find Energy efficiency auditors in Commack

Avatar for FLG Home Performance
FLG Home Performance
4.9(
30
)
Energy Audit - For BusinessHome Energy Audit

Serving Commack, NY and surrounding areas

Approved

In business since 2019

Free estimates

Warranties offered

"Frank is extremely professional and offers expert service. He is prompt in returning phone calls and he is available by phone and text. His prices are excellent. I highly recommend FLG Performance to service your furnace."
Response time2 hrs
Recommended by90%of homeowners
Avatar for Triple H Insulation
Triple H Insulation
4.6(
41
)
Home Energy Audit

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."
Spray Foam -Rim Joist
Cellulose Insulation
Cellulose Insulation
SilverGlo -Crawl Space
Cellulose Insulation

+152

Response time12 hrs
Response rate93%
7 neighbors recently requested a quote
Avatar for Gabriel Hahn
Gabriel Hahn
New to Angi
Home Energy Audit

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.

Avatar for Green Audit USA
Green Audit USA
4.4(
100
)
Energy Audit - For BusinessHome Energy Audit

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."
Recommended by89%of homeowners
Avatar for Eco Green Solutions
Eco Green Solutions
5.0(
28
)
Energy Audit - For BusinessHome Energy Audit

Serving Commack, NY and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"

Eco Green Solutions were great to deal with.  They came to the home for an initial consultation and provided me with great solutions for the heat loss problem I had in the home.  The salesperson provided me a clean understandable proposal with different options I could choose from depending on my budget.

When we agreed upon the scope their office scheduled an appointment with me to schedule the work.  Their crew showed up on time, wore booties on their feet to keep my floors as clean as possible and did a remarkable job patching and priming the walls for painting.  I wasn't home when the work was performed, but the painting contractor I had in the home at the same time commented on how professional they were and how they made his job so much easier.

As a homeowner, heating and cooling cost are real concerns.  I highly recommend anyone considered with those things like I am to have Eco Green Solutions do an energy audit of their home and see where they can save.


"
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Recommended by100%of homeowners
Avatar for Powersmith Home Energy Solutions
Powersmith Home Energy Solutions
4.2(
27
)
Energy Audit - For BusinessHome Energy Audit

Serving Commack, NY and surrounding areas

In business since 2010

Free estimates

Emergency services offered

"Powersmith (Mike and his team) was the most professional, courteous, clean and prompt group of plumbers we have ever had the opportunity to work with. They arrived EARLY to perform the job both days.  The job which was a very large one, included removal of our old oil system including the tank, prepping of our chimney, installation of our new gas burning system.  Each team of workers was more efficient than the next.  The first day the Salesperson, Joe came to our house, we knew they were the ones for the job.  They operated like a (pardon the pun) well operated machine.  They were so professional and looked genuinely happy to be here (which is very rare these days).  They left our house looking as if nothing was even done (and this was a huge and dirty job). This was a costly, long and well thought out change for us and we interviewed no less than 5 other plumbers from all over Nassau County. We are SO happy we chose them.  I would recommend them to anyone and wouldn't hesitate to call them in the future.  Thank you Powersmith!"
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+9

Recommended by80%of homeowners
Avatar for Federal Conservation Corp
Federal Conservation Corp
4.5(
166
)
Energy Audit - For BusinessHome Energy Audit

Serving Commack, NY and surrounding areas

In business since 1979

Free estimates

Credit card accepted

"Joe did a great job on this, our dining room was a add on to connect the original home and the garage and had no insulation and boy in the winter it was unusable as well as the kitchen basically (the best part of the house). Joe came and drilled small holes in the attic floor that they sealed up later to allow for blowing in the insulation. And they cleaned up well. we have a 20 month old but there was nothing left over for the baby to put in her mouth. Joe is great! Our dining room is toasty and the kids can play in there year-round Plus they are were less than half of the expensive "efficiency" guys PSEG sent over. Those providers wanted to charge $10,000+ for basically the same job."
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+1

Recommended by91%of homeowners
Avatar for JVR Plumbing and Heating
JVR Plumbing and Heating
5.0(
8
)
Energy Audit - For BusinessHome Energy Audit

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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Recommended by100%of homeowners
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Energy Efficiency Auditing questions, answered by experts

Motion-sensor lights use one watt while on standby and five watts while turned on. They’re usually on for one hour over a 24-hour period, bringing the total wattage to about 28 watts per day. LED lights use around 6.5 to 8 watts while on. If you leave an LED light on all night, with night ranging from 10 to 14 hours, you’re looking at using 65 to 112 watts a night. You can minimally cut your wattage in half by switching to a motion-sensor light.

Energy-efficient windows are judged on their performance according to a few different factors, including heat transfer, air leakage, light transference, and condensation resistance. If you're unsure whether a window is energy-efficient, look for an ENERGY STAR® label from the U.S. Environmental Protection Agency (EPA). If various products, including windows, meet energy-efficiency standards set by the federal government, the EPA issues this label to help consumers identify energy-efficient products.

To determine the right size generator for your house, you should calculate the total wattage of the appliances and devices you want to power during an outage. List all essential items, note their start-up wattages, and add them together.

Here are some typical wattage requirements for common appliances:

  • Refrigerator: 600 watts

  • Large dehumidifier: 700 watts

  • Large window air conditioner: 1,400 watts

  • Water heater: 3,000 to 4,500 watts

  • Electric furnace: 5,000 to 25,000 watts

A 7,500-watt generator might be sufficient for essentials like a refrigerator, freezer, well pump, and lighting circuits. However, for high-demand items like a water heater or furnace, a whole-home generator is a better choice. A portable generator may be enough if you only need to power a few critical items.

While home square footage can offer a rough estimate, it is not always a reliable indicator. For reference, here are some typical generator sizes based on square footage:

  • 1,000 sq ft: 6–9 kW

  • 1,500 sq ft: 7–10 kW

  • 2,000 sq ft: 10–14 kW

  • 2,500 sq ft: 12–16 kW

  • 3,000 sq ft: 16–20 kW+

For the most accurate sizing, consult a professional who can calculate your home's peak and average power consumption and recommend the optimal generator.

There are a couple of ways you can save on the cost of your home energy audit. First, find out if you qualify for programs like the Department of Energy’s Weatherization Assistance Program for low-income households. Next, check with your local utility company to find out if you qualify for any local rebate programs to offset the cost of this helpful service.

A home energy audit costs about $420 on average, with prices ranging from $100 to $2,250 or more. The final cost depends on factors like your home's size, location, the thoroughness of the audit, and the specific tests performed. A basic Level 1 walk-through inspection typically costs between $150 and $200, while a comprehensive Level 3 audit with detailed testing and a report costs around $900. Homeowners may be able to use the 2022 Inflation Reduction Act’s Energy Efficient Home Improvement credit to cover up to $150 of the audit cost.

Costs for common individual tests include:

  • Blower door test: $350

  • Duct testing: $100

  • HERS test: $375

  • HERS certification: $200

  • Infrared imaging: $200

The Commack, NY homeowners’ guide to energy efficiency auditing services

From average costs to expert advice, get all the answers you need to get your job done.