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TRUSTED BY DOVER, NJ HOMEOWNERS

  • Average homeowner rating star icon4.2
    Average homeowner rating
  • Verified reviews icon16
    Verified energy efficiency auditing services reviews

Top-Rated Energy efficiency auditors in Dover - Updated Nov 2026

Avatar for Ciel Power, LLC
Ciel Power, LLC
4.5(
11
)
Home Energy Audit

Serving Dover, NJ and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"I was very pleased with the audit which helped to identify needed fixes. As a result, last winter was a much more pleasant experience at home and we used less propane"
Ciel Power LLC | Offices
Ciel Power LLC | Offices
Ciel Power LLC | Offices
Ciel Power LLC | Offices
Ciel Power LLC | Offices

+43

Response time1 day
Recommended by100%of homeowners
Avatar for Acorn Home Improvements, Inc.
Acorn Home Improvements, Inc.
4.2(
94
)
Home Energy Audit

Serving Dover, NJ and surrounding areas

Approved

In business since 1986

Free estimates

Warranties offered

"John was very friendly and detailed when doing and explaining the audit. A quote was provided a couple weeks later and they were not pushy at all to get the work contracted."
Siding and Blown-in Cellulose Insulation Wayne
Insulation
Completed Wayne
Completed Wayne
CertainTeed - Granite Grey

+10

Response time1 day
Response rate91%
Recommended by85%of homeowners
Avatar for Strictly Business Home and Commercial Inspections
Strictly Business Home and Commercial Inspections
4.4(
59
)
Energy Audit - For BusinessHome Energy Audit

Serving Dover, NJ and surrounding areas

In business since 1984

Free estimates

Credit card accepted

"Ira was cordial and professional. He has practical experience and knowledge of residential energy audits. He was able to provide useful suggestions but not definitive solutions to issues. That may have been due to inaccessible interior walls. I am frustrated that a full written report that had been promised still has not been produced six weeks later."
Response time7 hrs
Recommended by77%of homeowners
Avatar for K Hanrahan Enterprises Inc
K Hanrahan Enterprises Inc
4.8(
42
)
Energy Audit - For BusinessHome Energy Audit

Serving Dover, NJ and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"We had a whole house Generac generator installed by K Hanrahan in August 2021. We were beyond pleased with their prompt and efficient service. They handled the whole process from planning to permitting and installation. Everyone in their company was efficient and friendly. I highly recommend them."
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+5

Recommended by92%of homeowners
Avatar for Eco Green Solutions
Eco Green Solutions
5.0(
28
)
Energy Audit - For BusinessHome Energy Audit

Serving Dover, NJ and surrounding areas

In business since 1987

Free estimates

Emergency services offered

"I hired Eco Green because I know people that have used them with no complaints. They were on the ball with everything. Fast, informative and ready to help. I had a hose break free from my washer and it flooded my office with 2 inches of water, the unit below us and the 3 floors below them. Within hours their team was in my unit, the water was up, the dehumidifier and industrial fans were running. Hours later, things were dry to the touch. By the next day, the floors didn't squish. We have no mold, no funny odors and they were able to save my wood floors by acting so quickly. If you value massive experience and the right tools for the job, Eco Green is your last call.
"
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Recommended by100%of homeowners
Avatar for Federal Conservation Corp
Federal Conservation Corp
4.5(
166
)
Energy Audit - For BusinessHome Energy Audit

Serving Dover, NJ and surrounding areas

In business since 1979

Free estimates

Credit card accepted

"The contractor came even earlier than expected and spent over 2 hours looking at my home. Needless to say, his suggestions to improve energy efficiency were numerous, some more costly than others, some things that I could do on my own. The estimate I got from this company was in line with another insulation company's estimate. I'm uncertain which of the two companies I'd go with, though. The $25 charge for an estimate was more than I'd usually pay for an estimate (ha) but he had lots of information and didn't mind all of my many questions. A good place to start if you're wanting information.
"
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+1

Recommended by90%of homeowners
Avatar for Mark Group
Mark Group
4.4(
467
)
Energy Audit - For BusinessHome Energy Audit

Serving Dover, NJ and surrounding areas

In business since 1974

Free estimates

Credit card accepted

"Person who visited was very polite and noted that what I purchased was likely not something that would meet my expectations.  I wanted an energy audit, how my systems could be improved in home, lighting, heating, insulation and air conditioners.  What I got was a list of things they could work on and the price to do that work.  The work list in no way was considered an energy audit, rather it was a punch list of things I could do based on their visual inspection.  I did not have a comparison of work and benefit/savings calculation.  There was no checklist of inefficiencies and how that translated into energy losses. For example, multiple hi hat lights in house, they spoke about boxing and insulating a few, less than 10, when I have almost 90 in house.  Overall I was disappointed, the tech who came said the offering needed to be better presented prior to start of work."
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+14

Recommended by83%of homeowners
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Energy Efficiency Auditing FAQs, answered by experts

Dehumidifiers typically use 300 to 700 watts of electricity per hour, whereas portable dehumidifiers use about 40 watts per hour. The exact amount of electricity your dehumidifier will generate depends on its capacity and energy efficiency. Generally, higher-capacity dehumidifiers generate more electricity than lower-capacity units, but they also usually have better energy efficiency over the long run.

The number one culprit of high energy bills is older appliances, especially fridges and freezers that are left on all the time. These two appliances tend to last a long time, which is good, but it also means that newer models are usually significantly more energy-efficient due to upgraded technology. The second most common reason for a high bill is heating and air conditioning.

When installing a new furnace, it's a good time to consider other projects that can enhance your home's energy efficiency. A great first step is to get a home energy audit, which will identify areas for improvement. Common recommendations include sealing or replacing windows and adding insulation to the attic. These upgrades can help you save money on monthly utility costs. You might also consider installing a smart thermostat to make heating your home more convenient and efficient.

A good SEER rating for an HVAC system is typically between 15 and 20. However, minimum requirements vary by location; HVAC systems in northern states must have at least a 14 SEER rating, while those in southern states need a minimum of 15. For the highest possible efficiency, look for units with a SEER rating of 21 or higher. It's important to remember that a SEER rating represents the maximum efficiency a unit can achieve, not the level at which it will operate at all times.

Services by electricians can quickly get expensive, but there are a few ways you can save money in the process:

  • Bundle multiple jobs done at the same time to save on trip fees or flat fees for individual projects.

  • Get at least three quotes for service to find the best deal.

  • Buy fixtures, switches, outlets, and other materials beforehand to avoid product markup.

  • If you feel comfortable with it, have an apprentice or journeyman complete the work under the supervision of a master electrician. These electricians in training tend to charge less per project.

The Dover, NJ homeowners’ guide to energy efficiency auditing services

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