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  • Verified reviews icon12
    Verified energy efficiency auditing services reviews

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"These guys are complete rip-offs!!! I got two other estimates for the replacement of a service cable. They were $500.00 and $700.00. Gen3's price... $4100.00 It took an inordinate amount of phone calls, texts, and emails to get an appointment for an estimate. Then they did not bother to send it to me. I had to call back for the estimate. These guys are the worst, most dishonest operators I have ever seen. They are 8 times more expensive than every one else. THINK ABOUT IT..... 800% more than the competition. Do not call these guys. OBVIOUSLY A DUMB GUY that thinks the public is STUPID. Don't trust them!!!!!! CROOKS"

Steve S on November 2025

GEN3 is Your Friendly Neighborhood Home Expert, serving Philadelphia and the surrounding areas for 25 years. Give us a call for all of your electrical, heating & cooling and water heater needs!

"These guys are complete rip-offs!!! I got two other estimates for the replacement of a service cable. They were $500.00 and $700.00. Gen3's price... $4100.00 It took an inordinate amount of phone calls, texts, and emails to get an appointment for an estimate. Then they did not bother to send it to me. I had to call back for the estimate. These guys are the worst, most dishonest operators I have ever seen. They are 8 times more expensive than every one else. THINK ABOUT IT..... 800% more than the competition. Do not call these guys. OBVIOUSLY A DUMB GUY that thinks the public is STUPID. Don't trust them!!!!!! CROOKS"

Steve S on November 2025


Old Skool HVAC,LLC

4.70(
10
)
Approved Pro

Old Skool HVAC,LLC

4.70(
10
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
45 local quotes requested

I service ALL makes and models of heating equipment. Oil, gas/propane, heat pumps, water heaters, boilers (hot water and steam) and refrigeration equipment. I do both residential and commercial work. All work comes with warranties. Licensed and insured. PA098480 Oil furnace/boiler cleaning $159.00, Gas furnace clean/tune-up $ 69.00 Heat pump clean/tune-up $ 79.00 Military, Senior, Public service(Fire/Police) Discounts NO ADDED OVERTIME OR WEEKEND RATES....EVER!!! Same price any time. Any day. Including holidays. 30 years' experience !!!! FREE estimates on new equipment replacements FREE 2nd opinions 302-669-9167

"They were professional, and they did a very well job."

Richard M on June 2022

I service ALL makes and models of heating equipment. Oil, gas/propane, heat pumps, water heaters, boilers (hot water and steam) and refrigeration equipment. I do both residential and commercial work. All work comes with warranties. Licensed and insured. PA098480 Oil furnace/boiler cleaning $159.00, Gas furnace clean/tune-up $ 69.00 Heat pump clean/tune-up $ 79.00 Military, Senior, Public service(Fire/Police) Discounts NO ADDED OVERTIME OR WEEKEND RATES....EVER!!! Same price any time. Any day. Including holidays. 30 years' experience !!!! FREE estimates on new equipment replacements FREE 2nd opinions 302-669-9167

"They were professional, and they did a very well job."

Richard M on June 2022


Avatar for RSS Solar

RSS Solar

No reviews yet

RSS Solar

No reviews yet
Free onsite estimate

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.

We make solar simple-- We are dedicated to making solar energy affordable and accessible to everyone-- with ZERO upfront costs.* Your home can become its own tiny power station and generate plenty of reliable energy, all while reducing your electricity bill. Plus, it doesn't hurt that your greener lifestyle will help your state achieve its renewable energy goals.



Avatar for Power Marketing Group, LLC

Power Marketing Group, LLC

5.00(
6
)

Power Marketing Group, LLC

5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Are you looking to save money on your energy bill? Power Marketing Group, LLC is your licensed energy broker and solar dealer in PA and NJ. In business since 2011, working with energy suppliers in deregulated markets to bring various energy products to residential and commercial customers. Our management team has a combined 50+ years of experience in the energy industry. We deliver products directly to consumers with a professional and personal touch, and we provide our customers choices with low rates, price protection, renewable power, solar incentives, rewards programs, and many other benefits of the alternative energy market. We have partnered with the best solar providers in the country to offer our customers new ways they can control their energy costs, take advantage of Federal and State incentives, along with helping improve the environment by utilizing the power of the Sun!

"It went great"

Nelson K on August 2022

Are you looking to save money on your energy bill? Power Marketing Group, LLC is your licensed energy broker and solar dealer in PA and NJ. In business since 2011, working with energy suppliers in deregulated markets to bring various energy products to residential and commercial customers. Our management team has a combined 50+ years of experience in the energy industry. We deliver products directly to consumers with a professional and personal touch, and we provide our customers choices with low rates, price protection, renewable power, solar incentives, rewards programs, and many other benefits of the alternative energy market. We have partnered with the best solar providers in the country to offer our customers new ways they can control their energy costs, take advantage of Federal and State incentives, along with helping improve the environment by utilizing the power of the Sun!

"It went great"

Nelson K on August 2022


Energy Saving Construction

No reviews yet

Energy Saving Construction

No reviews yet
6 years of experience

We are a family owned and operated construction company with over 30 years of relevant experience in Southeastern Pennsylvania. Some of our services include weatherization/airsealing, comprehensive energy audits and repairs, insulation, window repairs, general contracting, etc. We have a wide variety of clients ranging from governmental agencies to local utility companies to residential homeowners to our own personal projects and treat everyone with the care and attention we strive to create in our own personal projects.

We are a family owned and operated construction company with over 30 years of relevant experience in Southeastern Pennsylvania. Some of our services include weatherization/airsealing, comprehensive energy audits and repairs, insulation, window repairs, general contracting, etc. We have a wide variety of clients ranging from governmental agencies to local utility companies to residential homeowners to our own personal projects and treat everyone with the care and attention we strive to create in our own personal projects.


"My toilet was leaking. They responded super fast and offer emergency hours. Super nice, honest work, would hire again."

Brian J on November 2022

Hertler Plumbing & HVAC Provides plumbing heating and air conditioning with clean, prompt professional service

"My toilet was leaking. They responded super fast and offer emergency hours. Super nice, honest work, would hire again."

Brian J on November 2022


Avatar for Core Value of Lancaster

Core Value of Lancaster

5.00(
8
)

Core Value of Lancaster

5.00(
8
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Core Value Duct Cleaning & Restoration is a veteran-owned business based Lancaster, Pennsylvania servicing a 50+ mile radius. Our mission is to offer the most technologically advanced services on the market for energy efficiency and indoor air quality to include; Aeroseal, Duct Armor, NADCA certified Air Duct Cleaning and more! Green-conscious company, committed to contributing to our community and operating on three Core Values. - Integrity, in the way we work - Service, the why we work - Excellence, to our quality of work

"Great Juan an Henry did a terrific job"

Bruce G on June 2021

Core Value Duct Cleaning & Restoration is a veteran-owned business based Lancaster, Pennsylvania servicing a 50+ mile radius. Our mission is to offer the most technologically advanced services on the market for energy efficiency and indoor air quality to include; Aeroseal, Duct Armor, NADCA certified Air Duct Cleaning and more! Green-conscious company, committed to contributing to our community and operating on three Core Values. - Integrity, in the way we work - Service, the why we work - Excellence, to our quality of work

"Great Juan an Henry did a terrific job"

Bruce G on June 2021


Refrigeration Technologies LLC

No reviews yet

Refrigeration Technologies LLC

No reviews yet

Manufacture ArtikControl WIC/WIF; ASHC for use in commercial refrigeration systems. Technology provides optimum energy efficiency using Intelligent Technology in the retrofit of existing boxes.

Manufacture ArtikControl WIC/WIF; ASHC for use in commercial refrigeration systems. Technology provides optimum energy efficiency using Intelligent Technology in the retrofit of existing boxes.


National Energy Partners

No reviews yet

National Energy Partners

No reviews yet

National Energy Partners (NEP) is a solar energy development company dedicated to bringing clean, renewable energy to businesses and residential consumers alike. At the forefront of the solar energy landscape, our passion is in fostering relationships through integrity, knowledge and efficiency. NEP embraces the specific needs and challenges of each project, offering our valued clients the best experience through strategic management, trusted relationships and eco-friendly solar energy solutions. With over 10 years of experience in the solar industry, our portfolio includes over $100 million of projects with more in development.

National Energy Partners (NEP) is a solar energy development company dedicated to bringing clean, renewable energy to businesses and residential consumers alike. At the forefront of the solar energy landscape, our passion is in fostering relationships through integrity, knowledge and efficiency. NEP embraces the specific needs and challenges of each project, offering our valued clients the best experience through strategic management, trusted relationships and eco-friendly solar energy solutions. With over 10 years of experience in the solar industry, our portfolio includes over $100 million of projects with more in development.

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Energy Efficiency Auditing questions, answered by experts

If you have central air conditioning, it’s fine to run your AC all day if that’s what you want—as long as the AC unit is in good condition. But if your AC runs constantly when you don’t want it to, there may be a problem with your system (like the ones we’ve mentioned above). Window AC units and wall air conditioners aren’t as powerful as central AC, so you should only run those kinds of air conditioners for eight to 12 hours at a time.

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.

Setting your AC unit to 78 degrees can, indeed, help you save energy. In fact, according to experts, every degree you turn the unit up could save you between 1% and 3% on your energy bills. That said, turning your unit off entirely while you’re out might actually be less efficient than keeping it on at a higher temperature. Why? The unit will need to work extra hard to cool the house back off again after all those hot hours. 

Fans reduce peak cooling loads, lower air conditioning energy expenses by expediting heat exit, and enhance natural airflow throughout the home.

Yes, these services often increase home value by preventing moisture-related issues and enhancing the usable space in basements or crawlspaces.

The King Of Prussia, PA homeowners’ guide to energy efficiency auditing services

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