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Verified Reviews for Energy Efficiency Auditing pros in Harleysville, PA
*The Angi rating for Energy Efficiency Auditing companies in Harleysville, PA 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 Harleysville, PA 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 November 26, 2025
Find Energy efficiency auditors in Harleysville
Old Skool HVAC,LLC
Old Skool HVAC,LLC
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
"Very bad customer service they do not return your calls . I DO NOT RECOMMEND USING THIS COMPANY YOU WILL BE SORRY. BRANDON IS THE WORST.."
Joe G on December 2023
NA
"Very bad customer service they do not return your calls . I DO NOT RECOMMEND USING THIS COMPANY YOU WILL BE SORRY. BRANDON IS THE WORST.."
Joe G on December 2023

RSS Solar
RSS Solar
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.

Power Marketing Group, LLC
Power Marketing Group, LLC
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

Advent Air Conditioning And Heating
Advent Air Conditioning And Heating
We here at Advent Air are family owned and operated; we are here to address all your heating and air conditioning needs. We want to meet and or exceed your expectations and leave you completely satisfied. Ask us about our Senior, Military and Police discount.
"Professional advice and service no one else could provide. Honest work at customer best interest"
Tatyana S on July 2023
We here at Advent Air are family owned and operated; we are here to address all your heating and air conditioning needs. We want to meet and or exceed your expectations and leave you completely satisfied. Ask us about our Senior, Military and Police discount.
"Professional advice and service no one else could provide. Honest work at customer best interest"
Tatyana S on July 2023

Hertler Plumbing & HVAC
Hertler Plumbing & HVAC
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
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
National Energy Partners
National Energy Partners
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.
Rebuilder Inspectors
Rebuilder Inspectors
Rebuilder Inspectors is a Rebuilder Group, Inc business whose background in building science and energy efficiency supports a robust understanding of the built environment.
Rebuilder Inspectors is a Rebuilder Group, Inc business whose background in building science and energy efficiency supports a robust understanding of the built environment.

NP Energy Inc.
NP Energy Inc.
We specialize in all your insulation needs! Closed Cell Spray Foam, Injection Foam, Blown In Insulation, Closed cavity dense packing and sound proofing, Air Sealing, Batting Insulation and Removal of Existing Insulation. We are family owned and operated and have over 25 years of experience! We have the highest standards in the industry! Customer satisfaction guaranteed!
"Craig came out to provide an estimate within a week of contact. He Surveyed the attic and gave recommendations on other considerations eg sealing recessed lighting. He walked me through the process and science. I accepted the quote and contractors were on the scene within 3 days! Completed the job, despite high temperatures. Cleaned up well afterwards. Really notice the difference already. Great job!"
Ruth H on July 2019
We specialize in all your insulation needs! Closed Cell Spray Foam, Injection Foam, Blown In Insulation, Closed cavity dense packing and sound proofing, Air Sealing, Batting Insulation and Removal of Existing Insulation. We are family owned and operated and have over 25 years of experience! We have the highest standards in the industry! Customer satisfaction guaranteed!
"Craig came out to provide an estimate within a week of contact. He Surveyed the attic and gave recommendations on other considerations eg sealing recessed lighting. He walked me through the process and science. I accepted the quote and contractors were on the scene within 3 days! Completed the job, despite high temperatures. Cleaned up well afterwards. Really notice the difference already. Great job!"
Ruth H on July 2019
The Harleysville, 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.
•Discover the average home energy audit cost, what impacts pricing, and how to save money on your audit. Get transparent, expert-backed cost info for homeowners.

A home energy audit is a detailed write-up of how to lower your utility bills and increase your comfort level. Find out if they’re worth the cost.
•Get a detailed breakdown of thermal imaging home inspection costs, including average prices, cost factors, and tips to help homeowners budget.

Home energy audits can identify ways to make your home more energy-efficient. Learn whether an energy audit is a good investment for your home.
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