
Get matched with top energy efficiency auditors in Thorndale, PA
There are 6 highly-rated local energy efficiency auditors.
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Verified Reviews for Energy Efficiency Auditing pros in Thorndale, PA
*The Angi rating for Energy Efficiency Auditing companies in Thorndale, 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 Thorndale, 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 19, 2025
Find Energy efficiency auditors in Thorndale

Wm. Henderson Plumbing, Heating & Cooling Inc.
Wm. Henderson Plumbing, Heating & Cooling Inc.
Since 1977, Wm. Henderson Plumbing, Heating & Cooling Inc. has been providing quality plumbing, heating and cooling service throughout Delaware County and the Main Line. With a fleet of fully-stocked vehicles dispatched from our Broomall headquarters, we strive to provide our customers with prompt, professional service in the plumbing, heating and cooling fields. Wm. Henderson Plumbing, Heating & Cooling Inc. is a member of the Philadelphia Suburban Association of Plumbing Contractors, National Association of Plumbing Heating, Cooling Contractors, Philadelphia-Suburban Gas Exchange, Small Business Association of Delaware County and the Marple Business & Professional Association. Operating a dependable service business requires organization, competent management and professional technical skills. All service technicians have direct communication between the office and customers due to the state-of-the-art communication provided to each technician. We are dedicated to complete customer satisfaction. Our offices are staffed and open weekdays from 7:30 am to 6:30 pm, and on Saturdays from 8:00 am to 1:00 pm. In the event of an emergency, we are always available to you 24 hours a day, 7 days a week. We quote a price before proceeding with any work. We charge by the job, not by the hour, and all work is guaranteed. We are an award-winning company, but we couldn't win awards without happy customers. You are our priority! Additional DBAs - William Henderson Plumbing & Heating Cooling Services, Wm Henderson Plumbing & Heating Inc, Wm Henderson Plumbing Heating Cooling Service.
"Repair Service to Fix Gas Boiler - WM Henderson first sends out a tech who is not familiar with gas boilers and admits there is an issue but does not know how to diagnose it. I had to pay $89 for this. Instead of having the right person come out, I had to to actively call again to get someone else to come out. The 2nd tech diagnosed the issue, but wants to charge me the same $89 that I already paid. - and quotes me $380 for the repair - and has to order the part. I agree and then call back the next day to confirm part is on order - and they tell me the charge is $1,015. I asked to speak to a manager to discuss, and no one is available and no one calls me back. I bought the replacement part from a supply where house (confirming it works with my make/model of boiler) and it cost me $165. I have had other scheduling issues with them as well. Don't use them!!!!!!!!"
Jerry W on December 2024
Since 1977, Wm. Henderson Plumbing, Heating & Cooling Inc. has been providing quality plumbing, heating and cooling service throughout Delaware County and the Main Line. With a fleet of fully-stocked vehicles dispatched from our Broomall headquarters, we strive to provide our customers with prompt, professional service in the plumbing, heating and cooling fields. Wm. Henderson Plumbing, Heating & Cooling Inc. is a member of the Philadelphia Suburban Association of Plumbing Contractors, National Association of Plumbing Heating, Cooling Contractors, Philadelphia-Suburban Gas Exchange, Small Business Association of Delaware County and the Marple Business & Professional Association. Operating a dependable service business requires organization, competent management and professional technical skills. All service technicians have direct communication between the office and customers due to the state-of-the-art communication provided to each technician. We are dedicated to complete customer satisfaction. Our offices are staffed and open weekdays from 7:30 am to 6:30 pm, and on Saturdays from 8:00 am to 1:00 pm. In the event of an emergency, we are always available to you 24 hours a day, 7 days a week. We quote a price before proceeding with any work. We charge by the job, not by the hour, and all work is guaranteed. We are an award-winning company, but we couldn't win awards without happy customers. You are our priority! Additional DBAs - William Henderson Plumbing & Heating Cooling Services, Wm Henderson Plumbing & Heating Inc, Wm Henderson Plumbing Heating Cooling Service.
"Repair Service to Fix Gas Boiler - WM Henderson first sends out a tech who is not familiar with gas boilers and admits there is an issue but does not know how to diagnose it. I had to pay $89 for this. Instead of having the right person come out, I had to to actively call again to get someone else to come out. The 2nd tech diagnosed the issue, but wants to charge me the same $89 that I already paid. - and quotes me $380 for the repair - and has to order the part. I agree and then call back the next day to confirm part is on order - and they tell me the charge is $1,015. I asked to speak to a manager to discuss, and no one is available and no one calls me back. I bought the replacement part from a supply where house (confirming it works with my make/model of boiler) and it cost me $165. I have had other scheduling issues with them as well. Don't use them!!!!!!!!"
Jerry W on December 2024

H L Bowman
H L Bowman
HL Bowman has been in the same location for 38 years and owned by the same family for over 65 years. HL Bowman is a non commission based company. HL Bowman employees will never upsell you a product you don't need. Dennis and Bryan Enders and his family have deep roots in the Harrisburg community. After 65 years Dennis and family stay committed to giving the community the best possible service and product to fit their needs. HL Bowman has won Angie's List super service award every year.
"Exceptional service from the initial diagnosis to repair, superb team. I appreciated everyone's thoroughness, willingness and honest business tactics. They provided a safe environment for me to ask questions and we explored all options. Ultimately, Joshua, sealed the deal by being caring and understanding. His expertise showed but most importantly his work ethics and integrity was felt. Many thanks to the whole team Brett, Joshua, Jason and Peter delivered Top notch service. Lastly, the communication was A+. Loved receiving text messages with photo id's, true professionals. Highly recommend! You won't be disappointed!"
Lena W on August 2025
HL Bowman has been in the same location for 38 years and owned by the same family for over 65 years. HL Bowman is a non commission based company. HL Bowman employees will never upsell you a product you don't need. Dennis and Bryan Enders and his family have deep roots in the Harrisburg community. After 65 years Dennis and family stay committed to giving the community the best possible service and product to fit their needs. HL Bowman has won Angie's List super service award every year.
"Exceptional service from the initial diagnosis to repair, superb team. I appreciated everyone's thoroughness, willingness and honest business tactics. They provided a safe environment for me to ask questions and we explored all options. Ultimately, Joshua, sealed the deal by being caring and understanding. His expertise showed but most importantly his work ethics and integrity was felt. Many thanks to the whole team Brett, Joshua, Jason and Peter delivered Top notch service. Lastly, the communication was A+. Loved receiving text messages with photo id's, true professionals. Highly recommend! You won't be disappointed!"
Lena W on August 2025
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

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

Core Value of Lancaster
Core Value of Lancaster
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
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.

USA Alarm Service, Inc
USA Alarm Service, Inc
USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.
USA Alarm is a national company that has more than two decades of experience and an award winning command center that protects more than 700,000 homes and businesses through the United States, 24 hours a day and 7 days a week. We have offices located throughout the US, with two main offices in Indianapolis, Indiana and Post Falls, Idaho.
All Trades Combined, Inc.
All Trades Combined, Inc.
We are general mechanical electrical contractors specializing in residential and commercial applications your one stop shop for all your needs
"We hired this contractor almost a year ago to do various projects. The work was supposed to be finished in 10 days according to the contract. We are here almost a year later and there is still work that is unfinished. I paid Martin before all of the work was completed, and I can’t get ahold of him to finish the work now. The pipe still hasn’t been cut, and there is still a huge piece of concrete in our side yard. I’m not sure what to do now."
Franklyn R on August 2021
We are general mechanical electrical contractors specializing in residential and commercial applications your one stop shop for all your needs
"We hired this contractor almost a year ago to do various projects. The work was supposed to be finished in 10 days according to the contract. We are here almost a year later and there is still work that is unfinished. I paid Martin before all of the work was completed, and I can’t get ahold of him to finish the work now. The pipe still hasn’t been cut, and there is still a huge piece of concrete in our side yard. I’m not sure what to do now."
Franklyn R on August 2021
The Thorndale, 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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