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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon30
    Verified energy efficiency auditing services reviews

Verified Reviews for Energy Efficiency Auditing pros in Lansdale, PA

*The Angi rating for Energy Efficiency Auditing companies in Lansdale, 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 Lansdale, 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 15, 2025

Find Energy efficiency auditors in Lansdale

Avatar for H L Bowman

H L Bowman

4.72(
387
)
•Approved Pro

H L Bowman

4.72(
387
)
•Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
2267 local quotes requested

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

Avatar for Horizon Services

Horizon Services

4.31(
1,060
)
•Approved Pro

Horizon Services

4.31(
1,060
)
•Approved Pro
Customers say: Super punctual
36 years of experience
Emergency services offered

Horizon Services is the region’s largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizon Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee. Horizon Services is the Heating Company Your Friends and Neighbors Call to Keep Warm All Winter Long!

"I wouldn’t be writing this Review if one thing would have happened, TALK TO ME. Don’t place the answering service in the position of telling a Customer that the Supervisor has left for the day at 2.45p on a Thursday. Especially when the Horizon repairman had just fried our whole cooling system, including the thermostat!! What started with a bad fan motor in a new AC system that was only 3.5 years old in a $10,000 system, for which we had waited 4 days for the new motor to be installed. Add to that the fact that the repairman told me he would be at our home at 8.30a and didn’t arrive until 11.30a - after having to use a vacation day to wait at home for them to arrive. Then telling me this will be ‘quick’ all I have to do is switch out the motor by mounting it and plugging in the new one. Hours went by, nothing. He comes in to test the thermostat and it is non-responsive. He tells me to get new batteries, which I did. Then asks me, “these are new?” To which I say, ‘of course’ - you watched me take them out of the box. Then he goes out to his truck for the next 1.5hrs, supposedly speaks with his Supervisor and comes in and tells me that he has fried the system. I reply by saying I will be calling a senior person to speak with them. Called 4 times and never spoke with anyone. Each time I waited on hold for an extended period of time. Each time, I was then told by the answering service that someone would call and never did. Then at 2.45p I am told “everyone has left for the day” and no one would be calling. This was a Thursday, I had been home all day and no one would speak with me. We remain without an AC system, no plan, no calls - - nothing!!! If I could rate them a ZERO, I would,"

Scott M on June 2025

Horizon Services is the region’s largest and most well respected plumbing, heating and air conditioning company, with nearly 600 employees serving tens of thousands of homeowners throughout Delaware, Southeastern Pennsylvania, Southern New Jersey, and Northeastern Maryland. After a quarter of a century in business, Horizon Services remains fully committed to setting the industry standard for customer service, installation, and focusing on things that are important to busy homeowners: respect for their time, their home and their property; up-front pricing, and an unconditional 100% money back guarantee. Horizon Services is the Heating Company Your Friends and Neighbors Call to Keep Warm All Winter Long!

"I wouldn’t be writing this Review if one thing would have happened, TALK TO ME. Don’t place the answering service in the position of telling a Customer that the Supervisor has left for the day at 2.45p on a Thursday. Especially when the Horizon repairman had just fried our whole cooling system, including the thermostat!! What started with a bad fan motor in a new AC system that was only 3.5 years old in a $10,000 system, for which we had waited 4 days for the new motor to be installed. Add to that the fact that the repairman told me he would be at our home at 8.30a and didn’t arrive until 11.30a - after having to use a vacation day to wait at home for them to arrive. Then telling me this will be ‘quick’ all I have to do is switch out the motor by mounting it and plugging in the new one. Hours went by, nothing. He comes in to test the thermostat and it is non-responsive. He tells me to get new batteries, which I did. Then asks me, “these are new?” To which I say, ‘of course’ - you watched me take them out of the box. Then he goes out to his truck for the next 1.5hrs, supposedly speaks with his Supervisor and comes in and tells me that he has fried the system. I reply by saying I will be calling a senior person to speak with them. Called 4 times and never spoke with anyone. Each time I waited on hold for an extended period of time. Each time, I was then told by the answering service that someone would call and never did. Then at 2.45p I am told “everyone has left for the day” and no one would be calling. This was a Thursday, I had been home all day and no one would speak with me. We remain without an AC system, no plan, no calls - - nothing!!! If I could rate them a ZERO, I would,"

Scott M on June 2025

Avatar for Christian Home Services Heating, Cooling, Plumbing & Electrical

Christian Home Services Heating, Cooling, Plumbing & Electrical

4.51(
209
)
•Approved Pro

Christian Home Services Heating, Cooling, Plumbing & Electrical

4.51(
209
)
•Approved Pro
Customers say: Super punctual
36 years of experience
Free onsite estimate

Christian Heating, Cooling, & Plumbing has been a leading service provider in the Bucks County and surrounding areas since 1989. We've served thousands of customers providing each customer with expert technicians, honest pricing, prompt and friendly service, and personalized advice & recommendations on your heating & cooling or plumbing systems tailored to your requirements. We pride ourselves on our high-level of personalized customer service to ensure that your home environment is as safe and comfortable as possible. We offer service and installation of HVAC systems from Carrier & Daikin. Our expert service technicians receive ongoing training weekly to ensure they are able to fix any issue our homeowners may encounter.

"4/29/23 Christian tech checks our our home AC. He notes the cooling coils are rusty, a source of coolant leak, and the system, at 14 years age, is near it's end of life. He also noted some mold in the blower blades, which isn't easily seen. He put pressure gauges on the system at outside valves and reported coolant pressure was good. System was test run successfully. He sold us a 1 year maintenance agreement. 6/2/23 outside temp reaches 93 deg. We turned on the AC and only warm air came out. Outside compressor WOULD NOT RUN. We had Christian rep come out. He said all coolant had leaked out. He offered a leak test with dye for $510, or replace the "rusted" coil for at least $3681. We declined. A Christian salesman later quoted a full system replacement. We had another AC company investigate. He found the outside valves HAND TIGHT ONLY, which would allow coolant leak. We had him pressure test with nitrogen over a 4 day weekend, which he charged ONLY a $149 service call. Starting psi over 300. Psi after 4 days over 300 psi. We had him recharge the system. He noted that coils are rusty within 6 months from new. We then had him recharge the system. Total costs with labor & visits both companies $1,595. 7/11/23 Date writing this review. AC working well, same electric power usage for air temps as prior years. Christian seems more interested in selling new systems. Giving benefit of doubt, their 4/29 "technician" was incompetent."

Lawrence S on November 2023

Christian Heating, Cooling, & Plumbing has been a leading service provider in the Bucks County and surrounding areas since 1989. We've served thousands of customers providing each customer with expert technicians, honest pricing, prompt and friendly service, and personalized advice & recommendations on your heating & cooling or plumbing systems tailored to your requirements. We pride ourselves on our high-level of personalized customer service to ensure that your home environment is as safe and comfortable as possible. We offer service and installation of HVAC systems from Carrier & Daikin. Our expert service technicians receive ongoing training weekly to ensure they are able to fix any issue our homeowners may encounter.

"4/29/23 Christian tech checks our our home AC. He notes the cooling coils are rusty, a source of coolant leak, and the system, at 14 years age, is near it's end of life. He also noted some mold in the blower blades, which isn't easily seen. He put pressure gauges on the system at outside valves and reported coolant pressure was good. System was test run successfully. He sold us a 1 year maintenance agreement. 6/2/23 outside temp reaches 93 deg. We turned on the AC and only warm air came out. Outside compressor WOULD NOT RUN. We had Christian rep come out. He said all coolant had leaked out. He offered a leak test with dye for $510, or replace the "rusted" coil for at least $3681. We declined. A Christian salesman later quoted a full system replacement. We had another AC company investigate. He found the outside valves HAND TIGHT ONLY, which would allow coolant leak. We had him pressure test with nitrogen over a 4 day weekend, which he charged ONLY a $149 service call. Starting psi over 300. Psi after 4 days over 300 psi. We had him recharge the system. He noted that coils are rusty within 6 months from new. We then had him recharge the system. Total costs with labor & visits both companies $1,595. 7/11/23 Date writing this review. AC working well, same electric power usage for air temps as prior years. Christian seems more interested in selling new systems. Giving benefit of doubt, their 4/29 "technician" was incompetent."

Lawrence S on November 2023

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

Timber Arts Pruning and Removal

No reviews yet

Timber Arts Pruning and Removal

No reviews yet
Emergency services offered

Small buisness handling monster jobs. Whether you have 100ft tree, a property that hasn't been maintained for 10 years, or a storm rolls through. We specialize in work from preventative maintenance and pruning to emergency call out and complete removal.

Small buisness handling monster jobs. Whether you have 100ft tree, a property that hasn't been maintained for 10 years, or a storm rolls through. We specialize in work from preventative maintenance and pruning to emergency call out and complete removal.

Avatar for Advent Air Conditioning And Heating

Advent Air Conditioning And Heating

5.00(
11
)

Advent Air Conditioning And Heating

5.00(
11
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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

Avatar for Hertler Plumbing & HVAC

Hertler Plumbing & HVAC

5.00(
3
)

Hertler Plumbing & HVAC

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

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

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

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

Installing weather stripping or upgrading to insulated panels can improve efficiency.

Yes, with features like LED lighting and variable speed controls for efficiency.

R-value is calculated by dividing the thickness of an insulation material by its thermal conductivity. The material's composition and density influence thermal conductivity. Materials with lower conductivity values provide better insulation. The higher the R-value, the better the material is at insulating, helping homeowners select insulation that meets the energy needs of their climate and home layout.

After you receive your audit and report, review the findings and determine which of the prescribed changes you want to make to improve your home’s energy efficiency. Start by contacting the type of professionals recommended by the auditor who can help you remedy the issues discovered during the audit. Prioritize the projects by urgency, importance, and budget. Then, gather estimates from several professionals, remembering to verify any necessary licensing and experience information.

Costs depend on the property size, audit complexity, and whether additional testing (e.g., blower door) is included.

The Lansdale, 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.

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