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Average homeowner rating star icon4.4
Average homeowner rating
Verified reviews icon13
Verified energy efficiency auditing services reviews

Energy efficiency auditors in Ferndale

Avatar for Atlas Home Energy Solutions
Atlas Home Energy Solutions
1745 Dorsey Rd
4.69(
13
)
Approved Pro
Atlas Home Energy Solutions
1745 Dorsey Rd
4.69(
13
)
Approved Pro
Customers say: Super punctual
44 local quotes requested
16 years of experience

Atlas Home Energy Solutions is committed to providing the highest quality home energy improvements to homeowners interested in reducing their utility bills and improving the comfort of their home year round. We also qualify energy efficiency and comfort improvements in existing homes for significant utility rebates and federal tax credits, up to $10,000.00! Customer Satisfaction is our number one priority and we promise that we can make a real impact in your home in a way that keeps you happy every step of the way.

"5 stars!! Their pricing was the most competitive, and their communication was outstanding! Had our THOW insulated with closed cell spray foam and they did an awesome job from the very beginning of the process until the end. Would highly recommend!"

Shannon P on March 2023

Atlas Home Energy Solutions is committed to providing the highest quality home energy improvements to homeowners interested in reducing their utility bills and improving the comfort of their home year round. We also qualify energy efficiency and comfort improvements in existing homes for significant utility rebates and federal tax credits, up to $10,000.00! Customer Satisfaction is our number one priority and we promise that we can make a real impact in your home in a way that keeps you happy every step of the way.

"5 stars!! Their pricing was the most competitive, and their communication was outstanding! Had our THOW insulated with closed cell spray foam and they did an awesome job from the very beginning of the process until the end. Would highly recommend!"

Shannon P on March 2023


Avatar for Home Energy Saving Solutions
Home Energy Saving Solutions
5268G Nicholson Ln
4.97(
90
)
Approved Pro
Home Energy Saving Solutions
5268G Nicholson Ln
4.97(
90
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 years of experience

As a Maryland certified Home Performance with Energy Star contractor, we focus on making homes efficient and comfortable. Our energy audits and energy efficiency improvements usually qualify for generous state incentives and rebates through Pepco, BGE, and Potomac Edison. Mo is the owner/operator at Home Energy Saving Solutions. He has a deep depth of knowledge and experience gained from well over 1000 energy audits. Participation in numerous industry groups and conferences further enhance the expertise brought to each home energy audit. We will inspect your entire home as a system and evaluate energy loss and comfort issues using advanced diagnostic equipment. At the conclusion of the audit you will be presented with a comprehensive report detailing all findings and solutions, along with a payback period for repair and retrofit options.

"Mohammed handled our project—sealing and insulating our attic. He was very knowledgeable about the best way to accomplish the task in an older home such as ours; and he also ensured that our project qualified for relevant energy rebates. He was professional and courteous in answering all our questions and completed the project in one day. We highly recommend HESS and Mohammed El-Goul."

Janet B on August 2024

As a Maryland certified Home Performance with Energy Star contractor, we focus on making homes efficient and comfortable. Our energy audits and energy efficiency improvements usually qualify for generous state incentives and rebates through Pepco, BGE, and Potomac Edison. Mo is the owner/operator at Home Energy Saving Solutions. He has a deep depth of knowledge and experience gained from well over 1000 energy audits. Participation in numerous industry groups and conferences further enhance the expertise brought to each home energy audit. We will inspect your entire home as a system and evaluate energy loss and comfort issues using advanced diagnostic equipment. At the conclusion of the audit you will be presented with a comprehensive report detailing all findings and solutions, along with a payback period for repair and retrofit options.

"Mohammed handled our project—sealing and insulating our attic. He was very knowledgeable about the best way to accomplish the task in an older home such as ours; and he also ensured that our project qualified for relevant energy rebates. He was professional and courteous in answering all our questions and completed the project in one day. We highly recommend HESS and Mohammed El-Goul."

Janet B on August 2024


Avatar for Heating & Cooling Certified Mechanic
Heating & Cooling Certified Mechanic
Po
4.97(
30
)
Approved Pro
Heating & Cooling Certified Mechanic
Po
4.97(
30
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
125 local quotes requested

With over a decade of experience, Heating & Cooling Certified Mechanic is professionally licensed and dedicated to ensure your HVAC service/install exceeds your expectations! We specialize in HVAC services, repairs and we guarantee your satisfaction! We will not leave until the job is done right! We pride ourselves on the quality of work we provide, while delivering great customer service! Call or click for your FREE estimate today! HVAC, Water Heater, Air Quality System Installations, Repairs & More Need repair? Call Today, Need Installation or a 2nd Opinion? Call Today. 24 Hour Service CALL TODAY! CALL TONIGHT!

"Everything went very well. They were very professional and cleaned up afterwards. Job did take longer than originally stated, I am sure it was due to tight area in which they had to work. My only problem is that I paid cash (personal check) and was told that checks were not considered cash and I didn't get the cash discount. Every other business consider checks as cash Cost me an extra $1200."

Yvonne S on December 2024

With over a decade of experience, Heating & Cooling Certified Mechanic is professionally licensed and dedicated to ensure your HVAC service/install exceeds your expectations! We specialize in HVAC services, repairs and we guarantee your satisfaction! We will not leave until the job is done right! We pride ourselves on the quality of work we provide, while delivering great customer service! Call or click for your FREE estimate today! HVAC, Water Heater, Air Quality System Installations, Repairs & More Need repair? Call Today, Need Installation or a 2nd Opinion? Call Today. 24 Hour Service CALL TODAY! CALL TONIGHT!

"Everything went very well. They were very professional and cleaned up afterwards. Job did take longer than originally stated, I am sure it was due to tight area in which they had to work. My only problem is that I paid cash (personal check) and was told that checks were not considered cash and I didn't get the cash discount. Every other business consider checks as cash Cost me an extra $1200."

Yvonne S on December 2024


Avatar for GAC Services
GAC Services
227 E Deer Park Dr
4.80(
279
)
Approved Pro
GAC Services
227 E Deer Park Dr
4.80(
279
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
782 local quotes requested

GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling

"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."

Deepak K on February 2025

GAC Services is a residential cooling, heating, and electrical contractor setting new standards in the Maryland HVAC and electric market. Since 1970, we’ve developed a strong reputation for providing the Montgomery County and Frederick County areas with reliable cooling and heating services. In 2014, we expanded our service offerings to include electrical services—allowing us to offer our customers the same great service in a new area of business. Additional DBA: Gaithersburg Heating & Cooling

"Highly professional, knowledgeable and well behaved technician. Prices offered were good too. I definitely recommend the company."

Deepak K on February 2025


Avatar for BPPW Heating & Cooling
BPPW Heating & Cooling
705 Dorchester Rd
4.69(
16
)
Approved Pro
BPPW Heating & Cooling
705 Dorchester Rd
4.69(
16
)
Approved Pro
Customers say: Terrific value
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
24 local quotes requested

With over 20 years of experience, BPPW Heating & Cooling takes pride in providing the best services and satisfying our customer needs. Most simple repairs are flat-rated to $150 labor plus parts. We specialize in all l HVAC services, Air Conditioning Repair Service, Heating & Furnace Repair Service, Hot Water Boiler Replacement, Gas Hot Water Replacement, Heating and much more. We look forward to your business and serving you. Contact us today (410) 978-6889 ****UNBEATABLE LOW COST DEALS!**** -Quality low cost gas furnace installs $2700 -Combination units as low as $5200 -Quality low cost heat pump as low $5200 -Quality AC installs as low as $3899 -Quality water boiler installs $5499 Quality steam boiler $5799

"Excellent. FAST. EFFICIENT. KNOWLEDGABLE. PATIENT. THOROUGH and priced both fairly and competitively."

Mr. A on May 2023

With over 20 years of experience, BPPW Heating & Cooling takes pride in providing the best services and satisfying our customer needs. Most simple repairs are flat-rated to $150 labor plus parts. We specialize in all l HVAC services, Air Conditioning Repair Service, Heating & Furnace Repair Service, Hot Water Boiler Replacement, Gas Hot Water Replacement, Heating and much more. We look forward to your business and serving you. Contact us today (410) 978-6889 ****UNBEATABLE LOW COST DEALS!**** -Quality low cost gas furnace installs $2700 -Combination units as low as $5200 -Quality low cost heat pump as low $5200 -Quality AC installs as low as $3899 -Quality water boiler installs $5499 Quality steam boiler $5799

"Excellent. FAST. EFFICIENT. KNOWLEDGABLE. PATIENT. THOROUGH and priced both fairly and competitively."

Mr. A on May 2023


Avatar for JDL HVAC & Plumbing Services
JDL HVAC & Plumbing Services
14300 Cherry Lane
4.50(
113
)
Approved Pro
JDL HVAC & Plumbing Services
14300 Cherry Lane
4.50(
113
)
Approved Pro
Customers say: Super punctual
123 local quotes requested
13 years of experience

JDL HVAC & Plumbing Services LLC offers a wide range of services to meet your HVAC & Plumbing needs. ​ With offices in both Maryland & Virginia, we serve both residential and commercial clients and specialize in offering a variety of money-saving solutions. Combined with our use of the highest quality parts and equipment and our dedication to delivering exceptional service, we have become known as the HVAC & Plumbing contractor of choice in the DMV area! The mission of JDL is to provide honest, reliable service that stands head and shoulders above the rest. We continually strive to exceed expectations by ensuring that each client receives the very best service from our friendly and knowledgeable HVAC/Plumbing service technicians. No matter what you need you can rely on JDL to provide an unparalleled knowledge, experience and expertise!

"They did a good job"

Richard T on June 2024

JDL HVAC & Plumbing Services LLC offers a wide range of services to meet your HVAC & Plumbing needs. ​ With offices in both Maryland & Virginia, we serve both residential and commercial clients and specialize in offering a variety of money-saving solutions. Combined with our use of the highest quality parts and equipment and our dedication to delivering exceptional service, we have become known as the HVAC & Plumbing contractor of choice in the DMV area! The mission of JDL is to provide honest, reliable service that stands head and shoulders above the rest. We continually strive to exceed expectations by ensuring that each client receives the very best service from our friendly and knowledgeable HVAC/Plumbing service technicians. No matter what you need you can rely on JDL to provide an unparalleled knowledge, experience and expertise!

"They did a good job"

Richard T on June 2024


F.H. Furr Plumbing Heating & Air Conditioning Inc
685 Lofstrand Lane
4.33(
15
)
Approved Pro
F.H. Furr Plumbing Heating & Air Conditioning Inc
685 Lofstrand Lane
4.33(
15
)
Approved Pro
Customers say: Super punctual
194 local quotes requested
44 years of experience

Whether you need a repair, preventive maintenance, or replacement, we are your plumbing, heating, and air conditioning service provider in the northern Virginia and surrounding areas. We invite you to give us a call!

"Nice, reliable, and responded immediately."

Ethan Q on January 2025

Whether you need a repair, preventive maintenance, or replacement, we are your plumbing, heating, and air conditioning service provider in the northern Virginia and surrounding areas. We invite you to give us a call!

"Nice, reliable, and responded immediately."

Ethan Q on January 2025


Avatar for Horizon Services
Horizon Services
2607 N ROLLING RD
4.76(
29
)
Approved Pro
Horizon Services
2607 N ROLLING RD
4.76(
29
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
65 local quotes requested

When you need A/C, heating, or plumbing services, look no further than Horizon Services. For nearly 30 years, we’ve been the trusted name in plumbing, heating, and air conditioning, offering an unmatched level of service at reasonable rates.

"Very well. They were very professional and efficient."

Barbara B on January 2023

When you need A/C, heating, or plumbing services, look no further than Horizon Services. For nearly 30 years, we’ve been the trusted name in plumbing, heating, and air conditioning, offering an unmatched level of service at reasonable rates.

"Very well. They were very professional and efficient."

Barbara B on January 2023


Avatar for McCrea Heating & Air Conditioning Services of MD
McCrea Heating & Air Conditioning Services of MD
4463 Beech Rd
4.45(
299
)
Approved Pro
McCrea Heating & Air Conditioning Services of MD
4463 Beech Rd
4.45(
299
)
Approved Pro
Customers say: Quality work
25 local quotes requested
89 years of experience

McCrea is a family owned business that has served our area since 1936. Financing and rebates are available on Trane systems installed by McCrea. Resistrictions apply and these are limited time offers call for details. "Its hard to stop a Trane"

"I had an absolutely terrible experience with McRae Air Conditioning and Heating. I purchased a home equipped with their HVAC system, and within just five months, the heat stopped working—right in the middle of winter during a snowstorm. My home was freezing at 50°F, so I called for service, which should have been covered under warranty. I scheduled an appointment, and the technician, after being several hours late, went to the wrong address, left a sticker on someone else’s door, and left without even trying to contact me. When I called back, the customer service rep was rude, dismissive, and completely unhelpful. He initially told me the technician was on the way and just 12 miles away—but after another hour of waiting, I called again only to be told that the technician had already “been to my house 2 hours ago” (the wrong one) and left a note. If the rep actually wanted to help, he would have told me this during my first call instead of wasting my time and leaving me sitting in the cold. Not once did the technician call me to confirm the address or check in after knocking on the wrong door. When I expressed my frustration, the rep rudely dismissed my concerns, saying, “Well, I had nothing to do with that,” and then interrupted me with, “Do you still want to rebook or not?” as if I had to stop talking or risk not getting another appointment. This was an emergency call in the middle of winter, and McRae handled it in the most unprofessional, careless, and disappointing way possible. If you’re considering using them for HVAC service, do yourself a favor and go with another company. I’ll update this review after the (hopefully successful) service call and speaking to the manager who was not there at 4 pm on a Wednesday."

Terrelle W on February 2025

McCrea is a family owned business that has served our area since 1936. Financing and rebates are available on Trane systems installed by McCrea. Resistrictions apply and these are limited time offers call for details. "Its hard to stop a Trane"

"I had an absolutely terrible experience with McRae Air Conditioning and Heating. I purchased a home equipped with their HVAC system, and within just five months, the heat stopped working—right in the middle of winter during a snowstorm. My home was freezing at 50°F, so I called for service, which should have been covered under warranty. I scheduled an appointment, and the technician, after being several hours late, went to the wrong address, left a sticker on someone else’s door, and left without even trying to contact me. When I called back, the customer service rep was rude, dismissive, and completely unhelpful. He initially told me the technician was on the way and just 12 miles away—but after another hour of waiting, I called again only to be told that the technician had already “been to my house 2 hours ago” (the wrong one) and left a note. If the rep actually wanted to help, he would have told me this during my first call instead of wasting my time and leaving me sitting in the cold. Not once did the technician call me to confirm the address or check in after knocking on the wrong door. When I expressed my frustration, the rep rudely dismissed my concerns, saying, “Well, I had nothing to do with that,” and then interrupted me with, “Do you still want to rebook or not?” as if I had to stop talking or risk not getting another appointment. This was an emergency call in the middle of winter, and McRae handled it in the most unprofessional, careless, and disappointing way possible. If you’re considering using them for HVAC service, do yourself a favor and go with another company. I’ll update this review after the (hopefully successful) service call and speaking to the manager who was not there at 4 pm on a Wednesday."

Terrelle W on February 2025


K&K Industrials
5537 Lynview Ave
4.83(
6
)
Approved Pro
K&K Industrials
5537 Lynview Ave
4.83(
6
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
28 local quotes requested

We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"Kenneth was very helpful and prompt. The air conditioning going out this time of year is no joke, and Kenneth responded swiftly and patiently. The project ended up being more complicated and expensive than I would have hoped, due to the previous owner's hire, but Kenneth resolved and explained every problem we encountered. Will definitely use him again"

Adam M on July 2023

We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service. Check out our services offered and call or click to schedule an estimate today!

"Kenneth was very helpful and prompt. The air conditioning going out this time of year is no joke, and Kenneth responded swiftly and patiently. The project ended up being more complicated and expensive than I would have hoped, due to the previous owner's hire, but Kenneth resolved and explained every problem we encountered. Will definitely use him again"

Adam M on July 2023

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Energy efficiency auditing services FAQs

An energy audit costs about $420 on average, ranging from $100 to $2,250, depending on the size of your home, property, location, and the tests the auditor needs to perform. Keep in mind that the 2022 Inflation Reduction Act’s Energy Efficient Home Improvement credit covers up to $150 of home energy audit costs. Common energy audit tests include:

  • Blower door test: $350

  • Duct testing: $100

  • HERS test: $375

  • HERS certification: $200

  • Infrared imaging: $200

To find a reputable energy auditor, find a local company that offers energy audit services. Research the company’s reviews, methods, and certifications to find a reliable professional in your area. The most reputable energy audit companies are HEP-certified by the Building Performance Institute (BPI). Be sure to check our state licensing tool to review the local energy auditor guidelines to ensure you’re hiring a certified professional.

The difference between an energy auditor and a home inspector is primarily in the purpose of the inspection. The energy auditor conducts tests in your home to determine the energy efficiency levels in areas like windows, insulation, and doorways. The auditor then makes recommendations for ways to improve a home’s energy efficiency

A home inspector examines various structures of your home to determine that everything is up to code and gauge the condition of features like the roof, foundation, HVAC, and electrical. The home inspector reports on the overall home and makes repair recommendations.

Typically, a local home energy auditor is responsible for performing energy audits. A home energy auditor will conduct one of three energy audits designed by the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) to determine the energy efficiency of your home. The auditor often provides analysis that can help guide changes and improvements to your home for better energy efficiency, giving recommendations as necessary.

The three levels of home energy audits include:

  • Level 1: Review of your energy bills and home for signs of energy inefficiency and areas for improvement. The average cost range is $0.08 to $0.12 per square foot.

  • Level 2: A level 2 ASHRAE energy audit costs $0.12 and $0.35 per square foot. In-depth analysis of your energy usage and provides a report of cost-saving changes.

  • Level 3: Comprehensive analysis and detailed recommendations for ways to improve your home’s energy efficiency. A level 3 audit costs about $0.36 to $0.50 per square foot.

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