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TRUSTED BY HARMONY, PA HOMEOWNERS

  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon270
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Harmony

Avatar for J A Sauer Co

J A Sauer Co

4.83(
174
)
Approved Pro

J A Sauer Co

4.83(
174
)
Approved Pro
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
44 years of experience

Welcome to JA Sauer, your full service Carrier factory authorized dealer. Our objective since opening in 1981 has always been to exceed our customers' expectations in heating and cooling installation and repairs. To this day we have upheld this promise: providing superior service to area families and businesses. We strive to ensure your peace of mind by sending only the most reliable professionals into your home. You can count on us to make the entire process as east, quick and efficient as possible by determining the best solution for your unique needs, sending trained experts in to do the job right the first time and following up to be sure that all your needs were met. J.A. Sauer -- providing peace of mind so you can enjoy your Home Sweet Home. Additional phone -N. Pittsburgh 724-935-0410, Squirrel Hill 412-521-5277.

"Excellent job. Highly recommend. Good attention to detail and customer service."

Chris H on April 2024

Welcome to JA Sauer, your full service Carrier factory authorized dealer. Our objective since opening in 1981 has always been to exceed our customers' expectations in heating and cooling installation and repairs. To this day we have upheld this promise: providing superior service to area families and businesses. We strive to ensure your peace of mind by sending only the most reliable professionals into your home. You can count on us to make the entire process as east, quick and efficient as possible by determining the best solution for your unique needs, sending trained experts in to do the job right the first time and following up to be sure that all your needs were met. J.A. Sauer -- providing peace of mind so you can enjoy your Home Sweet Home. Additional phone -N. Pittsburgh 724-935-0410, Squirrel Hill 412-521-5277.

"Excellent job. Highly recommend. Good attention to detail and customer service."

Chris H on April 2024


Mullen Heating and Air Conditioning

4.79(
184
)
Approved Pro

Mullen Heating and Air Conditioning

4.79(
184
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
37 years of experience

John Mullen Home Repair has been a well-respected Heating and Air Conditioning "Solutionist" in the Pittsburgh area since its inception. I believe in honesty, open communication, reliability, customer service, timeliness and managing every project I undertake in a cost effective way. This way I can complete every job on time and on budget. . My biggest assets are my dedicated, hardworking, safety conscious honest caring crew. We believe in treating each job as we would want any contractor to treat our family if we cannot be there . We proudly represent Amana and Daikin systems. Thank you for considering John Mullen Home Repair. Financing is available.

"Called and scheduled an appointment promptly, came and fixed the issue"

Lisa H on November 2025

John Mullen Home Repair has been a well-respected Heating and Air Conditioning "Solutionist" in the Pittsburgh area since its inception. I believe in honesty, open communication, reliability, customer service, timeliness and managing every project I undertake in a cost effective way. This way I can complete every job on time and on budget. . My biggest assets are my dedicated, hardworking, safety conscious honest caring crew. We believe in treating each job as we would want any contractor to treat our family if we cannot be there . We proudly represent Amana and Daikin systems. Thank you for considering John Mullen Home Repair. Financing is available.

"Called and scheduled an appointment promptly, came and fixed the issue"

Lisa H on November 2025


"Satisfied"

Michael C on April 2022

Wade Heating and Cooling, Inc is one of Pittsburgh Metro's leading residential and commercial HVAC contractors with the ability to handle all of your needs. We are a Lennox Dealer, but can handle all of your indoor comfort needs.

"Satisfied"

Michael C on April 2022


Avatar for Air Systems Mechanical Contracting, Inc.

Air Systems Mechanical Contracting, Inc.

4.80(
45
)
Approved Pro

Air Systems Mechanical Contracting, Inc.

4.80(
45
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
36 years of experience

Air Systems Mechanical Contracting, Inc. is a customer-focused heating, air conditioning, and excavation company that was originally started in 1989. Located in New Brighton, PA, we employ highly-trained people whose goal is to make our company the best service company in Beaver, Lawrence, Allegheny & Butler Counties. By today’s standards, our company achieves what is unheard of in our industry by maintaining customer satisfaction and approval before, during, and after our interactions with our customers. We accomplish this by maintaining up-to-date knowledge, employee training, competitive pricing, and professional workmanship. We strive to maintain our company motto of exceeding your expectations through results.

"Service by Steve was perfect. Very knowledgeable and pleasant."

George H on February 2025

Air Systems Mechanical Contracting, Inc. is a customer-focused heating, air conditioning, and excavation company that was originally started in 1989. Located in New Brighton, PA, we employ highly-trained people whose goal is to make our company the best service company in Beaver, Lawrence, Allegheny & Butler Counties. By today’s standards, our company achieves what is unheard of in our industry by maintaining customer satisfaction and approval before, during, and after our interactions with our customers. We accomplish this by maintaining up-to-date knowledge, employee training, competitive pricing, and professional workmanship. We strive to maintain our company motto of exceeding your expectations through results.

"Service by Steve was perfect. Very knowledgeable and pleasant."

George H on February 2025


Avatar for CLIMATECH INC

CLIMATECH INC

4.58(
128
)
Approved Pro

CLIMATECH INC

4.58(
128
)
Approved Pro
Customers say: Super punctual
53 years of experience
Free onsite estimate

We are a full service heating and air conditioning contractor. We have 24 hour emergency service available. We currently have approximately 100 employees and we do not use sub contractors. Please visit our website at www.climatech.com for valuable offers and financing options.

"Terrible: 1) Installer did not install as agreed upon. Line was to be placed behind wallboard. They insisted it would not fit, but I found out later when I had another HVAC company install the same units at my work office and did place lines behind wall board behind 2x4's. Be honest will ya! 2) Installer damaged a valve in condenser causing unit to leak which needed replaced. I asked for a new condenser, but Climatech refused and repaired. and warranted the repair. I would have rather had new. 3) Installer split the copper line in two places. A 2nd installer had to come out several days after install to repair and finish install. I requested a new copper line, but they again refused, but instead warranted the repairs. I again wanted new. 4) They sale the unit as most quiet in industry, but when it get's below 40 degrees outside condenser hums and struggles over condensation. The inside unit gurgles and whistles and hisses over it as well. They had a Mitsubishi person come out. Their response is unit runs normal and the operations manual states that the noise is because of condensation and won't do anything further about it. I would have not ordered the unit knowing this. They should list this before selling it. Emailing me an operations manual after the fact of install and payment is just not an acceptable response. Neither Climatech nor Mitsubishi is showing any integrity nor addressing the noise problem. I would not use either again. I am exploring legal options and trying to develop a class action legal case over false advertisement to obtain a replacement unit to eliminate the noise or refund. Very disappointing to spend the one and get this from companies such as this. Email me for more information [email protected] Look at the pictures to see how bad their install looks in a finished room over the false position of their installer."

TriBoroFederalCredit U on March 2022

We are a full service heating and air conditioning contractor. We have 24 hour emergency service available. We currently have approximately 100 employees and we do not use sub contractors. Please visit our website at www.climatech.com for valuable offers and financing options.

"Terrible: 1) Installer did not install as agreed upon. Line was to be placed behind wallboard. They insisted it would not fit, but I found out later when I had another HVAC company install the same units at my work office and did place lines behind wall board behind 2x4's. Be honest will ya! 2) Installer damaged a valve in condenser causing unit to leak which needed replaced. I asked for a new condenser, but Climatech refused and repaired. and warranted the repair. I would have rather had new. 3) Installer split the copper line in two places. A 2nd installer had to come out several days after install to repair and finish install. I requested a new copper line, but they again refused, but instead warranted the repairs. I again wanted new. 4) They sale the unit as most quiet in industry, but when it get's below 40 degrees outside condenser hums and struggles over condensation. The inside unit gurgles and whistles and hisses over it as well. They had a Mitsubishi person come out. Their response is unit runs normal and the operations manual states that the noise is because of condensation and won't do anything further about it. I would have not ordered the unit knowing this. They should list this before selling it. Emailing me an operations manual after the fact of install and payment is just not an acceptable response. Neither Climatech nor Mitsubishi is showing any integrity nor addressing the noise problem. I would not use either again. I am exploring legal options and trying to develop a class action legal case over false advertisement to obtain a replacement unit to eliminate the noise or refund. Very disappointing to spend the one and get this from companies such as this. Email me for more information [email protected] Look at the pictures to see how bad their install looks in a finished room over the false position of their installer."

TriBoroFederalCredit U on March 2022


Avatar for ARS - Pittsburgh

ARS - Pittsburgh

4.69(
167
)
Approved Pro

ARS - Pittsburgh

4.69(
167
)
Approved Pro
Customers say: Quick response
50 years of experience
Emergency services offered

ARS, the on-time repair guys, is nationally recognized and locally operated by highly trained heating and air conditioning specialists. We are your trusted local source for installation, repair, and maintenance of all your heating, air conditioning and indoor air quality needs. Our trained specialists are available 24 hours a day, 7 days a week and go through rigorous background checks. � Estimates provided before we start any work � We are licensed and insured � Major credit cards accepted � 100% financing with approved credit � We offer service plans for ongoing maintenance of your heating and cooling equipment

"Customer service is good had a question and got back to me within an hour "

Linda S on November 2025

ARS, the on-time repair guys, is nationally recognized and locally operated by highly trained heating and air conditioning specialists. We are your trusted local source for installation, repair, and maintenance of all your heating, air conditioning and indoor air quality needs. Our trained specialists are available 24 hours a day, 7 days a week and go through rigorous background checks. � Estimates provided before we start any work � We are licensed and insured � Major credit cards accepted � 100% financing with approved credit � We offer service plans for ongoing maintenance of your heating and cooling equipment

"Customer service is good had a question and got back to me within an hour "

Linda S on November 2025


Avatar for RedLine Contracting

RedLine Contracting

4.90(
42
)
Approved Pro

RedLine Contracting

4.90(
42
)
Approved Pro
Super Service Award
Customers say: True professional
7 years of experience
Free onsite estimate

RedLine Contracting Is A Fully Insured, Family Owned And Operated Company. From General Contracting, To Handyman Projects, You Can Always Rely On Us To Get The Job Done Right! With Free Estimates, Theres No Need To Wait! Reach Out Today On Google, Angi, Or Directly Through Our Website. We Look Forward To Working With You!

"Pro was very friendly, professional, competent, and efficient. He went above and beyond what was required to complete the job."

Steven W on November 2025

RedLine Contracting Is A Fully Insured, Family Owned And Operated Company. From General Contracting, To Handyman Projects, You Can Always Rely On Us To Get The Job Done Right! With Free Estimates, Theres No Need To Wait! Reach Out Today On Google, Angi, Or Directly Through Our Website. We Look Forward To Working With You!

"Pro was very friendly, professional, competent, and efficient. He went above and beyond what was required to complete the job."

Steven W on November 2025


"Did great work. Got us a quote and completed the job within a week of contacting them all for a reasonable price. Would definitely use them again."

Tyler A on October 2025

I’ve been in construction for 25 years retired from every day job and experience and work ethic is strong

"Did great work. Got us a quote and completed the job within a week of contacting them all for a reasonable price. Would definitely use them again."

Tyler A on October 2025


"Good electrical work, very willing to work and discuss with customer."

Steve S on May 2025

Here at Jeffers & Leek Electric, Inc., We are a Family owned business with over 30 years of experience. we are known for our prompt and friendly service. We take great pride in dealing personally with all of our customers. We provide honest and fair consultations.

"Good electrical work, very willing to work and discuss with customer."

Steve S on May 2025


Avatar for MRT Contracting LLC

MRT Contracting LLC

5.00(
4
)
Approved Pro

MRT Contracting LLC

5.00(
4
)
Approved Pro
Super Service Award
Customers say: Quick response
10 years of experience
Free onsite estimate

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. You will find us to be competitively priced with close attention to the details. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We look forward to building a lasting relationship and guarantee your satisfaction!

"I had a fifty year old furnace that provided its last breath on the coldest day of the year and John the owner saw to it that I was financed and gave me a very good price. It was flawlessly installed the next day by his courteous staff and they hauled away the old furnace too. Great job! Thank you."

Keith M on December 2025

We have a single mission: Complete Customer Satisfaction! We have consistently focused on the needs of our customers, providing personalized attention and a stress-free experience. You will find us to be competitively priced with close attention to the details. Our reputation is based on service, safety, and quality, regardless of how large or small the job. We look forward to building a lasting relationship and guarantee your satisfaction!

"I had a fifty year old furnace that provided its last breath on the coldest day of the year and John the owner saw to it that I was financed and gave me a very good price. It was flawlessly installed the next day by his courteous staff and they hauled away the old furnace too. Great job! Thank you."

Keith M on December 2025

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Heating and Air Conditioning questions, answered by experts

Most units are designed only to cool the house down to 20 degrees less than the temperature outside. This means that if it’s 99 degrees Fahrenheit out and you’re trying to cool your home down to 65 degrees, you’ll notice your AC is struggling. 

Lower the blinds on all your windows, turn on your ceiling fans, and keep the thermostat at a consistent temperature to help your AC do its job. Investing in an HVAC maintenance plan also helps because pros will come out to inspect and tune up your unit regularly, keeping it in optimal working condition.

A dirty AC filter can lower the efficiency of your system, so depending on how dirty it was, you may notice a temperature difference when you clean your filter. You can try other solutions if your AC isn’t blowing as cold as it used to. You can call in a local HVAC tech to make sure everything is running correctly, fix your air seal if it’s a window unit, and clean your coils.

Winterizing can still help you save money on energy costs and help prepare your AC for its work next year when you turn it back on. We suggest planning for at least some maintenance, even if winters are mild in your area.

An undersized whole-house generator has the potential to overheat and shut down when you try to run a central AC system. This scenario can not only damage the whole-house generator, but can also trip your home’s breakers or cause electrical damage. To avoid this situation, hire a local generator installer to correctly size your whole-house generator.

Absolutely! You can seriously improve the overall value of your home by maintaining high-quality, compatible systems for heating and cooling. Potential buyers will love not having to worry about getting a new HVAC unit for 15 to 20 years and will pay more for it. For maximum efficiency and cost savings, replacing the furnace and air conditioner at the same time, when possible, gives you (and potential future buyers) reliable comfort and modern convenience.

The Harmony, PA homeowners’ guide to heating and air conditioning services

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

What do you need done? We’ll find top pros.
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