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  • Average homeowner rating star icon4.6
    Average homeowner rating
  • Verified reviews icon86
    Verified heating oil services reviews

Find Heating oil pros in Harmony

"When I first had this company do small projects for me, I was impressed with the work, however, as the projects kept being done, he was always in such a hurry. He had so many customers to handle, he did not have time to really do a good job. He replaced a vanity in a bathroom, and cracked the drain pipe (2 inch crack). It was left. It began to leak and ruined my ceiling in my living room. So now all the plumbing and ceiling need replaced at my cost. He installed bead board on another bathroom along with trim. It was the worst job I have ever seen. I sat down and cried after he left. Again at my out-of-pocket costs, I now have a beautiful bathroom installed properly. He needs to be up front with customers that his scope of work does not include plumbing, electrical or fine carpentry. Horrible job..."

Donna H on November 2025

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

"When I first had this company do small projects for me, I was impressed with the work, however, as the projects kept being done, he was always in such a hurry. He had so many customers to handle, he did not have time to really do a good job. He replaced a vanity in a bathroom, and cracked the drain pipe (2 inch crack). It was left. It began to leak and ruined my ceiling in my living room. So now all the plumbing and ceiling need replaced at my cost. He installed bead board on another bathroom along with trim. It was the worst job I have ever seen. I sat down and cried after he left. Again at my out-of-pocket costs, I now have a beautiful bathroom installed properly. He needs to be up front with customers that his scope of work does not include plumbing, electrical or fine carpentry. Horrible job..."

Donna H on November 2025


Avatar for CLIMATECH INC

CLIMATECH INC

4.59(
123
)
Approved Pro

CLIMATECH INC

4.59(
123
)
Approved Pro
Customers say: Super punctual
202 local quotes requested
53 years of experience

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 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
102 local quotes requested

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


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


"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 RedLine Contracting

RedLine Contracting

4.90(
42
)
Approved Pro

RedLine Contracting

4.90(
42
)
Approved Pro
Customers say: True professional
857 local quotes requested
7 years of experience

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


Avatar for Updates By Nate LLC

Updates By Nate LLC

4.96(
445
)
Approved Pro

Updates By Nate LLC

4.96(
445
)
Approved Pro
Customers say: Super punctual
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
218 local quotes requested

Contact Nate today for a free estimate or any questions you might have: (704) 401-4445 [email protected] ***2015, 2016, 2017, 2018 , 2019 SUPER SERVICE AWARD WINNER!!! With over 20 years of experience, Updates By Nate is punctual, dependable and professional. Updates By Nate is Licensed and insured, with many years in both the construction industry and customer service- the customer’s satisfaction is always a top priority. Always on time, Nate gets the job done right and leaves the job site spotless. Nate will travel to your location and give a fair and honest estimate on whatever project you have. Most work is charged by the job, not the hour, so you can be sure you are getting the best service for your buck. Nate takes great pride in his work, and he guarantees you’ll be satisfied as well. Servicing: Allegheny County, Beaver County, Butler County, Lawrence County, Mercer County Aliquippa PA 15001 Beaver Falls PA 15010 Butler PA 16001 Chippewa Township PA 15010 Cranberry Township PA 16066 Darlington PA 16115 Ellwood City PA 16117 Enon Valley PA 16120 Grove City PA 16127 Harmony PA 16037 Hermitage PA 16148 Mars PA 16046 Monaca PA 15061 Mercer PA 16137 New Castle PA 16101 Portersville PA 16051 Sewickley PA 15143 Slippery Rock PA 16057 Wexford PA 15090 Zelienople PA 16063 PA HIC# PA188729

"Outstanding in every way from communication to timeliness to thoroughness. Highly recommend."

Bob S on September 2025

Contact Nate today for a free estimate or any questions you might have: (704) 401-4445 [email protected] ***2015, 2016, 2017, 2018 , 2019 SUPER SERVICE AWARD WINNER!!! With over 20 years of experience, Updates By Nate is punctual, dependable and professional. Updates By Nate is Licensed and insured, with many years in both the construction industry and customer service- the customer’s satisfaction is always a top priority. Always on time, Nate gets the job done right and leaves the job site spotless. Nate will travel to your location and give a fair and honest estimate on whatever project you have. Most work is charged by the job, not the hour, so you can be sure you are getting the best service for your buck. Nate takes great pride in his work, and he guarantees you’ll be satisfied as well. Servicing: Allegheny County, Beaver County, Butler County, Lawrence County, Mercer County Aliquippa PA 15001 Beaver Falls PA 15010 Butler PA 16001 Chippewa Township PA 15010 Cranberry Township PA 16066 Darlington PA 16115 Ellwood City PA 16117 Enon Valley PA 16120 Grove City PA 16127 Harmony PA 16037 Hermitage PA 16148 Mars PA 16046 Monaca PA 15061 Mercer PA 16137 New Castle PA 16101 Portersville PA 16051 Sewickley PA 15143 Slippery Rock PA 16057 Wexford PA 15090 Zelienople PA 16063 PA HIC# PA188729

"Outstanding in every way from communication to timeliness to thoroughness. Highly recommend."

Bob S on September 2025


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
59 local quotes requested

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


Avatar for Scheidter Mechanical LLC

Scheidter Mechanical LLC

5.00(
2
)

Scheidter Mechanical LLC

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Heating Cooling Refrigeration Hydronics Instant HTO tanks Minisplit systems VRV systems Commercial & Residencial Service Sales and Installation I have twelve years of experience behind me. Three years under a master mechanical license.

"Jim was very professional and knowledgeable in hvac. He is also very prompt. He diagnosed my issue same day, and got me scheduled later that week to install my new system. Everything installed is working properly."

Kevin L on May 2023

Heating Cooling Refrigeration Hydronics Instant HTO tanks Minisplit systems VRV systems Commercial & Residencial Service Sales and Installation I have twelve years of experience behind me. Three years under a master mechanical license.

"Jim was very professional and knowledgeable in hvac. He is also very prompt. He diagnosed my issue same day, and got me scheduled later that week to install my new system. Everything installed is working properly."

Kevin L on May 2023


American Home Guard Home Warranty - PA

5.00(
1
)

American Home Guard Home Warranty - PA

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

American Home Guard is America’s top rated home warranty provider. They service home buyers and sellers across the nation.They offer home warranty service plans for single family homes, multiple units, condos, and even mobile and manufactured homes. They are proud to offer their referral and realtor programs as well as enticing rates to multiple property owners.

American Home Guard is America’s top rated home warranty provider. They service home buyers and sellers across the nation.They offer home warranty service plans for single family homes, multiple units, condos, and even mobile and manufactured homes. They are proud to offer their referral and realtor programs as well as enticing rates to multiple property owners.

Showing 1-10 of 15
Heating Oil questions, answered by experts

Yes, geothermal heat pumps are worth the money. You can save about 70% on heating costs in the winter and around 50% on cooling costs in the summer with a geothermal heat pump compared to a traditional HVAC system. Over time, your savings on monthly utilities will pay for the cost of the geothermal heat pump installation. If you have an incredibly small yard, however, you may not have enough space for this type of system.

Your HVAC manufacturer will give you instructions on how often you should service your system. Have your unit professionally serviced at least once a year when in doubt. 

Heat pump systems are different because they provide heating and cooling solutions for your home. In this case, you should have it serviced at least twice a year.

There are three main types of heat pumps. An air-source heat pump system is the most common and has two parts—an indoor air handler unit and an outdoor heat pump unit. A ductless heat pump system functions similarly to an air-source heat pump system but doesn’t need ductwork to distribute the air. A geothermal heat pump system pulls heat from the ground to help heat your home.

NATE-certified technicians may charge slightly higher service fees compared to non-certified technicians. This is because NATE certification signifies a higher level of expertise and professionalism, often leading to more efficient and effective HVAC repairs and installations. While the upfront cost may be marginally higher, NATE-certified technicians can potentially save you money in the long run by reducing energy consumption, preventing frequent breakdowns, and extending the life span of your HVAC system. When looking for a local HVAC company to hire, it never hurts to ask about NATE certifications.

You need to service an HVAC system about twice per year, with a service including an inspection and basic maintenance. It’s best to schedule maintenance in the spring (after the furnace has been running and before the AC kicks on) and in the fall (after the AC worked hard all summer and before winter’s first chill arrives). 

Regular HVAC services will keep the system working as efficiently as possible, saving you money on utilities and larger repairs. HVAC maintenance costs around $250 per visit, while bigger repairs from forgotten upkeep could cost thousands.

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