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  • Average homeowner rating star icon4.7
    Average homeowner rating
  • Verified reviews icon169
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Renfrew

Mullen Heating and Air Conditioning
4.6(
205
)
Central A/C - InstallElectric Furnace / Forced Air Heating System - InstallGas Furnace / Forced Air Heating System - Install+47 more

Serving Renfrew, PA and surrounding areas

Approved

In business since 1988

Emergency services offered

Warranties offered

"Would absolutely recommend John Mullen and his company. From the first time I called John he was very responsive and professional. I had called multiple other HVAC companies to install a vent through a brick chimney and were having trouble finding someone who would even come take a look to see if they could tackle the project. John didn't hesitate and came out and talked to us to find the right solution. Once we were ready for the job we were able to schedule him within about two weeks and he called the day of to see if they could come a bit earlier than planned. I truly appreciate the quick and professional communication throughout the whole process. The guys that came with him to do the work were also professional and they got the job done quickly. The price we paid was very reasonable for the length of time they spent and the difficult job of drilling out through brick."
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Response time2 days
Response rate100%
7 neighbors recently requested a quote
Avatar for Bactronix Corp
Bactronix Corp
4.9(
505
)
Air Ducts & Vents - Clean

Serving Renfrew, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2011

Free estimates

Emergency services offered

"We hired Bactronix to clean the HVAC ducts in our house. Technicians Masson and Shawn arrived on time, did their work unobstrusively and efficiently, and answered all my questions politely and fully. They sent over before and after pictures of the ductwork by e-mail afterwards. Their work has made a positive difference to the air quality in the house, and we appreciate their services."
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+19

Response time1 day
7 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Air Systems Mechanical Contracting, Inc.
Air Systems Mechanical Contracting, Inc.
4.6(
54
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallBoiler or Radiator Heating System - Install or Replace+21 more

Serving Renfrew, PA and surrounding areas

Approved

In business since 1989

Free estimates

Emergency services offered

"A great company, from the estimate to the install they were on time, informative and very professional. I really think I could not have found a better group of professionals to replace my current heat pump and air handler. Kudos to this company, I highly recommend you give them a shot at your HVAC needs. If their service is as punctual and professional as they have been for the install, I'm not sure you could find a better fit. Thank you Air Systems Mechanical and please say thank you to your team of guys for me who installed my system, they were outstanding! I found my go too for all my HVAC needs."
Williamson Upflow Oil Furnace
18 SEER American Standard A/C
American Standard TAM4 Air Handler
Rheem Tankless Water Heater
Williamson Condensing Boiler Installation

+12

Response time11 hrs
Response rate86%
4 neighbors recently requested a quote
Avatar for ARS - Pittsburgh
ARS - Pittsburgh
4.5(
197
)
Central A/C - InstallGas Furnace / Forced Air Heating System - InstallCentral A/C - Service or Repair+5 more

Serving Renfrew, PA and surrounding areas

Approved (Corporate)

In business since 1975

Emergency services offered

Warranties offered

"They installed our HVAC system two years ago and they service it every 6 months. We have the furnace checked in the winter and the air conditioner checked in the spring. They are very reliable and professional and they do a great job."
System Installation
294 neighbors recently requested a quote
Recommended by80%of homeowners
Avatar for Aire Serv of Sewickley
Aire Serv of Sewickley
4.8(
22
)
Air Ducts & Vents - CleanCentral A/C - Service or RepairGas Furnace / Forced Air Heating System - Repair+5 more

Serving Renfrew, PA and surrounding areas

Approved

In business since 2019

Free estimates

Credit card accepted

In the middle of July, when the thermometer is pushing past 100 degrees Fahrenheit, air conditioning isn't a luxury that's nice to have in Pittsburgh—it's an absolute necessity that you don't want to live without. It's obviously a disaster when your air conditioner grinds to a halt on the hottest day of the year. But it's also incredibly frustrating to deal with an AC unit that only "kind of" works and is struggling to get your house down to the temperature on your thermostat or control humidity levels. When you notice those types of annoying issues, it's necessary to get professional Pittsburgh air conditioner repair services before the problem worsens and you're left sweltering in an overheated house.

Gallery
36 neighbors recently requested a quote
Recommended by100%of homeowners
Kennihan Plumbing & Heating, Inc.
3.7(
227
)
Gas Boiler or Radiator Heating System - InstallCentral A/C - Service or RepairDuctless Mini-split Heating System - Install or Replace+15 more

Serving Renfrew, PA and surrounding areas

Approved

In business since 1969

Free estimates

Emergency services offered

"Dave Hinchberger is a "pros pro!" Dave quickly and effectively analyzed my HVAC issue and then professional fixed my problem. Dave's diagnostic skills allowed him to analyze and fix my HVAC problem without "being a parts changer" as it seems most repairmen are that I have experienced. I cannot rate him high enough. Par Excellence service!!"
NEW SHOWER HEAD & FAUCET
NEW TILE
Ultra High Efficiency System
Furnace Replacement
Furnace Replacement

+2

Response time7 hrs
5 neighbors recently requested a quote
Recommended by84%of homeowners
Avatar for Jeffers & Leek Electric, Inc.
Jeffers & Leek Electric, Inc.
4.2(
466
)
Electrical Baseboard or Wall Heater - InstallElectrical Baseboard or Wall Heater - Repair

Serving Renfrew, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2003

Free estimates

Emergency services offered

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.

Panel Upgrades
Recessed Lighting
Under Cabinet Lighting
Ceiling fan installation
House Rewire, Knob and tube Removal

+11

10 neighbors recently requested a quote
Recommended by97%of homeowners
Avatar for Advantage Remediation Services
Advantage Remediation Services
5.0(
6
)
Air Ducts & Vents - Clean

Serving Renfrew, PA and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

We pride ourselves on our extreme professionalism and attention to detail. Our customer satisfaction guarantee will assure you we will not leave your property until you are completely satisfied with our work. As a locally owned and operated business you can trust that we will treat your home as we would treat our own. Give us a call today, and we look forward to working with you!

My Jobs
My Jobs
My Jobs
My Jobs
My jobs

+10

Response time9 hrs
Response rate96%
12 neighbors recently requested a quote
Avatar for Lawrence Plumbing, LLC
Lawrence Plumbing, LLC
4.3(
16
)
Central A/C - Service or RepairHeat Pump - Install or ReplaceDuctless Mini-split A/C - Install or Replace+8 more

Serving Renfrew, PA and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

At Lawrence Plumbing, Heating and Cooling LLC, we don't just get the job done — we get it done right. What sets us apart from other contractors is our unwavering commitment to honesty, craftsmanship, and long-term customer relationships. With over 23 years of experience, we bring a depth of knowledge and attention to detail that ensures every system we install or repair is built to last. Unlike many larger companies, we offer personalized service — every project is handled with care by licensed, highly trained technicians who take pride in their work. We're responsive, we stand behind everything we do, and we treat your home or business like it's our own. Whether it's a leaky pipe, a full HVAC installation, or a complete sewer replacement, you can count on us for transparent communication, quality workmanship, and dependable results — every time.

Tankless Water Heaters
HVAC Install
HVAC Install
HVAC Install
HVAC Install

+67

12 neighbors recently requested a quote
Recommended by80%of homeowners
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Heating and Air Conditioning questions, answered by experts

Not if you have a standard unit. Because portable AC units actually work to dehumidify the room, you’ll likely need to drain the unit from time to time—but you won’t have to put water into it. There is, however, another type of air conditioner called a swamp cooler that requires water to operate. If you have a swamp cooler, you may need to fill a reservoir with water and potentially ice. But a swamp cooler is different from a standard portable AC unit.

A damper motor can last up to 15 years, but it can wear out more quickly than that if you run your HVAC unit a lot. So you might expect a longer life in a colder climate than if you live in a warmer climate.

You should flush your AC drain line once every three months to keep it clear of debris and buildup. Keeping your AC drain line clean prevents clogs, backups, mold growth, and extra wear on your AC unit. If you live in a humid area or have several furry pets, up your cleaning schedule to once a month.

Whether an HVAC damper should be open or closed depends on the season, the zone it controls, and the temperature in that zone. In the summer, open upstairs dampers and close lower-level dampers to get the most efficient cooling possible. In the winter, do the opposite. Cool air will naturally flow down to lower levels, while warm air will rise. This keeps your system from working harder and helps prevent common AC problems.

You may never need an AC recharge if there are no leaks. However, if your AC unit has a leak that cannot be patched appropriately, you’ll need an AC recharge every time the freon level drops low enough that it disrupts your system—this could be once every two to three years. It all depends on the size and frequency of the leak.

The Renfrew, 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.