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Avatar for McCrea Heating & Air Conditioning Services of PA
McCrea Heating & Air Conditioning Services of PA
4.7(
317
)
Central A/C - InstallCentral A/C - Service or RepairCentral Air Cleaner - Repair or Service+21 more

Serving Concord, PA and surrounding areas

Approved

In business since 1936

Free estimates

Emergency services offered

"Rob was the service technician who came by for check up on our Trane AC Unit. He was professional and courteous. He took time to explain and label damper settings for future reference. He was the best HVAC technician I have ever encountered thus far. Rob is definitely an asset to McCrea company. If I ever need service again, I want Rob to be the one to service my AC Unit. Thank you!"
Additional Photos
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6 neighbors recently requested a quote
Recommended by95%of homeowners
Murchison cleaning solutions
New to Angi
Air Ducts & Vents - Clean

Serving Concord, PA and surrounding areas

Approved

\n\nBusiness & Career Focus: You’re very committed to building Murchison Cleaning Solutions and positioning it as a professional, competitive cleaning company for post-construction, commercial, and apartment projects. You take care with proposals, pricing, and contracts so you come across polished and reliable.\n\nFinancial Growth Mindset: You think strategically about how to scale—like structuring bids to hit monthly revenue goals, negotiating terms like 50% deposits, and making sure your pricing is competitive but profitable.\n\nCompliance & Professionalism: You’re detail-oriented about certifications (OSHA, WBE, etc.), IRS forms, EIN/DBA issues, and making sure your business is set up correctly. You want everything to look official and credible.\n\n

USPS Project
USPS Project
USPS Project
Avatar for Air Adviser, LLC
Air Adviser, LLC
5.0(
24
)
Ducts & Vents - Install or Replace

Serving Concord, PA and surrounding areas

In business since 2018

Free estimates

Credit card accepted

"Called Josh on a Saturday morning to report a problem with our heat pump by noon he was here and had identified the problem. We are very happy with this company as they do not use a 1000% markup on parts like some HVAC companies in the area seem to charge. With Air Adviser you get Honest service at an Honest price."
Installations
Furnace
Furnace
Furnace
Heater Repair

+11

Response time4 hrs
Recommended by100%of homeowners
Avatar for 717 Home Comfort LLC
717 Home Comfort LLC
4.9(
8
)
Central A/C - InstallCentral A/C - Service or RepairDuctless Mini-split A/C - Install or Replace+8 more

Serving Concord, PA and surrounding areas

In business since 2025

Free estimates

Emergency services offered

"Absolutely amazing!!! Our AC stopped working today, and with the health issues that my kiddo & I have, long wait for an HVAC tech availability was not something that we could risk . We found 717 Home Comfort recommended on one of our local community pages & we were lucky enough that Derek had availability to come out within the hour. Thankfully it was a simple fix. Derek was very transparent from the start with pricing & there were no crazy extra fees. He was very friendly, personable, and professional.. He is now our go to HVAC guy, & I 1000000000% recommend!!"
Heat Pump Installation
Response time3 hrs
Response rate98%
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Heating and Air Conditioning questions, answered by experts

Vents may blow air even though the air conditioning system is off because of the pressure difference between indoor and outdoor air or drafts from leaky ducts. Check for leaks or drafts in the ductwork or around windows and doors.

Don’t run your AC with a wet filter. It can cause your AC to work too hard, which will run up your utility bill and cause extra wear and tear on the system. You could also spread moisture and mold throughout your house. Turn off the AC, remove the wet filter, and check for cracks or clogs. Fix the problem (with a pro’s help, if you need it), and put a dry filter in place before you turn the system back on.

You can buy a house with a 15-year-old HVAC system if you inspect the system for performance and budget for a replacement within the next three years. You can also negotiate the price with the sellers. Ask to look at the unit’s maintenance records and energy bills for the last two years to determine the shape of the HVAC system and its operating costs. Spend time in each room of the house to gauge if the HVAC keeps the home at a consistent temperature throughout.

No, for two very important reasons. First, it’s illegal to release refrigerant into the air or ground since it can be toxic and cause environmental damage. Technicians typically pump old or extra refrigerant into separate tanks for special disposal. Second, without professional equipment to read refrigerant pressure and levels, plus the AC’s suggested requirements, it’s impossible to know if you’ve removed the right amount of refrigerant. Stay away from a DIY solution here and seek an expert with the right tools.

Yes, a dirty evaporator coil can freeze up. Dirty evaporator coils can’t absorb or transfer heat properly. The dirt and grime restrict airflow, which is needed to move heat throughout the system properly. Your air conditioning unit could freeze over, or it can cause your heat pump to freeze.

The Concord, 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.