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TRUSTED BY DERRY, PA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon28
    Verified heating and air conditioning services reviews

Find Heating and air conditioning pros in Derry

Avatar for Built Right Concepts, LLC
Built Right Concepts, LLC
4.9(
65
)

Serving Derry, PA and surrounding areas

Approved

In business since 2018

Free estimates

Warranties offered

"If you want it done right... build it right! Jason and John are great at HVAC, Plumbing, Electrical, basically everything that a 90 year house needs. I have already started recommending them to friends and co-workers. We interviewed 3 different contractors and went through a home warranty recommended contractor before we took the buy out from the insurance company and we picked Built Right. We wanted them to do the work as soon as we had our first consultation because they paid attention to the details of our house better than any of the 4 other professionals that looked at our house. After our first project, we have no issues on our installation and Jason really is committed to making sure we know how to maintain it. We already signed them up for a plumbing project and a small electrical project. 12/10 would do it again."
Air Conditioner
Carrier Furnace
Response time5 hrs
Response rate100%
Recommended by98%of homeowners
Avatar for Lawrence Plumbing, LLC
Lawrence Plumbing, LLC
4.3(
16
)

Serving Derry, PA and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Lawrence plumbing replaced an old cast iron drain pipe and repiped all the drains leading into it. Existing drains had to be rerouted to improve flow and move them above the bottom of basement joists. They final product was aesthetically pleasing and they were very professional and they were the lowest quoted cost which did not change."
Tankless Water Heaters
HVAC Install
HVAC Install
HVAC Install
HVAC Install

+63

16 neighbors recently requested a quote
Recommended by80%of homeowners
Home Service
4.1(
15
)

Serving Derry, PA and surrounding areas

Approved (Corporate)

In business since 2010

Free estimates

Credit card accepted

Home Service is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

21 neighbors recently requested a quote
Recommended by20%of homeowners
Avatar for Alex’s handyman services
Alex’s handyman services
New to Angi

Serving Derry, PA and surrounding areas

Approved

Free estimates

Emergency services offered

Small jobs welcome

I have 8+ years experience in the heating and air conditioning field. I’m very mechanically inclined, therefore I’m quite useful to do just about anything. I’ve done everything from general around the house stuff to full scale renovation work. I would be my pleasure to do any work for you!

Curlys Mechanical
New to Angi

Serving Derry, PA and surrounding areas

Approved

In business since 2025

Free estimates

Credit card accepted

We take great pride in our experience, expertise, quality and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship, and complete customer satisfaction, from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety and quality, regardless of how large, or small the job. Call us today!

1 neighbors recently requested a quote
Avatar for Clark Kleaning Company
Clark Kleaning Company
New to Angi

Serving Derry, PA and surrounding areas

Approved

Small jobs welcome

Credit card accepted

Offers commercial services

\n\nJermaine & Eric’s Cleaning Co. is the team that turns “just clean” into seriously spotless. Built on teamwork, trust, and a hustle-first mindset, we deliver top-tier residential and commercial cleaning with consistency you can count on. From everyday tidy-ups to full deep-clean transformations, we bring shine, precision, and professionalism to every space we touch.\n\nThis isn’t just cleaning —\nit’s clarity, comfort, and confidence… delivered by two guys who take real pride in the cleanliness next to godliness

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Heating and Air Conditioning questions, answered by experts

To reset your air conditioner, start by turning it off at the thermostat. Then, shut off power to the AC system at the circuit breaker. Some units have a dedicated "reset" button; if yours does, press and hold it for three to five seconds. If your air conditioner doesn't have a reset button, or if you are resetting it after a power outage, leave the circuit breaker off for at least 30 minutes to allow the system to reset itself. Afterward, turn the power back on at the breaker, turn on the AC from the thermostat, and set it to "cool" to test the system.

The $5,000 rule for HVAC systems helps homeowners decide whether to repair or replace an AC or furnace. Take the quote for the HVAC repair cost and multiply that by the age of the HVAC system. If the total is higher than $5,000, it’s more cost-effective to replace the system. If the total is lower than $5,000, consider repairing the system.

Yes, a frozen AC unit can affect your indoor air quality since the reduced airflow won't be as effective at removing air pollutants, like dust and other allergens. Additionally, ice around the unit can create excess moisture, leading to mold and mildew that can damage your home if you don’t catch it early.

Excessive humidity in a room often manifests through visible signs like condensation on windows or walls, a musty or damp odor lingering in the air, peeling wallpaper or paint, and the presence of mold or mildew. Experiencing discomfort due to a consistently clammy or sticky feeling can also indicate high humidity levels.

Unfreezing an AC unit is not a DIY project unless the problem is a dirty air filter. Changing out an air filter is easy for homeowners, but otherwise, trying to repair ductwork, refill refrigerant, or replace a blower fan motor are tasks best left to the pros. Otherwise, you could cause further damage to your cooling system or even harm to yourself.

The Derry, 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.