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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

14 neighbors recently requested a quote
Recommended by80%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

Evaporator coils in HVAC systems typically last around 10 to 15 years. However, their life span can be longer or shorter based on factors like the frequency of your HVAC system usage, whether regular maintenance is performed, and environmental conditions. Regular maintenance, such as HVAC system cleaning and coil inspection, can extend the durability and efficiency of your evaporator coil.

While "dry" mode on your AC can help reduce humidity levels to some extent, it may not be as effective as a dedicated dehumidifier, especially in areas with extremely high humidity or larger spaces. Dehumidifiers are specifically designed to remove moisture from the air more efficiently, making them a better choice for tackling persistent humidity issues.

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.

A blockage in the ductwork may prevent air from flowing through the vent. If some rooms in your home are very hot or cold and another isn't, that can be a sign that a vent is blocked. Another sign of a blockage is a buildup of dirt or dust around the vent. In either case, a duct installer or cleaning service can investigate the issue for you and recommend a course of action.

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.

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.