4.8 
28 *The Angi rating for Heating And Air Conditioning Service companies in Derry, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Derry, PA is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.
Last update on October 24, 2025
Serving Derry, PA and surrounding areas
Approved
In business since 2001
Free estimates
Emergency services offered
"The team quickly made an honest evaluation and checked for safety and upkeep without need to replace water heater. Just charged minimum service call."
+67
Serving Derry, PA and surrounding areas
Approved
In business since 2019
Warranties offered
Credit card accepted
"Very professional!! Got the job done! Price was reasonable. I will definitely recommend and reuse them."
Serving Derry, PA and surrounding areas
Approved
Free estimates
Emergency services offered
Small jobs welcome
We have 20 plus years in the HVAC/R field. I have serviced all brands of furnaces and cooling units. Commercial and Residential. Veteran and family owned.
Serving Derry, PA and surrounding areas
Approved
At NxtDoor Heating & Cooling, we’re your local go-to for fast and dependable HVAC service. Whether it’s fixing a unit, routine maintenance, or a full install
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!
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!
Serving Derry, PA and surrounding areas
Approved
We offer great cleaning experience, hard work and dedication with great customer service. We are very trustworthy and have great expectations in our cleaning services. We offer 100 % of our time and effort into assuring our customer satisfaction with high quality and professional grade services.
Serving Derry, PA and surrounding areas
Approved
Free estimates
Warranties offered
Small jobs welcome
\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
Serving Derry, PA and surrounding areas
Approved
I love to clean I show up and I get the job done
Serving Derry, PA and surrounding areas
In business since 2002
Free estimates
Emergency services offered
"Will and Rob showed up at the house and the appointed time and started right at it. The old a/c, furnace,duct work, wiring, and gas line were gone in no time. When they started the install, took their time to get everything perfect. Constantly checking for level and plum of all units, ducts, plumbing, and even wiring. Explained what was going on and why they were doing what they were doing. Both Will and Rob very friendly and extremely knowledgeable about HVAC. I worked in the plumbing wholesale for 20 years, so I know a bit about was going on. The new technology is amazing. They installed a 96 percent efficient furnace with a 16 seer a/c unit by Amana. Came with a lifetime warranty on the a/c compressor and furnace heat exchanger, the two main components.
They did an excellent job. All the old units were taken away and site was completely cleaned cleaner than before they started. Will even filled out the rebate form from the electric company for me.
I will definitely hire Giant again and again!
"
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