Donnelly's Plumbing, Cooling, Heating & Electric

Home Comfort Specialists Since 1972

Serving Montgomery, Bucks, Chester, & Delaware Counties

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Cooling

Heating

Plumbing

Drain & Sewer

Electrical

Trusted HVAC & Plumbing Services in the Greater Philadelphia Area

Five Decades of Local Service Excellence

Trust the home comfort specialists from Donnelly's Plumbing, Cooling, Heating & Electric when you have a broken AC, inefficient furnace, or leaky faucet. With over 50 years of experience, our family-owned and -operated company has the skills and tools to handle any home service you need. You can expect licensed and insured technicians to deliver prompt, reliable solutions that keep your home comfortable and functional year-round.

Air Conditioning Services

Stay cool and comfortable all summer with expert cooling solutions from Donnelly's Cooling, Heating & Plumbing . We'll repair your central air conditioner, heat pump, or ductless mini-split system if it’s not working properly. Your technician will walk you through your options if you want to install a new cooling system. We even offer free estimates on replacement AC units.

Heating Services

We understand how essential it is to have working heat during Pennsylvania winters. If your furnace, boiler, or heat pump struggles to keep you warm, turn to us for fast repairs. When your system needs replacing, we'll handle that, too. Our trained and experienced technicians are always available to provide quick and reliable service with honest, upfront pricing.

Plumbing Services

Clogged drains, burst pipes, running toilets, and other plumbing problems can bring your daily routine to a complete halt. Thankfully, our expertly trained plumbers are ready to help with any plumbing need you may have! We offer repair, replacement, installation, maintenance, and drain cleaning services to keep your home’s plumbing running smoothly.

Drain & Sewer Services in Lansdale

Donnelly's Cooling, Heating & Plumbing provides comprehensive drain and sewer services to keep your plumbing system running smoothly. Located in Lansdale, PA, our expert team is equipped to handle all your needs, from drain cleaning to hydro jetting.

We also handle both trench and trenchless sewer line repair and replacement, ensuring minimal disruption to your property. Our video camera inspections allow us to accurately diagnose issues and provide targeted solutions. Whether you need sewer line repairs due to tree root intrusion or sewer line installation for your property, you can trust us to deliver efficient and reliable service.

Call (215) 488-5170 now to schedule HVAC or plumbing services in Montgomery County, the Greater Philadelphia area, or surrounding areas.

What To Expect

Discover the Donnelly’s Difference

Professional Services

We show up on time, keep things clean, and listen to what you need. We treat you and your home with the respect it deserves.

Service for All Brands

We can work on all makes and models of HVAC and plumbing equipment.

Trustworthy

You can count on us to be honest and always do what we say. We communicate clearly, provide our guarantees & warranties in writing, and ensure you understand everything we're doing in your home.

Experienced Technicians

We excel at solving problems with years of experience behind us. We look at today's challenges and future needs to create the best customized solutions.

Licensed & Insured

Our technicians are licensed, insured, and background-checked for your peace of mind.

Professional Services

We show up on time, keep things clean, and listen to what you need. We treat you and your home with the respect it deserves.

Service for All Brands

We can work on all makes and models of HVAC and plumbing equipment.

Trustworthy

You can count on us to be honest and always do what we say. We communicate clearly, provide our guarantees & warranties in writing, and ensure you understand everything we're doing in your home.

Experienced Technicians

We excel at solving problems with years of experience behind us. We look at today's challenges and future needs to create the best customized solutions.

Licensed & Insured

Our technicians are licensed, insured, and background-checked for your peace of mind.

About Us

We are proud to Offer Affordable Financing Options!

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Our Reviews

See What Your Neighbors Are Saying

Derek did a great job and was very professional and courteous. Only concern is Donnelly’s pricing schedule.

Chris Ebersole

3 days ago

Dylan was prompt, knowledgeable, efficient, and courteous. A great representative of Donnelly.

Jim Shea

3 days ago

I was very pleased with Nick’s work. But, also with his explaining every detail of what he was going to do as well as some other important plumbing tips.

Barbara magarity

3 days ago

Oct 2025 - Tony Reyes came out to do a hearing system inspection. He was professional and polite. He advised on 2 improvements which I put under consideration for later. I am gun shy now. Oct 2025 - they returned to correct the original plumbing issue and it was a quick solve which made me question my prior spend of $2k. Sept 2025 - I had a plumbing issue with a toilet and they came out and I ended up paying for $2k of repairs resulting from my subpar builder but was told it caused the issue I was having. All of the repairs however did not resolve my original issue. 😐 July 2025 - Justin Henry came out to perform an AC inspection. He was on-time, courteous, and thorough. I now know about possible upgrades I can add to my systems but also that my AC is good condition. Holding at 4 stars. March 2025: Joseph Garber came out for a plumbing inspection which is a covered service for the $20/monthly fee I pay. He was professional, personable, punctual and just nice. All of their service reps should have some of the “P”s listed above. Adjusted my review rating from 2 stars to 4 stars. Jan 2025: Horrible experience with the last service visit by Kevin McCullogh. He arrived without a service appointment while I was at work but my son was at home. My son let him in to do the work when he couldn’t reach me at work. The service was done well but it was an hot mess with the payment. I had to call the main office from work to make arrangements. All of this made my son late for his college class because none of it was planned. Not the experience I am used to. Disappointed and I am doubting using them for another service I was considering.

Marnie A.

4 days ago

The team of 3 that was here to replace my sewer line were extremely confident in what they were doing. They kept we well informed and worked very well as a professional team. They were polite and workmanship was wonderful. All was cleaned up before they left. I would definitely use this crew again no doubt. Give them 5 stars for sure.

Ed Hvorecny

4 days ago

Read Our Reviews