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

I recently had the pleasure of working with Chris Vangas, a Generac subject matter expert with Donnelly’s Plumbing, Cooling, Heating & Electric, and I cannot say enough positive things about the experience.

Chris quickly and efficiently diagnosed multiple issues with my relatively new Generac unit, which powers my entire home. He arrived prepared, knowledgeable, and fully equipped to assess the situation. What impressed me most was his ability to take a very complicated system and break everything down in a way that my family and I could understand. He carefully evaluated multiple components, including the safety valve, gas supply, and operating levels, and explained why each detail mattered to the safe and reliable operation of the unit.

These systems are sophisticated and complicated, but Chris’s attention to detail, professionalism, and leadership immediately earned my trust. He was spot-on in identifying the issues and demonstrated the kind of expertise and ownership that you hope to find when someone is responsible for a system that is critical to your home.

Chris promised to return the following day, and he absolutely delivered. He worked for hours in 97-degree weather until the project was completely finished. That level of commitment says a great deal about his character and dedication to his customers.

Chris is a tremendous asset to Donnelly’s. In fact, moving forward, I have decided to have Chris handle my annual preventive maintenance as well. I know my Generac is in good hands with him.

My experience with Donnelly’s overall has also been exceptional. Everyone I have encountered has been terrific, from the professionalism of the business to the technical expertise required to service today’s state-of-the-art equipment, including my smart HVAC system. It is clear that Donnelly’s takes pride in its people, its workmanship, and its customers.

Chris exemplifies excellence. His knowledge, attention to detail, work ethic, and willingness to make sure the job was done right truly stood out to me. I look forward to seeing Chris again at my next preventive maintenance appointment and would highly recommend him and Donnelly’s to anyone looking for knowledgeable, dependable, and trustworthy!

Neil Jain

3 days ago

Amir gave us an absolute great experience from start to finish. Professional scheduling, on time, knowledgeable technician, friendly, respectful and nice. Thank you!!!

Andrew Kessler

5 days ago

Water heater replaced within 24 hours. It was a premium price but then I received premium service !
Travis was very professional and helpful.

Theresa Sidorick

6 days ago

Friendly, competent employees. They did a great clean up job. Very pleased with the work.

Barbara Gerlach

6 days ago

Luis& Frank were very knowledgeable about their profession!
I highly recommend them for
an HVAC project
They cleaned up the work areas perfectly!!
I highly recommend them for your next project!
Thank you Luis & Frank.

Debra Warner

7 days ago

Read Our Reviews