About Donnelly’s Cooling, Heating & Plumbing

In 1972, Donnelly’s Cooling, Heating & Plumbing began serving Pennsylvania residents with premier plumbing services and later expanded to add their superior HVAC services. As the area’s top choice for plumbing, heating, and cooling service, we’re proud to offer unmatched professionalism and quality results.

With same-day and emergency services, our team is always available for your home service needs. Plus, with service for all brands and free estimates, you can trust you’re in excellent hands with our team.

Don’t delay. Contact us online today for all your HVAC and plumbing needs in Montgomery County.

Our Comprehensive Plumbing & HVAC Services

The experts at Donnelly’s Cooling, Heating & Plumbing have the skills and training to provide comprehensive services for everything from heat pumps and duct repairs to water heaters and camera inspections. This includes:

Same-Day Service

(215) 855-2014
Schedule Online

Why Choose Us?

At Donnelly’s Cooling, Heating & Plumbing, we’re proud to offer superior service in Montgomery County. With over 50 years of industry experience, our customers choose our team thanks to our:

  • Highly trained technicians: Our team members are licensed and insured with the highest-level training necessary to ensure that your services are always performed precisely, safely, and efficiently. With our valuable years of experience, we offer unmatched expertise in HVAC and plumbing.
  • Ethical conduct: From upfront pricing to clear and honest communication, we treat our technicians and customers like family. We’re committed to high-quality work and strict safety standards to ensure that we operate with the ultimate level of respect and integrity. 
  • Professional accountability: We stand behind our work to ensure you’re always satisfied with our results. Plus, our responsiveness and dedication to problem resolution means your concerns are always heard, addressed, and resolved.

Our Awards & Recognition

Our team offers award-winning service and has been recognized for excellence throughout the Greater Philadelphia area. Our awards and recognition include:

  • A+ BBB-accredited business
  • Best Pick Guarantee
  • Nexstar Network membership

Our Comfort Protection Plan

As part of our commitment to providing convenience at a great value, Donnelly’s Cooling, Heating & Plumbing offers our Comfort Protection Plan. This small investment delivers great peace of mind to ensure that your HVAC and plumbing systems are always in top-notch condition.

Members receive streamlined annual tune-ups, priority service, no extra fees, and exclusive discounts.

We Offer Financing & Specials

With our team, there’s always a way to save. We offer a variety of seasonal promotions to help you save on routine services, installations, replacements, and more. Plus, for homeowners who need urgent service that’s not in the budget, we offer financing options through GreenSky, Synchrony, and Service Finance with plans that fit your budget. 

Schedule Home Services With Donnelly’s Cooling, Heating & Plumbing

For over 50 years, Donnelly’s Cooling, Heating & Plumbing has provided the highest quality services to residents of Greater Philadelphia area. Our friendly and helpful technicians treat you with the utmost respect and are here to ensure that your needs are always met.

With our significant experience, we’re dedicated to maintaining your comfort and convenience. Plus, with our military, veteran, and senior discounts, we’re proud to support our local community.

Schedule HVAC or plumbing services in Lansdale today by calling Donnelly’s Cooling, Heating & Plumbing.

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.​
    Our Reviews

    See What Your Neighbors Are Saying

    James was punctual, let us know he was coming, and did a great job completely addressing the problem we were having.
    Renee Byrne
    1 day ago
    James kept me informed about the progress of my plumbing repair
    Charles Henry
    1 day ago
    Communication at every level was outstanding. Oscar was right on time, very polite, answered my questions & did an outstanding job. Great Experience. Wish all service companies were this good. Rich Goldsmith
    Rich Goldsmith
    2 days ago
    They were on time to replace my furnace, polite and professional, answered all of my questions and cleaned up after themselves and put everything back in my utility room the way they had found it, for the most part. The overall cost is a bit high, but as it comes with a 10 year parts and labor warranty I guess that's ok, but I have to pay $20 a month in addition to maintain this. So...as I've said, a bit costly. I feel as if maybe I jumped the gun in replacing it, as there really wasn't anything wrong with old furnace except that it was old. But hopefully this will last me until I leave this earth. Evan & King did a great job today installing my new HVAC system. They were polite, courteous, and helpful to me in extra ways. When my furnace was installed and the new thermostat was put in, it didn't cover the old one completely leaving a spot that was obvious. I picked up a small can of paint and King took care of that for me today. It looks much better. It may need another coat after it's completely dry, but that can be done anytime. The cost reasonable , and they gave me a discount for paying in cash and Joe, the manager said now that I have both systems I no longer need to pay the $20 per month, & will now have, starting today, a 10 year free parts & labor warranty. The guys cleaned up after themselves just like last time. And Evan even helped me out with something personal. I have a paralyzed left arm, and I just received a coconut shell birdhouse in the mail that needed a hole drilled in the bottom. I saw he had a drill out, so I asked, and he was nice enough to do that for me. Overall am very happy with Donnelly's. Everything looks really good, and the job took just about as long as they said it would. 28 April 2025 Ok, just a quick update, as I've said, both King and Evan were very nice, polite, and professional on the day of the installation of my new HVAC system. I turned it on for the 1st time today, I'm amazed at how QUIET the compressor that's outside is!! My old one was so loud. Then again it was 27 years old!😂 The only thing I'm waiting on now is something, anything, in writing. I was told by Joseph Albert that since Donnelly's had put in my furnace last year, and were now putting in the HVAC system, I would no longer have to pay the $20 per month maintenance fee, and that I now have a 10 year parts and labor warranty. Nice to HEAR, but I'd really, really like to see something in writing that confirms all of this. I wasn't even given a receipt after I paid the 1st $1,000.00 deposit in cash, or the remainder of $5,900.00, again, in cash. I'm used to getting a receipt once I pay for something. I got a yellow slip of paper just saying all the work had been done. So THAT is my only issue. I want written confirmation of what was discussed & a receipt that I paid.
    Michele B.
    2 days ago
    Donnelly responded within 2 hours of me calling in the late morning hours. They quickly repaired my leak installed a new shutoff valve so that I won’t experience a leak again. Thanks to Daniel who did the quick repair.
    richgreco
    2 days ago
      Read Our Reviews