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

    Derek did a great job and was very professional and courteous. Only concern is Donnelly’s pricing schedule.
    Chris Ebersole
    2 days ago
    Dylan was prompt, knowledgeable, efficient, and courteous. A great representative of Donnelly.
    Jim Shea
    2 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
    2 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.
    3 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