Donnelly's Cooling, Heating & Plumbing

Home Comfort Specialists Since 1972

Serving Montgomery, Bucks, Chester, & Delaware Counties

Get Started

"*" indicates required fields

Name*
Name*

Get Started

"*" indicates required fields

Name*
Name*

Trusted HVAC & Plumbing Services in the Greater Philadelphia Area

Five Decades of Local Service Excellence

Trust the home comfort specialists from Donnelly's Cooling, Heating & Plumbing 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.
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.​

    We are proud to Offer Affordable Financing Options!

    Our Reviews

    See What Your Neighbors Are Saying

    Today's experience with Donnelly's was outstanding, and I especially want to recognize my technician, Robert. From the moment he arrived, Robert demonstrated professionalism, honesty, and expertise. I inherited an older HVAC system when I bought my house just over a year ago, so I'm aware it requires regular servicing and will eventually need replacement. Robert took the time to explain everything clearly and offered valuable insights into my system's current state. What stood out most was how Robert communicated about the future without any high-pressure sales tactics. He was candid about the needs of my aging system and explained how Donnelly’s process works when the time comes to invest in a new one. I really appreciated the honest, informative conversation we had at the end of his visit. Robert's service was top-notch, and I’m grateful for his knowledge and guidance. Thank you, Robert, for your excellent work today!
    Kim Owens
    1 day ago
    Joe Albert was very knowledgeable and professional. The install crew did a great job and explained everything to me. Cleaned up very well before they left.
    Phil Donatiello
    1 day ago
    Great experience. Andrew was professional and courteous!
    Richard Morrow
    1 day ago
    Tom did a great job inspecting all of my plumbing and installing a washer and dryer Flood Stop
    Charles Off
    1 day ago
    Job went well, tech was helpful, informative and conciencous. Will be following up w you next week to get the job finished
    Steve Printz
    1 day ago
      Read Our Reviews

      Donnelly’s Proven Process

      What to Expect, Start To Finish, When You Set up An Appointment With Donnelly’s
        Learn More

        We Sell, Service and Install All Top Brands

        Proudly Serving

        The Greater Philadelphia area and the surrounding counties


        • Montgomery County
        • Bucks County
        • Chester County
        • Delaware County

        View More

        Our Deals

        Save on Your Next Service

        Get Started

        "*" indicates required fields

        Name*
        Name*

        Recognized for Excellence by Customers and Industry Professionals Alike