Donnelly's Cooling, Heating & Plumbing

Home Comfort Specialists Since 1972

Serving Montgomery, Bucks, Chester, & Delaware Counties

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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

    Great service. Duane was professional and spent a lot of time to explain.
    Michael Morgioni
    1 day ago
    Tech was on time, professional and did quality work.
    David
    2 days ago
    James arrived on time for our plumbing needs. He gave us several options with the corresponding prices. He perform quality work and excellent clean up. I will certainly call Donnelly for any future needs We also decided to replace our ancient bathroom fixtures for both sink and tub/shower. James did excellent work. We are happy with the expert help from Donnelly
    Don Koeneman
    2 days ago
    Very professional and great service
    TBS 2-69
    2 days ago
    Stanley and King are knowledgeable and experienced. They worked diligently till the job was finished. Very polite and respectful young men. They also were problem solvers to adjust the new equipment to the space available to them. I would recommend both men to anyone. I am pleased. Stanley took the time to explain everything to me, King went above and beyond his job.
    Ali Brozenske
    3 days ago
      Read Our Reviews

      Donnelly’s Proven Process

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

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        Recognized for Excellence by Customers and Industry Professionals Alike