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

    Joe was awesome. Kept it simple, was very straightforward, did not try to upsell what I didn’t need, respectful of property, very clean when all the work was done
    Mike Tiger
    2 days ago
    Needed PVC pipes fix as the current pipes separated from the original connection. Oscar was very cordial and explained in detail so I can understand in layman’s terms. I highly recommend Oscar to anyone.
    Kiet Luong
    2 days ago
    Travis Besch is super! Very professional & knowledgeable - 4.0!!!! Took the time to explain everything and the repair is beautiful. Very professional!!
    Skip Wiegand
    2 days ago
    Great experience overall! Keith was very responsive and professional throughout the process
    Ryan DeLeo
    2 days ago
    The whole team has been amazing. They listened, identified the main issue with my hvac unit. Replaced the entire unit in 1 day and everything is working fine now. They were above and beyond professional and look forward to having them service my unit for the coming years
    Sar Patel
    2 days 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

        Free

        Second Opinion on Sewer Line Replacement

        Call for Conditions & Restrictions / Present Coupon at Time of Service / Not Available to Combine with Other Offers

        $500 Off

        Full Sewer Install Replacement

        Call for Conditions & Restrictions / Present Coupon at Time of Service / Not Available to Combine with Other Offers

        $100 Off

        Complete Water Filtration System

        Call for Conditions & Restrictions / Present Coupon at Time of Service / Not Available to Combine with Other Offers

        Get Started

        "*" indicates required fields

        Name*
        Name*

        Recognized for Excellence by Customers and Industry Professionals Alike