Our Service Area

Donnelly’s Cooling, Heating & Plumbing Has Served the Greater Philadelphia area since 1972

Donnelly’s Cooling, Heating & Plumbing has proudly served the Greater Philadelphia area since 1972. We provide top-notch air conditioning, heating, and plumbing services to keep your Pennsylvania home comfortable all year. Whether you need routine maintenance, a fast and easy fix, or an entire system upgrade, our licensed and insured professionals can help.

We know unexpected repairs and upgrades can be a financial strain. That’s why we offer flexible financing options to fit your budget. With Donnelly’s Cooling, Heating & Plumbing, you can invest in home comfort without worrying about the cost. Low interest rates and affordable monthly payments let you prioritize comfort and efficiency without breaking the bank.

Customer satisfaction is our top priority, something you’ll notice upon your first interaction with us. Our clients appreciate our same-day emergency services, free estimates, and transparent, upfront pricing. Don’t just take our word for it — check out our glowing reviews to see why homeowners trust us for their cooling, heating, and plumbing needs.

Check out our service areas below and contact us online to schedule an appointment.

Why Choose Us?

When you choose Donnelly’s Cooling, Heating & Plumbing as your home comfort specialists, you experience what it’s like to work with a true professional. We show up on time, listen to your needs, and clean up after ourselves.

With the ability to work on any brand of HVAC and plumbing equipment, you know you can rely on us. We communicate clearly and provide estimates and warranty information in writing. Our technicians are trained, experienced, and background-checked for your peace of mind.

Request an estimate for reliable and affordable HVAC and plumbing services in the Greater Philadelphia area. Let us show you why we’re the trusted choice for home comfort needs.

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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

Free

Water Pressure Test

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

    Our Services

    Cooling

    Heating

    Plumbing

    Drain & Sewer

      Cooling

      Heating

      Plumbing

      Drain & Sewer

      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.​
        About Us
        Our Reviews

        See What Your Neighbors Are Saying

        Very happy with my choice of calling Donnelly's. The Plumbing Technician John Dwyer was very nice and exceptional in his professionalism. John explained what needed to be done and was very detailed and thorough in his work. I would highly recommend Donnelly's to family and friends. I wanted to update to add a review of service I had today from HVAC Technician Domingo Clendaniel. Domingo came out to do a heating system check up and was very pleasant and professional in his service. He was thorough and detailed with telling me what was going to be done and how everything looked. As with my plumbing service I am equally as satisfied with my HVAC service from Donnelly's and am looking forward to having them for any future needs and preventative maintenance. My service from Donnelly's continues to be exceptional. I had a repair done today on my toilet and Oscar (plumbing technician) arrived so quick and diagnosed my issue and made the repair in a timely and professional manner. I will continue to use Donnelly's for my HVAC & Plumbing service needs.
        George S.
        4 days ago
        Had a quick complete quality serviced
        Tim Diorio
        4 days ago
        Your technician was very professional and competent, I was very satisfied with his visit. Overall I am a pleased customer, thank you for your services past and present.
        Fred Ehrhardt
        4 days ago
        He was prompt and efficient and professional
        nancy munyan
        4 days ago
        We called Donnelly's this morning after finding water leaking from our toilet. Our regular plumber couldn't come until Thursday when our house is being shown to realtors. Donnelly's was able to set us up for today. Caleb called and arrived promptly. He reviewed the problem and options and went to work. He explained what was done and the warranty. This was a great help during a somewhat stressful time
        Sharon Sullivan
        4 days ago
          Read Our Reviews