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.

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

    Caleb is a delight. He called ahead and arrived in good time. He checked both toilets and fixed the one that was flushing itself. He explained everything he did. He was polite and respectful. Caleb is welcome here any time.
    Sarah Krause
    2 days ago
    Efficient and clean operation
    Frank OConnor
    2 days ago
    Tech was on time, professional and did quality work.
    David
    3 days ago
    Amazingly fast service! We had an emergency pipe leak and they came out same day and fixed it. Walked me through the issue so I could make an informed decision.
    Tiffany Braxton
    3 days ago
    We called Donnelly for numerous small plumbing issues… Drains that wouldn’t hold water, a broken sprayer on a faucet, etc. Nick came and did an amazing job… Fixing the drains and identifying that the broken faucet was really a water pressure problem that should be remedied for the safety of all of the house plumbing. Nick was polite, efficient, and knowledgeable. He was very patient explaining the problems and the resolutions and educating us on how various shuttle valves worked. It was an excellent service experience! Update 3/25/2025 We continue to use Donnelly and especially Nick for our plumbing issues. He was here again today fixing a valve on a sprayer and replacing an expansion tank on our water heater. He could not be nicer and more efficient ... always taking the time to clearly explain what he is doing in language we can understand. Totally recommend Donnelly, especially Nick.
    Joan Engel
    3 days ago
      Read Our Reviews