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Top-Rated HVAC & Plumbing Services in King of Prussia, PA

Donnelly’s Cooling, Heating & Plumbing has offered exceptional plumbing and HVAC services to the King of Prussia area since 1972. With upfront pricing, free estimates, and same-day service, we’re your go-to expert for everything home-related. Whether you’re experiencing a plumbing leak or need HVAC maintenance service, our knowledgeable specialists are here to help.

If you need assistance with your HVAC or plumbing system, contact the pros at Donnelly’s Cooling, Heating & Plumbing today.

 

Our Plumbing Services

Our licensed and insured plumbing professionals have extensive knowledge in installing, repairing, and maintaining your plumbing system. Turn to us for assistance with:

What to Do if You Encounter a Plumbing Leak

If you encounter a plumbing leak in your home, turn off your water supply line to that area of piping. Most vanities and sinks have water shut-off valves right under the sink. If you can’t locate a shut-off valve near the site of the leak, then shut off your main water supply valve. This will prevent future water leakage until one of our plumbers can repair the leak for you.

It’s necessary to get repair service promptly, as water can end up causing extensive damage to your home in a short amount of time. Not all plumbing leaks are obvious. Hidden leaks can be identified by higher-than-normal water bills, wet drywall, and yellow water stains.

Air Conditioning Services

When the summer heat arrives in King of Prussia, it can be unpleasant. Fortunately, a well-functioning home air conditioning system can be all you need to stay safe and comfortable. It will also remove excess indoor humidity to keep your belongings safe from warping and mold growth. Our team offers comprehensive AC services, including:

Our HVAC technicians can assist with your ductless mini-split AC systems and suggest products that can help enhance your indoor air quality. With our help, you can rest assured that your family is breathing in safe air while relaxing at home.

Heating Services

When cold winter weather hits, you’ll spend more time indoors. Having a reliable heating system that functions optimally will help ensure that your household stays warm and your heating bills stay affordable. Look to us for:

We service all heating systems, including boilers, furnaces, and heat pumps.

Choose Us for Plumbing & HVAC Services in King of Prussia

Your home’s plumbing and HVAC systems are some of its most important components. To ensure they remain in tiptop shape and receive quick repair service when you experience an issue, you need to have a reliable professional you can trust.

Donnelly’s Cooling, Heating & Plumbing is a dependable and professional company with background-checked technicians who can service all different brands of systems. We also offer emergency repair services and discounts for veterans, seniors, and military members.

Contact us online now to schedule HVAC or plumbing services in King of Prussia, Pennsylvania.

 
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Our Reviews

See What Your Neighbors Are Saying

We were extremely satisfied with the service provided by Donnelly’s. From start to finish, they were extremely professional and kept us informed every step of the way. Our technician, Mike Wilson, was fantastic. He was very knowledgeable and courteous. We were very happy with the project…

Anthony M.

Anthony M.

Donnelly’s Heating, Cooling & Plumbing provided excellent service for our home. Domingo C. was very knowledgeable and answered all of my questions (and there were many!). We ended up with an issue, and he stayed until it could be resolved. Jake H. and his skilled team…

Jill C.

Jill C.

Can’t say enough about how great my water heater replacement experience was. Service tech, Joe was the best; Knowledgeable, professional, and kind - he did such a great job. I highly recommend contacting Donnelly’s for your plumbing needs.

Kristen T.

Kristen T.

All around good experience for the installation of a combi boiler. The sales process was good and they were willing to negotiate which was appreciated. I set up the install two weeks out at the time of the sale and they arrived on time today to…

Todd A.

Todd A.

Our whole experience with Donnelly's was spectacular. We really appreciated the honesty and clarity throughout the whole process. When they came out for a quote we felt like all of our questions were answered and their proposal gave us exactly what we needed at a very…

Racheal B.

Racheal B.

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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.​