

Our Reviews
See What Your Neighbors Are Saying
Donnelly's Cooling, Heating & Plumbing proudly serves clients across the Greater Philadelphia area, including Montgomery County and Lansdale. Our commitment to delivering exceptional service is evident in the glowing reviews we receive from our valued customers.
Our team is dedicated to providing the highest level of expertise and customer care. The positive feedback and testimonials we receive highlight our dedication to excellence in every job we undertake. Whether it's routine maintenance, emergency repairs, or new installations, we strive to exceed your expectations.
Nick was an absolute treasure. He was very knowledgeable, helpful, and patient with my lack of experience with the newest technology. I really appreciated him as well as the polite contact with the office staff. I highly recommend Donnelly's.
Mariann D.Outstanding service as always. Rob H. was friendly, professional, and efficient. He did the annual maintenance/checkups of the AC systems, cleaned the outdoor units, and ensured the systems were in tip-top shape. He kept me apprised along the way, answered all my questions, and ensured that I was comfortable with everything he was doing. I recommend Rob highly for servicing and maintenance of HVAC systems and am always happy with his work. As always, a good experience.
Paul H.We had an awesome experience with Donnelly's. We had a new water softener, water heater, and new toilets installed. The technician Nick Lenzi was great. He was thorough and honest throughout the whole process! Everything turned out great!
Neha P.Get Started
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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.