Top-Rated HVAC & Plumbing Services in Lansdale, PA

I was surprised that the guys didn’t get finished till 10:30 at night. Part of the reason is that we have zone control dampers, which added more work. I don’t like that each zone has a thermostat and not just a sensor.

We had a fantastic experience with Donnelly's Plumbing, particularly with Tom, who came out to address a leak under our kitchen sink, at the garbage disposal. We really appreciated how quickly Tom was able to respond to our call and arrive at our home. Tom was not only incredibly friendly and kind, but he was also highly efficient. He quickly assessed the issue, made clear recommendations, and then expertly performed the necessary repairs, ensuring everything was correctly reinstalled. While he was here, Tom also provided valuable recommendations for a new water softener and a replacement garbage disposal. What stood out was his complete lack of pressure; he simply offered information and options, which we truly appreciated. We ended up moving forward with most of his suggestions and now have clear information for follow-up on the other items. The entire process was smooth and stress-free. We're very grateful to Tom for his prompt, professional, and genuinely helpful service. We highly recommend Donnellys Plumbing!

The technician was sharp and did a good job for me.

Nick came to my home today to replace our water heater. Nick is excellent!!! He explained everything to me before he started. Quoted the price while giving me options. His work is outstanding!! He was very clean and labeled everything for me. He explained the valves at the end. Which is very helpful. I could not be happier with this very professional outcome. In closing, the entire time Nick kept the building code in mind to make sure if I ever had a home inspection there would not be any problems. What plumber does that? Thank you Nick. You are truly a gifted plumber!

Professional and timely service. Tech was knowledgeable and provided quick service.

Derrick was very knowledgeable and explained everything. Excellent plumber

Tom provided excellent service, replacing a water shut-off valve. He was very kind and knowledgeable. He went beyond expectations.

It was a very efficient process from beginning to end. Everyone we dealt with was friendly, polite and courteous. I would recommend your company. John O'Hara and Joe Albert were informative and easy to work with our situation.

Donnelly's representative, Matt, arrived promptly at our house and inspected our a/c unit. He was very thorough and friendly and recommended a replacement capacitor which he showed was highly rusted. He immediately replaced to item at a fair price. I would recommend Donnelly's in the future.

It felt to me like everyone at Donnelly - customer service, sales, installation and repair - is interested in more than just making a buck. When an entire HVAC system goes down in summer, you want someone like Donnelly there to be respectful, understanding, patient, considerate and receptive of your situation. They got a quick appointment scheduled, explained all the options for getting the A/C back up and running (which sadly meant replacing it), worked above and beyond in researching and providing the best available new system, then sent out an awesome duo to complete the entire system installation in one day - July 3rd, no less!! The house is cool again just in time for a hot and humid day. Thank you to everyone at Donnelly - especially Tyler and his superhero sidekick for the installation; and the ever-patient Dillon in sales. MM It’s October and we’ve now joined Donnelly as a member household which basically gets you three checkups per year and discounts on any work that needs to be done. We just had a plumbing checkup with Nick (and his capable sidekick Joe). They addressed a running toilet, leaky drain and a clogged sink with skill and professionalism and were able to toss in a side dish of humor to what had been a hectic start to the day for at our house. Great work, great humans. They double checked and triple checked everything to be sure there were no issues with their repairs and then explained all that had been done. While plumbing is always expensive (like most other household repair costs) the membership brought a discount on the job. We continue to enjoy our new relationship with Donnelly. Thanks to Nick, Joe and all of the support staff at Donnelly. Update Jan 3, 2024 - another appointment with Nick L from Donnelly and another 5-star review. Everything has been great from scheduling (and having to reschedule) to the finished job. Nick kept me posted on each step including the materials he was using a why. All costs were explained up front and I’ve not had any markups to the original job quote. Thanks to Nick L and everyone at Donnelly’s for continued exceptional service and dedication to your clients. Update Feb 29 2024 - Had a routine maintenance check today with Rob H. - another positive Donnelly experience. He was friendly, knowledgeable, answered questions about the 9-month old HVAC system and provided skilled service. When finished, he made a few recommendations for us to consider - no high pressure up-sale like you get with other companies. Donnelly continues to be a reliable company for our heating and plumbing needs. Thank you, Rob and Donnelly! Update May 1 2024: Rob came out to perform the spring maintenance check on our new Rheem Endeavor HVAC SEER 2 system that Donnelly had installed in late 2023. Everything is still running smoothly and our winter electric bills were cut almost in half! Rob is a smiling, friendly, knowledgeable and thorough young man who definitely aims to please his customers. Donnelly continues to provide excellent technicians, service and support for us. Update June 12, 2025: Khalij serviced our now 2-year old Rheem Endeavor today. He arrived on time with a dazzling smile, ready to get to work! He was thorough and focused in his inspection of both our HVAC and condenser units. He was a friendly, polite and professional young man who clearly loves his job and wants to ensure that his customers are satisfied with their HVAC Systems. Thank you for your help today, Khalij! Another 5-star visit from Donnelly. They continue to prove they’ve got the top notch professionals to handle our HVAC and plumbing needs.

Joe did a great job!.. He listened to my attempts at ridding my sink drain of the bad odor that was plaguing me for weeks. He walked through with me the drainage piping, sizing up possible sources and causes of the odor. I'd been wondering if it was caused by partial plugs at various possible locations. But, Joe felt it was from the sink drain itself, even though I'd put lots of baking soda and white vinegar down it. He was right; and, he had the job quickly completed, leaving my bathroom spotless and even clean smelling! JJ

Our plumber Dan was incredibly knowledgeable and professional. He took his time to make sure everything was done right, fixed the toilet perfectly, and even gave me helpful tips to avoid future issues. It’s rare to find someone this thorough and honest. I’ll definitely be calling him again for any future plumbing needs!