Get matched with top thermostat installers and replacers in Royersford, PA

"Alec was excellent! Great Knowledge of Oil Furnace. Fast and efficient. Very Helpful and Honest as well. Very Customer Focused and Great Personality to deal with!"

"Excellent customer service. Immediate response to air conditioning problems I then replaced the whole system I will use them for gas heater tune up in the fall A. Breese Coatesville PA"

"TVs were switched & new tv holder installed well. Gentleman was very kind & personable."

"The service went very well. The whole process went smoothly from scheduling to finishing the project. Our handyman Brian was great. Would definitely use again for any of the services they offer."

"A problem with the thermastat and it was taken care off same day. Quick response, friendly service."

We are a leader in quality high efficiency Air conditioning and heating system installations. We do it the right way and provide financing options to make it affordable for our customers to upgrade and save money in the long run.

In 1972, Donnelly’s Cooling, Heating & Plumbing began serving Pennsylvania residents with premier plumbing services and later expanded to add their superior HVAC services. As the area’s top choice for plumbing, heating, and cooling service, we’re proud to offer unmatched professionalism and quality results.\n\nWith same-day and emergency services, our team is always available for your home service needs. Plus, with service for all brands and free estimates, you can trust you’re in excellent hands with our team.

"The 2nd floor HVAC replacement went smoothly. the 3 installers were on time, and explained what they would be doing. they were professional and completed the job on time. afterwards they explained the warranty registration process and servicing. the unit works great."

"All workers arrived on time, were polite and completed work in a timely fashion. Accidentally broke our faucet while replacing flew valve & replaced it in a timely way."

"Bill was very responsive, prompt, professional and extremely knowledgeable. He was even able to save me a few hundred dollars by removing one of the components that was still working from the dead unit and put it in the unit which needed fixing. He'll also be getting me a quote to replace the non-working unit. I would highly recommend Bill's company."