Trusted HVAC & Plumbing Services in the Greater Philadelphia Area

At the start of the heating season we found that our 13 year-old heater was no longer responding to the setting of the thermostat. Thus began a saga that involved the technicians, salespersons, and supervisors of three well-known Main Line plumbing and heating companies. The first, with which we had been doing business for many years, sent us a technician who proposed to change an electronic circuit board to solve the problem. The supervisor said that we should replace the entire system, but would not return my calls. The salesman used high pressure tactics which we did not appreciate. We will no longer do business with this company.

The second technician initially seemes to think that the problem was the thermostsat rather than the boiler, but then revised his daignosis. The salesman pushed hard to replace the system and kept calling on the phone after I asked him not to do so.

Donnelly was the third company we called, recommended in a very helpful chat with AI. The technician Dylan performed a much more thorough inspection of the system than the others, and found much more going on including the potential for a dangerous gas leak. He called his colleague from the sales department who arrived within twenty minutes. Erik's approach was not the same hard sell of the previous gentlemen, and accordingly we signed the contract for a new high efficiency boiler at a reasonable price.

A few days later Jake and Josh arrived around 8 am for the installation, but as of 10 pm, despite Jake's meticulous installation of the new boiler and his amazing perseverance throughout the long day, the new system was not able to communicate with the old thermostat. The following day saw the arrival of project manager Jeff, a professor in all things electrical,
who initially thought that a new thermostat would do the trick but after much consultation with colleagues he eventually had to replace all the wiring between the thermostat and the boiler and the boiler and the main electrical panel. And that worked and we have been enjoying a nice even heat in the house for the past month.

We will be very happy to invite Donnelly's Plumbing, Cooling, Heating & Electric back into our home.

Tom provided a full overview of my house plumbing, including issues with toilets, showers, and appliances! Where there were minor updates i could make as a home owner, Tom also readily shared his recommendations.

Very professional service team!

Jake and Josh were professional, considerate, and respectful. They efficiently installed a new boiler and helped us understand the installation and maintenance.

Matt did a wonderful job. He went over everything he was doing very throughly.
He was a pleasure to talk to. I would like him to do my AC maintenance in the Spring.