“We felt confident that our AC system was in good hands.” — Jeffrey F.

Peggy B.

Everyone in the organization has always provided exceptional customer service. They are on time, professional and give a complete explanation for the service they recommend. Definitely an A+.

“I’m so glad I chose this company to check and clean my furnace. I was quite impressed with the communication and was sent a photo of my tech before his arrival. He was friendly, knowledgeable, and efficient, and explained everything to me about my furnace. I highly recommend Donnelly’s.”
"Donnelly’s is great because they are prompt and efficient with great customer service. Their technicians are knowledgeable and get the job done quickly. A customer service oriented company." — Joan M.
“I was blown away by how responsive and friendly everyone I spoke to.”
"The technician arrived on schedule and conducted himself in a most professional manner. Following the requested annual maintenance inspection he proceeded to provide me with a report and options for repairs. I’m pleased with the work done and the respect shown for my home. All work was done in a clean and organized manner." — Charles T.
“Been using Donnelly’s for over 40 years. They are the best!” — Linda S.

Dave B.

I seriously could not be happier with the outcome! My monthly energy bills in the summer are now almost 40% lower than what they used to be. The solution cost well less than I thought it would, and will even pay for itself after years of significantly increased efficiency. Thanks, Donnelly’s!! Couldn’t be happier!!