Donnelly Heating & Air Conditioning

Donnelly Heating & Air Conditioning is a family-owned HVAC contractor based in West Chester, Pennsylvania, serving Chester County for more than three decades. With 112 customer reviews averaging 4.4 stars, the company holds an A+ rating with the Better Business Bureau and employs state-certified technicians who handle installations and repairs across West Chester, Exton, Downingtown, and Malvern. Owner Tom Donnelly personally manages estimates and stays involved through project completion, whether the job is a routine repair or a complete system replacement.

What distinguishes Donnelly from larger volume-driven competitors is a consultative sales approach rooted in listening rather than upselling. Multiple reviewers specifically praised Tom for asking thorough questions about their household needs before recommending equipment, then presenting honest proposals without high-pressure tactics. The company specializes in heat pump retrofits suited to Pennsylvanias variable climate and installs Fresh Air Anti-Virus, Mold, Odor, and Dust Purifiers, an ozone-free air quality option that Bruce Bittenbender noted other local bidders did not offer. Installation crews hold relevant certifications and take time to explain system operation and efficiency settings after completing work, leaving job sites clean and orderly.

Customer stories from verified reviews illustrate this standard of care. Bruce Bittenbender selected Donnelly in May 2022 after receiving multiple bids for a heat pump replacement, citing Toms presale home visit and the installation crews detailed explanations of the new system. Samsung Galaxy described a heat pump replacement in June 2022 where Tom arrived on time, listened carefully to their concerns, and proposed a solution focused on their needs rather than maximizing the invoice. Brian Conway recounted a full HVAC installation completed in November 2025, praising the crews professionalism, punctuality, and quality of workmanship at competitive rates.