Donnelly is very reliable and constant in their approach to their business. We can always count on Donnelly to respond quickly in an emergency and with great follow up.

Donnelly is very reliable and constant in their approach to their business. We can always count on Donnelly to respond quickly in an emergency. Donnelly is extremely professional, reliable and always there when you need them—any time day or night. They’re courteous with their client’s best interest at heart.

We’ve worked with Donnelly Mechanical for nearly 25 years and of all the things which they excel at, what we appreciate the most is the fact that we always deal with the same maintenance crew. They know the system in every one of our buildings inside and out so we don’t have to start from zero whenever we have a problem or (especially) an emergency repair. Office tenants have no desire to be uncomfortable and can be highly impatient. Time lost to educating a new mechanic about our systems is a problem we never have to deal with, thanks to Donnelly.

I have a great deal of respect for Donnelly Mechanical as a company. It’s a well-run organization full of competent and friendly people. I enjoy working with them. Their quick response and quality of work gives me complete confidence in their ability to service needs. Thanks for jobs well done this past year. I look forward to working with you in the coming years.

Whenever we have an air-conditioning issue, Donnelly Mechanical is the company I call. Donnelly is a well-run organization; full of responsive, skilled and trustworthy people. It only takes one phone call and my issue is resolved.