Donnelly's maintains, installs, and repairs all brands of gas furnaces and gas boilers, central air conditioning units, heat pumps, humidifiers, and whole-house filtration systems. The company also provides free estimates for HVAC replacements.
Donnelly's offers a 100 percent satisfaction guarantee.
Donnelly's is a member of the Plumbing-Heating-Cooling Contractors Association, the Air Conditioning Contractors Association, and the Nexstar Network.
The company is a second-generation, veteran-owned business with over 45 years of experience.
Donnelly's employees must pass background checks and drug testing. Field staff wear uniforms with name badges and drive vehicles clearly marked with the Donnelly's logo.