Delaware's premier residential HVAC installer
Mon - Sat 8:00 - 5:00        


We proudly offer the following services

When your HVAC system breaks on the day a 90-degree heat wave (or a single-digit polar vortex) is scheduled to arrive, don’t waste a minute and call Gillespie HVAC right away. We take the comfort of our clients seriously, which is why we offer emergency repair service for HVAC issues.

Whether you are replacing an old or failed HVAC system or looking to install high-quality, durable equipment in a new construction project. Gillespie HVAC can provide these quality HVAC installation services to Kent and Sussex Counties. Give us a call today to schedule your free estimate.

Maintenance is not only for older HVAC systems. Having regular maintenance completed on new systems is essential to keeping their performance maximized and also required to keep manufacturers warranties in place. We offer both one time plans and comprehensive annual agreements.