Thanks for taking our survey!
Thank you for taking Hillside’s survey. Your feedback is important to us, and will continue to help us learn and serve our customers better.
If you are bored, we’d love to connect with you on Facebook!
(We have a lot of fun and sometimes share useful information about your heating and cooling needs).
Phone Numbers
- Delaware & Pennsylvania: 302-738-4144
- Maryland: 410-398-2146
- Fax: 302.738.5879
Mailing Address
Hillside Oil Heating & Cooling
40 Brookhill Drive
Newark, DE 19702