Heating services in Delaware

Keep your home comfortable all year long with First Class heating service.

heating services in Delaware

Make your family comfortable with home heating repair.

0% interest on new HVAC installs by First Class

$3000 REBATE &


On Qualifying New HVAC Systems

0% interest on new HVAC installs by First Class


0% Financing Available

Rebates Up to $3,000


Main Services





Our Clients

Kevin Jones

First Class saved our bacon again. We have a Sea Colony weekly rental that is booked solid for months in advance. When the AC died they got there early and fast on a Saturday. Sadly the salt air had essentially killed our old unit so a complete new system was needed. First Class got it priced, ordered and installed in just a couple of days! Now our guests will be comfortable all summer. Great people at First Class!

Katherine Jones

Today First Class came to do their yearly AC check-up. Johnny was very courteous and professional as he conducted his check list, and very tolerant of his new "assistant", my overly friendly lab! I appreciate the prompt service, as well.

Jane Mahoney

We recently had our crawl space encapsulated and our air conditioning units replaced courtesy of First Class. We could not have been more satisfied with the service and professionalism of the sales men and both crews who worked at our house. Duane, who sold the AC units, was prompt and thorough in evaluating our situation and recommending what would best meet our AC needs. He also recommended we have our crawl space inspected by Al who is an expert in home performance. This was something we had talked about doing so we jumped at this opportunity. Al stopped by on the next day, inspected our crawl space, and impressed us with how knowledgeable he was about the health of a home. We decided that the recommendation he made was right for us. Both Duane and Al collaborated to schedule the work to be done quickly and in the most efficient way

The AC installation crew included Ben, Chris and Chad as well as Jacob and Alex. They were professional and efficient and very considerate while working in our home. They answered all questions and were very patient in explaining how to manage and control the new "smart" thermostats installed.

The crawl space encapsulation crew included Nate, Gavin and Juan. Likewise, they were most polite, professional and efficient in completing the work. They went out of their way to make sure our house looked undisturbed after each day's work. In fact, the access to the crawl space now looks even better.

Thank you, First Class, for a job well done. Each of your employees mentioned above truly demonstrated your company's name.

Contact Us

Call Today!

(302) 934-8900
(302) 697-4200
New Castle:
(302) 834-5100
(410) 742-2121
Bethany / Fenwick:
(302) 539-0600
Lewes / Rehoboth:
(302) 539-0600
Seaford / Bridgeville:
(302) 337-8959
Dover /Milford / Milton:
(302) 697-4200
Salisbury / Ocean City:
(410) 742-2121
(302) 834-5100
(302) 933-0334
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New Castle: (302) 834-5100

Sussex: (302) 934-8900

Kent: (302) 697-4200

Maryland: (410) 742-2121