Data
Heating and air conditioning companies in Delaware
There are 547 heating and air conditioning companies in Delaware (CityPreferred count, October 2026). Wilmington has the most (102), then Newark (55).
Reviewed October 1, 2026
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Delaware cities
| City | Companies |
|---|---|
| Wilmington | 102 |
| Newark | 55 |
| New Castle | 37 |
| Dover | 28 |
| Middletown | 23 |
| Bear | 22 |
| Lewes | 22 |
| Millsboro | 22 |
Delaware and the rest of the country
Delaware has 547 of the 169,801 heating and air conditioning companies in the country (0%). All states.
What is counted
Independent businesses that do this work, for homes or for businesses. Suppliers, stores and national chains are left out. Being counted does not mean a company is licensed, insured or recommended. A city is listed when it has 20 or more. How we count.
Questions and answers
- How many heating and air conditioning companies are there in Delaware?
- 547, by CityPreferred's count as of October 2026.
- Which Delaware city has the most?
- Wilmington, with 102, followed by Newark with 55.