BBB Accredited Business Profile

Hentkowski Inc.

Hentkowski Inc.

(302) 998-2257

Hentkowski Inc.

50 years in business
3420 Old Capitol Trail
Wilmington, DE 19808
Fax Numbers
  • (302) 998-1591
Additional Email Addresses
BBB File Opened: 08/01/1974
Business Started: 01/01/1968
Business Incorporated: 12/30/1971 in DE
Type of Entity
Business Management
  • Ms. Barbara Roberts, Manager
Business Category
  • Heating and Air Conditioning
  • Air Conditioning Contractor
  • Boiler Repair
  • Electrical Contractors
  • Electrician
  • Heating Contractors
  • Ventilating Contractors
  • Water Heater Repair
  • Residential Air Conditioning Contractors
  • Electric Generator

Products & Services
Air Conditioners, Gas Furnaces, Oil Furnaces, Gas Boilers, Oil Boilers, Heat Pumps, Geothermal Heat Pumps, Mini-Split Systems, Ductless Systems, Gas Water Heaters, Oil Water Heaters, Electric Water Heaters, Tankless Water Heaters, Humidifiers, Air Cleaners, Air Purifiers, Whole House Dehumidifiers, Energy Recovery Ventilators, Wireless Thermostats, Programmable Thermostats, Thermostats, Generators
Service Area
We service the following area(s): CECIL County, MD, CHESTER County, PA, NEW CASTLE County, DE
Alternate Business Names
  • John W. Hentkowski, Inc.
Licensing, Bonding or Registration
This business is in an industry that may require professional licensing, bonding or registration. BBB encourages you to check with the appropriate agency to be certain any requirements are currently being met.
Methods of Payment
  • Cash, Check, Visa, Mastercard, Discover & Financing through our financing partners.
Refund & Exchange Policy: 
Based on product or service provided.
BBB accredited business



We sell, install and service Residential and Light Commercial Heating & Air Conditioning systems.  We also sell, install and service water heaters, duct work, indoor air quality products, thermostats and whole house generators. 


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BBB Reason for Ratings

BBB rating is based on 13 factors: Get the details about the factors considered.

Business Profile

Licensing information is provided in the BBB Business Profiles to inform the public about industries that may require professional licensing, bonding, or registration. Better Business Bureau encourages you to check with the appropriate agency to be certain any requirements are currently being met.
BBB promotes truth in advertising by contacting advertisers whose claims conflict with the BBB Code of Advertising. These claims come to our attention from our internal review of advertising, consumer complaints and competitor challenges. BBB asks advertisers to substantiate their claims, change ads to make offers more clear to consumers, and remove misleading or deceptive statements.
BBB reports on known significant government actions involving the business's marketplace conduct.
BBB reports on a company that is out of business for one year from the date the company closes its doors or ceases to do business.
BBB reports on unauthorized use of the Better Business Bureau's name and/or logo for as long as the business continues to use it in any advertising, or for one year after the business ceases any repeated unauthorized uses.
BBB reports on a business’s bankruptcy as long as the business remains in bankruptcy.
BBB reports when mail sent to the business was returned by the Postal Service.

Hentkowski Inc.

Hentkowski Inc.


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