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ServiceMark Heating, Cooling & Plumbing – Your Professional and Reliable HVAC Company in Wilmington and other parts of New Castle County, DE

You can rely on ServiceMark Heating Cooling & Plumbing for all your HVAC maintenance and plumbing needs. Unlike many HVAC companies in Wilmington and other parts of New Castle County, DE, we work diligently to provide our customers with top-quality equipment installation and service delivered 24 hours a day, 7 days a week.


ServiceMark Heating Cooling & Plumbing

301 Harvey Dr. Newport Industrial Park
Wilmington, DE 19804
(302) 421-9311

Hours of Operation:
24/7/365 – Call Answering


Service Areas:

New Castle County, Delaware

Click here to see a full list of the communities we serve >


ServiceMark Heating Cooling & Plumbing of New Castle, DE offers a full range of HVAC services to homeowners looking to increase their home’s efficiency and comfort while, at the same time, reducing their monthly utility expenses. In addition to offering full heating and cooling maintenance, repair, and replacement services, we also offer full plumbing contractor services, including maintenance, repair, replacement, and complete remodeling projects.

We are an insured, licensed, and bonded HVAC Company with over 60 years of expert local service experience. Our skilled team of technicians receives ongoing training, as well as drug testing, driving record checks, and strict background checks. We have a 97% customer satisfaction rating, which has been proudly earned by offering our customers fair pricing, superior products, and quality workmanship.

If you’re looking for HVAC companies in New Castle County, DE that can provide you with the top quality equipment and service, call on ServiceMark Heating Cooling & Plumbing as your company of choice. We work hard to provide our customers with the best possible installation, repair, and maintenance services at reasonable prices.

For more information or to schedule an appointment, contact us today at 1-800-474-5200, or fill out an appointment request on our website.

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