New Castle DE HVAC | AC | Heater | Plumbing Repair Near Me


NEW CASTLE COUNTY de heating, cooling and plumbing

Heating, Air Conditioning and Plumbing Service and Installation in New Castle County, DE

New Castle County is the northernmost of the three counties of the state of Delaware and is named after the English city of Newcastle. New Castle County has the highest population and population density of any Delaware county, even though it is the smallest.

At ServiceMark, we always put our customers first. That is why homeowners in New Castle County, DE have trusted ServiceMark’s expertise for over six decades. From water heater maintenance, fixing leaky kitchen faucets to heating, air conditioning, installation and repair to energy audits and weatherization services, ServiceMark Heating Cooling & Plumbing is your reliable resource in providing whole-home solutions.

We pride ourselves on our enthusiasm and drive to provide the customer with 100% Satisfaction, and we also dedicate ourselves to giving back to the New Castle County community. The ServiceMark Community Support Team can be found sponsoring local little leagues, festivals 5K runs, and other charity-driven events.

We Proudly Serve the Following Communities in New Castle County, DE:


Our SERVICE is right on the MARK. Try out one of these services in New Castle County, and find out for yourself why people like you choose us for their home comfort needs:

Heating Service and Installation in New Castle County, DE

Don’t be left freezing in one of New Castle County, DE cold winters. Instead, rely on ServiceMark Heating Cooling & Plumbing for trusted heater service and repair for your house. We have highly trained staff service who know how to maintain all brands and types including gas, steam, oil, electric, propane – even geothermal systems! Get started with a ServiceMark heater tune up to prolong your equipment’s life, avoid costly service calls and save energy dollars! Then when it comes time to replace your old heating system, our sales team will provide you with the best options for high-efficiency heating equipment for your home comfort needs.

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Cooling Service and Installation in New Castle County, DE

Stay cool this summer with ServiceMark’s expert air conditioning repair and maintenance services. We service and maintain all types and brands of central air systems and heat pumps. Best part, if you have a service agreement, you’ll receive priority service. Avoid the discomfort, inconvenience, and cost of a central air conditioning breakdown this summer by scheduling for one of our local New Castle County, DE technicians to perform an annual tune up. Or, if you know you’re ready to replace your system, ServiceMark Heating Cooling & Plumbing team of NATE-certified experts can help solve any cooling challenges in your New Castle County home, including hard to cool rooms, temperatures and homes without ductwork.

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Plumbing Service and Installation in New Castle County, DE

You don’t need to search through your New Castle County phone book to find a quality plumber – just look to ServiceMark Heating Cooling & Plumbing. Our fully trained, licensed plumbers have been delivering first-rate services in New Castle County, DE for over 60 years. From repair of leaky faucets to high-efficiency boiler and gas or electric water heater upgrades (including money-saving tankless units), ServiceMark expert plumbers can take care of all of your wants and needs. Plus, did you know we do complete bathroom and kitchen renovations?

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