Plumbing & Heating Solutions

Quality repairs, expert installations, and dependable maintenance for your home or rental property. Serving Princeton & Mercer County with pride.

Our Services

Your one-stop shop for heating, cooling, and plumbing needs.

We diagnose and repair all major brands to keep your home warm and safe.

Fast, thorough drain cleaning to keep your plumbing running smoothly.

Expert installation and repair of traditional and tankless water heaters.

From fixtures to full renovations—modernize your bathroom with expert plumbing.

Expert pipework and underground plumbing for new builds, expertly coordinated from blueprint to inspection.

We design and install water supply and drain lines throughout your new home, ensuring optimal flow and code compliance from the start.

All underground plumbing and rough-ins are expertly completed before the foundation is poured, guaranteeing long-term reliability.

We handle main sewer and water line connections for hassle-free service and inspection approvals.

Proper venting protects your plumbing system and home air quality—our team ensures every vent is perfectly routed.

We provide precise stub-outs for sinks, showers, tubs, laundry, and more—ready for stress-free finish plumbing.

Modern, efficient heating solutions—from new installs to expert repair and annual maintenance.

New boiler installs and hydronic heating systems, including all piping, circulator pumps, and manifold setup for consistent comfort.

We install both classic cast iron and modern radiators, as well as hot water baseboards—zoned and controlled for maximum efficiency.

Enjoy even, energy-saving warmth with radiant floor heating and advanced thermostat zoning for every room.

From yearly system flushes to fast no-heat service calls, we keep your heating system running smoothly all season.

Solve uneven heating, cold spots, or upgrade from steam to hot water—our team delivers lasting solutions for comfort and efficiency.

A look at our recent projects and quality results across Princeton homes and properties.

See why local clients trust KP Heating & Plumbing for all their needs.

We renovated our kitchen and KP’s team was professional and tidy—fantastic results!

The Chens

Always on time, courteous, and transparent with pricing. Five stars!

Mark S.