On Call NJ has built its reputation in Frenchtown on one simple promise: dependable plumbing, day or night.
Our technicians arrive in Frenchtown on time, in uniform, and ready to explain exactly what's going on before any work begins.

Local Plumbing, Heating & Cooling in Frenchtown
Many homes in Frenchtown were built decades ago, and aging supply lines and drains are some of the most common calls we get in Hunterdon County.
That's why so many Frenchtown homeowners keep our number handy. From the first call to the final fix, we focus on doing the job right and treating your home with respect.
Our Services in Frenchtown, NJ
We handle the full range of plumbing, heating, and cooling needs for Frenchtown:
Emergency Plumbing in Frenchtown
24/7 emergency plumbing repairs
View DetailsDrain Cleaning in Frenchtown
fast clog removal for sinks, tubs & main lines
View DetailsSewer Line Service in Frenchtown
main sewer line cleaning, camera inspection & repair
View DetailsWater Heater Repair & Installation in Frenchtown
repair & replacement for tank and tankless heaters
View DetailsPlumbing Repair in Frenchtown
leaks, faucets, toilets, fixtures & repiping
View DetailsHeating Repair in Frenchtown
boiler & furnace repair, service & installation
View DetailsAir Conditioning Repair in Frenchtown
AC repair, tune-ups & new system installation
View DetailsWhy Frenchtown Chooses On Call NJ
Upfront, Honest Pricing
You approve a clear price before work starts. No hidden fees on any Frenchtown service call.
Same-Day Availability
Many Frenchtown repairs can be handled the same day you call.
24/7 Emergency Response
We answer calls around the clock and dispatch fast when Frenchtown needs us most.
Workmanship You Can Trust
We stand behind every repair and installation we complete in Frenchtown.
Frequently Asked Questions
Because we serve Frenchtown and the surrounding Hunterdon County area directly, we're often able to reach you the same day, and quickly for true emergencies. Call 862-860-1807 and we'll give you an honest time estimate.
Yes. We stand behind our workmanship on every repair and installation we complete in Frenchtown. If something isn't right, we make it right.
Absolutely. Every technician who works on a Frenchtown home is fully licensed and insured, so your project is handled to code and you carry no liability.
We handle emergency plumbing, drain cleaning, sewer line service, water heater repair and installation, general plumbing repair, heating, and air conditioning for Frenchtown homes and businesses.
From the first call to the final fix, On Call NJ is committed to doing right by every Frenchtown customer.