We'll Help Keep the Heat In

Rely on us for heating services in the Lambertville, NJ area

Is your heater overdue for an upgrade? Or maybe your system's thermostat is on the fritz? No matter the issue, Guaranteed Service is here to help. We're a licensed heating company serving residents in and around Lambertville, NJ. Once we take a look at your furnace or boiler, we'll give you an estimate and create a plan of action. You can trust that you'll be in good hands with us.


Communication is key for us. Before your appointment, you'll receive a confirmation text with your technician's name and photo. Contact us today to learn more.
























Choose the right team for the job

When it comes to partnering with a heating company, you can't go wrong with Guaranteed Service. Our customers choose us time and time again because:


  •     We have over 20 years of experience
  •     We offer a satisfaction guarantee
  •     We offer financing options on all of our services
  •     We have fully licensed technicians on our team 


Plus, we even offer electronic paperwork, so you don't have to worry about losing a thing. Reach out to us now to get the process started.

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