Heating, Cooling, Plumbing & Electrical Services in Denville, NJ

Denville summers are humid and the winters are cold. When your AC gives out in July or your heat stops in February, you need someone who can get there fast and fix it right. R. Poust has been serving homeowners throughout Denville and Morris County for more than 45 years across every trade: cooling, heating, plumbing, drains, and electrical.

One call. Every trade. Licensed technicians who tell you exactly what is going on before any work begins.

Call us at 973-520-7444 to schedule service.

Home Services in Denville and Across Morris County

R. Poust serves Denville and the surrounding communities throughout Morris County. Whether you are near Indian Lake, in the neighborhoods off Diamond Spring Road, or anywhere between Rockaway and Parsippany, our licensed technicians come to you. Here is what we handle.

Air Conditioning Services

Denville sits among 11 named lakes and water bodies. That much water in the area means summer humidity is not just uncomfortable, it puts a real load on your AC system. When your system cannot keep up or stops working entirely, we diagnose and fix it the same day when possible.

We cover:

Heating Services

Morris County winters are serious. A furnace or boiler that has not been serviced in two or three years is a no-heat call waiting to happen. Most homes in Denville run natural gas, and many of the homes built before 1970 still have original or aging equipment that needs attention before the season starts.

We cover:

Furnace repair and replacement
Boiler service and repair
Heat pump installation and repair
Ductless heating systems
Oil to gas conversion for homes still running oil
Annual heating tune-ups and maintenance

Plumbing Services

A large share of Denville homes were built between the 1940s and 1970s. Original plumbing in those houses often means aging pipes, water heaters that are well past their service life, and pressure issues that have been building quietly for years. Our licensed plumbers handle it all with same-day availability for most urgent calls.

We cover:

Leak detection and repair
Water heater service and replacement
Tankless water heater installation
Sump pump installation and service for homes near low-lying areas and the lake communities
Water softeners and treatment systems

Drain Services

Homes built before 1970 in Denville often have cast iron drain lines that are now 50 to 60 years old. These lines do not fail all at once. They crack slowly, collect buildup, and start showing up as recurring clogs before the real problem becomes obvious. We clear the blockage and find out what is happening deeper in the line before it turns into something bigger.

We cover:

Drain cleaning and clog removal
Hydro-jetting for stubborn buildup
Video camera inspection
Sewer line services
Trenchless sewer line repair for homes with finished driveways and landscaped yards

Electrical Services

Many Denville homes built in the 1950s and 1960s are still running 100-amp panels that were never upgraded. Add a heat pump, an EV charger, or a kitchen renovation to a system sized for a household with far fewer demands and you will feel it fast. Our licensed electricians assess what you have and tell you exactly what needs to happen before any work starts.

We cover:

Why Denville Homeowners Choose R. Poust

Over 45 years in Morris County means we have worked on almost every system type, brand, and situation a home here can present. From a 1950s colonial near Indian Lake with original cast iron pipes to a newer build in Rockaway that needs an EV charger and a panel upgrade, our technicians show up ready to diagnose, not to sell. You get a clear explanation of what is wrong, what it takes to fix it, and what it will cost before any work begins. That is why our customers call us back year after year.

Business Built on Quality is not just a motto. It is how we decide whether a job is done.

Schedule Service in Denville Today

Whether you need an AC repair before the next heat wave rolls in off the lakes, a plumber for a water heater that stopped working, or an electrician to upgrade a panel that was never meant to handle what your home runs today, R. Poust is ready to help. We serve Denville and a wide area throughout Morris County.

Call 973-520-7444 to book your appointment.