Denville sits where Route 46, Route 10 and I-80 all come together, and the Rockaway River runs right through its downtown. Around that center the township is a set of lake neighborhoods — Indian Lake, Cedar Lake, Rock Ridge — where a lot of the housing started life as summer cottages and was winterized later. Cottage conversions and a river through the middle of town add up to steady sump pump, drainage and undersized-heating work.
Heights Plumbing, Heating & Cooling is a family-owned, licensed and insured plumbing and HVAC company serving the township of Denville in Morris County, New Jersey. ZIP 07834. We offer same-day service, on-time arrival and upfront No Worries Pricing on every job, and we handle residential and commercial work.
What We See in Denville Homes & Buildings
- Former summer cottages around the lakes were insulated and heated after the fact, so it is common to find a system that was never sized for a year-round house.
- Low ground along the Rockaway River has flooded the downtown area in past major storms, which makes sump pumps, discharge routing and backwater protection a real conversation here.
- Many lake-area homes sit on crawl spaces or shallow foundations, where exposed supply lines are the first thing to freeze in a cold snap.
- Newer colonial subdivisions on the higher ground have forced-air systems old enough that the condenser and the furnace tend to need attention in the same year.
Sections of Denville we serve include Indian Lake, Cedar Lake, Rock Ridge, along with every other part of the township.
Popular Services in Denville, NJ
These are the services Denville customers call us for most, based on the local housing and building stock.
Plumbing Services in Denville
Our licensed plumbers handle water heaters, drain cleaning, sewer line repair, leak detection, gas lines, repiping and fixture work for Denville homes. See all plumbing services.
Air Conditioning Services in Denville
AC repair, maintenance, replacement and ductless mini splits for Denville homes, sized with real heat gain calculations by our mechanical engineer. See all air conditioning services.
Heating Services in Denville
Furnace, boiler and heat pump repair, maintenance and installation, including the steam and hot-water systems common in older Morris County homes. See all heating services.
Commercial Plumbing & HVAC in Denville
Denville's commercial base is its walkable Broadway downtown plus the retail, restaurants, medical offices and small professional buildings strung along Route 46 and Route 10. Our commercial division handles rooftop units, commercial boilers, walk-in coolers and commercial plumbing, with an electrical engineer on staff for the wiring. See all commercial services.
Denville Plumbing & HVAC FAQs
Our Denville lake house was a summer cottage originally. Why is it so hard to heat?
Because the heating system usually predates the insulation and the additions. We run a heat loss calculation on the house as it exists today, then tell you whether the right fix is duct and insulation work, a properly sized replacement, or a mini split for the coldest room.
Do we need a sump pump if our basement has only taken water once?
Often yes, and the once is the reason. A pump with a sealed pit and a correctly routed discharge is far cheaper than a finished basement, and we will also look at whether grading or a failed gutter line is feeding the problem.
Can pipes in a crawl space be protected without finishing the whole space?
Usually. Insulating the lines, air-sealing the foundation vents near the piping and relocating the most exposed runs solves most freeze problems. We look at where the pipe actually is before quoting anything bigger.
Nearby Service Areas
We also serve these neighboring communities: