Heating & Cooling Contractors

Our technicians are highly trained experts, certified by some of the nation’s most recognized professional organizations

Keeping you cool
and warm is our goal.

Our crew services everything from gas boilers, to installing and repairing ductless air conditioning systems. We service radiators, water heaters, boilers, do tank conversions, ventillation systems, rooftop heating and cooling work


We strive to ensure each air system isn’t an ongoing burden, while still maintaining comfortable temperatures and air quality for occupants


We provide top-rated apprenticeship programs, and ongoing training and certification programs for our team to ensure every HVAC project is completed on time and within budget


We’ve spent decades building relationships and providing commercial spaces with the first-rate HVAC systems they need to function, be comfortable, and still conserve energy

Highly-trained, industry-certified master HVAC contractors pros

As a family friendly business, we value our customer service greatly

We provide affordable quality services for all our residential customers

For your convenience, we give free estimates for every job we do and work with each individual customer to assure affordability

We prioritize emergency calls so you can get the quickest service available

the Northern NJ Area

  • Bergen County
  • Essex County
  • Hudson County
  • Morris County
  • Passaic County
  • Sussex County
  • Union County
  • Warren County

When you have commercial or residential work that needs to be done quickly and with an eye for quality, look no further than Dov Lavan LLC