Customer Service

    • 24 Hour Emergency Service
    • Emergency Service Icon
    • Satisfaction Guaranteed
  • 24/7 Emergency Service
  • Same Day Service

Experience & Reliability

  • In Business Since: 2000
  • Family Owned & Operated
  • Insured
  • Licensed
  • Experienced Technicians

Air Conditioning Services

  • Air Ducts - Repair & Replace
  • Central Air - Cleaning & Maintenance
  • Central Air - New Install
  • Central Air - Repair
  • Commercial Cooling
  • Ductless Air Conditioning
  • Thermostats

Heating Services

  • Boilers and Radiators - New Install
  • Boilers and Radiators - Repair
  • Commercial Heat - New Install
  • Commercial Heat - Repair
  • Electric Heat - New Install
  • Furnaces - New Install
  • Furnaces - Repair
  • Gas Heat - New Install
  • Gas Heat - Repair
  • Heat Pumps - New Install
  • Heat Pumps - Repair
  • Heating - New Install
  • Heating - Repair
  • Oil Heat - New Install
  • Oil Heat - Repair
  • Radiant Floor Systems

Plumbing Services

  • Commercial Plumbing
  • Drain Cleaning/Unclogging
  • Fixtures Installed
  • Floor & Laundry Drains
  • Frozen Pipes & Drains Thawed
  • Garbage Disposals
  • Gas Lines Installed & Repaired
  • General Plumbing Repair
  • Hydro-Jetting Service
  • In-line Video Camera Service
  • Leaks Detected & Repaired
  • Pipe Replacements & Repairs
  • Plumbing for Mobile Homes
  • Plumbing Inspection
  • Sewer Lines
  • Showers & Tubs
  • Sinks, Toilets & Faucets
  • Sump Pumps Installed & Repaired
  • Underground Pipe Repairs
  • Water Heaters - Standard
  • Water Heaters - Tankless
  • Water Lines Installed & Repaired
  • Water Pressure Problems
  • Water Purification & Filters
  • Well Pumps Installed & Repaired
  • Winterization

Payment

  • American Express
  • Visa
  • MasterCard
  • Personal Checks

About Us

  • Whether its seasonal maintenance or repairs to a new system Nissequogue Plumbing and Hvac Co can discuss all your options and find the one that is right for you and your home and/or business. We provide plumbing, heating, cooling and drain repair and installation services. Our purpose is to improve the quality of life for our employees and the community as a whole. Our vision is to set the standard in great people and excellent service. Our mission is to provide a stable work environment while being respected among our peers.