• Fairfield County
  • Stratford
  • 203 HVAC provides the most reliable heating and cooling services in CT.

    From furnace repair on a cold winter's night to installing a new ac system in the dog days of summer, we're here to help. Our team of HVAC experts have the skills and experience to solve even the most complex problems. Call today for a free HVAC services quote!

    203 HVAC provides affordable heating and air conditioning repair, replacement, and maintenance services for homeowners in Bridgeport, New Haven, Stamford, Waterbury, Danbury, and all of Fairfield and New Haven Counties.

    Our team has the experience to handle your home's heating and cooling repair, replacement, installation, and maintenance needs. If your outdated furnace or air conditioner is in need of replacement, we work with the top brands to help provide you with the most efficient and reliable hvac systems available.

    Services Include Air conditioning repair & replacement, air conditioning maintenance, dehumidification, furnace repair and replacement, furnace cleaning, energy efficient upgrades, emergency repair, and much more.

    Highlights, Specialties & Features

    • 24 Hour Service
    • Emergency Repair
    • Heating & Cooling Repair, Replacement, and Installation
    • Energy Efficient Upgrades
    • Oil to Gas Conversion
    • Tankless, Gas, Oil, Electric Water Heater Services

    Serviced Areas

    • Stratford, Bridgeport, Fairfield, Trumbull, Monroe, Shelton, New Haven, Greenwich, Danbury, Waterbury

    Contact Details

      City Stratford, CT
      Zip Code 06614
      Phone Number (203) 601-7752

    Products & Services

    HVAC Maintenance

    With scheduled maintenance, your heating and air conditioning systems will require fewer repairs over time, and will help you save money long term. When professional maintenance is done, your HVAC contractor may uncover smaller issues that could have turned into more serious problems if not fixed.

    Indoor Air Quality Services

    Air Filtration and Purification
    Humidification and Dehumidification
    Duct Cleaning
    Whole House Air Cleaners


    In CT, heating your home in the winter is essential, and when you can’t it needs to be repaired NOW. Our heating system repair contractors have the experience to fix any home heating problem you may be facing.

    Whether you need repairs for your gas or oil furnace, or are looking for a new heating system replacement and installation you can trust that the job will be done right the first time.

    Air Conditioning

    When the warm weather comes, we all rely on our aac systems to help keep our homes cool and comfortable all summer long. When issues arise and you’re dealing with issues in cooling your home, you need it fixed right away.

    No matter if your home has a central, ductless, other type of air conditioning system, you need service you can rely on to keep you cool all summer long, and our experts have the experience to handle your home’s air conditiong needs.

    Customer Testimonials

    The service was great and fast. Rob, the service tech came to my home and took the time to answer all my questions. I highly recommend 203 HVAC

    203 HVAC was able to quickly help repair my home’s furnace after it wouldn’t turn on. They provided quick service and were very great to work with!

    I was referred to 203 HVAC from a friend and was glad I called. They installed a new central air system in my home I am remodeling quickly and for a great price.