HVAC Installation in Hartford, CT
A new system here will heat from October through May and cool from June through August every year. Tell us about the house, and a licensed contractor who covers Hartford will get in touch.
Tell us about the job
It takes about a minute.
What a new system needs to handle here
Hartford winters average 21°F on winter nights from December through February. A new furnace has to carry the house through eight months of heating, October through May. Summer asks less of it, with afternoons averaging 81°F through the three months of June through August, but it still has to keep the house cool on those days.
Between the two seasons, a system here runs 11 months out of the year. Almost half of Hartford homes heat with gas, so whatever goes in has to be matched to that fuel and sized for both the cold nights and the warm afternoons, not just the season that comes first.
- 8 months
- October through May, your system heats
- 3 months
- June through August, it cools
- 21°F
- the average winter night it heats against
- 81°F
- the average summer afternoon it cools against
NOAA 1991–2020 monthly normals
Connecticut requires HVAC contractors to hold a state license.
The license is issued to the contractor by the Department of Consumer Protection, not to any single job. That means the state has tested and recorded the person or business before they ever get to your house, but it does not mean an inspector checks this particular installation just because the contractor is licensed.
That check comes from your local building office. Putting in a new furnace, air conditioner or heat pump needs a permit in most cities and towns here, and an inspection once the work is done. The permit is what gets someone to look at the gas connections, the wiring and the refrigerant lines after the contractor is finished, separate from whatever license they carry.
Sources: Connecticut General Assembly · Connecticut Department of Consumer Protection
- When should I replace my HVAC system?
- Replace it when repairs start happening every year, or when a contractor tells you the next breakdown is likely to cost more than a new system would. An aging furnace matters more here since homes need heat October through May, eight months of the year. Rising energy bills with no other explanation are another sign the equipment is losing efficiency. If a contractor has already been out more than once this year, ask them straight whether the next repair is worth it.
- Should I replace my furnace and air conditioner at the same time?
- If they are close in age, replacing both together often makes sense, but it depends on the condition of each one. A furnace and air conditioner installed at the same time tend to wear out around the same time, so if one is failing the other may not be far behind. They also share ductwork and controls, so matching them can mean better performance than pairing an old unit with a new one. A contractor looking at both systems can tell you whether one still has real years left in it.
- What happens during an HVAC installation?
- A contractor removes the old equipment, sets the new furnace, air conditioner, or both in place, and connects them to the ductwork, gas line, refrigerant lines, and electrical as needed. They will also check that the ducts are sized right for the new equipment, since a bigger or more efficient unit does not perform correctly if the duct system was built for something else. Once everything is connected, the contractor tests the system, checks refrigerant charge and airflow, and walks through the thermostat and any controls with you. A contractor can tell you how long the job will take for your house and equipment.