HVAC Installation in Columbia, MD
A new system here will heat from October through April and cool from June through September every year. Tell us about the house, and a licensed contractor who covers Howard County will get in touch.
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Eleven months of work a year for your system
In Howard County, a new furnace or heat pump runs from October through April, and winter nights average 26°F. The air conditioner takes over for June through September, working against afternoons that average 85°F. That leaves only one month when the system gets a real break.
Almost half of homes here heat with electricity, which makes a heat pump's cold-weather performance worth asking about before you buy. And with 22 winter storms and 177 damaging wind events recorded here over the past ten years, and 11% of Maryland households losing power for at least a day in 2024, it's worth knowing how your new system starts back up once the power comes back on.
- 7 months
- October through April, your system heats
- 4 months
- June through September, it cools
- 26°F
- the average winter night it heats against
- 85°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Maryland requires HVAC contractors to hold a state license.
The Maryland Board of Heating, Ventilation, Air Conditioning, and Refrigeration Contractors tested the contractor before issuing that license, and it keeps a record of who holds one. The license belongs to the contractor, not the job, so it covers the company doing the work rather than this particular furnace or condenser.
Most cities and counties also require a permit from the local building office before a new furnace, air conditioner or heat pump goes in, with an inspection once the work is done. The state license tells you the contractor was tested. The permit and inspection are what confirms this specific installation was done to code.
Sources: Maryland General Assembly · Maryland Department of Labor
- When should I replace my HVAC system?
- Replace it when repairs start coming often, or when the equipment is old enough that a major part failing would cost more to fix than the unit is worth. Furnaces and air conditioners both tend to run into trouble in their second decade. If your furnace is out during a stretch of 26°F nights, or your air conditioner quits in the middle of an 85°F afternoon, that is a sign to think about replacement instead of another repair. A rising utility bill with no other explanation is also worth paying attention to, since it can mean the system is working harder to do the same job.
- Should I replace my furnace and air conditioner at the same time?
- If both are old, yes, it usually makes sense to do them together. A furnace and air conditioner installed at the same time are matched to work as one system, and homes here need one or the other running 11 months of the year, so replacing them together means less time deciding which one to fix under pressure. If one unit is much newer than the other, replacing only the older one is reasonable. A contractor can look at the age and condition of both and tell you whether pairing them makes sense for your house.
- What happens during an HVAC installation?
- A contractor removes the old furnace and air conditioner, sets the new equipment in place, and connects it to your ductwork, gas or electric line, and condensate drain. The new system gets wired to the thermostat and tested to confirm it heats and cools properly, and the refrigerant lines are checked for the correct charge. Maryland requires HVAC contractors to hold a state license, and most cities and counties also require a permit for this work along with an inspection once it is finished. That inspection confirms the installation was done to code before the job is considered complete.