HVAC Installation in Martinsburg, WV
A new system here will heat from October through April and cool from June through August every year. Tell us about the house, and a licensed contractor who covers Berkeley County will get in touch.
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Ten months of work a year, in Berkeley County
Your new system will run from October through April to keep the house warm, then June through August to keep it cool. Only two months off in between. Winter nights average 25°F, so a furnace or heat pump works hard most of the winter, and summer afternoons near 85°F ask the same of the air conditioner on the other end of the year.
Most homes here heat with electricity, 76.5% of them, which puts real weight on the system during those cold nights. And the power itself is not a given. 35% of West Virginia households lost power for at least a full day in 2024, and the county has logged 20 winter storms and 90 damaging wind events over the past ten years. Whatever gets installed should be sized for a place that asks for heat or cooling ten months of the year, and built to handle the nights when the power goes out too.
- 7 months
- October through April, your system heats
- 3 months
- June through August, it cools
- 25°F
- the average winter night it heats against
- 85°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
West Virginia requires HVAC contractors to hold a state license.
West Virginia licenses HVAC contractors through the Commissioner of Labor, and the state tests contractors before granting it. The license covers the contractor, not each job, so it tells you the person or company has proven they know the trade, separate from whatever else is true of this particular installation.
For a heating and cooling installation in Berkeley County, that license is what stands behind the work itself. In most cities and counties, a job like this also needs a permit from the local building office, with an inspection once the work is done. That inspection is what catches a bad connection or a wiring mistake, and it happens separately from the license.
Source: West Virginia Legislature
- When should I replace my HVAC system?
- Replace it when repairs get frequent, when parts are hard to find for the unit, or when it can no longer keep the house at temperature. An older furnace or air conditioner is worth having looked at even if it still runs, since a breakdown in the 25°F lows of December through February is a different problem than one in warmer months. If a contractor tells you the repair cost is close to a new system, that is usually the point to stop patching it.
- Should I replace my furnace and air conditioner at the same time?
- If both are old, replacing them together often makes sense, but it depends on the condition of each one. A furnace and air conditioner installed years apart can still work fine together as long as they're sized to match. Homes here run the furnace October through April and the air conditioner June through August, so the furnace does more of the work over the year and may wear differently than the air conditioner. A contractor can look at both and tell you whether one is close to failing or whether they should be paired for efficiency.
- What happens during an HVAC installation?
- A contractor removes the old equipment, sets the new furnace, air conditioner or heat pump, and connects it to the ductwork, gas or electric lines, and condensate drain. They check that the system is sized right for the house, then test it under a full heating and cooling cycle before calling the job done. In most cities and counties, this work needs a permit from the local building office and an inspection once it's finished. That inspection confirms the installation meets code, which matters for both safety and any warranty on the equipment.