AC Installation in Portsmouth, VA
A new air conditioner in Portsmouth will run from May through September every year. Tell us about the house, and a licensed contractor who covers Portsmouth will get in touch.
Tell us about the job
It takes about a minute.
Five months of Portsmouth heat
Portsmouth homes need cooling from May through September. Summer afternoons average 86°F, and a new system has to hold that line day after day for five months straight, not just on the hottest afternoon.
Any new central air conditioner installed today has to meet a federal minimum of 14.3 SEER2. That's the baseline. The unit still has to be sized to your house and installed so it can run those five months without strain.
- 5 months
- May through September, your air conditioner is on duty
- 86°F
- the average summer afternoon it cools against
- 1 hail events
- in ten years, and hail bends the fins on outdoor coils
- 13.4 SEER2
- the federal minimum any new unit must meet
NOAA nClimDiv, 1991–2020 normals
Going above the federal minimum saves little here, about $20 a year.
Estimates for a typical Portsmouth home, from EIA household energy data, Virginia fuel prices and NOAA climate normals. Your home will differ.
Virginia requires HVAC contractors to hold a state license.
The license is tied to the contractor, not to your particular job. It means the state has tested the person or business and keeps a record of them. Virginia does carve out an exception for small jobs. Work under $1,000 does not need a licensed contractor. An air conditioner installation runs well past that, so the contractor doing this job should hold the state license.
Beyond the license itself, most cities and counties require a permit for an air conditioner installation, with an inspection once the work is done. That inspection is separate from the license. It is a local check that the equipment was put in correctly, not a credential the contractor carries with them to the next job.
Sources: Virginia General Assembly · Virginia Department of Professional and Occupational Regulation
- What size air conditioner does my house need?
- There is no single answer without a load calculation. A contractor figures this out room by room, looking at your square footage, insulation, window area and how much shade your house gets, then sizes the unit to match. A unit that is too big cools the air fast but shuts off before it pulls the humidity down, so the house feels damp. One that is too small runs constantly on the 86°F afternoons Portsmouth gets all summer and still can't keep up. Ask the contractor to walk you through the calculation rather than just quoting a tonnage.
- Should I replace the whole system or just the outdoor unit?
- If your indoor coil and outdoor unit are different ages or different efficiency levels, replacing just the outdoor unit usually is not the better move. The two are matched at the factory to work together, and pairing a new condenser with an old coil can mean the system never reaches the efficiency either piece was built for. It can also void the warranty on the new part. A contractor can check whether your existing coil will actually pair with a new condenser before you decide.
- Do HVAC contractors in Portsmouth need a state license to work on my home?
- Yes. Virginia requires HVAC contractors to hold a state license through the Board for Contractors, and installing a central air conditioner falls under that requirement. The license covers the contractor, not the individual job, so it is worth checking that whoever comes to your house is the one actually licensed. Most cities and counties also require a permit and inspection for this kind of job, so ask the contractor how they handle that before work starts.