Mini Split Installation in Portsmouth, VA
A new system here will heat from November through April and cool 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.
Eleven months of work for your mini-split in Portsmouth
Your mini-split runs almost year round here. Heat from November through April, cooling from May through September, only one month off in between. That is a lot of hours on the compressor.
Winter nights average 35°F and summer afternoons hit 86°F, so the system has to swing between real heating load and real cooling load in the same year. Any new unit installed has to be sized for both, not just one or the other. If it was made in 2023 or later, it also has to meet the federal minimum for a split-system heat pump, 14.3 SEER2 for cooling and 7.5 HSPF2 for heating. Portsmouth has also seen its share of storms, 22 damaging wind events and 6 winter storms over the past ten years, and power in Virginia has gone out for a day or more in 22% of households in a single year. Worth keeping in mind since a mini-split does not run without power.
- 6 months
- November through April, your system heats
- 5 months
- May through September, it cools
- 35°F
- the average winter night it heats against
- 86°F
- the average summer afternoon it cools against
NOAA nClimDiv, 1991–2020 normals
Virginia requires HVAC contractors to hold a state license.
The Board for Contractors issues that license after testing the contractor, and it stays with the contractor rather than any single job. Virginia does carve out an exception for small jobs. Work under $1,000 does not need a licensed contractor at all. A mini-split installation runs well past that line, so the contractor doing this job should hold the state license.
The license covers the contractor, but the installation itself will also need a permit from the local building office in most cities and counties, with an inspection once the work is done. That inspection is what checks the job was done right, separate from the license itself.
Sources: Virginia General Assembly · Virginia Department of Professional and Occupational Regulation
- Is a mini split worth it?
- For most homes it comes down to what you're heating or cooling and whether ducts already reach there. A mini split runs on electricity and works both directions, so it heats through the winter and cools through the summer without a separate furnace and AC. Homes here need one or the other for 11 months of the year, so a system that does both from one outdoor unit carries its weight. It's a good fit for an addition, a garage, or a home with no ductwork at all. A contractor can look at the space and tell you what size unit it needs.
- How many rooms can a mini split cover?
- One outdoor unit can run several indoor heads, so it can cover more than one room at a time. Each indoor head handles one room or one open area, and you set the temperature on each one separately. The number that makes sense for a given house depends on the layout, how the rooms connect, and where the outdoor unit can go. A contractor sizes the system room by room rather than guessing at a number in advance.
- Can a mini split heat a whole house?
- It can, if enough indoor heads are placed to reach every room. A multi-zone system ties several indoor units to one outdoor unit, and each zone gets sized for the room it heats. Winter nights here average 35°F, so the outdoor unit has to be sized for that cold, not just for a mild day. A contractor works out how many zones the house needs and where each head has to sit to actually reach every room.