AC Installation in Roseville, CA
A new air conditioner in Roseville will run from July through August every year. Tell us about the house, and a licensed contractor who covers Placer County will get in touch.
Tell us about the job
It takes about a minute.
Two months of heat is still enough to matter
Roseville only asks for cooling in July and August, but those afternoons average 84°F, and a new system has to be sized to handle that heat without running longer than it should. Any central air conditioner installed now has to meet a federal minimum of 14.3 SEER2, so that baseline is already covered.
The bigger question here is what the unit sits through the rest of the year. Placer County has logged 223 damaging wind events and 6 hail storms over the past decade, with hail up to 1.25 inches. A condenser sitting outside needs to hold up to that, not just to a hot afternoon in August.
- 2 months
- July through August, your air conditioner is on duty
- 84°F
- the average summer afternoon it cools against
- 6 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 Placer County home, from EIA household energy data, California fuel prices and NOAA climate normals. Your home will differ.
California requires HVAC contractors to hold a state license.
The Contractors State License Board tests contractors before it licenses them, and it keeps a record of who holds one. That license covers the contractor, not this particular job, so it is the same license backing everything else that contractor does.
In most cities and counties, installing an air conditioner needs a permit from the local building office, with an inspection once the work is done. That inspection checks the installation itself, separate from the license the contractor holds.
Sources: California Legislative Counsel · Contractors State License Board
- What size air conditioner does my house need?
- It depends on your square footage, your ductwork, your insulation, and how much sun your house takes on, not just the size of the room you're cooling. A contractor works this out with a load calculation, which looks at the whole house rather than a rule of thumb. Putting in a unit that's too big cools the air fast but doesn't run long enough to pull the humidity out, and one that's too small runs constantly and still can't keep up on the hottest afternoons. Given that summer highs here average 84°F, getting the size right matters even though the cooling season is short.
- Should I replace the whole system or just the outdoor unit?
- In most cases the outdoor unit and the indoor coil need to match, so swapping only the outdoor unit can leave you with a system that runs poorly or doesn't work at all. The refrigerant and the coil design have to be compatible, and an older indoor coil often isn't. A contractor can look at the age and condition of both parts and tell you whether the coil can stay or needs to go with it. If your system was installed before 2023, it's also worth asking how it compares to the current 14.3 SEER2 minimum for new equipment.
- Do HVAC contractors in Roseville need a state license to work on my home?
- Yes. California requires anyone doing HVAC work to hold a license from the Contractors State License Board. You can look up a contractor's license number directly with the board to confirm it's active before you hire anyone. This applies to installation work as much as repairs.