HVAC Installation in Tacoma, WA
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Ten months of heat a year, and barely a summer
Winter nights in Pierce County average 31°F from December through February, and homes here need heat running from September through June. That's ten months of the year the heating system is doing the work, not just the coldest stretch. A new system has to be sized for that long season.
Summer afternoons average only 70°F, and homes here don't need cooling at all. If you're adding air conditioning, it's for comfort on the occasional warm day, not to carry a long cooling season. Most homes here heat with electricity, so the furnace or heat pump depends on the power staying on. Almost a quarter of Washington households went at least 24 hours without power in 2024, worth keeping in mind when you're choosing what heats the house.
- 10 months
- September through June, your system heats
- 31°F
- the average winter night it heats against
- 70°F
- the average summer afternoon it cools against
Washington requires contractors to register with the state.
That registration puts the contractor's business on file with the state. There is no trade exam behind it, so the number tells you the business is registered, not that anyone checked their work.
For an install like this, the protection comes from the permit. In most cities and counties in Pierce County, putting in a new furnace, air conditioner or heat pump needs a permit from the local building office, and an inspector checks the work once it's done. That inspection is what catches a bad gas connection or a system that was never hooked up right.
Source: Washington State Legislature
- When should I replace my HVAC system?
- Replace it when repairs stop making sense or the system can't keep up anymore. If your furnace is breaking down every winter, or a repair bill starts to approach what a new unit would cost, that's your sign. An older furnace working hard year after year has less left in it than a newer one, even if it's still running today. Homes here need heat from September through June, so a furnace that struggles in a Tacoma winter is a bigger problem than one that only sees light use. If yours is short cycling, making noises it didn't used to make, or heating unevenly room to room, get it looked at before you're stuck deciding in the middle of a cold snap.
- Should I replace my furnace and air conditioner at the same time?
- If both are old, replacing them together usually makes more sense than doing one now and one later. They're built to work as a matched pair, often sharing the same blower and coil, so replacing only one can leave the new part working around the limits of the old one. That said, homes in Tacoma don't need cooling the way they need heat. Summer afternoons here average around 70°F, and homes need cooling zero months a year, so if your air conditioner is still working fine, there's no reason tied to your climate to rush its replacement just because the furnace needs one. A contractor can look at both and tell you honestly whether pairing them makes sense for your setup.
- What happens during an HVAC installation?
- A contractor removes the old equipment, sets the new furnace or heat pump in place, and connects it to your ductwork, gas line or electrical circuit, and thermostat. They'll also check that the ducts and vents are sized right for the new equipment, since a unit that doesn't match the ductwork won't heat or cool the way it should. In most cities and counties around here, this work needs a permit from the local building office, and an inspector checks it once it's done. That inspection confirms the gas connections, wiring and venting are safe before the job is called finished. A contractor pulling the permit is a good sign they're doing the work by the book.