HVAC Installation in Moses Lake, WA
A new system here will heat from October through May and cool from July through August every year. Tell us about the house, and a licensed contractor who covers Grant County will get in touch.
Tell us about the job
It takes about a minute.
Ten months of the year, your system is working
Moses Lake asks a lot from a heating and cooling system. Winter nights average 25°F from December through February, and your furnace has to keep up from October through May, eight months a year. Summer afternoons average 85°F, so the air conditioner gets its own stretch of steady work in July and August. Ten months of the year, one system or the other is running.
Most homes here heat with electricity, so a power outage takes the furnace down with it. Washington households saw real outages in 2024, with 23% losing power for at least 24 hours. Grant County has logged 93 winter storms and 30 damaging wind events over the past ten years. A new system needs to be sized and installed to handle both the cold nights and the hot afternoons, and to come back on by itself when the power does.
- 8 months
- October through May, your system heats
- 2 months
- July 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
Washington requires contractors to register with the state.
Registration means the contractor's business is on file with the Department of Labor and Industries. Nobody tests them on the trade to get it. It tells you the business is real and on the books, not that the state checked their work.
For a heating and cooling installation in Grant County, the protection comes from the permit and inspection, not from registration. In most cities and counties, replacing a furnace, air conditioner or heat pump needs a permit from the local building office, and an inspector checks the finished work once it is done. That inspection is what catches a bad connection or an unsafe install here.
Source: Washington State Legislature
- When should I replace my HVAC system?
- Replace it when repairs start piling up or the system can't keep the house comfortable anymore. A furnace that struggles through those 25°F winter nights, or an air conditioner that can't keep up on an 85°F afternoon, is telling you something. Rising energy bills with no other explanation are another sign the equipment is losing efficiency. If a contractor has already recommended a repair more than once in the past year or two, replacement is usually the more sensible move at that point.
- Should I replace my furnace and air conditioner at the same time?
- If both are old, yes, it usually makes sense to do them together. A furnace and air conditioner installed at the same time are matched to work as one system, and pairing an old unit with a new one can mean the two never run as efficiently as they should. Homes here need heat from October through May and cooling only in July and August, so the furnace does most of the work and tends to wear out first. If your air conditioner still has years left in it, a contractor can tell you whether it's worth replacing now or waiting.
- What happens during an HVAC installation?
- A contractor removes the old equipment, sets the new furnace, air conditioner or heat pump in place, and connects it to the ductwork, gas line or electrical circuit and the refrigerant lines. They check that the ducts are sized right for the new equipment and test everything once it's running, checking airflow, refrigerant charge, and that the thermostat is talking to the system correctly. Replacing a furnace, air conditioner or heat pump needs a permit from the local building office in most cities and counties, along with an inspection once the work is finished. That inspection confirms the installation was done to code, which matters for both safety and any warranty on the equipment.