Furnace Repair in Silverthorne, CO
If your furnace quits, tell us what it's doing and a licensed contractor who covers Summit County will get in touch.
Tell us about the job
It takes about a minute.
Your furnace never really gets to rest here
In Silverthorne your furnace runs all year, not just through the winter months. On nights that average 8°F from December through February, it is cycling on and off for hours at a stretch to hold the house at temperature. That is a lot of starts, and every start puts load on the igniter and the burner.
Most homes here heat with gas, and a gas furnace depends on steady power to run its blower and controls. The last ten years brought 46 winter storms and 42 damaging wind events to this area, and statewide, 13% of Colorado households lost power for a day or more in 2024. When the power drops in a cold snap, the furnace stops with it, and the house starts losing heat right away.
- 8°F
- the average winter night it heats against
- 58%
- of homes here heat with gas, so most furnaces here burn gas
- 46 winter storms
- in ten years, the nights a failure hurts most
NOAA nClimDiv, 1991–2020 normals
A new furnace would cut about $170 a year off heating for a typical Summit County home.
Estimates for a typical Summit County home, compared with an older unit built to the previous federal minimum, from EIA household energy data, Colorado fuel prices and NOAA climate normals. Your home will differ.
Repair makes sense when one part has failed and the heat exchanger is sound.
Replacement makes sense when the heat exchanger is cracked or the furnace keeps needing parts.
- Why won't my furnace turn on?
- Start with the thermostat. Make sure it's set to heat and the temperature is set above room temperature, since a setting bumped down a few degrees can leave the furnace idle all night when it's 8 below outside. Check the power switch on the furnace itself, it looks like a light switch, and check the breaker too. If those are fine, the igniter or flame sensor may have failed, and a contractor can test both in a single visit.
- Why is my furnace blowing cold air?
- Most often the blower is running before the burners have caught up, which feels cold for a minute but isn't a problem. If cold air keeps coming, check your filter first. A clogged filter chokes the airflow across the heat exchanger and can trip a safety switch that shuts the burners off while the fan keeps blowing. If the filter's clean and you're still getting cold air, the igniter or gas valve likely needs a look, worth having checked soon since your furnace has to run most of the year here.
- Why won't my furnace pilot light stay lit?
- This usually comes down to the thermocouple, the small sensor that tells the gas valve the pilot is actually burning. When it wears out or sits out of position, it reads no flame even when one's there, and the valve shuts the gas off to protect you. A draft blowing out the pilot can look the same, so check for a draft near the burner compartment before assuming it's the thermocouple. Either way, a pilot that won't stay lit needs a contractor's look rather than repeated relighting, especially with winter nights here running around 8 degrees.