Furnace Tune-Up & HVAC Winter Inspection — Pre-Winter Heating Check
Pre-winter heating check with our full heating maintenance checklist and written readings
A furnace tune-up is a pre-winter heating check that cleans and tests the parts most likely to fail on the first cold night: flame sensor, igniter, burners, inducer, pressure switch, blower, limit switches and gas pressure, plus a carbon monoxide test and heat exchanger inspection. DC Air and Heating's HVAC winter inspection is $129 per system, or included twice a year in the Comfort Club membership. Book in September through early November, before the first Antelope Valley cold snap, and include furnace filter replacement service so the system starts the season with clean airflow. Call (661) 310-3340.
Key Facts
- Flame sensor cleaned and microamp signal recorded
- Igniter, burners, inducer and pressure switch tested
- Gas pressure and temperature rise set to manufacturer specs
- Carbon monoxide test and heat exchanger inspection
- Furnace filter replacement service — standard filter included
- Heat pumps: defrost cycle, reversing valve and aux heat tested
| Heating maintenance checklist item | Why it matters |
|---|---|
| Clean and test flame sensor | #1 cause of winter no-heat calls |
| Inspect igniter | Cracked igniters fail on cold starts |
| Combustion and CO test | Safety — cracked heat exchangers |
| Check gas pressure and temperature rise | Efficiency and heat exchanger life |
| Test limit and rollout switches | Safety shut-offs must work |
| Replace filter / check dust filters | Desert dust chokes airflow fast |
| Inspect blower and capacitor | Prevents mid-winter motor failure |
| Test thermostat and staging | Correct heat and aux-heat calls |
Estimated range only — get an exact written price with a free in-home consultation or use our Instant Quote tool. Get an Instant Quote or call (661) 310-3340.
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Related heating help
- Comfort Club maintenance plan
- Full HVAC maintenance checklist
- Failing flame sensor repair
- Heat pump winter issues
Areas we serve
Dispatched from our Quartz Hill shop to the Antelope Valley, Santa Clarita Valley, north San Fernando Valley and Kern high desert.
- Lancaster
- Palmdale
- Quartz Hill
- Santa Clarita
- Valencia
- Canyon Country
- Newhall
- Saugus
- Stevenson Ranch
- Castaic
- Acton
- Agua Dulce
- Littlerock
- Pearblossom
- Lake Los Angeles
- Sun Village
- Leona Valley
- Lake Hughes
- Green Valley
- Antelope Acres
- Rosamond
- Willow Springs
- Mojave
- California City
- Edwards AFB
- Tehachapi
- Sylmar
- San Fernando
- Granada Hills
- Porter Ranch
- Northridge
- Chatsworth
- Van Nuys
- Phelan
- Pinon Hills
- Wrightwood
Frequently Asked Questions
How much does a furnace tune-up cost?
$129 per system. Comfort Club members get both a spring cooling and fall heating visit included, plus priority scheduling and repair discounts.
When should I schedule a pre-winter heating check?
September through early November. Once the first cold week arrives, everyone in the Antelope Valley turns the heat on at once and appointment times fill up.
Do you offer furnace filter replacement service?
Yes. A standard filter is replaced during every tune-up, and we can recommend higher-MERV pleated or media dust filters for heating systems in dusty, windy desert areas — sized so they do not restrict airflow.
What dust filters work best for a heating system in the high desert?
For most homes, a MERV 8–11 pleated filter changed every 1–3 months during windy seasons balances dust capture and airflow. Thicker 4–5 inch media cabinets last longer and are a good upgrade where the return allows.
Is a winter inspection really necessary?
Most manufacturers require documented annual maintenance to keep the parts warranty valid, and the flame sensor and filter issues we fix on a tune-up are the same ones that cause most December no-heat calls.
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