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Heating Repair Across Concord, CA

The short answer

We repair forced-air furnaces, heat pumps, wall heaters, floor furnaces and ductless systems in Concord. Tell us what kind of heat you have and what it is doing, and we will diagnose the cause and explain repair options before starting work.

Not every Concord home heats the same way. A ranch house from decades ago might still have a floor furnace in the hallway or wall heaters in the bedrooms. A remodeled home may run a ducted heat pump. Plenty of others rely on a gas forced-air furnace in the garage. When the heat stops, the right repair depends on which of these you have, so this page is organized by system type. EliteFlow HVAC Repair Service repairs all of them across 94518, 94519, 94520 and 94521, about 13 miles north of Danville, and in nearby Clayton, Pleasant Hill and Walnut Creek.

Heat pumps that stopped heating

Heat pumps are becoming more common in Concord, and their winter problems look different from a furnace. A frosted outdoor coil that never clears suggests a defrost control, sensor or reversing valve issue. Air that feels lukewarm may be normal for a heat pump, or it may mean low refrigerant. Backup electric strips that never turn on leave the house cold on the frostiest mornings.

We check the reversing valve, defrost board and sensors, refrigerant pressures in heating mode, and whether the thermostat is configured to stage auxiliary heat correctly. A surprising number of complaints trace back to thermostat settings left over from the previous system.

Wall heaters and floor furnaces in older homes

Older Concord neighborhoods still have gravity wall furnaces and floor furnaces that sit under a grate in the hallway. They are simple, but they need care. Pilot lights go out, thermocouples wear, and dust collects on the burners. Floor furnaces in particular collect lint, pet hair and small objects that fall through the grate.

We clean and test these units, check the thermocouple and gas valve, and confirm proper venting and clearances. Because these heaters run without a blower, a cracked heat exchanger or poor draft can let combustion gases into the room, so we look closely and are honest when a unit should be retired rather than repaired. If replacement is on the table, a ductless heat pump is often a practical option for these homes, since many never had ducts to begin with.

Forced-air furnaces

For a ducted gas furnace, we follow the start-up sequence step by step, from the inducer and pressure switch through ignition, flame sensing and blower operation, and read any fault codes on the control board. The most frequent fixes are a dirty flame sensor, a failed igniter, a stuck pressure switch or a blower motor that has given out.

Clues worth noting before we arrive

A few details help us bring the right parts and spend less time guessing. Jot these down if you can.

  • What type of heater you have and where it is located: garage, attic, closet, hallway floor or wall.
  • Whether the system does nothing at all, tries and stops, or runs but blows cool air.
  • Any blinking lights or codes on the furnace control board.
  • Unusual sounds such as clicking, banging at ignition, squealing or rattling.
  • Whether some rooms are warm and others cold, which points toward ducts rather than the heater itself.
  • When the last filter change or service visit happened.

When to call right away

Some heating problems should not wait. If you smell gas, leave and call the gas company from outside. If a carbon monoxide alarm goes off, get everyone out of the house. If you see scorch marks near a wall heater or smell burning wiring, turn the system off at the breaker.

For everything else, it is usually safe to use a space heater carefully for a night while you arrange service. Keep it away from bedding and curtains and plug it directly into a wall outlet.

Thinking about what comes next

If your heater is old and the repair is significant, we will show you both paths. The Bay Area Air District rules do not require replacing working equipment, and they only apply when a furnace fails or is replaced. For gas furnaces manufactured from 2029, Rule 9-4 sets a zero-NOx standard, which in practice points toward heat pumps for replacements after that date. That is useful context, not pressure. Many older heaters are worth repairing, and we will say so when that is the case.

More services in Concord

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What to expect

How a visit goes

  1. Clear findings

    We show you the failed part or the reading that points to it, and explain what it means for the rest of the system.

  2. Choices, not pressure

    Repair, replace or wait and watch: you get the trade-offs of each and make the call yourself.

  3. Care for your home

    Shoe covers, drop cloths and a clean work area when we leave, whether the job was in the attic, garage or hall closet.

FAQ

Common questions

Do you work on floor furnaces and wall heaters?

Yes. We clean, test and repair gravity wall furnaces and floor furnaces common in older Concord homes, and we will tell you if a unit has reached the point where replacement is safer.

My heat pump blows lukewarm air. Is it broken?

Not necessarily. Heat pump air feels cooler to the hand than furnace air. If rooms are not reaching the set temperature, though, it needs a check.

Why are some rooms warm and others cold?

That usually points to duct problems such as disconnected runs, poor balance or a weak return rather than the heater itself.

Is it safe to relight my wall heater pilot myself?

If the instructions are on the unit and you are comfortable, yes. If it will not stay lit, the thermocouple or gas valve likely needs service.

Which areas around Concord do you cover?

All of 94518, 94519, 94520 and 94521, plus Pleasant Hill, Clayton, Walnut Creek, Lafayette and Moraga.

Tell us what your system is doing

Describe the noise, the smell or the temperature problem when you reach out, and we will schedule a technician with the right parts for your equipment.

Request Service Call (669) 274-2804
Call (669) 274-2804 Request Service