Heating Services
Sonora & the Motherlode
Furnaces, heat pumps, ductless, and radiant. One local shop.
Heating installation, repair, and maintenance for homes from downtown Sonora to the snow line. Propane furnaces, heat pumps, ductless systems, and radiant floors, sized for our elevation and our winters.
Heating Built for Foothill Winters
Heating Systems We Install & Service
The heating types we work on most across Tuolumne and Calaveras County. Tap any card for details.
Propane Furnaces
Central forced-air heat, the region's workhorse. Propane-fired here, in 80% to 96% AFUE options. We handle repair and replacement.
Learn moreHeat Pumps
Heat and cool with one electric system. A big operating-cost win over propane and electric resistance, with cold-climate models for higher elevations.
Learn moreDual-Fuel Systems
A heat pump for most of the year with a propane furnace as backup for the coldest days. Often the right answer for snow-line homes.
Learn moreDuctless Mini-Split Heating
Zone heating for additions, cabins, garages, and homes without ducts. Most mini-splits are heat pumps, so they heat efficiently too.
Learn moreRadiant Floor Heating
Warm floors from a boiler system. J. Hart has designed and installed radiant heating here since the early 2000s.
Learn moreHeating Repair, Installation & Maintenance
Whatever system you have, the service you need.
Heating Repair
No heat, will not ignite, or blowing cold? Same-day service with a $185 flat-fee diagnostic (within 30 minutes of Sonora).
Learn moreHeating Installation & Replacement
New furnaces and heat pumps, sized by load calculation, with a written estimate first.
Learn moreHeating Maintenance
Fall furnace tune-ups from $200 per system. Keep the heat on before winter tests it.
Learn moreNo Heat? Same-Day Service
When your heat goes out, we respond quickly. Call us if you're dealing with:
Choosing Heat for a Motherlode Home
Fuel, elevation, and the honest local math on what keeps a foothill home warm.
Propane vs. Electric
Propane vs. Electric Heat
Propane
The default heating fuel across our area, and it costs meaningfully more per unit of heat than running a heat pump. That is exactly why propane households gain the most from a heat-pump switch.
Electric resistance
Wall heaters and older cabin baseboards are the most expensive way to heat, and the easiest bill to cut with a heat pump.
The takeaway
The less your current heat costs to run, the smaller the savings from switching. If you are on propane or electric resistance, a heat pump usually pays off. We run the numbers for your fuel and your home before you spend anything.
Not Sure What Should Heat Your Home?
Tell us your fuel, your square footage, and your winter, and we'll give you the honest comparison in writing. No sales pitch.
Why Choose J. Hart for Heating
Every heating type under one roof
Furnaces, heat pumps, ductless, and radiant. We install all four and service what we sell.
Bryant Factory Authorized Dealer
Bryant's top local-dealer designation, with factory-trained installation and enhanced equipment warranties.
Four generations local
Family-owned since 1984. Same name on the truck, same accountability.
Serving Sonora, Tuolumne County & Calaveras County
We're based in Sonora and serve homes and businesses across Tuolumne and Calaveras County.
We know the area's homes, building types, water conditions, and climate challenges — and what works at our elevation.
Not sure if we serve your area? Give us a call: (209) 533-1978
"This was the easiest, fastest, friendliest, and most professional contract job I've ever done! They helped me limp along on my old heater, then installed a new one. They sealed the area around it, took care of details, and made the necessary changes immediately."
Mona Gaskill
Heater Installation · 2025
Frequently Asked Questions
Propane furnaces are the most common by far. Heat pumps are growing fast because of propane costs and rebates, and radiant floor heating shows up in a lot of custom and higher-end homes.
Yes. Most homes in Sonora and Tuolumne County run on propane or electricity. We install, repair, and maintain propane furnaces.
For Sonora-area winters, yes: modern heat pumps handle our climate well. For higher-elevation properties that regularly drop below freezing, we spec a cold-climate model or a dual-fuel setup with a furnace as backup for the coldest days. See our Bryant heat pump page for the full picture.
No. We service central heating systems: furnaces, heat pumps, ductless, and radiant. For wood and pellet stoves you want a hearth specialist.
Once a year, in the fall, before the heating season. A yearly tune-up catches the worn parts that cause most no-heat calls. See our HVAC maintenance page for what a visit covers.
Yes. J. Hart has designed and installed radiant floor heating in the Sonora area since the early 2000s, and we service and repair existing radiant systems too. See our radiant heating page for details.
Our service area covers Sonora, Twain Harte, Columbia, Jamestown, Tuolumne, Mi-Wuk Village, Pinecrest, Groveland, Chinese Camp, Don Pedro, Sierra Village, Angels Camp, and surrounding communities across Tuolumne County and Calaveras County.
Ready to Schedule?
We'll Call You Back Fast.
Fill out the form and we'll reach out to confirm your appointment. No holding, no runaround — just a real person who knows your trade area.
- Same-day appointments available Mon–Fri
- Upfront pricing — no surprises after the fact
- CA Lic #459194 · NV Lic #77957
- Hours: 7:30 AM – 4:00 PM, Mon–Fri