Fast, Reliable Heating & Furnace Across Merced
Heating and furnace repair in Merced typically runs $150–$700, with most calls completed same-day or next-day by our Heating & Furnace team. If your furnace won’t start, cycles constantly, or you’re worried about carbon monoxide, call (855) 467-1888 for a free estimate. We’ve been driving out to Merced from our Sacramento base for years, and we know the specific ways this valley city’s climate punishes heating equipment.
Merced sits on the San Joaquin Valley floor where summer highs routinely hit 104–108°F while dense tule fog blankets the city for weeks at a stretch from November through February. That punishing dual-season load is more extreme than what coastal or foothill neighbors face. Layered on top, the UC Merced campus has driven a fast-growing new-construction corridor in the southern ZIP codes built to current Title 24 energy codes, splitting the local market sharply between high-efficiency new installs and aging-system replacements in the older core. We work across both worlds.
Why Stonegate Heating & Air California Is Merced’s Preferred Heating & Furnace Company
Sixteen years in business, nearly 500 reviews at 4.7 stars. That volume matters. It means we’ve handled the exact furnace problems Merced homeowners face, and our customers have documented the results.
Owner Jason Trent serves as Field Supervisor, not a back-office figurehead. When we dispatch to Merced, he’s the one making sure the diagnostic is right and the repair holds. Jason supervises every project. That accountability structure is why our review profile stays consistent across hundreds of jobs.
We carry factory training on nine major brands — Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. Whatever brand you have, we don’t dead-end you with “we don’t service that.” Parts availability for Merced customers is same-day or next-day from our Sacramento inventory.
Our response time to Merced is typically next-day for standard calls, with emergency HVAC available when heat exchanger cracks, gas leaks, or total failures put your household at risk. We’ve replaced systems on Yosemite Avenue in 95340, tuned up new tracts near UC Merced in 95348, and handled commercial units along Highway 99.
Our Heating & Furnace Services in Merced
Furnace Repair in Merced
Furnace repair in Merced runs $150–$700 depending on the failed component. The most common winter call we get from 95340 and 95341 is a furnace that won’t ignite after the first heavy fog week. Moisture corrodes ignitors, fouls flame sensors, and cracks older heat exchangers. We stock ignitors, gas valves, and control boards for Carrier, Trane, Lennox, and Goodman systems, so most Merced repairs finish in a single visit.
Furnace Replacement in Merced
A full furnace replacement in Merced typically costs $3,500–$7,500 including equipment, labor, and basic duct modifications. We do more replacements in Merced’s older core than almost anywhere else we serve. Post-WWII ranch homes from the 1950s through 1970s often have original ductwork sized for the furnace that was installed when Eisenhower was president. That ductwork can’t handle modern airflow requirements. We measure, we calculate, and we tell you honestly whether your ducts need sealing or replacement before we quote the furnace.
The UC Merced growth corridor is different. Homes in 95343 and 95348 were built to Title 24 standards with properly sized ducting and high-efficiency equipment from day one. When those need replacement, it’s usually a straight swap to a newer 96% AFUE unit, not a full system redesign.
Furnace Tune-Up in Merced
A furnace tune-up in Merced costs $80–$200 and should happen before the first tule fog settles in November. Our tune-up covers heat exchanger inspection with a borescope, gas pressure testing, burner cleaning, and condensate drain clearing. That last item matters more in Merced than most California cities. The sustained damp cold of valley fog weeks clogs drains with algae and rust particulate, leading to pressure switch failures and shutdowns. We clean it. We test it. We document it.
Heat Exchanger Repair & Replacement in Merced
Heat exchanger work is where Merced’s climate shows its teeth. The flat valley floor traps tule fog from November through February, sometimes continuously for weeks. That sustained damp cold corrodes outdoor unit cabinets and stresses heat exchangers in ways coastal California cities rarely see. Add salt air channeled through the Pacheco Pass, and uncoated metal in older homes deteriorates fast.
Last January, we replaced a corroded heat exchanger in a 1960s ranch home on Yosemite Avenue (95340). The tule fog had rusted the original Lennox unit’s cabinet, and a crack in the exchanger was leaking carbon monoxide. We installed a new Carrier gas furnace with a stainless steel secondary heat exchanger and sealed the ductwork to handle the damp cold. Carbon monoxide from a cracked exchanger is not a repair you defer. If you smell burning metal, hear rattling from the fire box, or your CO detector trips, shut the system down and call us.
What happens when you call
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A real person answersNo phone trees — you reach a local pro.
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You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Merced
We’re certified to work on nine leading HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Merced customers, that means no “we don’t service that brand” dead end. We stock common parts for Carrier, Trane, and Lennox systems in our Sacramento warehouse, with same-day or next-day delivery to Merced addresses. Goodman parts move fast too — that brand shows up frequently in the post-2005 UC Merced tract homes where builders prioritized value engineering. Whatever brand you have, we have the manuals, the training, and the parts pipeline to fix it without a two-week wait.
Common Heating & Furnace Problems We See in Merced Homes
- Tule fog corrosion on heat exchangers. Weeks of sustained damp cold in 95340 and 95341 ranch homes rust uncoated steel exchangers from the outside in. We inspect with a borescope and replace with stainless or aluminized units when the metal thins.
- Condensate drain clogs from fog-season moisture. High-efficiency furnaces produce condensate year-round, but Merced’s winter humidity keeps drains wet and growing algae. A blocked drain trips the pressure switch and kills the flame. We clear it and install overflow safeties.
- Salt-air rust on outdoor cabinets and burner assemblies. Bay Area salt air pushes through the Pacheco Pass and attacks uncoated furnace cabinets in exposed side-yard installations. We see this most on pre-1990 units in downtown Merced neighborhoods.
- Evaporative cooler conversions triggering furnace inspections. Thousands of older Merced homes were built with evaporative coolers suited to dry early-summer heat. When late-July and August monsoon moisture pushes valley relative humidity above 40%, those units pump warm humid air indoors. Homeowners call us for central AC conversion, and we find the existing furnace is undersized, rusted, or improperly ducted for refrigerated cooling. We handle the full replacement.
Pricing for Heating & Furnace in Merced, CA
Here’s what heating and furnace work costs in Merced’s market:
| Service | Price Range in Merced |
|---|---|
| Furnace Repair | $150–$700 |
| Furnace Replacement | $3,500–$7,500 |
| Furnace Tune-Up | $80–$200 |
What moves you within these ranges? Parts versus labor split, accessibility of the unit, and whether your ductwork needs modification. A failed ignitor on an accessible attic unit in a 95348 tract home is a quick repair. A cracked heat exchanger in a 95340 crawl space with rusted cabinets and improperly sized ducts is a full replacement. We diagnose before we quote. Estimates are free. Call (855) 467-1888.
We Also Serve Cities Near Merced
Our service radius covers Atwater to the north, Winton and Livingston to the west, and Chowchilla to the south. If you’re in the broader Merced County area and need heating or furnace work, the same technician team — supervised by Jason Trent — drives to you. Our Heating & Furnace coverage extends across the central valley corridor.
Serving Merced, CA — Our Local Coverage Area
We’re based in the Merced area and know this community well. Use the map below to see our service coverage — if you’re nearby, we can almost certainly help.
FAQs — Heating & Furnace in Merced
Merced’s combination of tule fog and salt air from the Pacheco Pass creates a corrosive environment that thinner inland valleys like Los Banos don’t match. The fog delivers sustained moisture for weeks, while the salt accelerates oxidation on uncoated steel. We see exchanger cracks in Merced’s 95340 ranch homes 20–30% earlier in equipment life than in drier foothill locations. If your furnace is 15+ years old and exposed to side-yard weather, schedule a borescope inspection before the next fog season. Call (855) 467-1888 for a free estimate.
If your home has only an evaporative cooler, you don’t have a furnace to replace — you have a heating gap. Most 95340 and 95341 ranch homes with original evaporative coolers relied on wall heaters or floor furnaces for warmth. When monsoon humidity in late summer renders the cooler ineffective, homeowners often convert to central refrigerated AC and a gas furnace in one project. We size the furnace for Merced’s heating load, not just the cooling replacement. Call (855) 467-1888 and we’ll calculate your actual heat loss.
Once yearly, ideally in October before tule fog arrives. The damp cold stresses every component — burners, ignitors, heat exchangers, condensate drains — and a pre-season tune-up catches corrosion before it causes failure. For homes in 95340 with 30+ year old systems, we recommend inspection twice yearly. A tune-up in Merced costs $80–$200. Call (855) 467-1888 to book before the fog sets in.
Yes. The UC Merced growth corridor in 95343 and 95348 was built to Title 24 standards with sealed ductwork, proper insulation, and 96% AFUE furnaces as baseline. Older 95340 and 95341 homes often have uninsulated ducts in vented attics and 80% AFUE units with standing pilot lights. The efficiency gap is real. We’ve measured 30–40% heating cost differences between comparable square footages in old and new Merced construction. If you’re in an older home, replacement pays back faster than you’d think.
Carrier and Trane for their stainless steel heat exchanger options that resist tule fog corrosion. Lennox for their variable-speed blowers that handle Merced’s extended heating and cooling seasons without the on/off wear of single-stage units. Goodman for value in the newer tract homes where equipment is properly specced from install. We don’t push one brand. We match the equipment to your home’s age, ductwork, and exposure. Call (855) 467-1888 and Jason will walk you through the actual options.
Ready to get your Merced home’s heating system diagnosed, repaired, or replaced? Call Stonegate Heating & Air California at (855) 467-1888 for a free estimate. Owner Jason Trent supervises every project, and we’ve got 16 years and nearly 500 reviews to back up the work.
Written by Jason Trent, Owner and Field Supervisor at Stonegate Heating & Air California, serving Merced and the central valley since 2009.