Fast, Reliable Heating & Furnace Across Kensington
Heating and furnace repair in Kensington typically costs $150–$700 for repairs, $3,500–$7,500 for full replacement, and most service calls are completed same day. Crestview Heating & Air California brings nearly two decades of HVAC experience to Kensington’s unique housing stock, from original 1920s gravity floor furnaces to modern retrofits. We’re familiar with the fog-influenced microclimate, the Diablo wind heat spikes, and the permitting quirks of unincorporated Contra Costa County. If your furnace won’t light or your heat exchanger has failed, call us at (844) 560-6978 for a free estimate.
Why Crestview Heating & Air California Is Kensington’s Preferred Heating & Furnace Company
Our reputation in Kensington is built on showing up for homes that other companies decline. We’ve earned a 4.8-star average across 250+ customer reviews, and many of those come from East Bay hillside homeowners who finally found a technician willing to work on their legacy systems. Owner Marcus Feldman serves as our Service Manager, so ownership-level accountability isn’t a slogan, it’s how we dispatch every job.
Response time to Kensington matters when Diablo winds push temperatures 30°F above normal and your floor furnace quits. We’re based in San Jose with crews routing through the Caldecott Tunnel corridor regularly. Most Kensington calls get same-day or next-morning service.
We know the local terrain. The marine moisture rolling off the Bay corrodes outdoor equipment faster here than in drier Contra Costa flatlands. The plaster-and-lath walls in Kensington’s craftsman bungalows complicate every retrofit. And because Kensington is unincorporated Contra Costa County, not Berkeley or El Cerrito, permits run through a separate building inspection office that catches contractors off guard. We’ve navigated that pipeline enough times to know the fee schedule and inspection timing.
Our Heating & Furnace Services in Kensington
Furnace Repair
Furnace repair in Kensington runs $150–$700 depending on the part and accessibility. We regularly repair Lennox, Goodman, Rheem, and Trane units, but we’re also one of the few companies that still services original gravity floor furnaces in Kensington’s pre-1955 housing stock. The corroded heat exchangers we find in these systems are a direct result of decades of marine moisture exposure. If your pilot won’t stay lit or your ignitor keeps failing, we’ll diagnose whether the part is still available or if it’s time to discuss replacement.

Furnace Replacement
Full furnace replacement in Kensington typically costs $3,500–$7,500, with the upper end reflecting homes that need electrical upgrades or gas line modifications to accommodate modern equipment. Many Kensington homes on Colusa Avenue, Arlington Avenue, and the hillside streets above Moeser Lane were built with gravity furnaces that can’t simply be swapped for forced-air units. We evaluate whether your crawl space and attic can accommodate ductwork, or whether a ductless heat pump system makes more sense. We pulled permits through Contra Costa County Building Inspection for a 1932 Tudor revival on Colusa Avenue where the original floor furnace had corroded beyond repair. Because the plaster-and-lath walls and small crawlspace precluded ductwork, we installed a Mitsubishi ductless mini-split heat pump system, the homeowners got efficient heating and cooling without invasive construction.

Furnace Tune-Up
A furnace tune-up in Kensington costs $80–$200 and should happen every fall before the heating season starts. In Kensington’s climate, the combination of marine moisture and long periods of furnace disuse means we find significant corrosion on burners and heat exchangers that inland cities don’t see. Our tune-up includes combustion analysis, gas pressure verification, and inspection for cracks in the heat exchanger that could leak carbon monoxide into your home. For homes with original floor furnaces, we’ll inspect the venting integrity and check for proper draft, critical safety items in older systems.

Heat Exchanger Inspection & Replacement
Heat exchanger failure is the most serious problem we encounter in Kensington’s older furnaces. The constant fog and salt air accelerate metal fatigue, and a cracked heat exchanger can leak carbon monoxide into living spaces. Replacement costs vary widely based on furnace age and brand availability, sometimes exceeding the value of a 30-year-old unit. We’ll give you an honest assessment of repair versus replacement, with real numbers, no pressure.

What happens when you call
- 1
A real person answersNo phone trees — you reach a local pro.
- 2
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 Kensington
Your system, our specialty. We maintain factory-trained compatibility across nine major brands, and for Kensington customers we regularly stock parts for Trane, Lennox, Goodman, and Rheem systems. Our San Jose warehouse carries common ignitors, gas valves, and heat exchanger assemblies, which means faster turnaround on repairs and fewer return trips. If you own a Carrier, York, Daikin, Bryant, or American Standard unit, we service those too, we just don’t want any Kensington homeowner told “we don’t work on that.” Owner-managed, not outsourced.
Common Heating & Furnace Problems We See in Kensington Homes
- Corroded heat exchangers in original gravity furnaces. Decades of marine moisture from Kensington’s fog microclimate rust through steel heat exchangers in floor furnaces that have no protective coating left. We check these with borescope cameras during every service call because the failure mode is silent and dangerous.
- Pilot light or ignitor failures in legacy floor furnaces. Many brands that manufactured these units in the 1940s and 1950s no longer exist, and parts availability is shrinking every year. When we can’t source a replacement, we’ll explain your retrofit options with actual installed costs.
- Gas valve failures in long-neglected systems. Because Kensington’s mild climate historically suppressed cooling demand, many furnaces sat unused for months and were never serviced. Sudden Diablo wind heat events now stress these dormant systems, and stuck or leaking gas valves are a common first symptom.
- Musty odors on first fall startup. The persistent marine moisture in Kensington’s 94530 ZIP code promotes mold and mildew growth on furnace components during summer disuse. That first-burn smell is often biological contamination, not just dust, and it warrants inspection.
Pricing for Heating & Furnace in Kensington, CA
We’re transparent about costs because Kensington homeowners deserve real numbers, not bait-and-switch tactics. Here’s what heating and furnace service typically runs in the 94530 market:
| Service | Price Range in Kensington |
|---|---|
| Furnace Repair | $150 – $700 |
| Furnace Replacement | $3,500 – $7,500 |
| Furnace Tune-Up | $80 – $200 |
What moves the needle within these ranges? Accessibility matters in Kensington’s narrow crawl spaces and small attics. Brand availability matters for legacy systems where OEM parts are scarce. And permit requirements through Contra Costa County Building Inspection add a fixed cost that Berkeley contractors sometimes forget to quote. We’ll walk through your specific situation on a free estimate call. Call (844) 560-6978 to schedule, estimates are free and there’s no obligation.
We Also Serve Cities Near Kensington
Our Heating & Furnace team regularly routes through the East Bay hills to serve El Cerrito, Albany, Richmond, and Berkeley. Each city has its own permitting jurisdiction and housing stock quirks, we know the difference between Berkeley’s rent board inspections and Contra Costa County’s Title 24 enforcement. If you’re on the border between Kensington and one of these neighbors, we’ll confirm your exact jurisdiction before we quote.
Serving Kensington, CA — Our Local Coverage Area
We’re based in the Kensington 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 Kensington
Yes, we repair original floor furnaces in Kensington’s 1920s–1950s housing stock, and we’ve successfully sourced parts for units other companies won’t touch. The repair runs $150–$700 if the ignitor, thermocouple, or gas valve is still available. If the manufacturer is defunct and parts are obsolete, we’ll explain your retrofit options, including ductless heat pumps that avoid tearing into plaster-and-lath walls. Call (844) 560-6978 for a free diagnostic.
Yes, all furnace replacements in Kensington require a permit through Contra Costa County Building Inspection, not Berkeley or El Cerrito. The county has its own fee schedule, inspection pipeline, and Title 24 enforcement staff. We’ve pulled dozens of these permits and schedule inspections around your availability. Contractors unfamiliar with unincorporated Contra Costa County often miss this jurisdiction switch. We’ll handle the paperwork as part of your installation.
The smell is usually mold or mildew growth on the heat exchanger, burners, or duct surfaces caused by Kensington’s persistent marine moisture during summer disuse. Unlike drier inland cities, Kensington’s fog microclimate keeps humidity levels high enough for biological growth even when the furnace is off. A professional cleaning during a $80–$200 tune-up eliminates the odor and checks for combustion safety. If the smell persists beyond the first cycle, call us, it could indicate a blocked vent or heat exchanger crack.
Usually not without significant construction. Kensington’s craftsman bungalows and Tudor revivals have plaster-and-lath walls, narrow crawl spaces, and small attics that make new ductwork invasive and costly, often $10,000+ beyond the furnace itself. We’ve found that ductless mini-split heat pumps work better for most Kensington retrofits, providing heating and cooling without tearing into original construction. We’ll assess your specific floor plan and give you honest numbers for both approaches.
We service all nine major brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. For Kensington’s older housing stock, we most commonly repair Trane, Lennox, Goodman, and Rheem units, and we stock parts for faster turnaround. Even if your furnace is 40 years old and the brand sticker is worn off, our 19 years of field experience means we’ve probably seen it. Call (844) 560-6978 to describe your unit.
Written by Marcus Feldman, Owner and Service Manager at Crestview Heating & Air California, serving Kensington and the East Bay since 2005.