Fast, Reliable Heating & Furnace Across Orinda
When your furnace quits on a January night in Orinda, you’re not calling for a lecture on HVAC theory. You need a technician who knows your 1960s ranch on Moraga Way, your hillside split-level off Las Vegas Road, or your custom build near the Orinda Country Club — and who can get there fast. We serve Orinda from our East Bay dispatch, and most calls reach us within 30–45 minutes. Our Heating & Furnace team has handled everything from cracked heat exchangers in original Carrier furnaces to full duct redesigns for homes that never had central AC. Call (844) 875-9451 for a free estimate or emergency service.
Why Redwood Heating & Air San Diego Is Orinda’s Preferred Heating & Furnace Company
We’ve built our reputation in Orinda one repair at a time. Gregory Hahn founded this company and still leads every technical decision, which means when you call Redwood Heating & Air, you’re getting owner-level accountability — not a franchise dispatcher sending whichever crew is available. Our 428 verified reviews averaging 4.6 stars include dozens from Orinda homeowners who specifically mention our willingness to crawl through tight spaces, explain the ductwork problem in plain English, and fix what other companies misdiagnosed.
Our response time to Orinda averages under 45 minutes for emergency calls, and we carry parts for Trane, Carrier, Bryant, and American Standard on every truck. That matters here more than in most cities. Orinda’s valley location behind the Berkeley Hills creates 20–30 °F temperature swings compared to Oakland, yet many homes built in the 1950s–1970s here were originally equipped with gas furnaces only — meaning furnace retrofits and duct redesigns for modern AC loads are the norm, not the exception. We’ve spent 13 years learning those quirks. We know which crawl spaces flood in winter, which hillside lots have gas line access issues, and why that original 1969 furnace keeps short-cycling.
Our Heating & Furnace Services in Orinda
Furnace Repair
A furnace repair in Orinda typically runs $150–$700 and most jobs finish same-day. We see a lot of ignitor failures and gas valve issues in the older Lennox and Goodman units common in Orinda’s 1970s builds. The wide temperature swings here — 95 °F in summer, near-freezing winter mornings — stress components that never had to cycle this hard when the house was new. We recently serviced a 1960s ranch-style home on Moraga Way where the original forced-air furnace had a cracked heat exchanger and undersized ducts that couldn’t handle a new cooling coil. Our team replaced the old unit with a Trane 96% AFUE gas furnace, redesigned the trunk line in the crawl space, and added a zoning system so the family could heat the main living area separately from the bedrooms — all while preserving the home’s original wood-paneled returns.

Furnace Replacement
Full furnace replacement in Orinda ranges from $3,500–$7,500, with most custom homes landing in the middle due to duct modifications. This is where our multi-brand expertise pays off. We don’t push one manufacturer. We match the right system to your home’s existing gas line capacity, duct geometry, and whether you’re planning to add AC later. Many Orinda homeowners use the replacement as their moment to solve the “furnace-only” problem once and for all. We’ll tell you honestly if your ducts can handle a cooling coil or if you need a full redesign.

Furnace Tune-Up
An annual furnace tune-up in Orinda costs $80–$200 and typically prevents the mid-winter emergency calls we field every January. We focus on heat exchanger inspection, gas pressure testing, and combustion analysis — the checks that matter in these older systems. Given how many Orinda furnaces run 20–30 years, catching a cracked exchanger early isn’t about efficiency. It’s about safety.

Heat Exchanger Inspection & Replacement
Cracked heat exchangers are the hidden danger in Orinda’s original 1960s–70s gas furnaces. Decades of cycling through those wide temperature swings fatigue the metal. We use combustion analyzers and borescope cameras to inspect without disassembling the whole unit. If replacement makes more sense than repair, we’ll show you the crack and explain why. No scare tactics. Just the facts and your options.

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 Orinda
We’re certified to work on nine major HVAC brands, and we stock common parts for Carrier, Trane, Bryant, and American Standard on our Orinda-area trucks. That local parts inventory means most repairs finish in one visit, not two. We’ve also built relationships with distributors in the East Bay for same-day or next-morning access to less common components. Whether your Orinda home runs a 1980s Bryant that’s finally given out or a newer American Standard that needs warranty work, we service your brand — not whatever our company happens to sell.
Common Heating & Furnace Problems We See in Orinda Homes
- Cracked heat exchangers in original 1960s–70s gas furnaces. Decades of cycling through Orinda’s wide temperature swings fatigue the metal. We catch these with combustion analysis before carbon monoxide becomes a risk.
- Undersized ductwork designed only for heating. When Orinda homeowners add AC to a furnace replacement, the original ducts often can’t handle the static pressure of a cooling coil. We redesign trunk lines in crawl spaces and attics to solve this.
- Short-cycling in multi-level split-level homes. Orinda’s hillside split-levels with crawl spaces create uneven heating loads. A single thermostat can’t manage it. We add zoning or relocate sensors.
- Gas valve and ignitor failures in aging systems. Original components in 50-year-old furnaces simply wear out. We carry replacements for Goodman, Lennox, and Carrier units on every truck.
Pricing for Heating & Furnace in Orinda, CA
Here’s what furnace work actually costs in Orinda’s market. These ranges reflect real jobs we’ve completed in 94563 over the past two years.
| Service | Typical Range in Orinda |
|---|---|
| Furnace Repair | $150 – $700 |
| Furnace Replacement | $3,500 – $7,500 |
| Furnace Tune-Up | $80 – $200 |
What moves you within these ranges? Duct condition is the big one. A straight furnace swap in a home with good ductwork lands at the lower end. Add a full duct redesign for future AC, and you’re looking at the upper end. Gas line upgrades, custom plenums for crawl-space installs, and zoning systems also add cost. We price every job upfront after inspection — no open-ended hourly billing. Call (844) 875-9451 for a free estimate and we’ll give you a firm number.
We Also Serve Cities Near Orinda
Our East Bay coverage extends to Lafayette, Piedmont, Berkeley, and Saranap. The same technicians who know Orinda’s hillside furnaces and crawl-space ductwork handle calls across these nearby cities. If you’re just outside 94563, call anyway — we likely cover your address.
Serving Orinda, CA — Our Local Coverage Area
We’re based in the Orinda 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 Orinda
Yes, but your existing ducts were probably sized only for heating airflow and will likely need redesigning to handle a cooling coil’s higher static pressure. We’ve completed dozens of these retrofits in Orinda’s 1950s–1970s homes, often running new trunk lines through crawl spaces while preserving original returns. Call (844) 875-9451 and we’ll inspect your ductwork for free.
Short-cycling usually means the furnace is overheating due to restricted airflow or an oversized burner for your current duct capacity. In Orinda’s older homes, we often find clogged filters combined with undersized returns that worked fine when the house was new but can’t move enough air after decades of dust accumulation. A tune-up and possible duct modification fixes most cases. Call (844) 875-9451 to schedule inspection.
Yes. Turn off the gas at the shutoff valve if you can locate it safely, leave the house, and call your gas utility’s emergency line first, then call us at (844) 875-9451. Do not operate electrical switches or use your phone inside the house. Gas leaks near furnaces often trace to cracked heat exchangers or failing valve connections — both require professional repair. This is not a DIY situation.
Yes. The Berkeley Hills trap wildfire smoke in Orinda’s valley in ways that don’t affect coastal Bay Area cities. We recommend MERV 13 or higher during fire season, provided your furnace blower can handle the restriction. Many older Orinda systems need a blower upgrade to run these filters without damage. We test static pressure during tune-ups to confirm compatibility.
Most Orinda furnace replacements run $3,500–$7,500, with the median around $5,200 for a standard-efficiency unit with basic duct connections. Homes needing full duct redesign for future AC land higher. Call (844) 875-9451 for a free, exact quote based on your home’s specific layout and existing equipment.
Written by Gregory Hahn, Owner at Redwood Heating & Air, serving Orinda and the East Bay since 2012.