Seasonal tune-up and full diagnostic on your Carrier, Trane, or Goodman system - readings shown to you before any repair is proposed
Diagnosis first, numbers second - you approve the repair price before a single part goes in.
Before
After
Before
After
Before
AfterFast, Reliable Furnace Repair Across Lennox
Furnace repair in Lennox, CA typically costs between $150 and $700, depending on what failed. Most no-heat calls from Lennox homes get a same-day visit, and every repair starts with a written price before any work begins. We know Lennox the way a local should: the pre-1970 bungalows off Lennox Boulevard, the infill duplexes along Hawthorne, and the hard truth that a furnace sized for one block can be completely wrong for the next. Call (361) 306-9515 and a live person answers, 24/7.
If your furnace is down on a cold night and you live near Lennox Park or east of I-405, you want a technician who knows your streets and your housing stock. You don’t want a callback window that stretches into tomorrow afternoon. Our Furnace Repair team runs calls across Lennox from the LAX corridor over to Inglewood Avenue, and we carry ignitors, flame sensors, gas valves, and blower motors on the truck so the first visit usually ends with heat back on.
Why Dalton Heating & Air Is Lennox’s Preferred Furnace Repair Company
Dalton Heating & Air is a Garrison Partners company founded in 2003. That means every call to a Lennox home runs by The Garrison Standard: arrive inside the stated window, put the price in writing before starting, do the job by the book, leave the site clean, and stand behind the repair for a full year. Marco Benitez runs this operation, and the standard is not a suggestion. It is the terms of the job.
We answer the phone with a live person at 3 a.m. No voicemail queue. No callback window. When you call about a furnace repair in Lennox, you talk to someone who can dispatch a background-checked, uniformed technician, not a answering service reading a script. Our arrival window is real, and if the repair fails inside 365 days, the return visit is free. That is the 365-Day Done Right Promise, in writing, on every job.
We service all nine major residential HVAC brands: Carrier, Trane, Lennox, Goodman, Rheem, York, Daikin, Bryant, and American Standard. That matters in Lennox because the housing stock runs the full range, from 1940s Bryant units in original bungalows to near-new Goodman systems in infill builds. Factory training across the board means we diagnose by the book for whichever unit you have, not by guesswork.
Boiler Repair in Lennox
Boiler Repair in Lennox is a smaller slice of the heating work here, but we see it regularly in the older pre-1970 homes where hydronic systems were common. A boiler that rumbles, leaks, or stops reaching set temperature usually points to a circulator pump, a stuck zone valve, or a failing expansion tank. Most boiler repairs in Lennox fall in the same $150 – $700 range as furnace work, with the final number depending on the part and how much of it was waiting for the failure to get noticed.
Circulator and Zone Valve Failures
In Lennox boiler systems, the most common failure is the circulator pump. It moves hot water through the radiators or baseboards. When it seizes, you get heat in some rooms and cold spots in others. We replace pumps and zone valves the same visit, and the repair carries the same one-year written guarantee as any furnace work.
Expansion Tank and Pressure Issues
A waterlogged expansion tank over-pressurizes the boiler and the relief valve starts dripping. Left alone, that becomes a wet floor and a bigger repair. We check tank pressure on every boiler call in Lennox as part of the diagnostic, and we show you the reading before we write up a price.
Gas Furnace Repair in Lennox
Gas Furnace Repair in Lennox is our most common winter call. The housing here splits between uninsulated 1940s and 50s bungalows and much newer infill duplexes, which means two identical Lennox streets can have very different furnace problems. The older units fight dust, corrosion, and undersized returns. The newer units fight being oversized for the space. In both cases, the furnace usually fails on a high-limit trip, an ignitor, a flame sensor, or a blower motor, and repair runs $150 – $700 depending on what actually failed.
Ignitor and Flame Sensor Replacement
If your Lennox gas furnace clicks but will not light, or lights and then shuts off after a few seconds, the ignitor or flame sensor is the likely culprit. Coastal air and decades of dust corrode these parts faster in Lennox than in drier inland cities. We stock ignitors and flame sensors for Carrier, Bryant, Rheem, and York, so a no-heat call usually gets fixed in one visit.
High-Limit Trips and Airflow Correction
A furnace that runs a few minutes, shuts down, then fires again is often tripping the high-limit switch. The cause is usually restricted airflow: a packed blower wheel, an undersized return, or a clogged filter. We check static pressure and airflow on every gas furnace repair in Lennox, because airflow problems masquerade as heat exchanger failures all the time, and a $340 repair is better than a $4,800 replacement you did not need.
Trusted Brands We Service in Lennox
We work on Rheem, York, Daikin, and Bryant units every week in Lennox, plus the rest of the major brand lineup. Because we service all nine major residential HVAC brands, we stock the common parts for the units we see most on Lennox blocks: older Bryant and Carrier gas furnaces in the pre-1970 houses, Rheem and York in the 80s and 90s builds, and Daikin in the newer infill work. We keep the local parts supply moving so a no-heat call does not turn into a three-day wait on a gas valve.
Common Furnace Repair Problems We See in Lennox Homes
- High-limit trips from restricted airflow. Closet-installed furnaces with undersized returns and dirty blower motors are everywhere in Lennox. The furnace lights, overheats, and trips the limit. We fix the airflow, not the symptom.
- Ignition and flame-sensor faults. Coastal air and decades of dust corrode burners and flame sensors on older Carrier and Bryant units in Lennox’s pre-1970 housing. The furnace will not light, or cycles on and off before shutting down for good.
- Short-cycling from oversized equipment. Furnaces sized by square footage rather than a real load calculation overheat the heat exchanger and fail years early. We see this in Lennox infill builds where a big furnace got dropped into a tight, well-sealed duplex.
- Gas valve and blower motor failures. Both are common on units approaching 15 to 20 years old, which is most of the furnace stock in older Lennox neighborhoods. The fix is usually a same-day part swap, not a system replacement.
Pricing for Furnace Repair in Lennox, CA
We quote every Lennox furnace repair as a range before we start, and the written price holds. A diagnostic plus a common part replacement runs $150 – $700. Below is the line-item breakdown we give Lennox homeowners when they ask what a repair should cost:
| Service | Typical Lennox Price |
|---|---|
| Furnace repair (diagnostic + common part replacement) | $150 – $700 |
| Gas furnace tune-up / safety inspection | $80 – $200 |
What pushes a repair toward the top of that range is a major part: a gas valve, a blower motor, or a board. A flame sensor or ignitor lands at the low end. You get the exact price in writing before any part gets replaced, and estimates are free. Call (361) 306-9515 and we will tell you what a technician is likely to find before they even pull up.
One thing we tell every Lennox homeowner: a proper repair-versus-replace decision starts with measurements, not a square-foot guess. Lennox’s housing stock mixes older, uninsulated bungalows near the LAX flight path with newer infill duplexes, so furnace sizing swings wildly block to block. What warms a 1948 house on one street can short-cycle in a 2015 build two doors down. A load calculation, a static pressure reading, and a combustion analysis tell us whether your furnace is worth repairing or whether the money is better spent on a correctly sized replacement. That is the only honest way to answer the question in this city.
We got a no-heat call off Lennox Boulevard in January: a 2006 Carrier gas furnace that would light, run ten minutes, then trip on high-limit. Our tech pulled the blower motor and found the wheel packed with lint from a closet install with almost no return-air clearance, which had been quietly choking the heat exchanger for years. We cleaned the wheel, verified the heat exchanger with a combustion analyzer, corrected the static pressure, and the furnace held temp without tripping. That was a $340 repair instead of the $4,800 replacement the previous company had quoted. Lennox closets do this to furnaces all the time.
We Also Serve Cities Near Lennox
Our Furnace Repair in Lennox coverage also extends to neighboring areas. Homeowners in Los Angeles, San Diego, San Jose, and San Francisco call us for the same written pricing and one-year guarantee. If you are just outside Lennox, chances are we have a technician in your area this week.
Serving Lennox, CA - Our Local Coverage Area
We’re based in the Lennox 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 About Furnace Repair in Lennox
It is usually airflow. A high-limit trip means the furnace is overheating, and in Lennox’s closet-installed furnaces the cause is most often a packed blower wheel, an undersized return, or a clogged filter. A heat exchanger problem is possible, but it is the less common cause. We check both on every diagnostic, including a combustion analysis when heat exchanger failure is suspected. Call (361) 306-9515 and we will tell you what is actually happening before any repair is priced.
A load calculation measures your home’s actual heat loss: insulation, windows, orientation, air leakage, and the furnace’s static pressure. Lennox’s mix of old uninsulated bungalows and tight new infill builds means two houses on the same street can need very different furnace sizes. If your furnace is grossly oversized, the money you spend on repairs may be better spent on a correctly sized replacement. If the load calc shows the furnace is sized right, a $300 repair is almost always the smarter move.
Most furnace repairs in Lennox run $150 – $700. A flame sensor or ignitor lands at the low end. A gas valve, blower motor, or control board pushes toward the top. You get the price in writing before any part gets replaced, and the estimate is free. Call (361) 306-9515 for an exact quote on your unit.
Yes, and the number to look at is AFUE, not SEER2. SEER2 is a cooling metric. AFUE is the furnace’s annual fuel efficiency, and going from an 80% AFUE furnace to a 96% unit cuts your gas burn by roughly 16 cents per dollar. In Lennox, where winter nights run cold and older bungalows leak heat, that is noticeable on a monthly gas bill. We can show you the math for your actual house before you decide.
Yes. We repair both hydronic boilers and forced-air gas furnaces in Lennox. Older pre-1970 homes here often have boiler systems, and we carry the common parts: circulator pumps, zone valves, expansion tanks, and ignitors. The same one-year written guarantee applies to boiler repairs as to furnace repairs. Call (361) 306-9515 to schedule a visit.
If your Lennox furnace is down or running rough, do not wait for it to quit on the coldest night. Call (361) 306-9515 for a free estimate. We will put the price in writing, do the job by the book, and stand behind it for a full year. That is The Garrison Standard, and it is how we run every call in Lennox.
Written by Marco Benitez, Owner at Dalton Heating & Air, serving Lennox since 2003.