Lennox HVAC Installation & Repair
Technicians Near You — Same-Day Service in Los Angeles
EA Mechanical installs and services Lennox Signature, Elite, and Merit series HVAC systems across Los Angeles and the San Fernando Valley. We are an independent contractor — not a single-brand dealer — which means we recommend the right system for your home, and Lennox is regularly that recommendation when efficiency or low operating cost is the priority. Call (818) 988-9060 for a free quote.
Lennox has historically led the residential HVAC industry on top-end efficiency. The current Signature SL28XCV variable-capacity AC is rated up to 28 SEER2 — among the highest in the residential AC market — and the SL297NV gas furnace runs at 97% AFUE with a true variable-capacity gas valve. For LA homeowners chasing the lowest possible LADWP and SoCalGas bills, Lennox often produces the lowest projected operating cost.
Because we are not contractually tied to Lennox, we will also tell you when a different brand makes more sense for the home, the budget, or the timeline. Lennox parts are sometimes harder to source same-day in Los Angeles than Carrier or Trane, which can matter on emergency repair calls — we account for that when we quote.
Lennox Models We Install Most in LA
- Lennox Signature SL28XCV — up to 28 SEER2 variable-capacity AC, IRA tax-credit eligible.
- Lennox Signature XC25 — variable-capacity AC pairing well with the iComfort thermostat.
- Lennox Elite XC21 — two-stage AC for mid-range premium installs.
- Lennox Merit ML14XC1 — single-stage AC for budget replacement jobs.
- Lennox Signature SL297NV gas furnace — 97% AFUE variable-capacity gas valve.
- Lennox Signature SL18XP1 heat pump — variable-capacity heat pump for full electrification.
Typical Lennox System Cost in LA (Installed)
A Lennox Merit single-stage AC replacement typically runs $5,800 to $8,800 installed for a 3-ton system in the San Fernando Valley. A Lennox Elite two-stage system runs $8,000 to $11,500. The flagship Signature SL28XCV variable-capacity system, paired with the iComfort S30 thermostat and a matched Lennox coil, runs $13,000 to $18,500 installed. A complete Signature AC plus SL297NV variable-capacity 97% AFUE furnace on a typical 1,800-square-foot home falls between $16,000 and $22,000. Pricing varies with tonnage, electrical work, and line-set replacement.
Why Customers Pick Lennox
Lennox earns the most points in two scenarios: when the homeowner wants the highest possible SEER2 rating to minimize operating cost over a long ownership period, and when the home pairs well with the iComfort smart thermostat ecosystem. The iComfort S30 integrates well with humidity, ventilation, and zoning controls, and gives some of the best diagnostic visibility on the residential market. For the right homeowner, the long-run electricity savings on a 28 SEER2 system can offset the higher install cost within 6 to 9 years against typical LADWP residential rates.
Service Availability for Lennox in the Valley
EA Mechanical services Lennox residential equipment of any age. We carry common Lennox parts on the truck — capacitors, contactors, ignitors, flame sensors — but Lennox-specific control boards, variable-capacity inverter components, and proprietary parts may take 1 to 3 business days to source from the Los Angeles Lennox distributor. We will tell you on the diagnostic call whether a part is on the truck or needs to be ordered.
Warranties on a Lennox Install
Lennox Signature series ships with a 10-year parts warranty and a 10-year compressor warranty when the system is registered within 60 days of install. Elite and Merit series carry 10-year parts when registered. EA Mechanical adds a one-year labor warranty on every install and handles registration so you do not lose the long warranty by missing the registration window.
Common Lennox Issues We See in LA
- iComfort thermostat showing alert code
- Lennox iComfort thermostats display specific fault codes. Many are advisory rather than emergency — call (818) 988-9060 with the code and we can often triage by phone.
- Variable-capacity system not modulating
- Often a communication fault between the iComfort thermostat, the indoor coil, and the outdoor inverter board. Requires Lennox-specific diagnostic tools.
- SL297NV furnace lockout after a few cycles
- Frequently a flame-rectification issue from a dirty flame sensor. Cleaning is a 20-minute fix during a tune-up.
- Lennox condenser louder than it used to be
- Inverter fan-motor bearings or a loose mounting bracket. Worth diagnosing early — replacing a fan motor is far cheaper than replacing the compressor it eventually damages.
These symptoms can have multiple causes. For safe, accurate diagnosis and repair, call E & A Mechanical at (818) 988-9060. Attempting HVAC repairs without proper training and licensing can void warranties and create safety hazards.
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