AC Repair
same-day cooling diagnostics, weak airflow, short cycling and high indoor temperatures
Typical range: $129–$650
We work on: split central AC, rooftop package unit, variable-speed condenser
Read engineering brief →Service catalog · 4.9 ★ · 612 LA reviews
Los Angeles HVAC services for real building conditions
Engineer-led Los Angeles HVAC services: AC repair, heat pump installation, heat pump replacement, ductless mini split installation, ductwork design, furnace repair, indoor air quality, smart thermostats, emergency HVAC and rooftop package units. Same-day diagnostics across 30+ LA cities. 4.9★ from 612 reviews.
Skyline Thermal Labs service catalog
Los Angeles HVAC services for real building conditions
Every Los Angeles home, condo, ADU and small-commercial building has its own HVAC failure pattern. Coastal homes corrode; valley homes overheat their attics; hillside homes fight access and noise; historic homes resist invasive ductwork; condos hit HOA approval cycles. Skyline Thermal Labs publishes a service catalog that addresses each pattern by name. We do not run a one-script sales playbook on 30+ different microclimates.
Pricing across the catalog spans $129 for verified diagnostics through $24,500 for fully-engineered hillside or coastal heat pump replacements. Each service page lists the typical range, the equipment we work on, the deliverables in the written report and the differentiator that drives the work. Same-day diagnostic windows are usually available across the LA basin; emergency dispatch runs 24/7 for no-cool, no-heat, water-leak and electrical-safety calls.
For brand specifics, see our Carrier, Trane, Lennox, Mitsubishi Electric, Daikin, Bosch and Fujitsu service pages. For city-specific HVAC, see our Service Areas hub.
Heat Pump Installation
high-efficiency heat pump design, rebates, electrification and comfort planning
Typical range: $7 800–$24 500
We work on: ducted inverter heat pump, dual-fuel system, cold-climate heat pump
Read engineering brief →Heat Pump Replacement
replace aging condensers, upgrade refrigerant platforms and improve seasonal efficiency
Typical range: $6 900–$22 000
We work on: inverter condenser, matched evaporator coil, air handler
Read engineering brief →Ductless Mini Split Installation
quiet ductless comfort for ADUs, studios, additions, garages and rooms with poor duct access
Typical range: $4 200–$18 500
We work on: single-zone mini split, multi-zone condenser, ceiling cassette
Read engineering brief →HVAC Maintenance
seasonal tune-ups, coil cleaning, airflow testing and reliability checks
Typical range: $149–$480
We work on: central AC, heat pump, furnace
Read engineering brief →Furnace Repair
gas furnace safety, ignition faults, blower problems and uneven winter heat
Typical range: $139–$880
We work on: gas furnace, induced draft furnace, variable-speed blower
Read engineering brief →Ductwork Design and Replacement
attic duct replacement, static pressure reduction, zoning and airflow balancing
Typical range: $2 500–$18 000
We work on: attic duct system, crawlspace ducting, zoned dampers
Read engineering brief →Indoor Air Quality
filtration, ventilation, humidity, wildfire smoke and dust control
Typical range: $680–$6 200
We work on: MERV media cabinet, ERV, UV light
Read engineering brief →Smart Thermostat Installation
Nest, ecobee and communicating control upgrades without comfort regressions
Typical range: $225–$950
We work on: Nest, ecobee, Honeywell Home
Read engineering brief →Emergency HVAC Repair
urgent no-cool, no-heat and water-leak calls with fast triage
Typical range: $179–$980
We work on: AC condenser, heat pump, furnace
Read engineering brief →Rooftop Package Unit Service
low-slope roof package units for small multifamily, retail and mixed-use properties
Typical range: $240–$2 400
We work on: gas-electric package unit, heat pump package unit, economizer
Read engineering brief →Zoning and Air Balancing
room imbalance, zoning dampers, returns and comfort corrections after remodels
Typical range: $380–$6 800
We work on: zone dampers, bypass ducts, return air grilles
Read engineering brief →Engineer-led HVAC, reviewed by neighbors
What Los Angeles homeowners actually say
4.9 ★ average from 612 verified reviews — every quote below is also embedded in this page’s Product schema with star ratings.
We replaced a 14-year-old AC with a ducted Mitsubishi heat pump after our compressor finally gave up. Marcus and his crew actually did a Manual J-style load review instead of just copying the old nameplate. They found we were one ton oversized which explained the short cycling. Six weeks in and our upstairs is finally comfortable for the first time. They also documented everything for the LADWP rebate so we did not have to chase paperwork.
Called Skyline Thermal Labs at 7am on a Saturday when our AC stopped cooling during the heat wave. Tech was at our place by 11am, diagnosed a failed run capacitor and a low charge from a slow leak in the line set. Fixed the capacitor on the spot, scheduled the leak repair for Monday with a temporary fix so we had cooling overnight. Honest pricing and they explained everything before doing the work.
Our condenser was eaten alive by salt air after only six years. Skyline came out, did a corrosion audit and recommended a coastal-rated unit with a coil coating instead of just selling us another standard system. The install was clean, the line set was hidden behind the side yard fence and they walked us through a coastal maintenance schedule. No upsell pressure. Refreshing.
We have a 1923 Craftsman so any HVAC work is tricky. Three other companies wanted to gut our ceilings to redo the ducts. Skyline figured out a hybrid plan: keep the existing trunk, add two return-air drops and put a slim-ducted Daikin system upstairs. Quiet, efficient, and we did not lose a single piece of original molding. Worth every dollar for the design thinking alone.
After the 2025 fires our Sherman Oaks home had smoke residue in the ducts and our older filter cabinet was bypassing air around the filter. The team sealed the cabinet, upgraded us to a MERV 13 media filter that actually fits, and showed us how to use the fan-only mode during smoke events. Particle counts in the bedrooms dropped within an hour. Our youngest stopped waking up congested.
Our place is on a steep lot in Laurel Canyon. Two contractors said they could not place a condenser without a crane. Skyline routed a longer line set to a side terrace, used a wall-mount platform with vibration isolators and the unit is dead silent at the property line. They also pulled the permit and dealt with our nervous neighbor. Very pro.
Cross-link map
High-demand Los Angeles HVAC cities and brands
FAQ
Common HVAC questions across our LA service catalog
Can I get a same-day HVAC service appointment in Los Angeles?
Most Los Angeles requests are triaged within the same business hour. Standard diagnostics in Los Angeles are typically scheduled same-day or next-day depending on urgency, equipment access and current dispatch load. Emergency comfort failures get priority routing 24/7. Average dispatch arrival window for Los Angeles runs 34–64 minutes during business hours.
Why does HVAC service pricing vary so much across Los Angeles?
Los Angeles HVAC service pricing falls between $129 and $24 500. Variables that move the number include indoor coil match, line-set length and lift, condensate routing, panel capacity, HOA approval cycles and after-hours dispatch. The estimate explains each variable in writing rather than burying it in the labor line.
Which HVAC brands does Skyline Thermal Labs install and repair?
Yes. Skyline Thermal Labs services Carrier, Trane, Lennox, Mitsubishi Electric, Daikin, Bosch, Fujitsu, Bryant, Rheem, Goodman, American Standard, York, Ruud, LG and major control platforms (Nest, ecobee, Honeywell Home, communicating thermostats). Brand-specific diagnostics — ComfortLink fault codes, Infinity fault history, Mitsubishi M-NET errors, Daikin One commissioning data — are matched to the equipment installed at your home.
What credentials does the crew carry?
Every Skyline Thermal Labs technician completes a background check, drug screening and brand-platform certification before entering customer homes. The company carries general liability and workers’ compensation coverage, and our installation managers hold EPA Section 608 universal certification for refrigerant handling. Our crew is also A2L-certified for current refrigerant platforms (R-454B, R-32). Documentation is available on request.
Can I use rebates or financing for HVAC work in Los Angeles?
Yes — LADWP, TECH Clean California and federal credit documentation is built into our workflow, not improvised at submission. The folder includes the AHRI matchup certificate, manufacturer specification sheets, paid invoice, permit card and commissioning data. Financing options run from 0% promotional periods (12–24 months) through 5–12 year low-APR plans (6.99–9.99% APR depending on credit). We do not mark up financing.
What is the workmanship guarantee on installation labor?
Our 2-year workmanship guarantee covers installation labor; the 1-year diagnostic-repair guarantee covers parts replacement on the original repaired component. Manufacturer parts warranties typically extend 10 years (with timely registration); compressor warranties on premium platforms reach 10–12 years. We register the warranty on your behalf when you provide serial numbers within 60 days.