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HVAC Services in
Altadena, CA

LC Heating & Air serves Altadena with 72 HVAC services โ€” AC repair, furnace service, mini splits, heat pumps, duct cleaning, air quality, and emergency HVAC 24/7. CSLB Licensed #1073586.

(323) 970-3113 โ€” Call now

All HVAC services in Altadena

Hover over a category below to explore all 72 residential HVAC services available in your area.

Local expertise

HVAC in Altadena โ€” what you need to know

Altadena is an unincorporated community nestled against the San Gabriel Mountains directly north of Pasadena. The neighborhood experienced devastating impacts from the 2025 Eaton Fire, which destroyed homes and left airborne particulates throughout the community that require professional HVAC assessment and remediation. LC Heating & Air has been actively serving Altadena residents in the fire's aftermath โ€” inspecting HVAC systems for smoke and ash infiltration, replacing contaminated filters and ductwork, and installing air purification systems to restore safe indoor air quality. Beyond fire remediation, Altadena's foothill location creates a distinctive microclimate: warmer summers than coastal LA due to distance from the ocean, but cooler winters than the Valley due to mountain proximity and elevation. The 91001 zip code encompasses homes ranging from modest 1940s bungalows to large estates, all of which benefit from HVAC systems properly sized for the area's specific climate conditions.

Local HVAC Challenges

The 2025 Eaton Fire created an acute HVAC challenge for Altadena: smoke and ash infiltration into duct systems, contaminated air filters, and soot deposits on evaporator coils and heat exchangers. Homes in the fire's path need complete duct inspection and cleaning, filter replacement with HEPA-grade filtration during the remediation period, and in some cases coil replacement where heat damage has compromised efficiency. Beyond fire impacts, Altadena's foothill location means properties face wildfire risk generally and should invest in air quality measures including MERV 13+ filtration and whole-house air purification.

Neighborhood Context

Altadena's mountain proximity means cooler overnight temperatures in winter โ€” heating demand is higher than in the LA basin, and furnace maintenance is correspondingly more important. Many Altadena homes have gas furnaces that provide critical heating during December through February when overnight temperatures can drop into the 30s. We provide thorough furnace inspection including heat exchanger integrity testing, combustion analysis, and gas connection verification โ€” all essential safety checks that protect your family from carbon monoxide exposure.

Neighborhoods we serve in Altadena

We provide HVAC service throughout Altadena including Christmas Tree Lane, Meadows Area, Kinneloa Mesa, Janes Village, Eaton Canyon Area, and all surrounding streets and residential areas. If you are unsure whether we cover your specific address, call (323) 970-3113 โ€” we almost certainly do.

Why LC Heating & Air
CSLB Licensed #1073586
5.0โ˜… Google โ€” 300+ reviews
Serving LA since 2004
Same-day service available
Free written estimate on every job
24/7 emergency calls
12-month labor warranty
All major brands serviced
No hourly billing on repairs
Call (323) 970-3113Request free estimate
Our nearest office
๐Ÿ“ Pasadena / East LA โ€” 1308 E Colorado Blvd
Service details

HVAC services we provide in Altadena

LC Heating & Air provides a complete range of residential HVAC services in Altadena. We are a one-call solution โ€” you do not need to hire one company for AC and another for your furnace. Every technician on our team is trained and equipped to handle any HVAC issue.

AC Repair in Altadena

When your air conditioner stops cooling in Altadena, we can usually be there the same day. We diagnose all AC makes and models โ€” Carrier, Lennox, Trane, Rheem, Goodman, Daikin, and others. Common repairs include capacitor replacement, refrigerant leak repair and recharge, coil cleaning, fan motor replacement, and thermostat issues. Most repairs are completed in a single visit.

AC Installation in Altadena

A properly sized and installed AC system runs more efficiently, lasts longer, and maintains more consistent comfort than an oversized or undersized unit. We perform Manual J load calculations for every installation in Altadena to ensure correct sizing. We handle ductwork modifications, electrical connections, and permit procurement as part of every installation project.

Furnace Repair in Altadena

Altadena winters are mild compared to most of the country, but a furnace failure on a cold night is still an urgent problem โ€” especially for elderly residents and homes with young children. We repair all furnace types including gas, electric, and heat pump air handlers. Most furnace issues โ€” igniter failure, heat exchanger problems, blower motor failure โ€” are diagnosed and repaired in a single visit.

Furnace Installation in Altadena

If your Altadena home's furnace is over 15 years old or requires repeated repairs, replacement is often the more cost-effective choice. Modern high-efficiency furnaces (96+ AFUE) significantly reduce heating costs compared to older 80% models. We size, select, and install complete furnace systems with proper combustion air analysis, flue venting, and thermostat configuration.

Mini Split Installation in Altadena

Ductless mini split systems are ideal for Altadena homes that lack existing ductwork, have room additions or ADUs, or want room-by-room temperature control. Mini splits from Mitsubishi, Daikin, and LG provide both heating and cooling with no ductwork required. We assess your home's layout, recommend the right capacity, and complete the installation including wall penetrations, line sets, and electrical connections.

Heat Pump Services in Altadena

Heat pumps are the most energy-efficient heating and cooling solution for Altadena's mild climate. A properly sized heat pump can cut heating costs by 40 to 60 percent compared to a gas furnace. California offers substantial rebates on qualifying heat pump installations through TECH Clean California and utility programs. We assess whether a heat pump is appropriate for your home and handle the full installation with rebate documentation.

Duct Cleaning in Altadena

Altadena homes accumulate dust, allergens, and debris in their ductwork over time โ€” and wildfire smoke from recent events can leave particles throughout a duct system. Professional duct cleaning removes contaminants that recirculate through your home with every HVAC cycle. We use NADCA-compliant equipment including high-powered negative air machines and rotary brush systems to clean the full duct system, not just the registers.

Air Quality & IAQ in Altadena

Indoor air quality is a health issue, not an upsell. Post-wildfire smoke, mold from drain line backups, VOCs from new construction or renovation โ€” Altadena residents face real IAQ challenges. We offer air quality assessments, UV germicidal light installation, HEPA filtration upgrades, whole-house humidifiers and dehumidifiers, and Eaton Fire remediation for homes affected by the January 2025 fires.

HVAC Maintenance in Altadena

Annual HVAC maintenance is the single most cost-effective thing a Altadena homeowner can do to extend equipment life and prevent breakdowns. Our maintenance visits include full system inspection, refrigerant level check, coil cleaning, electrical connection tightening, lubrication of moving parts, filter replacement, and a written report of any issues found. We offer annual and bi-annual maintenance plans at a discount over individual visit pricing.

Emergency HVAC in Altadena

HVAC emergencies in Altadena โ€” a complete AC failure during a summer heat wave, a gas furnace outage on a cold winter night, or a refrigerant leak causing compressor damage โ€” cannot wait until Monday morning. We answer the phone 24/7 and respond to Altadena emergencies any time, any day. For complete system failures affecting elderly residents or households with health conditions, we prioritize same-day or next-available response.

FAQ

HVAC questions for Altadena homeowners

How quickly can LC Heating & Air respond to an HVAC call in Altadena?
We offer same-day HVAC service throughout Altadena and surrounding neighborhoods. For emergency AC or heating failures, we typically arrive within 60 to 90 minutes. Call (323) 970-3113 any time โ€” we answer 24/7, including weekends and holidays.
Is LC Heating & Air licensed to do HVAC work in Altadena, CA?
Yes. LC Heating & Air holds California Contractors State License Board license #1073586, which covers all HVAC installation, repair, and replacement work throughout Altadena and all of Los Angeles County. We are fully insured with liability and workers' compensation coverage on every job.
What HVAC services does LC Heating & Air provide in Altadena?
We provide a full range of residential HVAC services in Altadena: AC repair and installation, furnace repair and installation, ductless mini split systems, heat pump services, duct cleaning, indoor air quality assessment and remediation, preventive maintenance, and 24/7 emergency service. We work on all major brands including Carrier, Lennox, Trane, Rheem, Goodman, Daikin, and Mitsubishi.
Do you provide free estimates for HVAC work in Altadena?
Yes. Every job โ€” whether it is a repair call or a full system installation โ€” starts with a free written estimate. You see the price before any work begins and approve it before we touch anything. We do not charge by the hour for repair visits and never add charges without discussing them with you first.
What are the most common HVAC problems in Altadena?
Altadena residents most commonly call us for: Air Quality & IAQ, Duct Cleaning, AC Repair, Furnace Repair, HVAC Maintenance. The 2025 Eaton Fire created an acute HVAC challenge for Altadena: smoke and ash infiltration into duct systems, contaminated air filters, and soot deposits on evaporator coils and heat exchangers. Homes in the fire's path need complete duct inspection and cleaning, filter replacement with HEPA-grade filtration during the remediation period, and in some cases coil replacement where heat damage has compromised efficiency. Beyond fire impacts, Altadena's foothill location means properties face wildfire risk generally and should invest in air quality measures including MERV 13+ filtration and whole-house air purification.
Does LC Heating & Air work with Altadena utility rebates and CA energy incentives?
Yes. California and local utilities offer rebates on qualifying high-efficiency HVAC equipment โ€” including heat pumps, high-SEER air conditioners, and qualifying furnaces. We are familiar with current LADWP, SoCalGas, and statewide programs and will identify applicable rebates during your estimate appointment. In many cases, rebates can reduce the effective cost of a system replacement by several hundred to over a thousand dollars.
Verified Reviews

What Altadena homeowners say

Real reviews from customers in Altadena and nearby neighborhoods.

5.0 โ˜… Google
300+ verified reviews

โ€œLC replaced our entire HVAC system โ€” new Carrier condenser, furnace, and coil. Leo walked us through every option without pressure. The install team was professional and clean. System runs perfectly and our electricity bill dropped about 30%.โ€

D
David K.
Pasadena, CA ยท Nov 2025

โ€œWe were skeptical about a heat pump for heating in the winter but LC explained the technology clearly. After one winter season, our home stays warmer than it ever did with the old furnace, and it's quieter too.โ€

B
Brian Y.
Pasadena, CA ยท Feb 2026

โ€œAfter the Eaton Fire, our ducts smelled like smoke. LC did a full cleaning โ€” negative air pressure, rotary brushes, the works. Air quality in our home is completely different now. They were sensitive to what our neighborhood went through.โ€

M
Mark D.
Highland Park, CA ยท Mar 2025
Read all 300+ Google reviews โ†’

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