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.
HVAC Company in Altadena, CA
Meadowsweet Heating & Air handles the full range of heating and cooling work Altadena homes actually need, from urgent AC repair during a Santa Ana heat spike to complete system installation in a post-Eaton Fire rebuild. The homes here sit between 1,400 and 2,000 feet against the San Gabriels, so they see colder winter nights and stronger smoke infiltration than Pasadena just two miles downhill. That changes what equipment makes sense, how systems get sized, and what a repair call really involves. Call (747) 966-3037 for a free estimate, and we’ll give you a written price before any work starts.
Our team is part of the Cedarwell family of HVAC companies, founded in 2004 and built around the Cedarwell Care Promise. For Altadena families, that means a background-checked, uniformed crew in your home, shoe covers and drop cloths down before the first tool comes out, and a photo of the clean-up before we leave.
Why Altadena Homes Are Different
Altadena’s housing stock was shaped by decades of craftsman bungalows and post-war ranches, many of them running on original wall furnaces or single-zone ductwork that never really matched the foothill elevation. The January 2025 Eaton Fire destroyed thousands of homes in the community’s core, and the rebuild wave that followed is unlike anything in neighboring Pasadena or Arcadia. Virtually every new structure requires a full HVAC installation under current California Title 24 energy codes, which means all-electric heat pump systems have become the default rather than the exception on rebuild sites.
The climate does its own work here too. Winter temperatures regularly drop into the low 30s, and light snow falls often enough to make heating a real concern, not a backup system. Santa Ana winds funnel through the Eaton Canyon corridor directly above the community and push fire-season smoke hard into homes, which has made high-MERV and HEPA filtration retrofits one of the most common requests we hear from families with kids, allergies, or older relatives in the house.
One more thing worth knowing: because Altadena is unincorporated Los Angeles County rather than an incorporated city, all HVAC permits run through LA County Building & Safety, not a municipal department. The post-fire rebuild surge has created real permit and inspection backlogs at the County level. Contractors working in Pasadena or Sierra Madre don’t face that same queue, and it’s part of why scheduling here takes extra care and honest communication about timelines.
Our Main Altadena Services
Most calls we receive from Altadena homeowners fall into two categories: a system that quit working and needs repair now, and a full replacement or new-construction install that needs to be done right the first time. Here’s what each looks like in this community.
AC Repair in Altadena
When a compressor fails or a system short-cycles during a heat wave, the house heats up fast at this elevation, especially in older bungalows with minimal insulation. Our technicians arrive ready to diagnose the issue, explain what they found in plain language, and hand you a written price before any repair work begins. We service nine major equipment brands, including Rheem, York, Daikin, and Bryant, so the parts your system needs are often already on the truck. Learn more on our AC Repair in Altadena page.

Furnace Repair in Altadena
Cold nights in the low 30s make a working furnace a real health and safety matter here, not a comfort preference. The older wall furnaces and undersized central systems common in pre-fire Altadena homes can struggle when temperatures drop, and a failed heat exchanger should never be ignored. We diagnose heating problems quickly, explain the repair in detail, and always provide a written price first. Details are on our Furnace Repair in Altadena page.

AC Installation in Altadena
Post-Eaton Fire rebuilds and older homes with failing equipment both need systems sized correctly for this elevation and the home’s actual square footage. A properly sized installation under Title 24 means better efficiency, lower energy bills, and more even temperatures throughout the house. We handle load calculations, equipment ordering, and scheduling a set install date, with a fixed written price before any equipment order is placed. See AC Installation in Altadena for the full picture.

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.
- 3
A background-checked tech heads outLicensed & insured, dispatched right away.
- 4
You approve before work beginsNothing starts until you say go.
Brands We Service in Altadena
We work on Rheem, York, Daikin, and Bryant equipment, among others, and we stock common replacement parts locally so repair calls don’t stall waiting on shipments. If your system carries a brand you don’t see listed, call us anyway, we service nine major manufacturers and can usually tell you over the phone whether we’re a fit. See our brands for the full list.
Pricing for HVAC Company in Altadena, CA
| Service | Typical range in Altadena |
|---|---|
| AC Repair | $150-$650 |
| Furnace Repair | $150-$700 |
| AC Installation | $3,500-$7,500 |
| Tune-Up | $80-$200 |
What pushes a repair toward the higher end in Altadena is usually parts availability on older pre-fire equipment, access challenges in homes built into the foothill slope, or the need to pull a County permit when a repair uncovers a larger issue. What doesn’t change is our pricing method: you get a written price before any work starts, on every visit, every time. No surprise charges, no pressure to add work you didn’t ask for.
Neighborhoods We Serve in Altadena
We work across the full community, from homes near the Eaton Canyon corridor up against the mountains to the flatter streets closer to the Pasadena line. Response times vary by season and County permit scheduling, but a live person answers our phones 24/7 and can give you a straight answer on timing when you call.
- North Altadena
- Central Altadena
- The Meadows
- Altadena’s canyon-adjacent streets
- The PresidentStreets neighborhood
Service Area – Cities Near Altadena
Our Altadena crews stay close to home, and we also serve families in Pasadena, MD, San Marino, CA, Sierra Madre, CA, and South Pasadena, FL. If you’re not sure whether we cover your street, call (747) 966-3037 and ask. A live person will pick up and tell you straight.
Serving Altadena, CA - Our Local Coverage Area
We’re based in the Altadena 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 HVAC Company in Altadena
We answer every call live, 24/7, and can usually give you an arrival window during that first conversation. Repair calls are prioritized by urgency, so a no-heat situation in winter or no-cooling situation during a heat wave moves to the front. Call (747) 966-3037 for today’s timing.
Yes. When a repair or installation requires a permit through LA County Building & Safety, we handle the paperwork and scheduling as part of the job. The post-Eaton Fire rebuild has created longer inspection queues at the County level, and we’ll tell you honestly what that means for your timeline before you sign anything.
Every crew member is background-checked and uniformed, and they follow the C.A.R.E. values code: clean up like it’s their own home, ask before moving anything, respect quiet hours, and explain the price before the work. Shoe covers and drop cloths go down before any equipment comes inside, and we send a photo of the clean-up before the crew leaves.
What happens when you call
- 1A real person answersNo phone trees - talk to a local hvac pro.
- 2You get an upfront price rangeHonest numbers before anyone is dispatched. No surprises.
- 3We come out and measureLicensed & insured, at a time that suits you - the visit and the quote are both free.
- 4You get the price in writingLine-itemed, yours to keep, and nothing starts until you say go.
What Altadena Customers Say
"Comfortable in every room now, and not a trace that a crew had been here. Booties, drop cloths, the works. They even wiped down the thermostat they'd handled. Really considerate."
- Lamar Finch"New system install. They protected the hallway floor all the way to the attic and vacuumed after. Worked quietly around my work calls. Not a trace left behind."
- Rosalind Okeke"AC repair in July. The tech laid a mat down by the indoor unit and wore booties through the house. Fixed it fast and left zero mess. Quiet and kind, good with our nervous dog too."
- Delia Frost







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