Altadena homes and their air conditioning
Half of Altadena's homes were built before about 1945, so many houses got central air added later. That often means long duct runs and outdoor units squeezed into side yards.
The center of Altadena sits at about 1,355 feet. Hot summer afternoons are what an air conditioner here has to be sized for.
About 9 in 10 Altadena homes (87.5%) are single-family houses (U.S. Census, 2019–2023), so the usual setup is a split system with the condenser in a side or back yard.
About 4 in 10 Altadena homes (38.4%) were built before 1940, and almost 8 in 10 (78.2%) before 1960. These Census figures (2019–2023) are from before the January 2025 Eaton Fire.
We've taken at least 10 AC and HVAC repair calls in Altadena so far.
We cover all of Altadena, ZIP codes 91001, 91104. ZIP 91104 covers parts of both Altadena and Pasadena.
Altadena isn't its own city. It's unincorporated Los Angeles County, so HVAC permits come from LA County Public Works, Building and Safety.
What we check first
We test before we replace anything and show you what failed. The usual causes are on our AC repair page.
In older Altadena homes we also look hard at the duct runs, since long, undersized or leaky ducts are a common cause of weak cooling.
$69 diagnostic, credited toward the work if you go ahead, and a one-year labor warranty on what we fix.
The people behind the work
Shlomi Ohayon holds our C-20 license (#1119892). David Bentora answers most of our calls at 818-277-5056. See our Google reviews. About us.
Other services and nearby cities
Also in Altadena: Furnace & Heater Repair in Altadena.
AC Repair in other cities: Pasadena · Glendale · Alhambra · Arcadia · Temple City.
All about AC Repair · Everything we do in Altadena
Schedule service
Fill in the form or call. We are on the phones 6am–10pm.
818-277-5056Licensed #1119892 · Veteran-owned · Pasadena & Reseda