Fast, Reliable AC Repair & Installation Across Calabasas
AC repair in Calabasas typically runs $175–$765, and most calls are completed same day. Installation of a new system for the large-footprint homes common here generally falls between $4,130–$8,850 depending on zoning and ductwork condition.
We’re Northstar Heating & Air, and Daniel Okafor personally handles the AC work that comes through Calabasas. After a decade in this business, we know the 91302 hills and the 91372 valley floor well enough to spot the difference before we even pull up. That canyon-to-valley temperature swing, the ash and dust that collect on condensers after Santa Ana events, the aging R-22 systems still running in The Oaks and Calabasas Park — these aren’t abstract concepts for us when it comes to Air Quality & Ventilation — Calabasas. They’re the conditions we troubleshoot against every summer. If your system’s blowing warm, cycling erratically, or not running at all, call us at (855) 600-3322. Daniel shows up, diagnoses it, and fixes it.
Why Northstar Heating & Air San Francisco Is Calabasas’s Preferred AC Repair & Installation Company
Our 4.9-star rating across 357 verified reviews didn’t come from generic service calls. It came from showing up when we said we would, explaining what we found in plain language, and standing behind the repair. Calabasas customers specifically mention Daniel’s willingness to walk them through why their system failed and what prevents it next time.
Response time to Calabasas averages under 90 minutes for our Emergency & Commercial HVAC in Calabasas. We’re familiar with the gate codes for communities along Park Sorrento, the access constraints on hillside properties above Mulholland, and the parking logistics at commercial plazas near Calabasas Road. That local fluency means less time figuring out how to reach you and more time fixing your AC.
The split housing stock here — post-Woolsey rebuilds with Title 24 heat pump systems alongside 1990s tract homes with original split systems — demands a technician who understands both eras of equipment. Daniel is certified on 9 major brands, from Carrier and Trane to Daikin and Goodman, so there’s no “we’ll have to refer that out” when he arrives.
Our AC Repair & Installation Services in Calabasas
AC Repair
Calabasas’s thermal bowl geography creates genuine stress on air conditioning systems. When Santa Ana winds push temperatures past 100°F and humidity drops into single digits, refrigerant pressures spike and capacitors fail at accelerated rates. We see this pattern every fall, especially in canyon-adjacent properties where ash and fine particulate clog condenser coils within hours. Our AC Repair & Installation team carries capacitors, contactors, and refrigerant for same-day resolution of these pressure-related failures. A typical repair in Calabasas runs $175–$765.

AC Installation
New system installation in Calabasas requires honest load calculation, not rule-of-thumb sizing. The 3,000–6,000+ square foot homes in gated communities like The Oaks routinely need multi-zone configurations with variable-speed equipment to handle long duct runs and attic air handlers that bake in unconditioned space. Post-Woolsey rebuilds often need systems integrated with existing heat pump infrastructure. Installation pricing starts at $4,130 and ranges to $8,850 for complex multi-zone replacements with duct modifications.

AC Replacement
Many Calabasas homes built between 1985 and 2005 still operate original R-22 systems or early R-410A units approaching end of life. Replacement timing matters here: running a failing system through a Santa Ana heat event risks compressor seizure, which turns a $175–$765 repair into a full replacement. We assess remaining refrigerant integrity, coil condition, and duct leakage before recommending repair versus replacement. When replacement is the smarter investment, we handle permitting and coordinate with your HOA if required.

Refrigerant Recharge
Low refrigerant in Calabasas rarely means simply “topping off.” The temperature swings between cool marine mornings and scorching Santa Ana afternoons cause copper lines to expand and contract aggressively, particularly in homes with attic runs or exterior line sets on south-facing walls. We leak-test with electronic detectors and nitrogen pressure testing, then repair the source before recharging. Recharge costs fall within our standard $175–$765 repair range depending on refrigerant type and leak severity.

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.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Calabasas
We maintain direct experience with 9 major HVAC brands — Carrier, Trane, Lennox in Calabasas, Goodman, Rheem, York, Daikin, Bryant, and American Standard — which means Calabasas customers don’t get passed off when their equipment isn’t the one brand a technician happens to know. Daniel stocks common capacitors, contactors, and control boards for Trane, Lennox, Goodman, and Rheem systems specifically, the brands we encounter most frequently in Calabasas’s 1990s–2000s housing stock. For newer heat pump installations in post-Woolsey rebuilds, we source Daikin and Bryant components with 24–48 hour turnaround. No referral runarounds, no waiting weeks for a “specialist” who never calls back.
Common AC Repair & Installation Problems We See in Calabasas Homes
- Post-Santa Ana coil fouling on hillside properties. Condenser units in the 91302 canyon zones collect ash, dust, and organic debris during fall wind events. This restricts airflow and drives head pressure to lockout thresholds. We clean coils and check refrigerant levels as part of every seasonal tune-up.
- Capacitor failure in unconditioned attics. Calabasas Park and The Oaks homes often place air handlers in attic spaces that exceed 140°F in summer. Capacitors rated for standard temperatures degrade in 2–3 years instead of 8–10. We upgrade to high-temperature components where appropriate.
- Refrigerant leaks from thermal cycling. The daily temperature swing between 65°F marine mornings and 100°F+ Santa Ana afternoons stresses flare fittings and copper joints. We see this most in line sets with multiple bends or homes where original installers took shortcuts on support spacing.
- Undersized systems in expanded homes. Original 3-ton systems in 1980s Calabasas tract homes struggle after owners add square footage without upgrading HVAC capacity. We perform Manual J load calculations and recommend right-sized equipment, not just the next size up.
Pricing for AC Repair & Installation in Calabasas, CA
We’re straightforward about numbers because surprise invoices are how HVAC companies lose trust.
| Service | Typical Range in Calabasas |
|---|---|
| AC Repair (diagnostic, parts, labor) | $175–$765 |
| AC Installation (new system, standard home) | $4,130–$8,850 |
| Seasonal Tune-Up | $95–$235 |
| Refrigerant Recharge (with leak repair) | $175–$765 |
What moves you within these ranges? System age and refrigerant type matter: R-22 repairs cost more due to phased-out supply. Ductwork condition matters: homes in Calabasas with original flex duct in hot attics often need replacement sections. Zoning complexity matters: a single-zone replacement at a condo near Calabasas Road runs very differently than a four-zone system in The Oaks. We inspect, explain what we found, and quote before any work begins. Estimates are free. Call (855) 600-3322 to schedule.
We Also Serve Cities Near Calabasas
Our service radius covers the full western San Fernando Valley and adjacent canyon communities. We regularly run calls to Woodland Hills for commercial HVAC at office parks along Ventura Boulevard, Las Flores for hillside residential systems, Topanga where off-grid and solar-integrated cooling setups need specialized attention, and Canoga Park for both residential repairs and small-business installations. We also handle Heating & Furnace in Calabasas for the brief but genuine cold snaps that hit these same hillside homes each winter. And for properties moving toward electrification or adding accessory dwelling units, we install and service Heat Pump & Mini Split in Calabasas — increasingly relevant given Title 24 requirements on new construction.
Serving Calabasas, CA — Our Local Coverage Area
We’re based in the Calabasas 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 — AC Repair & Installation in Calabasas
We typically arrive within 90 minutes for emergency calls in Calabasas, including gated communities like The Oaks and hillside properties above Mulholland Highway. Daniel carries diagnostic tools and common replacement parts for the brands most prevalent here, so most emergency repairs finish in a single visit. Call (855) 600-3322 — we don’t put you in a queue behind dispatchers.
Yes. We service the full 91302 and 91372 zip codes, from the valley-floor homes near Calabasas High School to the canyon properties in the Mulholland corridor. Gate codes for The Oaks, Calabasas Park, and other communities are already in our system for repeat access, and we’re familiar with HOA notification requirements for work visible from common areas.
Yes. Emergency HVAC availability includes weekends and holidays because Santa Ana heat events don’t follow business hours. We’ve responded to compressor failures on Thanksgiving weekend and capacitor blowouts on July 4th. The same 90-minute response target applies. Call (855) 600-3322 anytime — the phone rings to Daniel directly, not a call center.
Our pricing is consistent across our service area: $175–$765 for typical repairs regardless of city. What varies is the job complexity, not the zip code. Calabasas homes do tend toward larger square footage and more complex zoning, which can push installation costs toward the higher end of our $4,130–$8,850 range compared to smaller valley homes. We quote exact pricing after inspection, not ballpark guesses based on your address.
We provide a 10-year parts warranty and 2-year labor warranty on new system installations, with extended labor coverage available. This applies to all Calabasas installations, including post-Woolsey rebuilds requiring Title 24-compliant heat pump systems. Warranty claims are handled directly through Daniel — no third-party warranty company to navigate, no finger-pointing between installer and manufacturer. Call (855) 600-3322 with any warranty concern and we resolve it.
Written by Daniel Okafor, Owner at Northstar Heating & Air, serving Calabasas since 2014.