01
AC Repair & Diagnostic
Focused diagnostics for no‑cool, weak airflow, short cycling and inconsistent temperatures.
- Root-cause testing
- Upfront repair quote
- Common parts stocked
Starting from $70
Where to start
Which Job Are You Booking?
Pick the closest match to see where pricing starts. The final figure depends on your equipment, access and what the site visit turns up.
Coverage
What Emergency AC Repair Covers
The Bay Area doesn't get many extreme‑heat days, which is exactly why an AC failure during one hits hard — homes here often aren't built to handle heat passively. Our emergency line prioritizes no‑cool calls during heat advisories.
We confirm the after‑hours rate with you before dispatching a technician, so there's no surprise on the invoice.
Residential
- 01No-cool failures during heat advisories
- 02Electrical, airflow and refrigerant faults
- 03Clear repair options before work starts
Commercial
- 01Priority response for occupied properties
- 02Rooftop and packaged AC diagnostics
- 03Scheduling coordinated with site contacts
Certifications and credentials
- Mitsubishi Electric TraneCITY MULTI and M- and P-Series Essentials certified
- TECH Clean CaliforniaHeat pump water heater programme certificate
- CSLB #1104111C20 licensed, bonded and insured contractor
- 3-Year Labor WarrantyLabor warranty on installations, on top of the equipment warranty
Rating A+ · accredited business
Every document behind these marks is published in full on About & Licenses.
Brands we service
Mitsubishi Electric
Mitsubishi Electric
Recent work
Recent Work on Jobs Like This
ResidentialHillsborough
Radiant Floor Heating Repair
Diagnose and repair a zone valve failure in an in‑floor radiant heating system.
Radiant zone valve & manifold controls · 1 day
Commercial
HydroTherm KN‑6 Commercial Boiler
A documented commercial boiler installation with hydronic piping, controls and circulator connections.
HydroTherm KN-6 condensing boiler
CommercialSan Francisco
Restaurant Rooftop Unit Replacement
Replace a failed rooftop package unit for an occupied restaurant with minimal service disruption.
Commercial packaged rooftop unit · 2 days, scheduled before opening hours
Frequently Asked Questions
Same‑day in most of our coverage area, faster during declared heat advisories when we prioritize no‑cool calls.
If temperatures are mild, a standard next‑day appointment is usually more cost‑effective. We recommend emergency service when there's a vulnerable household member or a genuine heat advisory in effect.
Capacitor failure and refrigerant issues spike during heat waves because the system runs longer and harder than usual, stressing already‑marginal components.
There's a standard after‑hours rate, confirmed with you before we dispatch — never a surprise on the bill.
Check that the outdoor unit has power and the breaker hasn't tripped, replace the air filter if it's visibly clogged, and make sure the thermostat is set to cool with a temperature below room temperature. Don't attempt refrigerant or electrical repairs yourself.
Yes, with priority dispatch available for restaurants, medical offices, server rooms and other business‑critical spaces — mention your property type when you call.
Current offers
Save on This Service
Limited time
$70 Service Call
Diagnostic service call, currently $70. Standard rate $120.
Free estimate
Request a Free Estimate
Tell us what you need and a technician calls you back the same business day. No obligation, and no charge for the estimate on installation and replacement work.
- Upfront, itemized pricing before any work starts
- Up to 3 years of labor warranty on installations
- Licensed, bonded and insured — documents published
- Two shops: San Francisco and South San Francisco
What happens next
- 01A technician calls back the same business day
- 02We confirm the equipment, access and a visit window
- 03You get an itemized figure before any work starts
Before you send
A photo of the unit or the leak, plus the make and model if you have them, shortens the callback. Gate or parking notes help the tech show up ready.
Monday – Friday 7:00 AM – 8:00 PM. Saturday 8:00 AM – 6:00 PM. Sunday is emergency calls only. California C20, CSLB #1104111 — the license, bond and insurance are on the About page.
Prefer to talk? (415) 742-8999
Keep going
Where Would You Like to Go Next?
Related services
Bay Area coverage
Same crew from two shops. Open a city page for neighborhoods and dispatch.
Need Emergency AC Repair?
Tell us what's going on and we'll help you take the next step. Free estimates on installation and replacement, upfront pricing before any work starts.