HVAC Repair in San Lorenzo, CA94580
Arctic Air Heating & Cooling dispatches licensed, insured heating and air conditioning technicians toSan Lorenzo and the 94580 ZIP code 24 hours a day, 7 days a week. Target response time in this service zone: 60-90 minutes.
If your high-efficiency heat pumps and ductless mini-splits has started short cycling, blowing warm air or making a noise it never used to make, you are not alone — San Lorenzo generates some of the highest call volume we handle in California. Inland valleys hit extreme heat while coastal zones stay mild, so system sizing matters more here than raw capacity.
Talk to a live dispatcher in San Lorenzo
Serving 94580 and Alameda County — no phone trees, no callback waiting.
- We test airflow and static pressure, not just refrigerant charge
- Combustion and carbon monoxide testing on every furnace call
- Digital condition report sent to you the same day
- Financing available on qualifying replacements
★★★★★5.0 average · 278 verified reviews
- Licensed & Insured Technicians
- Background-Checked Crews
- Upfront Flat-Rate Pricing
- Same-Day & Next-Day Service
- No Overtime Charges
- All Work Warrantied
The San Lorenzo94580 calls we answer most often
If your system is doing any of the following, it is worth a diagnostic before the fault gets more expensive.
Yellow or orange burner flame instead of steady blue
Outdoor condenser humming but the fan not turning
Dead or bulging run capacitor on the condenser
No cool air, or air that is barely cooler than the room
Refrigerant leak at a flare or coil connection
Squealing or grinding from the blower assembly
Heating and air conditioning service built around San Lorenzo
We treat 94580 as a dedicated service zone. Inland valleys hit extreme heat while coastal zones stay mild, so system sizing matters more here than raw capacity. Because the equipment here works hard for a long season, we lean heavily on catch-it-early diagnostics rather than emergency replacements.
Homes in Alameda County tend to be a mix of older builds with original ductwork and newer infill construction, which means airflow problems show up very differently from one street to the next.
Peak cooling demand here runs May through October. Booking a tune-up in early spring means you are not competing with the whole neighbourhood for a tech in July.
Typical San Lorenzo service pricing
| Service | Typical Range |
|---|---|
| Diagnostic / service call | $96 – $192 |
| Capacitor replacement | $230 – $538 |
| Contactor replacement | $243 – $576 |
| Refrigerant leak repair + recharge | $410 – $1,152 |
| Blower motor replacement | $576 – $1,216 |
| Compressor replacement | $1,792 – $3,712 |
| Hot surface igniter / flame sensor | $205 – $512 |
| Furnace control board | $486 – $1,088 |
| Condensate drain / float switch | $166 – $435 |
| Thermostat install (wired or smart) | $192 – $576 |
| Duct cleaning (whole home) | $486 – $1,152 |
| Full system replacement (installed) | $7,680 – $16,640 |
Market ranges reported for San Lorenzo, CA and the wider Pacific region. Your flat-rate quote is confirmed on site before any work begins.
Services available in 94580
Residential and light commercial, all major brands, all hours.
Air Conditioning Repair in San Lorenzo
Diagnosis and repair for central air conditioners, heat pumps in cooling mode, ductless mini-splits and packaged rooftop units.
Furnace Repair in San Lorenzo
Gas, propane, oil and electric furnace troubleshooting and repair.
HVAC Installation & Replacement in San Lorenzo
Full system replacement and new construction installs with a Manual J load calculation so the equipment is actually sized for your home.
Heat Pump Repair & Service in San Lorenzo
Heat pump diagnosis and repair for both heating and cooling operation, including cold-climate units, defrost board failures, reversing valve problems, auxiliary heat strip faults and refrigerant charge issues.
24/7 Emergency HVAC Repair in San Lorenzo
Around-the-clock response for no-heat in freezing weather, total AC failure during a heat wave, gas smells, carbon monoxide alarms, water flooding from the indoor unit and complete system shutdowns.
Air Duct Cleaning & Sealing in San Lorenzo
Whole-home duct cleaning and aeroseal-style duct sealing to recover lost airflow, reduce dust and lower the load on your equipment.
HVAC Maintenance & Tune-Up in San Lorenzo
Seasonal precision tune-ups that catch failing components before they strand you.
Commercial HVAC Service in San Lorenzo
Service for light commercial and commercial properties including rooftop packaged units, VRF and VRV systems, split systems, make-up air units and building automation controls.
What happens when you call
No forms, no waiting for a callback window. One phone call starts the whole process.
- Step 1: Call the dispatch lineYou reach a live dispatcher, not a recording. They confirm your address, the symptom you are seeing and how urgent it is.
- Step 2: Get matched to the nearest licensed techDispatch routes your job to the closest available licensed technician who already carries the common parts for your equipment.
- Step 3: On-site diagnosis with a flat quoteThe tech tests the system, shows you what failed and gives you a written flat-rate price before any work starts.
- Step 4: Approved repair, same visit when possibleMost repairs are finished on the first visit. If a part has to be ordered you get a firm return window, not a maybe.
Servicing San Lorenzo and Alameda County
Our 94580 coverage zone centres on San Lorenzo and extends to the surrounding communities listed below. Every technician dispatched into this area is licensed, insured and background-checked, and every job carries a workmanship warranty.
What San Lorenzo homeowners say
“AC died during a heat advisory. Dispatch was honest that it would be a few hours, then called me the moment a slot opened.”
— Angela W., verified San Lorenzo customer
“Booked a tune-up and got a written report with photos. First time a company has actually documented anything for me.”
— James O., verified San Lorenzo customer
San Lorenzo94580 HVAC questions, answered
Can you give me a price over the phone?
We can give you realistic ranges — and this page lists the ones homeowners in San Lorenzo see most often — but a firm price needs eyes on the equipment. Any company that quotes a final number without seeing the unit is usually quoting low to get through the door.
Is my carbon monoxide risk something I should worry about?
With any combustion appliance, yes. A cracked heat exchanger can spill carbon monoxide into the living space, and it is odourless. We perform combustion analysis and a CO test on every furnace and boiler call in San Lorenzo, and we recommend a working CO alarm on every level of the home regardless of who services your equipment.
Do you offer maintenance plans?
We do. A two-visit plan in California covers a spring cooling inspection and an autumn heating inspection, priority scheduling during peak weeks, discounted repairs and no diagnostic fee. Members rarely end up on the emergency list.
How much does an HVAC service call cost in 94580?
A diagnostic visit in San Lorenzo typically runs $75 to $150, and that fee is usually applied toward the repair if you approve the work. Repair prices are quoted as a flat rate before we start, so the number you approve is the number you pay regardless of how long the job takes.
What does a new system cost in San Lorenzo?
A complete residential replacement in the 94580 area generally lands between $6,000 and $13,000 installed, depending on capacity, efficiency rating and how much ductwork has to be modified. We always perform a Manual J load calculation first, because an oversized unit costs more to buy and runs worse than a correctly sized one.
Should I repair my system or replace it?
The usual rule of thumb: if the repair costs more than half the price of a replacement and the equipment is over ten years old, replacement generally wins. We will run that comparison with you on site and show you the maths — and if the honest answer is a $180 capacitor rather than a $9,000 system, that is the answer you get.
HVAC service near San Lorenzo, CA
We also cover these California communities with the same 24/7 dispatch line.
Need HVAC help in San Lorenzo 94580?
Emergencies do not keep business hours and neither do we. (866) 548-3173 is answered 24 hours a day, including weekends and holidays.
(866) 548-3173Answered 24 hours a day, 365 days a year