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Care for every
season

From gentle tune-ups to full system installations — calm, careful, and never rushed.

ZEPHYR technician diagnosing an air conditioner

AC Repair

Same-day diagnostics and repair for every make and model. Most fixes are completed on the first visit — measured, not guessed.

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    Full system readoutRefrigerant pressure, temperature differential, airflow.
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    No fix, no feeIf we can't find the problem, the visit is on us.

Heating & Furnaces

Quiet, efficient warmth through every cold snap — annual tune-ups, combustion analysis, and full system replacements.

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    All major brandsCarrier, Trane, Lennox, Rheem, Mitsubishi, Daikin.
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    Safety verifiedHeat-exchanger inspection and gas-pressure checks.
Modern heating system being serviced
New climate system installation

New Installations

Systems sized to your actual space with a Manual J load calculation — never a ballpark guess. Duct design, install, and commissioning included.

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    10-year warrantyParts and labor on every full installation.
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    Ductless optionsMini-splits for rooms and additions.

Maintenance Plans

Two gentle tune-ups a year — cooling and heating season — with filter changes, coil cleaning, refrigerant check, and electrical inspection.

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    Save 18%Average energy-bill savings for plan clients.
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    73% fewer emergenciesPreventive care that prevents surprises.
Technician performing a preventive maintenance tune-up
Indoor air quality testing and filtration

Indoor Air Quality

Purifiers, humidifiers, dehumidifiers, and ventilation. We test your air — particulate count, humidity, CO₂ — then recommend the right filtration for your space.

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    Breathe cleanerMeasured air quality, not guesswork.
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    Whole-home optionsFrom one room to your entire building.

24/7 comfort line

AC failure in a heatwave, furnace out before sunrise — we answer day and night, with an average response of about two hours.

Where we serve

Core Metro

Downtown, North Beach, Mission, SoMa, Pacific Heights. Average response: about 60 minutes.

Fastest

Inner Districts

Sunset, Richmond, Bernal Heights, Noe Valley, Marina. Average response: about 90 minutes.

Same-day

Extended Area

Oakland, Berkeley, Daly City, San Mateo. Same-day service for most calls — call to confirm.

Call first

Book your service visit

Same-week appointments. Licensed, insured, guaranteed.