Same-DayDiagnosis
ResidentialCommercial
California Lic.#1091355
Same-Day DiagnosisResidential • CommercialCalifornia Lic. #1091355
We install 95%+ AFUE condensing furnaces with ECM blowers, two-stage and modulating equipment.
We evaluate ductwork, gas, venting, and electrical before selecting and installing replacement equipment.
Our team troubleshoots ignition, gas valve, inducer, pressure switch, and limit-circuit faults.
Annual service covers combustion analysis, filter, blower, and safety-circuit verification.
ABC Service treats furnace work as combustion engineering. Every install includes static-pressure measurement, gas pressure verification under load, combustion analysis, and CO testing — the work that determines whether a furnace actually delivers its rated AFUE.
We install 95%+ AFUE condensing furnaces with ECM blowers — two-stage and modulating equipment from Trane, Carrier, Bryant, and Lennox. Selection is matched to load, duct capacity, and the rest of the system, not picked from a catalog.
The airflow side of the system is where most no-heat and short-cycle complaints actually live. We troubleshoot ignition, gas valve, inducer, pressure-switch, and limit-circuit faults, then repair returns, seal duct leakage, and match blower configuration to the actual home.
Annual service covers combustion analysis, filter replacement, blower verification, and safety-circuit testing. Most premature furnace failures trace back to airflow or combustion issues — both preventable with consistent service.
Condensing furnaces deliver 95–98% AFUE — but only when venting, gas pressure, and airflow are correct.
Combustion equipment requires combustion analysis. We measure CO and O₂ on every commissioned system.
ECM blowers and proper duct design eliminate the loud, full-blast cycles of older equipment.
Most premature furnace failures trace back to airflow and combustion — both preventable with a proper install.
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We assess existing equipment, loads, venting, electrical, and site constraints on-site.
We size and specify equipment to the building — with options and trade-offs explained plainly.
A dedicated lead tech handles a permitted, clean install with finish-grade workmanship.
We start up, balance, and verify the system against design intent with calibrated instruments.
We walk you through operation, file rebates, and stand behind the system long-term.
Licensed C-10 Electrical, C-20 HVAC, and C-36 Plumbing — one team, one schedule, one point of accountability.
Fully licensed contractor, bonded, and carrying general liability and workers' comp insurance.
Urgent service and safety calls prioritized with same-day diagnosis when scheduling allows.
Serving homeowners, property managers, businesses, and commercial facilities throughout the Bay Area.
Flexible financing options may be available for qualified customers through GoGreen Financing — HVAC, heat pumps, boilers, water heaters, electrical upgrades, and EV chargers.
