San Francisco Bay Area · Peninsula
Licensed, owner-operated HVAC contractor serving the Bay Area. The person who quotes your job is the person who does it.
Estimates for new systems are free. Repair and diagnostic visits have a service call fee by zone.
Heating and cooling in one system. In San Mateo County: WestLight Energy rebates and a 0% loan paid on your PG&E bill. No credit check.
Eligible customers, program approval required.
Replace your gas water heater with a heat pump water heater. Up to $3,500 in WestLight rebates in San Mateo County. Hot water the same day.
Repair first, replace only if it makes sense. Repair visit from $49 by zone. If your furnace can’t be repaired, you don’t pay for the visit. San Francisco, Daly City, South San Francisco, Pacifica.
Staying on gas? A new 80% or 90%+ furnace, installed to code, with a 3-year workmanship warranty.
Also: mini-splits, central AC, ductwork, thermostats and zoning, remodels and ADUs, light commercial and rooftop units.
I’m the owner and licensed HVAC contractor behind Mihas HVAC. I grew up where winters hit −31°F (−35°C), so heat was never a luxury to me. It was survival.
Today I bring that mindset to homes on the Peninsula. I take care of your system’s whole life: troubleshooting, repairs, replacements, new installs and maintenance.
I don’t chase volume or sales quotas. Instead, I:
If you want one person who knows your system end to end, we’ll work well together.
I test properly, show you what I find and explain it in plain language. I repair when it’s safe and sensible, and recommend replacement only when it’s the better option.
No pressure, no oversized systems, no hidden costs, no cut corners. I don’t disappear once you’ve paid.
You’ll know what I’m doing, why, and what it costs before I start. Your home is treated like mine, and the workspace is left clean.
Palo Alto
An aging AC replaced with a six-zone Mitsubishi heat pump using low-profile ceiling cassettes. New refrigerant lines, dedicated circuits, sloped condensate drains. Every room now heats and cools on its own.
San Francisco
Two 80% gas furnaces removed and replaced with ducted heat pumps: new air handlers, refrigerant piping, electrical upgrades and condensate drainage. Quieter, more even heat, and cooling the house never had.
San Francisco
Old furnace out, high-efficiency Daikin heat pump in, on the existing ducts. Commissioned in both heating and cooling modes.
San Francisco
Gas unit removed; Rheem 70-gallon heat pump water heater installed with a new electrical circuit and condensate line.
Menlo Park
Gas furnace removed; Mitsubishi heat pump with a new air handler tied into the existing ducts. Duct sizing checked, sloped condensate drains, upgraded circuit. One quiet system now heats and cools.
San Francisco
Properly sized new furnace, upgraded venting, fused disconnect, new plenum insulation and gas valve. Gas pressure and airflow measured and set.
San Francisco
A loud ducted Gree heat pump replaced with a compact Mitsubishi. Layout reworked for airflow and service access.
Commercial
Two unreliable gas furnaces in a commercial building replaced with properly sized high-efficiency models, with minimal downtime. New venting, gas piping corrections, safety controls, airflow balancing.
Commercial
Three independently controlled zones; the outdoor unit wall-mounted in the parking area to save ground space and protect it.
Need a second opinion?
Already have quotes that say “replace everything”? I’ll inspect, test and explain what’s really going on, then walk you through your options: a targeted repair, a full replacement, or planning an upgrade for later. Many homeowners call me before committing to a big install.
I will. Mihas HVAC is owner-operated, so the person who diagnoses and quotes your job is the one who does it.
Yes, for new systems and replacements. Repair and diagnostic visits have a service call fee by zone (see below).
Only when it makes sense. I start with diagnostics. If replacement is the better long-term choice, I’ll show you the numbers, rebates and lifespan, then let you decide.
Sometimes. Often it means “too slow to diagnose.” Let me test it.
Low refrigerant means a leak. Topping off every season costs you money and wears out the equipment. I find the leak and fix the cause.
I price for correct diagnostics, a safe install and long-term reliability: time on site, proper materials, permits where required and careful commissioning. You’ll see exactly what’s included.
For repairs, yes. A photo, short video or model/serial label helps me bring the right parts.
I come back and make it right. My workmanship is under warranty, and you reach me directly, not a call center.
Tell me what you need and I’ll reach out to confirm details and timing. Estimates for new systems are free.
Rather talk first? with just your name and number.
Thanks. I’ll contact you to confirm details and timing. In a hurry? Call (415) 484-8437.
Service call pricing by zone is provided for estimate purposes only and is not guaranteed; zone boundaries are used solely for preliminary pricing and the final service call fee is determined based on the actual travel time to the customer’s location at the time of dispatch, taking current traffic and distance into account. After-hours, weekend, holiday, or priority dispatch surcharges may apply. The service call fee includes travel time and initial diagnostic evaluation and consultation for up to one (1) hour on site (travel time not included in the one-hour limit). The service call represents a minimum charge to which no discounts, promotions, or coupons apply and is due regardless of the scope or outcome of services once a MIHAS HVAC INC technician arrives at the customer’s address, including but not limited to situations where the customer declines service, access to equipment is unavailable, services cannot be performed for any reason (including force majeure), or the customer believes services were not fully rendered. Exception: under the gas furnace repair offer (see /furnace-repair.html), if the furnace cannot be repaired, no service call fee is charged. Any time spent on site beyond one (1) hour during the initial visit will be billed separately at the applicable hourly rate. By requesting service from MIHAS HVAC INC, the customer acknowledges and agrees to these terms.