Mitsubishi in San Bruno
Mitsubishi Electric Diamond Contractor since October 2026. We install Mitsubishi Electric ductless systems and continue to repair and service other mini-split brands.
As a Mitsubishi Electric Diamond Contractor, we register your M-Series or P-Series system for the Mitsubishi Electric 12-year parts and 12-year compressor limited warranty (the HM, WR, HX and WX wall-mounted series top out at 10 years). We register all indoor and outdoor units within 90 days of installation. This coverage applies to a single-family home while the original owner continues to live there and is not transferable. Our standard workmanship warranty is 2 years.
Optional extended labor coverage through JB Warranties is available for up to 12 years under a separate purchased plan. It is not included automatically with the manufacturer warranty.
Financing available on approved credit.
What our Diamond Contractor status means for your home →
Mitsubishi ductless questions: cost per room, noise, the free assessment →
Mitsubishi options for your home
Start with the space you want to heat and cool, or compare equipment layouts.
- System families and ratings
- Controller compatibility
- Replacing a furnace and AC
- Finished garage
- Detached ADU, studio or shed office
- Refinished basement
- Indoor unit styles
- intelli-HEAT with a gas furnace
San Bruno's housing stock runs heavy on 1950s and 60s tract homes climbing the hills toward Skyline, Rollingwood and Crestmoor among them, most without ductwork and many still on their original gas wall furnace. Fog off the coast keeps summers mild enough that these houses got by without cooling for decades, but enough warm, inland-leaning days get through now that homeowners are adding it, usually with a Mitsubishi single-zone or small multi-zone system rather than tearing into a house with no ducts to run new ones through.
The other common call is above-garage additions and converted rooms, popular on San Bruno's tighter lots where building up is the only way to add square footage. A single Mitsubishi head handles one of these rooms on its own thermostat, sized to that space instead of forcing the main system to reach a room it was never designed to condition.
We're owner-operated as part of the ADRIUM Service Solutions family, based in San Ramon, CSLB #1136642, EPA Section 608 Universal certified. The diagnostic visit is $99, credited toward the repair, and you'll have a written quote in hand before we start. Call (925) 999-4095, seven days a week.
Mitsubishi work we do in San Bruno
Single-zone additions above garages and converted rooms. San Bruno's tight lots push a lot of square footage into above-garage additions and converted bonus rooms. A single Mitsubishi head sized to that specific space handles it on its own thermostat instead of extending ductwork the main system was never built to reach.
Condensate pump failures on heads without a gravity drain. Wall-mounted heads installed where there's no clean path to daylight rely on a small condensate pump to lift drainage out. Those pumps fail quietly, and the first sign is water staining on the wall below the head. We replace the pump and check the float switch so it shuts the unit off before it happens again.
Sticking electronic expansion valves. When one zone on a multi-head system won't hit its setpoint while the others run fine, the EEV that meters refrigerant into that head is a common cause. We test it under load rather than guessing, since replacing the wrong part on a multi-zone system means opening the line set twice.
Factory-trained on Mitsubishi
Mitsubishi in San Bruno: common questions
How do you schedule visits to San Bruno?
Can you add cooling to just the room above my garage?
Will an outdoor Mitsubishi unit add to the noise near the flight path?
What warranty comes with a Mitsubishi Electric installation?
Nearby and related
Mitsubishi near San Bruno: South San Francisco · Millbrae · Pacifica .
Other brands we service in San Bruno: Ameristar · Bosch · Comfort-Aire · Friedrich · LG · Maytag · MRCOOL · Samsung · Amana · American Standard · Bryant · Carrier · Coleman · Cooper & Hunter · Daikin · Ducane · Fujitsu · Goodman · Gree · Heil · Lennox · Payne · Rheem · Ruud · Tempstar · Trane · York .
See the Mitsubishi overview, our HVAC installation in San Bruno, or the San Bruno service area.
Mitsubishi in San Bruno
Repairs start with a $99 diagnostic, credited toward the fix. Replacing a system? The on-site assessment visit is free. Same-day written findings either way.
Bay Area · 7am–7pm · 7 days · no overtime charges