Send the problem and the access details
Tell us the property city, equipment type and how many systems are affected. Include the occupant's availability, access restrictions and who can approve repairs. For a showing or turnover, give us the actual deadline so we can discuss scheduling before promising a visit.
We work on the heating and cooling equipment serving homes and small commercial spaces. For an unfamiliar commercial system, describe the equipment and its location when you call so we can confirm the right visit.
Separate the diagnosis from the work order
A repair diagnostic is $99 per visit, credited toward the repair; additional units checked in the same visit don't add another diagnostic charge. We provide written findings the same day. The repair estimate explains what failed and the proposed work for approval.
If replacement is the practical next step, the HVAC installation assessment is free. We compare the required work with the condition of the rest of the system. Equipment access, duct condition and electrical requirements belong in that comparison.
Agree on the person authorizing work before the visit. We confirm parts availability and the repair schedule after approval, and tell you about a schedule change as soon as we learn of it. Account billing arrangements are agreed in writing.
Two visits from our case files
Before a property showing in Walnut Creek, a thermostat kept losing its settings. We diagnosed the thermostat and replaced it, then checked stable HVAC operation. The equipment itself did not need replacing.

At The Athenian School in Danville, we installed ductless systems while summer programs were running. Access and work timing had to fit an occupied campus. That is the kind of information we ask for when planning work in a building that stays in use.
Use the right service path
- AC repair or furnace repair for a current fault.
- Heat pump repair and ductless repair for systems providing both heating and cooling.
- System selection and replacement when a new layout or equipment is being considered.
- Scheduled maintenance at $290 per visit, twice per year. Tell us the equipment count so the proposed coverage is clear.
Our brand directory helps identify the equipment; the city directory shows local service pages. Planning tools are in calculators, but a building assessment determines the installation design.
Bay Area HVAC Service is the HVAC brand of ADRIUM Service Solutions. For an appliance issue on the same inspection list, describe it separately when booking so the office can confirm service.