The Bay Area's heat pump market is crowded and fluent, which raises the floor and hides the differences. Nearly every contractor from the City to Livermore has hung a ductless head on a Victorian; far fewer size for the microclimate the address actually lives in, trace a line-set route through hundred-year-old plaster before quoting it, or can say which incentive programs survived into 2026 without reaching for a phone. The eight tests below separate the fluent from the familiar, and every one is checkable in a first conversation, before any money moves. The pattern to watch is simple: contractors who pass one tend to pass all eight, because the tests measure a single habit, which is doing the work on your actual house rather than the house the catalog assumes.
Test One: The Load Calculation
The first question is whether the bidder performs a room-by-room load calculation on your house or prices from the nameplate of whatever is being replaced, which in this stock might be a gravity furnace, a wall heater, or nothing. In a market where the same nominal project spans a drafty Haight-Ashbury Edwardian and a tight Pleasanton tract home, the old equipment's size is worse than a rumor, it is frequently absent, and the calculation is the only number with a pedigree. It matters double in a mild climate: an oversized machine never settles into the small steady loads that are this climate's entire heating season. Ask to see a sample report; a contractor who produces one is showing you their habit.
Test Two: The Microclimate Question
This market adds a test most cities never need: which climate is this quote written for? The fog belt of the Sunset and Richmond District, the sunnier wedge of the Mission and Noe Valley, and the inland East Bay of Concord, Pleasanton, and Livermore run genuinely different duties for the same machine, from barely-needs-cooling to cooling-is-half-the-job, per our cold-weather guide. A fluent bidder speaks about the address, not the region: the fog-side salt on the outdoor coil, the inland summer sizing, the block's actual exposure. One who quotes the Outer Sunset and Walnut Creek with the same logic has read neither.
Test Three: The Post-TECH Money Map
The money question is a calendar test wearing a dollar sign, and California's 2026 calendar is unforgiving. TECH Clean California closed to new single-family reservations on November 14, 2025, taking the PG&E heat pump pathway with it; the federal credits ended December 31, 2025; and the live money on a City meter is the CleanPowerSF $1,200 bill credit, per our CleanPowerSF guide, with BayREN Home+ up to $1,000 confirmed before relying on it and the community energy programs serving their own corners of the carve, per our rebates guide. A bidder offering to reserve TECH, or quoting a live PG&E rebate, has failed on the state's own dates. One who names the surviving program, the amount, and the bill-credit mechanics has read their market this year.
Test Four: The Line-Set Route
In the City's older stock, the difference between a clean install and a regretted one is often not the equipment but the route: where the line sets run from the outdoor unit to the heads, through what walls, past what facade. Ask the bidder to trace the route at the site visit and put it in the quote. A fluent installer talks about rear light wells, garage-level runs, and keeping penetrations off the street face; a careless one discovers the hard route on install day and improvises it across your siding. On lots with no side yard, ask where the outdoor unit sits, how it drains, and, in the fog belt, how it is specified against salt air. The answers are cheap now and expensive later.
Test Five: Ducts, Gravity Trunks, and the Ductless Call
Where ducts exist, the test is physical: static pressure measured, returns checked, crawlspace walked rather than assumed. Where the ducts are a gravity furnace's convection trunks, the test is judgment: a modern blower rarely uses those oversized runs well, and the honest evaluation sometimes concludes the ducts are the problem and ductless is the answer. In the Victorian and Edwardian stock the honest answer is often ductless or hybrid from the start, priced as one system, per our installation cost guide. A contractor who forces every house into the system they prefer to install has skipped the diagnosis, and in this housing stock the diagnosis is most of the job.
Test Six: Panel, Permits, and Refrigerant
The quote should name the unglamorous items before signing, not after. The panel: the City's older stock carries 100-amp and smaller services, sometimes with vintage wiring behind them, and the honest bidder opens the panel at the site visit and prices what they find as a written line, $1,500 to $4,000 when work is needed. Permits: pulled by the contractor, stated plainly, never "we can skip the paperwork to save you money," and in this jurisdiction the paperwork is not optional. Refrigerant: a 2026 quote specifies R-454B equipment, and a bidder pushing discounted stock on the old refrigerant is selling the past at a markup.
Test Seven: References From Your Kind of House
References are only as useful as their resemblance to your project. A contractor with a hundred happy customers in Dublin new construction has proven nothing about a Bernal Heights Victorian with a gravity furnace, a Richmond District house with wall heaters and salt wind, or a Berkeley craftsman with knob-era wiring. Ask for two or three references from your project family specifically, and when you call, ask narrow questions: did the line sets run where the quote said, did the credit arrive on the bill as promised, how did the house hold through the gray months, and did the panel work come in at the named price. Narrow questions get honest answers; "were you satisfied" gets politeness.
Test Eight: Commissioning, or How the Crew Leaves
The last test predicts the system's whole life: what happens on the final day. A fluent installer verifies refrigerant charge, measures airflow against the design, confirms low-speed and staging behavior, and hands over documentation, including the rebate filing with a named owner and a stated timeline for the bill credit. A crew that starts the machine, feels warm air, and drives away has skipped the step where specification becomes performance. Ask what the commissioning checklist contains before you sign, because the answer tells you whether one exists.
The Short Version
Eight tests, one habit: a room-by-room load calculation, a quote written for the address's microclimate, the post-TECH money map with CleanPowerSF named and dead programs left dead, a traced line-set route, an honest ducts-versus-ductless diagnosis, named lines for panel and permits with R-454B on the page, references from your kind of house, and a commissioning checklist that exists. TECH closed November 14, 2025; the federal credits ended December 31, 2025; and a bidder who missed those dates has missed more. The contractor who passes is doing the work on your house, and that is the entire specification.
Get Your Free San Francisco Quote
Start your free quote: two minutes, free, no obligation. You will be matched with contractors who calculate before they price, trace the route before they drill, and carry the 2026 program map, from the Castro to Concord.