HVAC Services in Hillsborough, CA
PULSE HVAC provides scheduled HVAC appointments in Hillsborough, San Mateo County — heat pump installation, ductless mini-split systems, AC, and indoor air quality. Dispatched from our Carmichael headquarters with batched Hillsborough routes and zero trip fees. Free in-person estimates.
HVAC Services in Hillsborough
Heat Pump & Mini-Split
Working in Hillsborough
- Housing stock
- Hillsborough is large estates on multi-acre lots, much of it pre-war and heavily remodelled since. Homes this size rarely work on a single system — we design in zones, and equipment often sits a long way from the rooms it serves.
- Permits
- HVAC permits run through Town of Hillsborough Building Department, with Title-24 documentation and HERS verification where required — we handle the paperwork.
- Electricity & clean energy
- Peninsula Clean Energy
- Heat-pump rebates
- Hillsborough homes on Peninsula Clean Energy use the same Home Upgrade Rebates as the rest of San Mateo County — heat-pump HVAC replacing gas, heat-pump water heaters, CARE/FERA adders — reserved through PCE rather than a regional IOU program. BayREN's appliance rebates ended in 2024; we put only live PCE amounts in writing at the estimate.
A Hillsborough estate is not a larger ranch house. Lower North Hillsborough, Upper North Hillsborough, Tobin Clark, Country Club Manor, and Carolands sit on multi-acre lots, much of it pre-war and heavily remodelled since, and homes this size almost never run on a single plant. The engineering problem is several systems, long line-set and duct runs, and outdoor equipment that has to disappear into landscaping. PULSE HVAC books Hillsborough 1–3 business days out from Carmichael (about 1 hour 55 minutes), batched with the rest of the Peninsula, with a firm two-hour window, free in-person estimates, and zero trip fees.
One house, several systems
A 6,000-square-foot remodel with a guest wing, a pool house, and a main building is three load calculations, not one oversized condenser. We split by use and by solar exposure — west glass in the main house is not the same job as a shaded guest cottage — and we refuse the single-thermostat fantasy that leaves a far bedroom dead. Variable-capacity heat pumps, genuine zoning, and controls that treat the property as a campus: that is the brief. C-20 work at this scale is design before it is installation.
Long runs on multi-acre lots
Equipment often sits a long way from the rooms it serves. Line-set length, voltage drop, and condensate lift show up on Hillsborough jobs in a way they never do on a 50-foot tract side yard. Screening and setbacks matter; the Town notices outdoor units that were dropped in a sightline. We walk the lot as part of the free estimate, because a plan-view of Carolands does not tell you where a pad can legally and quietly live.
Town of Hillsborough paper trail
Permits go through the Town of Hillsborough Building Department. Multi-system houses often mean multiple mechanical (and electrical) filings; we handle the package, plus Title-24 documentation and HERS verification where each system requires it. Peninsula Clean Energy Home Upgrade Rebates apply per qualifying heat-pump HVAC swap off gas, and to heat-pump water heaters, with CARE/FERA adders; we run the Rebate Finder across the property. BayREN's appliance rebates ended in 2024, TECH is waitlisted, and 25C expired after 2025.
If a whole-house plant is down, call (916) 850-2221 first. We will be honest about whether the next Carmichael-origin route reaches you in time. Same-day service is not something we advertise at this distance.
HVAC FAQ — Hillsborough
Estate work in Hillsborough is booked, not dispatched on demand. Typical lead time is 1–3 business days from our Carmichael base (about 1 hour 55 minutes), on a batched Peninsula route, with a firm two-hour window and no same-day pledge. If a whole-house system is down, call (916) 850-2221 before anything else — we will tell you if the next loop can take it or if a closer crew should.
Hillsborough is its own town, and the Town of Hillsborough Building Department issues the mechanical permit. PULSE HVAC carries an active CSLB C-20 that is valid there. Multi-system houses often mean more than one mechanical permit plus electrical; we file the package, including Title-24 documentation and HERS verification where each system requires it.
PCE is the CCA over PG&E in Hillsborough. Home Upgrade Rebates cover gas-to-heat-pump HVAC and heat-pump water heaters; CARE/FERA adders apply if the household qualifies; the Rebate Finder is how we confirm stacking across multiple systems on one property. BayREN appliance rebates ended in 2024, TECH Clean California is waitlisted, and 25C expired after 2025 — none of that is live money on a Hillsborough estimate.
Large remodelled estates need multi-system heat-pump design, not a single oversized box and a hope. That is the work we drive 1 hour 55 minutes from Carmichael to do. Trip fees are zero, estimates are free and in person (a Carolands floor plan does not fit on a phone screen), and we batch the Peninsula rather than pretend we live next door. A true emergency is a conversation about who can arrive first.
Multi-system heat-pump replacements, zoned ducted systems, ductless heads in wings that were never on the original plant, indoor air quality, and smart controls that actually talk across those systems. We service existing AC and heating plants on the same scheduled model. Same-day emergency repair is not a Hillsborough offering; 1–3 business days from Carmichael is.
Line-set length, screening, and the number of systems dominate the number — not a per-ton catalog. Hillsborough estimates are free, on site, with no trip charge. Every quote is firm and itemized; financing is available on larger replacements. PCE Home Upgrade amounts (and CARE/FERA if they apply) are written onto that page so you see net cost across the whole property, not one condenser.
Ready to Stay Comfortable?
Bay Area visits are scheduled 1–3 business days out from Carmichael — free estimates on all repairs and installs.