Load calculation and sizing
Equipment is sized to the house, not to the old furnace label. Oversized systems short cycle and cost more.
Replacing a furnace, wall heater or wood stove in Sebastopol? HAXX sizes a heat pump to the house, checks the panel and files the permit SCP rebates need.
Serving downtown and Main Street, The Barlow district, Park Village, the Bodega Avenue corridor, the Laguna de Santa Rosa edge and homes near Ragle Ranch Regional Park and the rest of Sebastopol. Share your address to confirm availability.

A heat pump replaces a furnace and AC with one system for heating and cooling. Good results come from sizing, layout and electrical planning done before equipment is ordered.
Equipment is sized to the house, not to the old furnace label. Oversized systems short cycle and cost more.
Keep existing ducts when they are in good shape, or go ductless where ducts are missing, leaky or impossible to run.
HAXX electricians review the panel and service before the install, so a surprise panel upgrade does not appear mid-project.
Mitsubishi Electric and American Standard systems, among others, matched to the home and budget.
HAXX pulls the mechanical and electrical permits and meets the city inspector.
We point you to the rebates your address qualifies for and provide the equipment documentation programs ask for.
Sonoma Clean Power lists rebates for qualifying heat pumps and hydronic heat pump systems. A finalized City of Sebastopol permit is part of the paperwork, so the install and the file go together.
SCP sets separate minimum SEER2 ratings for ducted, single-zone ductless and multi-zone systems, and excludes dual-fuel setups. HAXX specs equipment that qualifies.
Many west county homes rely on a wood stove. A heat pump can carry the daily load. Sebastopol's code also regulates noncertified wood heaters (SMC 15.70).
Where a home needs heat and hot water, SCP lists a larger rebate for qualifying hydronic heat pump systems. Confirm terms with SCP.
Rated 4.8 across 515+ reviews on Housecall Pro, Google and Facebook. Read more reviews.
“Their technician was professional, honest, and took the time to explain the problem and the repair process clearly. Instead of pushing for an expensive replacement, they repaired our HVAC system and helped us save a significant amount of money. The work was completed carefully, and our air conditioner is now working well.”
“Thorough diagnostics of A/C system, identified and repaired the issue quickly!”
“Service was performed well and on time. Service person was highly skilled and provided easy to understand options to deal with the issue. Price for diagnostics was reasonable and easy to pay online.”
Existing equipment, home layout and what you want to improve.
Sizing, airflow, equipment placement and electrical needs.
Options, exclusions, permit requirements and any eligible incentives.
Confirm equipment, scheduling and handover details with HAXX.
A closer look at recent heating and cooling work by HAXX.

On site during a commercial VAV box repair: access above a suspended ceiling, equipment and the work in progress.
Explore recent projects
Heat pump installation.

Outdoor heat pump installation.

Heat pump air handler installation.

Heat pump air handler service.

Lennox ac installation.

Compressor replacement.

Mitsubishi leak detection.

Leaking coil replacement.
Sonoma Clean Power lists a rebate for qualifying heat pumps, a larger one for hydronic systems and enhanced support for CARE and FERA customers. Apply within SCP's window after the permit is finaled and confirm current amounts.
Yes. HAXX submits through the city's e-permitting Public Portal and meets the Building and Safety inspector.
Yes. Bay Area winters are mild, and correctly sized heat pumps heat comfortably through them. Sizing and duct condition matter more than the brand.
Most single-system replacements take one to three days on site. Permits, equipment lead times and any electrical work add to the overall timeline.
Share the property, equipment and questions you have in mind.
(408) 901-8315
Call HAXX to discuss your property and scheduling.
