HVAC Installation in Altadena

Heat pump and AC planning for Altadena homes.

Read the Altadena heat pump installation guide for home-specific system options, electrical review and project-planning questions.

Altadena sits in the foothills above Pasadena, in SCE territory, with a climate that swings between hot, dry summers and cool winter nights. Many homeowners are rebuilding after the Eaton Fire. For both rebuild and upgrade projects, the right HVAC system is a critical early decision.

• →Heat pumps for rebuilds and upgrades. All-electric heat pump systems can support electrification, solar planning and comfort goals for new or upgraded Altadena homes. We size every system with a Manual J load calculation based on the actual structure — critical for a rebuilt home where square footage, insulation and orientation may differ from the original.
• →Ductless mini-splits for additions and ADUs. If you are rebuilding with an ADU or adding space without existing ductwork, ductless mini-split systems provide zone-specific heating and cooling without the expense and efficiency losses of new duct runs.
• →SCE heat pump rebate review. Heat pump incentive availability changes by program, region, reservation status, income rules and funding. We review current SCE, TECH Clean California, HEEHRA/HEAR and related rebate or waitlist pathways during your estimate. Rebates are subject to program approval.

HVAC, solar, and battery: plan them together.

Many Altadena homeowners rebuilding after the Eaton Fire are planning HVAC, solar panels, and battery backup as a single integrated system. Starting with the end in mind matters:

• →Heat pump + solar pairing. A heat pump paired with rooftop solar may offset part of the home's heating and cooling load during daylight hours, depending on system size, weather, usage, rate plan and equipment settings.
• →Battery backup for PSPS outages. Altadena and the foothill communities can be affected by SCE Public Safety Power Shutoffs during extreme fire weather. A battery backup system may support selected comfort loads during outages when battery capacity, protected circuits, weather and solar production allow. Runtime and HVAC coverage depend on approved design, battery capacity, protected loads, weather and usage.
• →Panel sizing for all-electric loads. Going all-electric during a rebuild (heat pump, heat pump water heater, induction range) changes your electrical panel requirements. We coordinate with solar and battery plans so everything is sized together.

Solar installation in Altadena →  ·  Battery backup in Altadena →

LA County HVAC permits for Altadena.

Altadena is an unincorporated community in Los Angeles County, so HVAC permits are issued through LA County Department of Regional Planning and Building and Safety — not the City of LA (LADBS) or any Altadena city department. We pull all required permits, prepare the required mechanical documentation, and coordinate inspections as part of every installation. We coordinate required permit and inspection steps for the approved scope.

How an Altadena HVAC installation is planned.

1. 1Confirm the project type: replacement, rebuild, ADU, mini split, ducted heat pump, AC replacement or whole-home electrification.
2. 2Perform load and duct review: document insulation, windows, orientation, duct condition, room layout and fire-rebuild plans before equipment selection.
3. 3Review electrical readiness: coordinate heat pump loads with panel capacity, solar, Powerwall, EV charging and future all-electric equipment.
4. 4Confirm rebates and permits: review SCE, TECH Clean California, HEEHRA/HEAR and LA County permit needs without assuming incentive approval.
5. 5Finalize written scope: confirm equipment, ductwork, electrical items, permit steps, exclusions and inspection sequence before installation.

Manual J load calculation guide →  ·  HVAC permits and HERS testing guide →

What can change an Altadena HVAC estimate?

Rebuild or remodel scope

New square footage, ADUs, changed windows, insulation, roof design and room layout can all change the load calculation and equipment selection.

Electrical capacity

Heat pumps, EV charging, Powerwall, solar and all-electric appliances should be coordinated before the final panel and HVAC plan is approved.

Ductwork and comfort goals

Old ducts, new duct runs, zoning, return-air changes and room-by-room comfort problems can affect the final scope.

All services in Altadena.

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