Heating, cooling & air — installed right.
From a single ductless mini-split to a crane-set commercial rooftop system, Infinium Air brings the same discipline to every project: real load calculations, clean installation, proper permits, and a straight answer at every step.
AC Installation & Replacement
High-efficiency air conditioning sized by an actual load calculation — square footage, insulation, window exposure, duct condition — not a guess from the driveway. Like-for-like condenser swaps, full system upgrades, and new installations for homes that never had cooling.
What's included
- On-site load calculation and duct evaluation
- Removal and legal disposal of old equipment & refrigerant
- New condenser and coil installation, properly charged and commissioned
- Building permit and HERS testing coordination (required in CA)
- Airflow verification and thermostat setup
- Itemized quote — equipment, labor, permits as separate lines
Investment range
$8,000 – $15,000 for condenser + coil replacement; $14,000 – $25,000 for full furnace + AC systems, depending on size and efficiency tier.
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Heating, Furnaces & Heat Pumps
Gas furnace replacement up to 96%+ AFUE, and electric heat-pump conversions that heat and cool from a single system. We quote both paths with real numbers — equipment, operating cost, and any electrical work — so you choose with your eyes open, not from a sales pitch.
What's included
- Heating load calculation and equipment sizing
- Removal and disposal of the old furnace
- New equipment installation: gas furnace or heat pump system
- Venting, gas line, and condensate work as required
- Permit and inspection coordination
- Incentive check — we confirm what rebate programs are live when we quote
Investment range
$6,000 – $12,000 for furnace replacement; $16,000 – $30,000 for heat-pump conversions before incentives.
Get a Free EstimateDuctless Mini-Split Systems
Room-by-room heating and cooling with no ductwork required. The right answer for older East Bay homes that never had ducts, additions, ADUs, garages, bonus rooms, and any space the central system can't reach. Quiet, efficient, and zoned by design — each room gets its own setting.
What's included
- Zone-by-zone sizing for the rooms you actually use
- Indoor head mounting (wall, ceiling, or floor units)
- Outdoor condenser placement and line-set routing
- Electrical connection and condensate management
- Permit coordination and system commissioning
- Owner walkthrough — every remote, every mode
Investment range
$5,000 – $8,500 single zone; $14,000 – $25,000 multi-zone (3–4 rooms).
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Ductwork & Ventilation
The best equipment in the world can't fix bad ducts. Leaky, undersized, or crushed ductwork wastes 20–30% of the air you pay to condition — and it's the most common problem we find in East Bay homes built before 1990. We test, seal, repair, and replace.
What's included
- Duct inspection and leakage testing
- Sealing and insulation upgrades where ducts are salvageable
- Full duct replacement designed for correct airflow
- Ventilation and exhaust runs — bath, kitchen, make-up air
- HERS verification testing per Title 24
Investment range
$6,000 – $15,000 for whole-home duct replacement depending on size, access, and design.
Get a Free EstimateCommercial HVAC
Rooftop package units, VRF systems, make-up air, and tenant improvements — including crane-set installations. We work with property managers, general contractors, and building owners across the East Bay, quoting from plans or site walks and hitting schedule windows that keep your project moving.
Capabilities
- Packaged rooftop unit (RTU) replacement and new installation
- VRF / VRV multi-zone system design and installation
- Crane lifts coordinated and supervised — see the Projects page
- Commercial ductwork fabrication and installation
- Make-up air and exhaust systems
- Tenant improvement HVAC scope, permitted and inspected
Pricing
Quoted per project — from plans or a site walk. Fast turnaround on bid requests.
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Repair & Maintenance
Diagnostics and repair on all major brands — including systems we didn't install. And here's our promise: if a $400 repair gets you three more good years, we say so. We'd rather earn your replacement when it's actually time than sell you one today.
What we handle
- No-cool / no-heat diagnostics and repair
- Refrigerant leak detection and repair
- Capacitors, contactors, motors, control boards
- Seasonal tune-ups and filter programs
- Honest repair-vs-replace guidance with real math
The repair-or-replace rule we use
Repair cost × system age in years. Over $5,000–6,000? Replacement usually wins. Under it? Fix it and run it. We'll show you the math on your system.
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