Flagstaff HVAC Installation & Replacement Done Right

Heating installation, furnace replacement, AC installation, mini-splits, maintenance, and new construction systems built for Northern Arizona's extreme climate.

Get Your Free Estimate (928) 266-5950

Local HVAC Work Built for 7,000 Feet

Big Bear focuses on replacements, upgrades, tune-ups, and new construction systems that hold up in Northern Arizona weather.

90%

Installations vs. repairs

100%

Locally owned in Northern Arizona

In-house custom metal shop

7000ft

High-elevation climate expertise

Heating, Cooling & Replacement Services in Flagstaff

Big Bear handles the jobs local homeowners actually ask for: furnace replacement, AC installation, heat pumps, mini-splits, maintenance, indoor air quality, and new construction HVAC.

Heating Installation

New furnaces, heat pumps, and replacement heating systems built for Northern Arizona winters.

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AC Installation

Central air, mini-splits, and cooling upgrades sized correctly for Flagstaff homes.

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New Construction HVAC

Complete heating and cooling systems for new home builds across Northern Arizona.

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Indoor Air Quality

Whole-home air quality upgrades including filtration, humidity control, and ventilation improvements.

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Custom Metal Fabrication

Chimney chase caps, range hood shrouds, and custom ductwork components built in-house.

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Maintenance & Tune-Ups

Seasonal checkups that prevent costly breakdowns and extend your system's life.

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Why Homeowners Call Big Bear

Big Bear keeps the process simple: figure out what the home needs, recommend the right system, and install it cleanly without the usual sales nonsense.

Furnace & AC replacement

When the old system is done, we size the replacement correctly and install it cleanly.

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Mini-splits & heat pumps

Great for additions, retrofits, shoulder seasons, and efficient all-electric comfort.

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New construction HVAC

Builder coordination, duct design, equipment selection, and install done right from the start.

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Maintenance & tune-ups

Seasonal service that helps homeowners avoid expensive breakdowns and extend equipment life.

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Straightforward Estimates. No Runaround.

If you need a replacement, upgrade, tune-up, or a bid for new construction, the process is simple: reach out, get a real estimate, and get the right system for the house.

Quick call or form submission so we know what you need
On-site estimate with honest recommendations and no pressure
Clear scope, clear pricing, and a system that fits the home

Best fit projects for Big Bear

Homeowners: furnace replacement, AC installation, mini-splits, heat pumps, ductwork upgrades, and tune-ups.

Builders: complete HVAC systems for new homes, duct layout, equipment selection, and jobsite coordination.

Northern Arizona homes: systems sized for elevation, cold winters, dry air, and big day-to-night swings.

Why Big Bear?

Licensed & Insured

AZ ROC Specialty Residential

Locally Owned

Flagstaff-based, community-driven

Northern AZ Experts

Built for 7,000ft elevation

Residential Specialists

Homes & new construction

Proudly Serving Northern Arizona

From Flagstaff to Williams and everywhere in between — we're your local HVAC team.

Need Furnace Replacement, AC Installation, or a New Build Bid?

Call Big Bear or request a free estimate online for your home or new construction project.

Get Your Free Estimate (928) 266-5950