HVAC · Property Services

HVAC System Replacement

When a furnace or AC system is past repairing — not just broken, but undersized, unsafe, or at true end-of-life — a full replacement needs a licensed HVAC contractor to size, permit, and install it correctly. NorTech connects you with a verified C-20 HVAC contractor for system replacement, with pricing set by local pros set after a real sizing consultation rather than a generic swap.

Pricing set by local pros

90-day warranty

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Your pro backs the work for at least 90 days

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Full HVAC system replacement across the Bay Area

Replacing a furnace or AC system isn't a like-for-like swap — the right unit depends on square footage, insulation, ductwork condition, and local climate zone within the Bay Area's own microclimates. NorTech verifies every provider offering a system replacement carries an active C-20 HVAC license, so sizing, permitting, and ductwork tie-in are handled by someone qualified to get it inspected and signed off, not just installed.

What's included in a full system replacement

The job starts with a sizing consultation matched to your home's actual heating/cooling load, then old-system removal, new furnace/AC installation, ductwork tie-in to the existing system (or new duct runs where needed), and permit and inspection handling throughout. This is the full-replacement scope — a repair to an existing system that just needs a part or a fix is a separate, smaller job.

Efficiency ratings and long-term savings

A higher-efficiency system costs more upfront but can meaningfully reduce utility bills over its lifetime, especially replacing a decade-plus-old unit. Your contractor can walk through efficiency options and realistic payback timelines during the sizing consultation.

When to book hvac system replacement

Your furnace or AC is more than 15 years old and repairs keep recurring

A provider has told you the system is undersized for your home's actual square footage

The system uses a phased-out refrigerant that's expensive or impossible to recharge

You're seeing a sharp jump in utility bills tied to heating or cooling inefficiency

A home inspection or remodel plan calls for full HVAC replacement, not a repair

90-Day Warranty

Backed by your provider’s warranty. If covered work fails, your provider makes it right — free.

Looking for a licensed HVAC contractor? Bigger jobs and anything that needs a permit go to a verified California C-20 contractor. See licensed HVAC contractor services.

Frequently asked

HVAC System Replacement — common questions

A sizing consultation looks at your home's square footage, insulation, and ductwork before recommending a system — an undersized or oversized unit wastes money and wears out faster either way.

Yes, and it's included in the scope. NorTech's verified C-20 contractor pulls the permit and coordinates inspection as part of the job.

Existing ducts are tied into where they're in good condition; sections that are undersized, leaking, or damaged are flagged separately rather than hidden behind the new equipment.

A workmanship warranty covers the installation: how the equipment is set, the ductwork tie-in and the permitted connections. If any of it is not right inside the warranty window, it is made right at no charge. The new equipment carries its manufacturer's own warranty on top.

Most residential system replacements are completed within a day or two, depending on ductwork condition and any tie-in work needed.

Yes — the sizing consultation is the right time to discuss efficiency tiers and any tradeoffs in upfront cost versus long-term savings.

Didn’t find your answer? Nova, our AI assistant, is in the chat bubble in the bottom-right corner and can help anytime.

What homeowners say

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