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 flat-rate pricing set after a real sizing consultation rather than a generic swap.

Flat-rate pricing
90-day warranty
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90-day workmanship warranty
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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 dispatched to 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 technician 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.

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.

Yes — a 1-year workmanship warranty covers the installation. If covered work isn't right within that window, it gets made right at no charge.

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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Related home services

Homeowners who book hvac system replacement often need a hand elsewhere too. Browse related NorTech services — flat-rate pricing, vetted local providers, and the same workmanship warranty.

Ductwork Installation & Repair

New ductwork or repair of existing ducts — always a verified C-20 HVAC contractor.

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A ductless mini-split system installed — always a verified C-20 HVAC contractor, since refrigera…

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Furnace Repair

Furnace not heating, cycling wrong, or making noise — diagnosed and repaired.

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AC Repair

AC not cooling, leaking, or tripping the breaker — diagnosed and repaired.

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Air Duct Cleaning

A full duct-system cleaning to clear dust, allergens, and debris from your HVAC.

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HVAC Maintenance & Tune-Up

A seasonal tune-up to keep your system running efficiently and catch small problems early.

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Whole-House Fan Installation

A whole-house fan installed in the attic to pull cool evening air through the home.

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General Handyman

Your whole to-do list handled in one visit — repairs, mounting, and odd jobs done right.

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Drywall Repair & Patching

Nail holes to 12-inch patches, texture-matched and primed so the wall looks untouched.

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Get matched with a background-checked local provider, see your flat-rate price the moment you enter your ZIP, and lock in a time that works — every job backed by a 90-day workmanship warranty.

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