Heating & cooling · Mercer Island, WA

Furnace Replacement in Mercer Island, WA

Gas and electric furnace replacement.

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Furnace Replacement in Mercer Island, WA

When Mercer Island homeowners search for furnace replacement or a dependable heating & cooling contractor near them, they want craftsmanship that lasts and a crew that communicates. That's exactly what we do. Gas and electric furnace replacement.

Mercer Island projects often involve sloped lots, shoreline rules, and mid-century homes that benefit from thoughtful structural and design planning.

You get a single point of contact, licensed and insured trades, and clear communication from the first sketch to the final walkthrough.

What's included in your furnace replacement

A typical furnace replacement in Mercer Island can involve commissioning, venting, ductwork, controls — and we put the full scope in writing so you know exactly what's covered before work starts.

We write scope in plain terms: what we'll do, the materials, the sequence, and how any surprises are handled if something is uncovered.

How much does a furnace replacement cost in Mercer Island?

Most furnace replacement projects in Mercer Island fall between $5,600 – $16,500, depending on the size of the space, the finishes you choose, and the condition of what's already there.

Because every home is different, we don't quote final numbers sight unseen. After a free in-home consultation you get a detailed, itemized estimate tied to your actual heating & cooling project — so there are no surprises later.

Why Mercer Island homeowners choose Xion Build

Honest guidance on where to invest and where to save, so your budget goes toward what adds real, lasting value.

Transparent, written estimates with no hidden fees — you know what you're paying for before work begins.

Licensed, bonded, and insured in Washington — every project is built to meet or exceed code and backed by a written warranty.

Our Mercer Island heating & cooling process

Each phase is inspected and documented, and we keep you updated so you always know what's happening and what's next.

It starts with a free, no-obligation consultation: what you want, the constraints, and a realistic budget range before you commit to anything.

Handoff includes a detailed walkthrough and a written warranty — not a crew that vanishes the moment the dust settles.

Frequently asked questions

What should we decide before starting a furnace replacement?

Your budget range, must-haves, timeline, and any finishes you already love. For heating & cooling work we also review access, existing conditions, and whether permits are required in Mercer Island.

Do you offer a furnace replacement in Mercer Island, WA?

Yes. Gas and electric furnace replacement. Xion Build is a licensed, bonded, and insured heating & cooling contractor serving Mercer Island and the surrounding WA communities.

How much does a furnace replacement cost in Mercer Island?

Most furnace replacement projects in Mercer Island run $5,600 – $16,500, depending on scope, finishes, and existing conditions. After a free in-home consultation we provide a detailed written estimate so your Mercer Island price reflects the actual project — not a guess.

How long does a furnace replacement take?

Timelines depend on scope and permitting. Once the plan is confirmed we give you a realistic schedule and keep you updated as the heating & cooling work progresses.

Are you a licensed heating & cooling contractor?

Yes — Xion Build is licensed, bonded, and insured in WA. Every project is built to meet or exceed code and is backed by a written warranty.

Related services in Mercer Island

Heat pump installation

High-efficiency heat pumps for heating and cooling.

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Ductwork design & installation

New and reconfigured duct runs for even comfort.

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Radiant heating systems

Hydronic radiant heat for floors and rooms.

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Ductless mini-split install

Zoned ductless mini-splits for additions and retrofits.

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