Heating & cooling · Mercer Island, WA
Ductless Mini-Split Install in Mercer Island, WA
Zoned ductless mini-splits for additions and retrofits.
Ductless Mini-Split Install in Mercer Island, WA
Xion Build provides expert ductless mini-split install in Mercer Island. As a trusted Mercer Island heating & cooling contractor, we manage design, materials, permits, and every trade in-house so your project stays on schedule and on budget. Zoned ductless mini-splits for additions and retrofits.
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 ductless mini-split install
A typical ductless mini-split install in Mercer Island can involve ductwork, controls, equipment, venting — 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 ductless mini-split install cost in Mercer Island?
Most ductless mini-split install projects in Mercer Island fall between $6,500 – $23,500, 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.
Meticulous job sites and clear daily communication, with respect for your home, your time, and your neighbors.
One dedicated point of contact coordinates the entire job, so you're never chasing subcontractors or wondering who's responsible.
Our Mercer Island heating & cooling process
Handoff includes a detailed walkthrough and a written warranty — not a crew that vanishes the moment the dust settles.
Design and material selections come next, so finishes, fixtures, and pricing are locked in before demolition — no surprises mid-project.
It starts with a free, no-obligation consultation: what you want, the constraints, and a realistic budget range before you commit to anything.
Frequently asked questions
What should we decide before starting a ductless mini-split install?
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.
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.
Do you offer free estimates for ductless mini-split install near Mercer Island?
Absolutely. We provide free, no-obligation in-home estimates throughout Mercer Island and the greater Eastside, with transparent, itemized pricing.
Do you offer a ductless mini-split install in Mercer Island, WA?
Yes. Zoned ductless mini-splits for additions and retrofits. Xion Build is a licensed, bonded, and insured heating & cooling contractor serving Mercer Island and the surrounding WA communities.
Do you handle permits and inspections?
Yes. We manage permit applications, schedule inspections, and coordinate any required engineering so the work passes cleanly in Mercer Island.
Related services in Mercer Island
Ductwork design & installation
New and reconfigured duct runs for even comfort.
View detailsWhole-home ventilation (HRV/ERV)
Balanced fresh-air ventilation systems.
View detailsBath & range exhaust ventilation
Properly ducted exhaust to the exterior.
View detailsSmart thermostat & zoning
Zoned controls and smart thermostats.
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