Mini Split Installation in Beaverton
No ductwork? No problem. Whether you’re adding a room addition, replacing window units, or heating and cooling a space central air can’t reach — mini split installation in Beaverton is the practical answer. Our CCB-licensed technicians size the system correctly, pull the permit, and install it in a single day.
Professional Mini Split Installation in Beaverton, Oregon
Ductless installation looks simple on paper – mount the indoor head, run the line set through the wall, connect it to the outdoor compressor, commission the refrigerant charge. In practice, the decisions made before any of that happens are what determine whether the system works well for fifteen years or disappoints you in the first winter.
Sizing is where most installs go wrong. A single-zone Mitsubishi 9,000 BTU unit is right for a 350–400 sq. ft. room with normal insulation. Put it in a 600 sq. ft. space or a room with south-facing glass in Beaverton’s summer sun, and it’ll short-cycle – hit setpoint too fast, shut off, let humidity creep back up, run again. Over-sizing isn’t better than under-sizing. It’s worse.
Before we spec any system, we run a Manual J load calculation for the space. That’s the ACCA-standard method Oregon mechanical code actually requires for new equipment. It accounts for square footage, ceiling height, insulation R-values, window orientation, and local climate data for Washington County. Not a rule of thumb. Actual math.
We install Mitsubishi Electric, Daikin, LG, and Fujitsu systems – brands with documented reliability data and Oregon distributor support for warranty parts. Installation includes all refrigerant line set fabrication, electrical disconnect, condensate drain routing, wall penetration sealing, and startup commissioning. You get a system that’s been leak-tested, charged to manufacturer spec, and verified at operating temperatures before we leave.
Beaverton mini split installation permits are filed with Washington County Building Department when required – typically for any new electrical circuit or refrigerant system over a certain BTU threshold. We handle that paperwork. You shouldn’t have to.
Mini Split Installation and Related HVAC Services
Furnace out? We restore heat fast - same-day for most Washington County calls.
New central air conditioning for homes with existing ductwork — sized, permitted, and installed in a day.
No heat? We repair furnaces, boilers, and electric heating systems — and restore warmth fast, done right the first time.
Ducted and ductless heat pump repair — the year-round systems Oregon homes depend on most.
One licensed team for any heating, cooling, or ventilation fault. Honest diagnosis, clear options.
Something wrong with an existing ductless system? We diagnose and repair all major brands across Beaverton and Washington County.
Is Mini Split Right for You?
No existing ductwork
Older Beaverton homes built before the 1980s often have radiant heat and zero ductwork. Adding central air means either running sheet metal through finished walls (expensive, invasive, months of work) or installing a ductless system in a day. The math isn't complicated.
Room additions and ADUs
Extending existing ductwork to a new addition or backyard ADU usually means the air handler can't keep up with the added load. A dedicated mini split sized for that space handles it independently — without stressing the rest of the system.
Rooms that never get comfortable
Garages converted to living space, sunrooms, upstairs bedrooms over a south-facing kitchen — these spots run 10–15°F hotter than the rest of the house because the central system wasn't designed for them. A single-zone wall unit fixes that without touching the existing equipment.
Replacing window AC units
Window units are loud, inefficient, and a security gap in every window they occupy. A ductless wall unit in the same room runs quieter, uses 30–40% less electricity, and heats as well as it cools.
How Our Beaverton Mini Split Installation Works
Site Assessment & Load Calculation
We visit the space, take measurements, check insulation, assess electrical panel capacity, and confirm line set routing options. Manual J load calculation runs on the actual numbers — not a guess based on square footage alone.
System Selection & Written Quote
We recommend a specific system — brand, model, BTU rating, single-zone or multi-zone configuration — with a written price that includes equipment, labor, permits, and all materials. No line items that appear on the day of install.
Installation & Commissioning
Indoor head mounted, line set run and insulated, outdoor unit set on a pad or wall bracket, electrical connected, refrigerant system leak-tested and charged to manufacturer spec. We run the system through a full heating and cooling cycle before closing out the job.
Why Choose HVAC Beaverton for Mini Split Installation
Right-sized systems, clean installs, and paperwork handled — from permit to final inspection.
Family Owned & Local
A Beaverton-based crew that installs like it's our own home — no subcontractors, no shortcuts.
One-Day Installation
Most residential installs are completed in a single day, scheduled around your routine.
Licensed & Certified
CCB-licensed, EPA 608-certified installers. Every job is permitted and inspection-ready.
What Our Customers Say
Schedule Your Mini Split Installation in Beaverton
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Frequently Asked Questions
Single-zone systems typically run $3,000–$5,500 installed, depending on BTU size, equipment brand, and line set length. Multi-zone systems with two or three indoor heads run $5,500–$10,000+. You get an exact written quote after the site assessment — the number doesn't change on install day.
Usually yes — any new electrical circuit and refrigerant system above a certain capacity requires a mechanical and electrical permit through Washington County. We file it. Most homeowners who skip permits run into problems at resale when the inspection flags unpermitted HVAC work.
Single-zone: one day, typically 6–8 hours. Multi-zone with two or three indoor heads: one full day, occasionally into a second morning for wiring and final commissioning. We don't schedule jobs we can't finish
Mitsubishi Electric, Daikin, LG, and Fujitsu primarily — all carry manufacturer warranties of 5–12 years on parts with proper registration. We can discuss other brands if you have a preference, but we'll be honest about what the reliability data shows.
Yes — and that's the main reason they've taken over the Oregon market. Modern heat pump mini splits from Mitsubishi and Daikin maintain full heating capacity down to 5°F outdoor temperature. Beaverton winters rarely test that limit. You get year-round comfort from one system.
Single-zone: one outdoor unit, one indoor head, one room or space. Multi-zone: one outdoor unit connected to two, three, or four indoor heads in different rooms, each controlled independently. Multi-zone costs more upfront but less than running separate systems for each space.