Formerly Adam & Sam Brothers RepairWoodinville · Ductless heat pumps
Woodinville jobs often involve a building other than the house: a detached shop, a studio over the barn, a backyard cottage. Mini-splits suit those spaces well. We install them, repair the leaks long line sets develop, and keep outdoor units above the snow.
Woodinville changed fast after it incorporated in 1993. About 44% of its homes were built after 2000 and another 37% between 1980 and 1999, and downtown now has large apartment buildings, where roughly a quarter of the city's homes are found. Around that core, the valley and hillsides still hold farm roots, from Hollywood Farm, built in 1910, to the roughly 130 wineries and tasting rooms the area is now known for. Many properties have more than one building, and those outbuildings rarely have ducts or any heat beyond a plug-in heater. Gold Creek Park, the Sammamish River trails and Eastrail thread through it all, and SR 522 ties the town to the rest of the Northshore.
That is why a Woodinville mini-split conversation often starts outside the main house: a woodshop that needs heat in January, an art studio that overheats in August, an accessory dwelling for a parent. A mini-split heats and cools a building like that efficiently without a furnace or ductwork. We also install heads in the houses themselves, especially in bonus rooms and additions, and we repair and deep-clean existing systems. Every new line set is pressure-tested with nitrogen and evacuated by our own technicians, who handle refrigerant under EPA Section 608 rules. Woodinville is 18–23 minutes from our shop by I-405 and SR 522, and when you call early in the day, Monday through Saturday, we can usually be there before evening.
A detached building changes the design. The simplest approach is often a separate single-zone system with its own outdoor unit beside the outbuilding, rather than a long line set from the house. Long runs are possible, but every extra foot adds refrigerant, every joint is another possible leak, and buried or exposed lines need protection. We also look at the electrical feed to the outbuilding, since a shop subpanel may need capacity for the new circuit. All of that goes into the written quote before you commit, and after startup we leave you the readings so the next service visit has a baseline.
Shops and studios are hard on indoor units. Sawdust, paint mist and clay dust load the filters and stick to the coil, so a mini-split in a working shop needs more frequent cleaning than one in a bedroom. We place the head away from the main dust source when we can. Shops with roll-up doors lose heat each time the door opens, so we size for recovery after the door closes, not just for a sealed building. In a finishing room, we also aim the airflow so it does not stir dust onto a coat of varnish while it dries. In an accessory dwelling, by contrast, the priority is quiet operation and an easy thermostat, since the occupant may not want to think about the system at all.
Downtown apartment owners can add heads too where the building allows it, though the property manager or association usually has the final say. Weather sets the rest. On April 18, 2008, a convergence-zone band dropped 6.5 inches of snow on Woodinville, more than on most of the region, so we mount outdoor units on stands high enough to stay above drifts and give defrost water room to drain. Power outages on rural lines are another factor; PSE reported more than 400,000 customers out during the November 2024 bomb cyclone. PSE is the electric and gas utility here, and before the quote is finished we see which of its heat pump programs could apply.
Heating and cooling a shop or a studio with its own single-zone system starts at $4,000, and the price includes both the equipment and the installation. Inside the house, an added zone starts at $2,250, and bigger multi-zone systems are quoted on request after the walk-through, which costs nothing, as does the written quote. On an existing system, mini-split repair and cleaning start at $285; a leaking line set is a typical repair, and one chewed by rodents is priced after we see how far the damage runs. These are starting prices for our area and not a quote for your property. A repair is listed in writing after we diagnose the system, and an install is priced after we measure the space.
Starting prices for the north Seattle area, 2026. The $85 diagnostic is included in any repair you approve, and the exact price is in the written estimate before work starts.
Install prices start here, equipment and installation included, before any utility program. Multi-zone systems are priced after a visit. We do not charge for the site visit or the written quote.
For outbuildings, the question is often whether an aging, undersized unit is worth another repair. If a shop mini-split is under ten years old and the issue is a fan, a board or a single leaking flare, repair is the way to go. If the system has leaked more than once along a long line set, or rodents have damaged the wiring and insulation, a new single-zone system mounted next to the building is often cheaper over time than repeated repairs. Inside the house, most Woodinville systems are fairly new, so repairs dominate. One exception is an older head serving a bonus room that has never quite kept up; replacing it with a correctly sized unit or adding a zone may solve the real problem. We write repair and replacement prices side by side so you can choose.
It is possible with a multi-zone system, but we rarely recommend it for a building far from the house. The long line set adds cost, refrigerant and leak risk, and a shared system means both buildings lose comfort when it fails. A separate single-zone system for the shop is usually simpler. We compare both in the quote.
Yes, if the building is reasonably insulated and the head is sized for it. Current inverter units keep heating well below the temperatures a typical Woodinville winter brings. Uninsulated walls or a large uninsulated door can overwhelm any heater, so we check those first and tell you if insulation would make a bigger difference.
Mount it on a stand or wall bracket that keeps it above the usual snow depth, with open space around it so it can breathe and drain. If snow builds up, switch the unit off at its breaker and gently brush the snow away without touching the fins. Never chip ice off the coil with a tool.
Very often. A small accessory dwelling can usually be heated and cooled by one or two heads, without ducts or a separate furnace. We check the electrical service, choose quiet equipment and place the outdoor unit away from bedroom windows. The occupant gets a simple remote or wall control.
Yes. PSE provides electricity in Woodinville, and its heat pump programs depend on details such as your current heating source and the equipment chosen. Reviewing those is part of preparing your written quote. Amounts and rules change, so no figure is promised in advance.
Talk to Adam & Sam
Call (425) 570-9520 with the model number of the indoor head, or book online for up to $18 off the repair. Approve the repair and the $85 diagnostic is already inside its price; the walk-through for a shop, studio or house install costs nothing.
Mini-split
No ducts, room-by-room control, heating and cooling from one wall unit: why mini-splits suit North Seattle metro homes and what a clean install looks like.
Schedule a repair
Send the basics and we call you back with an arrival window, most days the same morning.