Looking for ductless mini split installation in Auburn, Seattle, Tacoma, or the greater Puget Sound area? Le Bros Construction installs single-zone and multi-zone ductless mini split systems with master-electrician-supervised electrical work and EPA Section 608 Universal certified refrigerant handling. One licensed contractor for both the electrical hookup and the HVAC install — fewer scheduling headaches and a single point of accountability for the whole project.
What Is a Ductless Mini Split System?
A ductless mini split is an energy-efficient heating and cooling system that doesn’t require ductwork. Each indoor unit (wall-mounted, ceiling cassette, or floor console) connects to an outdoor compressor via a small line set carrying refrigerant and electrical wiring through a 3-inch hole in the wall. Mini splits are ideal for older Seattle and Tacoma homes without existing HVAC ductwork, additions, DADUs, garages, sunrooms, and any space that needs independent temperature control.
Our Ductless Mini Split Installation Services
- Single-zone mini split installation (one indoor unit, one outdoor unit)
- Multi-zone ductless heat pump installation (multiple indoor units on one outdoor compressor)
- Wall-mounted, ceiling cassette, and floor console indoor unit installation
- Outdoor condenser siting, pad installation, and wall mounting
- Line set installation with clean concealment (line hide covers, wall penetrations sealed)
- Refrigerant charging and full system commissioning (EPA Section 608 Universal certified)
- 240V electrical circuit installation and panel work
- Outdoor disconnect installation per Washington electrical code
- Permits and final inspection coordination
Ceiling Cassette Mini Splits: Pros, Cons, and When to Choose One
If a wall-mounted indoor unit doesn’t fit your space or your style, a 4-way ceiling cassette mini split is the other ductless option we install. These units sit flush in the ceiling with a low-profile grille that blows conditioned air in four directions, giving you HVAC that’s almost invisible once installed — perfect for open-concept living rooms, kitchens, and any space where a wall unit would compete with your design.
Pros of Ceiling Cassette Mini Splits
- Unobtrusive aesthetic — the cassette grille is roughly two feet square and sits flush with the ceiling, leaving walls completely free for furniture, art, and windows
- Four-way air distribution — conditioned air blows in all four directions instead of just one, so temperature stays more even across the room
- Ideal for open-concept spaces — large living rooms, kitchens, and great rooms benefit more from ceiling-distributed air than from a single wall-mounted unit pushing air across a long room
- Doesn’t compete with your interior design — looks like a recessed lighting fixture rather than an HVAC appliance on the wall
- Quieter perceived noise — the unit body is up in the ceiling cavity instead of at head height
Cons of Ceiling Cassette Mini Splits
- Requires attic or ceiling cavity space above — the unit body extends roughly 12 inches above the ceiling line, so cassettes won’t work in vaulted ceilings, cathedral ceilings, or rooms with finished living spaces directly above unless we build a soffit
- More involved installation — cutting the ceiling, framing support, and routing refrigerant lines through the cavity takes longer than a wall-mount install (typically a day and a half vs. one day per zone)
- Higher equipment and labor cost — typically $500–$1,500 more per zone than the equivalent wall-mount system
- Filter cleaning requires a step ladder — accessible but you’ll be reaching up to the ceiling every few months for routine cleaning
- Won’t work in every Seattle home — older homes with low attic clearance or finished basements above living spaces may not have the cavity depth required
For most single-story Seattle, Tacoma, and Auburn homes with attic space above the room, ceiling cassettes are a great upgrade over a wall-mount unit — especially in larger living spaces where a single wall unit would feel undersized. We assess your ceiling cavity during the free in-home estimate and tell you whether a cassette is feasible for your specific layout, or whether a wall-mount or floor-console unit makes more sense for the space.
Required for Mini Split InstallationEPA Section 608 Universal Certified
Federal law requires anyone working with refrigerant to hold an EPA Section 608 certification. Quyen Le holds the highest level — Universal — covering Type I, II, and III refrigerants.
EPA 608 UniversalQuyen Le — certified for all refrigerant typesWA Master ElectricianLoi Le — supervises every electrical hookupLicensed, Bonded & InsuredWashington State electrical contractor
Why Choose Le Bros Construction for Mini Split Installation?
EPA Section 608 Universal Certified
Federal law requires anyone working with refrigerant to hold an EPA Section 608 certification. Quyen Le holds the highest level — Universal — covering Type I, II, and III refrigerants.
- Licensed Washington electrical contractor (WA L&I License #LEBROBC755MT) — your electrical panel and circuits are sized correctly by a master electrician
- EPA Section 608 Universal certified for refrigerant handling — federally required for legal mini split installation
- Master-electrician-supervised installation — every job is overseen by a licensed master electrician
- One contractor, one bill — no juggling separate electricians and HVAC techs, no scheduling conflicts, no finger-pointing if something needs to be revisited
- Permits and inspections handled — we pull the electrical permit and coordinate with your local jurisdiction
- Locally owned, Auburn-based — serving the greater Puget Sound area
Common Questions About Ductless Mini Split Installation
How much does mini split installation cost in the Seattle area?
Ductless mini split installation typically ranges from $3,500 to $8,000 for a single-zone system and $7,000 to $15,000+ for multi-zone systems, depending on the equipment, the number of indoor units, line set length, and whether any electrical panel upgrades are needed. We provide free written estimates after an in-home assessment.
Do I need an electrical panel upgrade for a mini split?
It depends on your existing panel capacity. A single-zone mini split typically draws 15–30 amps at 240V. Older Seattle and Tacoma homes with 100-amp panels often have enough headroom for one mini split, but multi-zone systems or homes already running heavy loads (EV chargers, electric ranges, hot tubs) frequently need a 200-amp panel upgrade first. We assess your panel as part of the free estimate.
How long does ductless mini split installation take?
A typical single-zone installation takes one full day. Multi-zone systems with three or four indoor units usually take two days. Add an extra day if a panel upgrade is required. We coordinate the electrical permit and final inspection so you don’t have to chase paperwork.
Are ductless mini splits eligible for rebates or tax credits?
Yes. The federal Inflation Reduction Act offers up to a 30% tax credit (capped at $2,000) for qualifying ductless heat pump installations. Puget Sound Energy, Tacoma Public Utilities, and Snohomish PUD all offer additional ductless heat pump rebates that can stack with the federal credit. Eligibility depends on the equipment’s HSPF/SEER ratings — we install models that qualify and provide the documentation you’ll need to claim the incentives.
Service Areas for Ductless HVAC Installation
Le Bros Construction installs ductless mini splits throughout the greater Puget Sound area, including:
- Auburn
- Seattle
- Tacoma
- Bellevue
- Olympia
- Kirkland
- Renton, Kent, Federal Way, Puyallup, Gig Harbor, Redmond, Issaquah, Burien, Tukwila, Mercer Island, Sumner, and Lacey
Get a Free Ductless Mini Split Installation Estimate
Ready to add ductless heating and cooling to your home? Call Le Bros Construction at 206-850-8293 or visit our contact page for a free in-home estimate. We’ll assess your electrical panel capacity, recommend the right ductless system for your space, walk you through the rebate and tax-credit options, and give you a written quote.