Ductwork Installation in Kent, WA
Custom sheet metal ductwork fabricated and installed serving East Hill, West Hill, Kent Station area, and all of Kent. No subcontractors, all permits pulled, built to exceed WA code.
Your Kent Ductwork Specialists
Kent homeowners in East Hill, West Hill, and Kent Station area often discover that ductwork is the silent culprit behind comfort and efficiency problems. Many homes in Kent were built when furnaces were oversized, fuel was cheap, and ductwork was sized for low static pressure. Modern high-efficiency equipment — variable-speed furnaces, two-stage ACs, heat pumps — needs properly sized ducts and tight seals to deliver rated performance. Original ductwork in older Kent homes is often undersized, leaky at every joint, and missing insulation in unconditioned spaces.
Pacific Northwest homes lose 20-30% of conditioned air through duct leaks on average, with most of that loss happening in attics, crawl spaces, and unconditioned basements. Kent's wet winters make crawl-space duct insulation especially important — uninsulated ducts in damp crawl spaces sweat in summer and waste heat in winter. Whether you're replacing a failing furnace and want ducts sized to match the new equipment, adding cooling to a heating-only home, building an addition, or simply tired of one room being 8 degrees off the rest of the house, ductwork is where comfort actually happens. We fabricate our own sheet metal in-house — no subcontractors, no shortcut materials — and pull every permit King County requires.
Varsity Heating and Cooling specializes in ductwork that works WITH your HVAC system, not against it. We perform Manual D load calculations, balance airflow across every register, seal every joint with mastic (not tape), and insulate everything in unconditioned space. The result: equipment that hits its rated efficiency, every room comfortable, and energy bills that reflect what you're paying for.
Ductwork Services for Kent Homes
Why Kent Homeowners Choose Us
Fast Response
Based in Federal Way, we reach Kent quickly for ductwork inspections and estimates. Most ductwork projects are scheduled within a week of approval.
Know Local Codes
We handle King County permits and inspections for every ductwork install in Kent. Licensed (VARSIHC766RJ), insured, and compliant with all Washington State mechanical codes — including IMC and energy-code requirements.
Understand Local Homes
From 1960s-1980s split-levels and ramblers to newer construction, we know how Kent homes were originally ducted and where existing systems typically fall short.
Ductwork Challenges for Kent Homes
Kent's older housing stock — 1960s-1980s split-levels and ramblers, newer suburban developments, manufactured homes, and townhome infill — frequently has ductwork problems that were "good enough" 50 years ago but are crippling modern HVAC performance today. Common issues include: original ductwork too small for new equipment, leaky panned-joist returns under floors, supply runs in uninsulated attics, missing or crushed flex duct, and zero balancing dampers. We assess every installation with a manometer reading, not a guess.
Aerosol duct sealing, manual sealing with mastic, and proper R-8 insulation in unconditioned space are non-negotiable parts of every ductwork project we do in Kent. We don't tape seams — tape fails. We don't use undersized return air paths — they starve the blower. We do it right or we don't do it.
For Kent homeowners building additions, finishing basements, or adding bonus rooms above garages, ductwork extension is rarely a simple "add a register" job. New runs need to be load-calculated, balanced against existing rooms, and connected with proper takeoffs. We treat additions as a chance to fix existing imbalance, not just stretch the existing system thin.
Whether you need a complete duct replacement in East Hill, a custom-fabricated trunk line for a new heat pump in West Hill, or just a real diagnosis of why one room never warms up, Varsity Heating and Cooling brings sheet metal craftsmanship and HVAC engineering together. We provide free in-home assessments with written estimates — and we'll show you exactly what's wrong before we propose a fix.
Quick Facts
“The service was fast, the team was competent and not overly salesy. Rapid response and same-day repair of our heat pump.”
— Scott D., Federal Way, WA
Ductwork Questions from Kent Homeowners
Ductwork projects in Kent typically range from $3,000 to $8,000, depending on scope. A partial replacement of a few crushed or leaking runs is at the lower end. A complete custom-fabricated duct system for a 2,000-3,000 sq ft home with all-new trunk lines, mastic sealing, and R-8 insulation is at the higher end. We provide free in-home assessments with written, itemized estimates.
Yes, King County requires a mechanical permit for ductwork installation in Kent. Varsity Heating and Cooling handles all permitting and inspections as part of our installation service, so you don't have to worry about paperwork.
Most ductwork projects in Kent take 1-3 days. A targeted replacement of a few problem runs is often a one-day job. A complete duct system replacement paired with a new furnace or heat pump install runs 2-3 days, including commissioning and balancing. We schedule to minimize disruption and always leave your home clean.
Almost always, the cause is ductwork: undersized supply, missing or unbalanced damper, kinked flex duct, leaky takeoff, or no return air path. We diagnose the actual cause with manometer readings and airflow measurements — not guesses — and propose the smallest fix that actually solves the problem.
We fabricate our own galvanized sheet metal trunk lines, plenums, and transition fittings. We use rigid metal supply runs wherever possible and limit flex duct to short, properly supported connections at registers. All joints are sealed with mastic (not tape). All ducts in unconditioned space (attics, crawl spaces) are insulated to R-8 minimum. No subcontractors and no shortcut materials.
Often, yes — at minimum, you should have it inspected. A new high-efficiency furnace or variable-speed heat pump can lose 20-30% of its rated performance through leaky, undersized, or improperly sealed ductwork. If your existing ducts are 25+ years old, leaking visibly, or were sized for a smaller previous unit, it's almost always worth replacing or modifying them as part of the equipment install.
Ductwork Near Kent
Ready for a Free Ductwork Estimate in Kent?
Honest pricing on ductwork installation, replacement, and modification — fabricated by our own sheet metal crew.