Stop Heating Your Attic and Start Saving on Your Energy Bills

Your attic insulation is one of the most cost-effective upgrades you can make to a Seattle-area home — and most homes in this region are significantly under-insulated.


We install attic insulation for homeowners across SeaTac, Seattle, Kent, Federal Way, and the broader south King County corridor. As a licensed, owner-operated contractor with 10+ years of experience, we handle the whole job — no subcontractors, no handoffs, no call center when you have a question.

We Offer Service Plans!

Reliable HVAC support for multifamily properties where uptime, coordination, and consistent performance matter.

What We Install and What to Expect

We assess your existing insulation, measure your current R-value, and recommend the right product and depth for your home's construction and your energy goals. Most Seattle-area attics should reach R-38 to R-60 to meet current energy code and maximize efficiency.

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Blown-In Insulation

The most common solution for existing homes. Blown-in insulation fills gaps and voids in irregular attic spaces, covers existing material where appropriate, and reaches the R-value your home needs without a major renovation.

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Batt Insulation

Fiberglass or mineral wool batt is used in new construction or in attics with clear joist bays and minimal obstructions. We'll tell you which approach fits your home before any work begins.

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Air Sealing

Insulation works best when air leaks are addressed first. We seal gaps around recessed lights, plumbing penetrations, and attic hatches before adding insulation — so the upgrade actually performs the way it should.

What Under-Insulated Attics Are Costing You

In the Pacific Northwest, heating costs are the biggest driver of high energy bills — and a poorly insulated attic is often the reason. Heat rises. If your attic isn't holding it in, your furnace runs harder, your home stays colder, and your monthly bill climbs.


The U.S. Department of Energy estimates that homeowners can save up to 15% on heating and cooling costs by properly air sealing and insulating their homes. In a region like Seattle where winters are long and damp, that adds up fast.

Common signs your attic insulation is underperforming:

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Rooms that never seem to warm up, even with the heat running

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High energy bills that don't match your usage

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Ice dams forming at your roofline in winter

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Drafts near the ceiling or in upper-floor rooms

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PSE Rebates Can Offset Your Upgrade Costs

If you're a Puget Sound Energy customer, you may qualify for a rebate on attic insulation upgrades. PSE's home weatherization program offers rebates based on the amount of insulation installed and your home's current efficiency baseline — and in some cases, income-qualified customers can access deeper incentives.


We're familiar with the PSE insulation rebate process and can help you understand what your home may qualify for before the job starts. The rebate won't cover everything, but it meaningfully reduces the out-of-pocket cost of an upgrade that pays for itself over time.

How Much Can You Save With Attic Insulation in Seattle?

The honest answer depends on your home's current R-value, your square footage, your heating system, and your usage patterns. But for most under-insulated homes in the Seattle area, the combination of lower monthly bills and available PSE rebates means the investment starts paying back within a few years.


During your free quote, we'll walk through your attic, assess what's there, and give you a straight answer about what upgrading will realistically accomplish for your home — not a sales pitch built around best-case numbers.

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Frequently Asked Questions About Attic Insulation

  • How much can I save with attic insulation in Seattle?

    Most homeowners with under-insulated attics see meaningful reductions in their heating bills after upgrading — the Department of Energy puts the potential savings at up to 15% on annual heating and cooling costs. Your actual savings depend on your current insulation level, your home's size, and your heating system. We'll give you a realistic estimate based on your specific home, not a generic range.

  • What R-value does my Seattle-area attic need?

    Current Washington State energy code recommends R-49 to R-60 for attics in our climate zone, depending on your home's construction and heating type. Many older homes in south King County fall well short of that. We'll measure what you have and tell you exactly what you need to reach code and maximize efficiency.

  • Do I qualify for a PSE insulation rebate?

    If your home is heated by Puget Sound Energy, you likely qualify for at least a partial rebate on attic insulation upgrades. The amount depends on your current insulation level and the scope of the upgrade. Income-qualified households may be eligible for larger incentives. We can walk you through the eligibility basics during your free quote.

  • How long does attic insulation installation take?

    Most attic insulation jobs are completed in a single day. The timeline depends on your attic's size, accessibility, and whether air sealing work is needed first. We'll give you a clear schedule before we start so you know what to expect.

  • Does new insulation help with roof moss or moisture problems?

    Indirectly, yes. A properly insulated and air-sealed attic reduces the warm, moist air that escapes through your roof deck — which can contribute to condensation and the conditions moss favors. If you're also dealing with moss growth on your roof, our roof cleaning and moss removal service addresses that directly.


Licensed, Local, and Here When You Call


Resolute Roofing is a licensed, bonded, and insured Washington contractor — registered with Washington L&I. We're minority-owned, owner-operated, and based in SeaTac. When you call us, you reach us. When we show up, it's our crew.


We serve homeowners across Seattle, SeaTac, Kent, Federal Way, Renton, Burien, Des Moines, Auburn, and Tacoma. If you're not sure whether we cover your area, just call — we'll tell you straight.

Built to Support Both Property Managers, Homeowners, and New Construction.

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HVAC Solutions Backed by Real Project Experience

Advantage Service Group has worked on everything from residential system replacements to large custom homes with advanced zoning, ventilation, and multi-system HVAC designs. The company regularly supports additions, remodels, multifamily properties, and high-performance new construction projects requiring engineered load calculations, custom ductwork, and coordinated ventilation systems.

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What Clients Can Expect When Working With ASG

  • Responsive Communication
    Clear updates and reliable scheduling help eliminate unnecessary confusion during service calls and projects.
  • Experienced HVAC Problem Solving
    From airflow issues to multi-zone system design, solutions are built around how the property actually functions day to day.
  • Long-Term Comfort Focus
    The goal is not just getting systems running again, but helping improve efficiency, consistency, and overall reliability.
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Honest, No-Pressure Service

For homeowners, the focus is on responsive service, honest recommendations, and practical solutions that fit the property and budget. For multifamily and commercial clients, the team prioritizes organization, access coordination, preventive maintenance planning, and minimizing disruption in occupied buildings.

Whether it’s one home or multiple buildings, the goal is to make HVAC service easier to manage and more dependable long term.

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Licensed, Insured, and Built Around Professional Standards

Trust matters when someone is working on your heating and cooling systems—especially in occupied homes, apartment communities, and active construction projects. Advantage Service Group operates as a licensed Class A Mechanical contractor and follows a process built around professionalism, communication, and code-compliant workmanship. All projects are approached with attention to safety, system performance, and long-term reliability.