Insulation Contractor in Juneau, AK
A well-insulated Juneau home costs meaningfully less to heat — and holds up better against the moisture conditions that compromise insulation performance in high-humidity climates. If your heating bills have been climbing or your home never quite gets comfortable, the insulation is usually part of the answer.
Why Insulation in Southeast Alaska Is a Different Conversation
Most insulation products are spec'd and marketed for dry climates. What works well in Phoenix or Denver performs differently in a rainforest environment with persistent humidity, heavy precipitation, and significant temperature swings. Some insulation products absorb moisture, lose R-value over time, and create conditions that accelerate the rot and mold problems they were never designed to prevent.
Glacier Bear has 22 years of construction experience in Southeast Alaska — which means we know which products hold up in this climate and which ones don't, how vapor barrier sequencing in wall assemblies needs to work here, and how insulation interacts with the moisture management systems in your home. That's not something you get from a national insulation guide.
We'll give you an honest recommendation at the estimate stage — not a product upsell.
Where Heat Escapes in Older Juneau Homes
Most heat loss in Juneau homes comes from a small number of fixable locations. Homes built before modern energy codes — which describes a large portion of Juneau's housing stock — commonly have:
- Attic bypasses — gaps where interior walls meet the attic floor, allowing conditioned air to escape directly into unconditioned space
- Under-insulated attic floors — the single most common insulation gap in older homes, and the highest-return fix in most cases
- Rim joist gaps — the perimeter of your floor system where the framing meets the foundation, often uninsulated and exposed to outside air
- Under-insulated exterior walls — particularly in homes built before the 1980s, where wall cavity insulation was minimal or nonexistent
- Uninsulated or poorly insulated floors — especially over crawl spaces, where cold air and ground moisture both work against the floor system
If your heating bill is higher than it should be, one or more of these is almost certainly contributing.
Insulation Services We Handle in Juneau
Attic Insulation
The highest-return insulation investment in most Juneau homes. We assess your current attic insulation level, identify bypasses and gaps, and install to a spec that makes a measurable difference in heating performance.
Wall Insulation
Exterior wall insulation for older homes with under-insulated cavities — including blown-in options that don't require full wall removal in every situation.
Floor Insulation
Floor insulation over crawl spaces and unheated spaces, installed in coordination with vapor barrier work to address both thermal performance and moisture management together.
Crawl Space Insulation
Crawl space insulation is closely connected to vapor barrier and encapsulation work. We cover the full crawl space scope — insulation, vapor barrier, and moisture management — on the crawl space page.
Glacier Bear Construction is a BBB accredited, family-owned contractor in Juneau, Alaska. Owner Kinnon Scharen holds Professional License
#216211
and brings 22 years of Southeast Alaska construction experience to every insulation project — including a thorough understanding of how moisture and climate affect insulation performance in this region. Learn more about the team on our
About Us page.
Find Out Where Your Home Is Losing Heat
Free estimate, honest recommendation, and a crew that knows what Southeast Alaska's climate actually demands from a home's insulation system.
Call or text (907) 635-0756, email kscharen@glacierbearconstruction.com, or use the contact form.
What Juneau Homeowners Ask About Insulation
Who does insulation installation in Juneau, AK?
Glacier Bear Construction handles attic, wall, and floor insulation installation in Juneau and across Southeast Alaska, with product selection and installation methods appropriate for the region's high-humidity climate.
How much insulation do I need in Alaska?
Alaska's climate zone requirements are among the most demanding in the country. Attic insulation in Juneau typically warrants R-49 to R-60 depending on your existing conditions and home configuration. The right answer for your specific home comes out of the estimate conversation — we'll assess what's there and what's needed before recommending anything.
What type of insulation works best in Southeast Alaska's climate?
Moisture resistance is the critical variable in Southeast Alaska. Closed-cell spray foam and certain rigid board products perform well in high-humidity applications. Fiberglass batts can work in properly detailed wall assemblies but require careful vapor barrier management. We'll walk through the options and tradeoffs at the estimate stage.
Can insulation be added without tearing out walls?
In many cases, yes. Blown-in insulation can be installed through small access holes in exterior wall cavities without full wall removal. Attic and floor insulation are typically accessible without major disruption. We'll tell you exactly what's involved for your specific situation before any work begins.
