Loading...
Serving Superior, WI and surrounding areas. (715) 217-3037
Custom Superior Insulation serves Two Harbors, MN with spray foam insulation, blown-in attic insulation, crawl space insulation, and air sealing - we have been working on North Shore homes since 2018 and respond within 1 business day.
Two Harbors sits on the shore of Lake Superior, and the combination of lake humidity and deep winter freezes creates moisture and cold-penetration problems that standard insulation alone cannot solve - especially at the rim joist and crawl space level. Our spray foam insulation seals and insulates these vulnerable zones in one step, blocking both heat loss and vapor intrusion in wood-frame homes built for an earlier era.
Many homes in Two Harbors were built before 1960 with insulation standards from a time when heating fuel was cheap and energy codes did not exist. Blown-in cellulose or fiberglass fills every bay of an older attic completely - reaching irregular spaces around joists, blocking, and penetrations where batts leave gaps - and is the most practical upgrade for attics in this area without major demolition.
Ice dams are a known, recurring problem on North Shore homes because the lake keeps snow falling well into the season and temperatures swing around freezing for weeks at a time. Sealing the attic floor - around ceiling fixtures, plumbing stacks, and top plates - stops warm air from reaching the roof deck and starting the freeze-thaw cycle that damages shingles and pushes water into wall cavities.
Two Harbors homes with crawl spaces face persistent ground moisture from the lake environment, and frost penetration that reaches 4 to 5 feet underground in a hard winter. Properly insulating the crawl space walls or floor protects the wood framing from moisture and cold, and makes floors on the first level noticeably warmer through the long North Shore winter.
The moisture that comes off Lake Superior does not stop at the siding - it works through the soil and into unprotected crawl spaces, evaporating into the framing above. A heavy-duty vapor barrier sealed to the walls and footings stops that upward moisture movement, protects insulation performance, and reduces the musty air quality issues that Two Harbors homeowners sometimes notice in older homes with bare-earth crawl spaces.
Older homes in Two Harbors often have uninsulated or minimally insulated basement walls that lose heat to the cold ground all winter. Insulating the basement walls or rim joist keeps that level usable through Minnesota winters and stops the cold from transferring up through the floor into the living space above - a noticeable difference in homes where the first floor has always felt cold from November through April.
Two Harbors sits on the western shore of Lake Superior in Lake County, and the lake creates a microclimate that most insulation contractors working inland do not encounter. The lake holds moisture and temperature in a way that keeps Two Harbors wetter and foggier than nearby inland communities, while winter temperatures still drop well below zero for extended periods. Frost depth in Lake County regularly reaches 4 to 5 feet underground, which stresses foundation materials, heaves concrete, and drives cold through any uninsulated crawl space or basement wall. The combination of persistent lake moisture and deep-freeze winters means that insulation work here has to account for both thermal performance and vapor control at the same time - one without the other leaves real problems behind.
Most homes in Two Harbors were built before 1960, when the town was growing around the iron ore shipping industry. These older wood-frame homes were constructed to the standards of their time - minimal insulation in the attic, no insulation in crawl spaces or basement walls, and no attention to air sealing because the concept was not yet part of residential construction practice. After 60 to 100 winters, the original materials have settled, compressed, or in some cases simply disappeared. As the University of Minnesota Extension notes, ice dams - one of the most common and costly problems for older northern Minnesota homes - are primarily a result of heat loss through inadequate attic insulation and air sealing. In Two Harbors, that problem is compounded by the heavy lake-effect snow that builds up on roofs faster than it does 20 miles inland.
Our crew works throughout Two Harbors regularly, and we understand the local conditions that affect insulation work here. Two Harbors falls under Lake County for building permits, and we handle permit requirements before any work starts. The homes we work on here are primarily older wood-frame houses from the early to mid-1900s - the kind built when Two Harbors was a working iron ore port - and we know how to assess insulation needs in homes that have been through many decades of North Shore winters.
Highway 61 runs through Two Harbors as the North Shore Scenic Drive, connecting the town to Duluth to the southwest and to Gooseberry Falls State Park and beyond to the northeast. The residential neighborhoods sit inland from the lake, clustered around the historic downtown and spreading up the hillside above Agate Bay. The Two Harbors Light Station - Minnesota's oldest operating lighthouse, built in 1892 - and the historic Edna G tugboat at the harbor are landmarks every local knows. We serve homeowners throughout the city, from the neighborhoods near the ore docks to the quieter streets on the edges of town.
We also serve Esko, MN to the southwest and Duluth, MN, so projects along the North Shore and throughout the broader Lake Superior region are a regular part of our schedule.
Contact us by phone or through the form and describe what you are experiencing - cold floors, ice dams, high heating bills, or visible moisture. We respond within 1 business day and can typically schedule a site visit the same week.
A crew member visits your Two Harbors home and inspects the attic, crawl space, rim joists, and basement for heat loss and moisture issues. You receive a written estimate before any work starts - no cost surprises after the fact.
We pull any permits required by Lake County before the job begins, then complete the work in one to two days for most residential projects. Most homeowners can stay in the home during the job; closed-cell spray foam requires a 24-hour off-gas period in the treated area only.
Once the work is finished, we walk the completed areas with you, answer any questions, and confirm you are satisfied. We stand behind the work and will address anything that needs attention after the job is done.
We serve Two Harbors and Lake County - no travel fees, no vague pricing, just an honest assessment of what your home needs to handle North Shore winters.
(715) 217-3037Two Harbors is a city of about 3,600 people in Lake County, sitting directly on the western shore of Lake Superior roughly 25 miles northeast of Duluth along Highway 61. It is the county seat and the largest community in Lake County. The city grew up around iron ore shipping - the Duluth and Iron Range Railroad built facilities here in the 1880s to move iron ore from the Range to lake freighters, and the ore docks at Agate Bay still operate today. The Two Harbors Light Station - Minnesota's oldest operating lighthouse, built in 1892 - and the historic Edna G tugboat are landmarks right in town. The residential housing stock is primarily single-family wood-frame homes from the early to mid-1900s, with a high rate of owner-occupancy and modest home values typical of a small Lake County community.
The surrounding Lake County area is largely forest and lakes outside the city limits, with scattered rural properties and seasonal cabins. Two Harbors sits at the start of the North Shore Scenic Drive, which draws visitors heading toward Gooseberry Falls State Park and points further up the shore. For year-round residents, the city's location on Lake Superior means cooler summers, persistent moisture, and heavy snowfall driven by lake-effect systems - a distinct climate that shapes everything from how homes were built to how they need to be maintained today. Nearby communities include Duluth, MN to the southwest and Esko, MN further inland.
Call Custom Superior Insulation or submit a request online - we respond within 1 business day and make the drive to Two Harbors and Lake County.