Summer places, winter-ready
Cottage & Crawl Space Insulation in Traverse City, MI
Most cottage cold comes up through the floor.
- Free estimates after an on-site look
- Every area listed with material, thickness and R-value
- Roof leaks, wet framing and old wiring pointed out before we cover them
A Summer Cottage in a Zone 6 Winter
Cottage & Crawl Space Insulation covers the cottages and lake homes that ring Grand Traverse Bay, Lake Leelanau, Elk Lake and the inland lakes. Many were built for summer, on crawl spaces, piers or short block foundations with little or no insulation underneath. When owners start using them in fall, at the holidays or year-round, or leave them lightly heated all winter, the floors go cold and the pipes in the crawl space freeze.
Two approaches
If the crawl space can be closed off, we usually recommend sealing it: a heavy vapor barrier on the ground, sealed vents, and closed-cell foam on the walls and rim. That brings the space inside the house, keeps pipes warmer and keeps damp air out. If the cottage sits on piers or the crawl space must stay open, we spray closed-cell foam on the underside of the floor and around the rim, which insulates and seals the floor in one layer.
Why closed-cell
Closed-cell foam keeps humid summer air from condensing on cold surfaces and does not soak up water, which matters near the water. HomeGuide lists it at R-5 to R-7 per inch. Open-cell foam and fiberglass batts are poor choices under a floor or against block, because they let moisture through to cold surfaces and can sag or hold water.
Pipes and water
Frozen pipes are the most expensive winter problem at a cottage. Bringing the crawl space inside the insulated shell is the most reliable way to protect pipes that run through it. Before we seal anything, we look for standing water, plumbing leaks and wet framing and recommend fixing them first.
Scheduling
We plan cottage work around your use. Foam needs the building empty for at least 24 hours, per HomeGuide, and needs warm enough conditions to cure, so late summer and fall are popular. Off-season work is possible with temporary heat.
Rebates
Traverse City Light & Power lists $50 per 100 square feet of crawl space wall and $20 per 100 square feet of floor insulation in its 2026 program; Consumers Energy lists a crawl space rebate for its customers.
Call (231) 640-5435 or book a visit and we will look under your cottage. Get a free estimate
What This Covers
Parts of a cottage job.
Sealed crawl spaces
Vapor barrier, sealed vents and closed-cell foam on walls and rim.
Under-floor foam
Closed cell between joists where the space stays open.
Rim joists
Sealing and insulating the top of the foundation.
Pier-built cottages
Foam under the floor and skirting options discussed.
Access hatches
Insulated, weatherstripped hatches.
Published Crawl Space Costs
| Job | Range and source |
|---|---|
| Crawl space encapsulation | $3 to $10 per sq ft, $3,000 to $15,000 (HomeGuide) |
| Crawl space vapor barrier | $1,200 to $4,000 (HomeGuide) |
| Closed-cell on crawl space walls | $2 to $5 per sq ft (HomeGuide) |
| Crawl space, spray foam | $2,000 to $4,000 (HomeGuide); $1,000 to $5,900 (Fixr) |
| Crawl space vent sealing | $150 to $450 (HomeGuide) |
| Rim joists, spray foam | $2,000 to $2,500 (HomeGuide) |
National ranges from HomeGuide (2026) and Fixr (2025). Crawl height, wall area, ground condition, travel and any water issues change the cost. Once we have measured, the written estimate sets the price.
How It Works
1. Inspect
Water, plumbing, pests, framing and existing insulation checked.
2. Pick an approach
Sealed crawl space or insulated floor, based on the building.
3. Prep
Debris and failed insulation removed; ground leveled for liner.
4. Seal and insulate
Liner, wall or floor foam, rim foam and vent sealing.
Why Choose Us for Cottage & Crawl Space Insulation
Pipes protected
We design around where the plumbing runs.
Water first
We will not seal in a water problem.
Scheduled around you
Work fits the cottage calendar.
Cottage & Crawl Space Insulation Questions
Can a summer cottage be made usable in winter?
Often, yes. The floor or crawl space and rim come first, then the attic, then walls if needed.
Should I seal or vent my crawl space?
If it can be closed off, sealing and insulating the walls usually works better. Pier-built cottages get foam under the floor instead.
Will this stop my pipes from freezing?
A sealed, insulated crawl space stays much closer to house temperature, which is the most reliable protection for pipes in it.
Does spray foam stop mold under a cottage?
Closed-cell foam keeps damp air off cold surfaces, which removes the condensation mold needs. Existing mold and water problems are handled first.
Cottage & Crawl Space Insulation Service Areas
- Spray Foam Insulation in Traverse City, MI
- Spray Foam Insulation in Garfield Township, MI
- Spray Foam Insulation in East Bay Township, MI
- Spray Foam Insulation in Peninsula Township, MI
- Spray Foam Insulation in Elmwood Township, MI
- Spray Foam Insulation in Acme Township, MI
- Spray Foam Insulation in Long Lake Township, MI
- Spray Foam Insulation in Blair Township, MI
- Spray Foam Insulation in Elk Rapids, MI
- Spray Foam Insulation in Suttons Bay, MI
- Spray Foam Insulation in Leland, MI
- Spray Foam Insulation in Interlochen, MI
- Spray Foam Insulation in Kingsley, MI
- Spray Foam Insulation in Kalkaska, MI
Get a Cottage & Crawl Space Insulation Estimate
Free cottage checks around Traverse City.