
Get it right while it is open
New Construction & Addition Insulation in Traverse City, MI
The cheapest time to insulate well is before the drywall goes up.
- 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
One Chance to Fill Open Walls
New Construction & Addition Insulation is for homeowners and builders putting up a new house, an addition or a gut remodel in the Traverse City area. While the walls, roof and rim are open, every cavity can be filled and sealed completely. Once the drywall is up, doing it right gets much harder and more expensive.
Foam in open walls
In open stud walls, open-cell foam fills the cavity completely, seals around wiring and boxes, and dampens sound. Closed-cell foam adds more R-value per inch and slows vapor, which helps in 2x4 walls, rim joists and anywhere space is tight. Fixr puts new-construction spray foam at $2.75 to $6.50 per square foot. Many new homes use closed cell at the rim and in vaulted roofs and open cell or other insulation in the walls.
Zone 6 requirements
Grand Traverse County is in Climate Zone 6A, one zone colder than southern Michigan, and your building department will tell you which code and R-values apply to your permit. We size foam thickness to meet those numbers and write them on the estimate so your inspector and your builder can see them.
Timing with other trades
Foam goes in after the electrician, plumber and HVAC installer have finished their rough-in and it has been inspected, and before drywall. We coordinate with your builder so the schedule does not slip.
Additions on older homes
An addition is a good time to fix the old house where it joins the new. We seal and insulate the connection, the rim of the old foundation where it is exposed, and any attic space the addition opens up.
Vaulted ceilings and lofts
New homes in the region often have vaulted great rooms and lofts. Closed-cell foam under the roof deck gives the most R-value in shallow rafters and seals the air leaks that would otherwise cause ice dams.
Call (231) 640-5435 or book a visit and we will price your new build or addition. Get a free estimate
What This Covers
New-build and addition work.
Open-cell walls
Full cavity fill and sound control.
Closed-cell walls and rims
Higher R per inch where space is tight.
Vaulted roofs
Closed cell under the deck to prevent ice dams.
Old-to-new connections
Sealing where an addition meets the house.
Bonus rooms over garages
Floors and kneewalls sealed and insulated.

Published Wall and New-Build Costs
| Job | Range and source |
|---|---|
| Exterior walls, blown-in | $1,900 to $7,800, $1.10 to $3.70 per sq ft (HomeGuide); $2,000 to $4,000 (Fixr) |
| Dense-pack cellulose | $1.60 to $4.20 per sq ft (HomeGuide) |
| Spray foam, existing walls | $3.15 to $7.50 per sq ft (Fixr) |
| Spray foam, new construction walls | $2.75 to $6.50 per sq ft (Fixr) |
| All exterior walls, spray foam | $4,000 to $10,000 (HomeGuide) |
| Fiberglass / cellulose, blown | $1.65 to $2.60 / $1.75 to $3.80 per sq ft (Fixr) |
National ranges from HomeGuide (2026) and Fixr (2025). Wall area, foam type, thickness and scheduling with other trades set the total. We work from your plans or a site visit, and the written estimate is the price.
How It Works
1. Review plans
We work from drawings or measure on site.
2. Quote to code
Foam type and thickness to meet your permit R-values.
3. Spray after rough-in
After inspections, before drywall.
4. Inspection-ready
Depths noted for the insulation inspection.

Why Choose Us for New Construction & Addition Insulation
Coordinated
We schedule around your builder.
Code-aware
Thickness set to meet your permit.
Documented
Depths written for the inspector.
New Construction & Addition Insulation Questions
Should I apply spray foam before or after wiring?
After. Wiring, plumbing and HVAC rough-in should be finished and inspected first.
Open cell or closed cell for a new house?
Many new homes use closed cell at the rim and in vaulted roofs and open cell or other materials in walls. We recommend based on your plans.
Do you work with builders?
Yes. We coordinate with the builder and inspector so insulation fits the schedule.
What R-value does my new home need?
Your building department sets that based on the code and Climate Zone 6A. We size foam to meet it.

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Get a New Construction & Addition Insulation Estimate
Free estimates for new builds and additions.