Quick answer: A typical Minnesota asphalt-shingle roof replacement in 2026 runs $450–$800 per square (100 sq ft of roof surface) installed — so most single-family homes land between $9,000 and $25,000 depending on size, pitch, tear-off, and complexity. New-construction roofing on an open deck costs less per square than a tear-off.
How Roof Size Really Works
Your roof is measured in "squares" — one square is 100 square feet of roof surface. Surface area is always larger than your home's footprint because of pitch. A 1,500 sq ft footprint under a medium 6/12 pitch carries roughly 18–20 squares after waste; the same footprint under a steep 10/12 roof carries 22–24. Steeper roofs also cost more per square because of staging and safety time.
What a Complete Reroof Includes
- Tear-off and disposal of existing shingles
- Deck inspection — plus repair of rot or delamination (usually a per-sheet allowance)
- Ice-and-water barrier at eaves and valleys (Minnesota code requires coverage past the warm wall line)
- Synthetic underlayment over the remaining deck
- Shingles, ridge cap, starter, and proper fastening schedule
- Flashing: drip edge, step flashing, chimney and wall details
- Ventilation review — intake and exhaust balanced for your attic
Cost Factors Ranked
| Factor | Impact | Why |
|---|---|---|
| Roof size (squares) | Largest | Direct multiplier on everything |
| Pitch / stories | High | Staging, safety, and speed |
| Tear-off layers | Moderate | Labor + disposal per layer |
| Complexity (valleys, dormers, skylights) | Moderate | Detail work and flashing time |
| Deck condition | Variable | Rot repair is priced per sheet — get the allowance in writing |
| Shingle grade | Moderate | Architectural is standard; designer lines add cost |
Why Ice Dams Change the Spec Here
Minnesota's freeze-thaw cycles push meltwater under shingles at the eaves. Code requires ice-and-water membrane extending past the exterior wall line — on low-slope roofs and deep overhangs, that can mean two full courses. A cheap bid that skimps here costs you a ceiling stain in February. Ask every bidder exactly how far their ice barrier runs.
Repair or Replace?
If your roof is under 15 years old with isolated damage, repair is usually right. If shingles are cupping, granules fill the gutters, or the roof is 20+ years old, replacement wins — repairs on a dying roof are money down the drain. We'll tell you which side of the line you're on, in writing, for free.
Ballpark your project with the roofing calculator, then book a free on-site look.
Frequently Asked Questions
Most single-family reroofs land between $9,000 and $25,000 installed — roughly $450–$800 per square depending on pitch, tear-off, and complexity.
Overlays are legal in limited cases but almost never smart in Minnesota — you can't inspect the deck, warranties suffer, and freeze-thaw shortens the second layer's life. We recommend full tear-off.
Late spring through fall is ideal for shingle sealing, but quality crews roof successfully in shoulder seasons. Book earlier than you think — good calendars fill by midsummer.
For storm damage (hail, wind), often yes, subject to your policy and deductible. We document damage and scope for your claim and work with your adjuster — no storm-chaser tactics.
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