Flat Roof Replacement cost: Fond du Lac vs Madison (2026)
The two metros aren't quite in sync on flat roof replacement: Fond du Lac sits 5% below Madison, or roughly $9,900 versus $10,350 — about $450 apart.
Fond du Lac WI
Lower costTypically around $9,900
Madison WI
Typically around $10,350
Fond du Lac vs Madison: full breakdown
| Factor | Fond du Lac | Madison |
|---|---|---|
| Typical 2026 cost | $9,900 | $10,350 |
| Estimated range | $5,050–$14,700 | $5,300–$15,350 |
| Labor index (vs US) | ×0.93 | ×0.98 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.03 | ×1.03 |
| Local permit | $250 | $275 |
| Labor share | $5,950 | $6,200 |
| Materials/equipment | $3,950 | $4,150 |
Treat these as 2026 localized estimates for flat roof replacement, not quotes from a contractor.
Is the gap worth worrying about?
At 5%, this gap is small enough that it's usually swallowed by normal quote-to-quote variation for flat roof replacement — focus on the contractor, not the city.
Flat roof replacement by type: Fond du Lac vs Madison
Each flat roof replacement option, priced separately for both metros — the same local labor, climate and permit adjustments applied per city, so you can compare like for like.
| Type | Fond du Lac | Madison |
|---|---|---|
| EPDM (rubber) | $5,050–$11,800 | $5,300–$12,350 |
| TPO | $6,000–$12,750 | $6,300–$13,350 |
| PVC | $7,000–$14,700 | $7,300–$15,350 |
| Modified bitumen | $5,050–$10,850 | $5,300–$11,350 |
| Built-up roofing (BUR) | $6,500–$13,700 | $6,800–$14,350 |
All figures are 2026 localized planning estimates for flat roof replacement — get an actual quote before you commit.
Flat roof replacement by roof size: Fond du Lac vs Madison
Flat and low-slope roofs are priced per square (100 sq ft) and run about $3–$11 per sq ft installed, depending on the membrane. The roof area is close to the footprint since there's little pitch.
| Size | Fond du Lac | Madison |
|---|---|---|
| 1,000 sq ft (10 squares) | $4,100–$8,450 | $4,300–$8,800 |
| 1,500 sq ft (15 squares) | $5,050–$10,850 | $5,300–$11,350 |
| 2,000 sq ft (20 squares) | $6,000–$13,700 | $6,300–$14,350 |
| 2,500 sq ft (25 squares) | $7,450–$15,650 | $7,800–$16,350 |
| 3,000+ sq ft (30 squares) | $8,900–$18,550 | $9,300–$19,400 |
These are 2026 planning figures for flat roof replacement, localized to each city — not formal quotes.
Cheapest time for flat roof replacement in either city
Roofers are slammed the moment warm weather returns, especially after storms. Get on their books in the off-season for a spring job and you're negotiating with an empty calendar, not a waiting list.
Where does a smart roofing budget go in 2026?
The real cost of a roof comes down to three decisions: tear-off or overlay, which shingle tier, and what condition the decking is in. Our editors weigh in.
The do-it-right case
Skipping the tear-off means burying whatever's failing underneath, and a second layer bakes the shingles from below until they curl early. Doing it properly means stripping to the deck, then paying for real underlayment, flashing and airflow — the work that sets how long the roof lasts, not just how it looks the first week.
The value case
Architectural shingles hit the sweet spot — far more durable than 3-tab for a modest premium, and far cheaper than metal or tile. For most homes they're the right default.
The risk case
Budget for the unknown: rotten decking found at tear-off is the most common surprise. Get the per-sheet repair rate in writing up front so a "cheap" bid doesn't balloon mid-job.
A roof's real cost shows up over its lifespan, not on install day. Tear-off, a documented repair rate and a mid-tier shingle grade are what keep that lifetime cost in check.
Fond du Lac vs Madison
Is flat roof replacement cheaper in Fond du Lac or Madison?
Fond du Lac comes out ahead here, at roughly $9,900 for flat roof replacement compared with $10,350 in Madison — a 5% ($450) gap as of 2026.
Why does flat roof replacement cost more in Madison than Fond du Lac?
Madison's higher labor index (0.98 vs 0.93 in Fond du Lac) is the biggest factor, with the cold/cold climate split and permit fee differences playing a smaller role.
How much is flat roof replacement in Fond du Lac, WI?
Expect to pay $5,050 to $14,700 for flat roof replacement in Fond du Lac in 2026, averaging around $9,900.
When is the cheapest time to buy flat roof replacement — and does it differ by city?
Timing doesn't change by city here — Late spring to early fall (dry, 45–85°F) is the cheapest window in both Fond du Lac and Madison, saving roughly 5–10%. Avoid mid-winter and the post-storm rush in either location, when emergency replacements push prices up.
Should I choose where to live based on flat roof replacement cost?
That would be a stretch. $450 is a one-time difference, not an ongoing one, and off-season buying plus apples-to-apples bids in Madison can close a good chunk of it. What matters more long-term is energy costs, climate and the condition of the home.
Compare flat roof replacement in other cities
Updated June 2026 · By Serhat Özçelik