Flat Roof Replacement cost: Brookfield vs Green Bay (2026)
Budget-wise, flat roof replacement in Brookfield ($11,100) runs 11% more than in Green Bay ($10,000), a roughly $1,100 spread.
Brookfield WI
Typically around $11,100
Green Bay WI
Lower costTypically around $10,000
Brookfield vs Green Bay: full breakdown
| Factor | Brookfield | Green Bay |
|---|---|---|
| Typical 2026 cost | $11,100 | $10,000 |
| Estimated range | $5,700–$16,500 | $5,100–$14,850 |
| Labor index (vs US) | ×1.05 | ×0.95 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.03 | ×1.03 |
| Local permit | $275 | $250 |
| Labor share | $6,650 | $6,000 |
| Materials/equipment | $4,450 | $4,000 |
Treat these as 2026 localized estimates for flat roof replacement, not quotes from a contractor.
Is the gap worth worrying about?
That's a real $1,100 difference (11%) on flat roof replacement — worth factoring in, though off-season timing and a tighter quote in Brookfield can narrow it.
Flat roof replacement by type: Brookfield vs Green Bay
Below, each flat roof replacement option is priced independently for both cities, with identical local labor, climate and permit logic applied — so the comparison holds up.
| Type | Brookfield | Green Bay |
|---|---|---|
| EPDM (rubber) | $5,700–$13,250 | $5,100–$11,950 |
| TPO | $6,750–$14,350 | $6,100–$12,900 |
| PVC | $7,850–$16,500 | $7,050–$14,850 |
| Modified bitumen | $5,700–$12,200 | $5,100–$10,950 |
| Built-up roofing (BUR) | $7,300–$15,400 | $6,600–$13,900 |
Treat these as 2026 localized estimates for flat roof replacement, not quotes from a contractor.
Flat roof replacement by roof size: Brookfield vs Green Bay
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 | Brookfield | Green Bay |
|---|---|---|
| 1,000 sq ft (10 squares) | $4,600–$9,450 | $4,150–$8,550 |
| 1,500 sq ft (15 squares) | $5,700–$12,200 | $5,100–$10,950 |
| 2,000 sq ft (20 squares) | $6,750–$15,400 | $6,100–$13,900 |
| 2,500 sq ft (25 squares) | $8,400–$17,600 | $7,550–$15,850 |
| 3,000+ sq ft (30 squares) | $10,000–$20,850 | $9,000–$18,750 |
Treat these as 2026 localized estimates for flat roof replacement, not quotes from a contractor.
What roofing pros earn in each metro
Labor is about 60% of a flat roof replacement bill, so local wages drive most of the gap. These are real metro hourly wages for skilled installers (BLS OEWS), not estimates.
Milwaukee-Waukesha metro · about 8% above the US average installer wage.
No BLS metro wage series for Green Bay; we use Wisconsin regional price parity instead.
Source: U.S. Bureau of Labor Statistics, OEWS metro wages for HVAC installers (used as a trade-labor index).
Cheapest time for flat roof replacement in either city
Shingles seal properly only in warm, dry conditions, which is exactly when everyone else wants a new roof too — especially right after a summer hailstorm. Lock in a late-fall or winter booking for a spring install and you skip that rush.
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 value case
For a typical home, the architectural shingle is the default that makes sense. It outlasts 3-tab by a wide margin at a modest premium, and it spares you the cost of metal or tile that most roofs never need to justify.
The do-it-right case
Pay for a full tear-off and quality underlayment, flashing and ventilation. An overlay saves money today but traps heat, voids some warranties and costs more at the next replacement.
The risk case
Nail down the per-sheet decking rate in writing before anyone climbs up. Soft or rotted plywood is the most common mid-job discovery, and without an agreed number the crew names the price after they've already found the damage — turning a cheap quote into an open tab.
Insist on tear-off over overlay, get the deck-repair rate in writing before work starts, and lean toward architectural shingles. Skipping any of the three tends to cost more later than it saves now.
Brookfield vs Green Bay
Is flat roof replacement cheaper in Brookfield or Green Bay?
Green Bay wins on price: flat roof replacement runs about $10,000 there versus $11,100 in Brookfield, a gap of roughly $1,100 (11%) as of 2026.
Why does flat roof replacement cost more in Brookfield than Green Bay?
Brookfield's higher labor index (1.05 vs 0.95 in Green Bay) 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 Brookfield, WI?
flat roof replacement in Brookfield runs $5,700–$16,500 as of 2026 — most jobs land near $11,100.
When is the cheapest time to buy flat roof replacement — and does it differ by city?
It doesn't vary by location — Late spring to early fall (dry, 45–85°F) is the discount window in both Brookfield and Green Bay (roughly 5–10% off), while mid-winter and the post-storm rush tends to be the most expensive in either city.
Should I choose where to live based on flat roof replacement cost?
Probably not. Yes, $1,100 is a real gap, but it's a one-time cost you can partly offset in Brookfield with off-season timing and tighter bids. Long-term factors like energy prices and home condition matter more than this one number.
Compare flat roof replacement in other cities
Updated June 2026 · By Serhat Özçelik