Flat Roof Replacement cost: Concord vs Dover (2026)
Flat roof replacement costs about the same in Concord and Dover in 2026 — roughly $11,100 in each.
Concord NH
Typically around $11,100
Dover NH
Typically around $11,100
Concord vs Dover: full breakdown
| Factor | Concord | Dover |
|---|---|---|
| Typical 2026 cost | $11,100 | $11,100 |
| Estimated range | $5,700–$16,500 | $5,700–$16,500 |
| Labor index (vs US) | ×1.05 | ×1.05 |
| Climate zone | Cold | Cold |
| Climate factor | ×1.03 | ×1.03 |
| Local permit | $300 | $300 |
| Labor share | $6,650 | $6,650 |
| Materials/equipment | $4,450 | $4,450 |
These are 2026 planning figures for flat roof replacement, localized to each city — not formal quotes.
No real cost edge either way
With no real price gap on flat roof replacement, the choice comes down to contractor quality and timing, not which city you're in.
Flat roof replacement by type: Concord vs Dover
We localize each flat roof replacement type separately for both metros, applying the same labor, climate and permit adjustments each time, so you're comparing like for like.
| Type | Concord | Dover |
|---|---|---|
| EPDM (rubber) | $5,700–$13,250 | $5,700–$13,250 |
| TPO | $6,800–$14,350 | $6,800–$14,350 |
| PVC | $7,850–$16,500 | $7,850–$16,500 |
| Modified bitumen | $5,700–$12,150 | $5,700–$12,150 |
| Built-up roofing (BUR) | $7,300–$15,400 | $7,300–$15,400 |
All figures are 2026 localized planning estimates for flat roof replacement — get an actual quote before you commit.
Flat roof replacement by roof size: Concord vs Dover
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 | Concord | Dover |
|---|---|---|
| 1,000 sq ft (10 squares) | $4,600–$9,500 | $4,600–$9,500 |
| 1,500 sq ft (15 squares) | $5,700–$12,150 | $5,700–$12,150 |
| 2,000 sq ft (20 squares) | $6,800–$15,400 | $6,800–$15,400 |
| 2,500 sq ft (25 squares) | $8,400–$17,550 | $8,400–$17,550 |
| 3,000+ sq ft (30 squares) | $10,000–$20,800 | $10,000–$20,800 |
Flat roof replacement numbers here are 2026 planning ranges, adjusted per city — useful for budgeting, not a substitute for an actual quote.
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?
Tear-off vs. overlay, shingle tier and what's hidden under the deck decide the real number. Our editors on the trade-offs.
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.
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.
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.
Concord vs Dover
Is flat roof replacement cheaper in Concord or Dover?
Not really — both cities land at almost the same number for flat roof replacement, around $11,100 each.
Why does flat roof replacement cost more in Dover than Concord?
Dover's higher labor index (1.05 vs 1.05 in Concord) is the biggest factor, with the cold/cold climate split playing a smaller role.
How much is flat roof replacement in Concord, NH?
Expect to pay $5,700 to $16,500 for flat roof replacement in Concord in 2026, averaging around $11,100.
When is the cheapest time to buy flat roof replacement — and does it differ by city?
The best window is the same in both Concord and Dover: Late spring to early fall (dry, 45–85°F), when demand drops and installers discount to keep crews busy — typically 5–10% off peak pricing. The most expensive time anywhere is an emergency replacement during mid-winter and the post-storm rush.
Should I choose where to live based on flat roof replacement cost?
No — the cost is essentially identical between Concord and Dover. Base the decision on the things that actually vary: contractor reputation, scope, equipment tier and timing.
Compare flat roof replacement in other cities
Updated June 2026 · By Serhat Özçelik