Flat Roof Replacement cost: Aliamanu / Salt Lakes / Foster Village vs East Honolulu (2026)
Flat roof replacement costs about the same in Aliamanu / Salt Lakes / Foster Village and East Honolulu in 2026 — roughly $11,300 in each.
Aliamanu / Salt Lakes / Foster Village HI
Typically around $11,300
East Honolulu HI
Typically around $11,300
Aliamanu / Salt Lakes / Foster Village vs East Honolulu: full breakdown
| Factor | Aliamanu / Salt Lakes / Foster Village | East Honolulu |
|---|---|---|
| Typical 2026 cost | $11,300 | $11,300 |
| Estimated range | $5,800–$16,800 | $5,800–$16,800 |
| Labor index (vs US) | ×1.08 | ×1.08 |
| Climate zone | Hot | Hot |
| Climate factor | ×1.02 | ×1.02 |
| Local permit | $325 | $325 |
| Labor share | $6,800 | $6,800 |
| Materials/equipment | $4,500 | $4,500 |
All figures are 2026 localized planning estimates for flat roof replacement — get an actual quote before you commit.
A wash — choose on quality, not city
The two metros are effectively a wash for flat roof replacement — pick on contractor quality and timing, not location.
Flat roof replacement by type: Aliamanu / Salt Lakes / Foster Village vs East Honolulu
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 | Aliamanu / Salt Lakes / Foster Village | East Honolulu |
|---|---|---|
| EPDM (rubber) | $5,800–$13,500 | $5,800–$13,500 |
| TPO | $6,900–$14,600 | $6,900–$14,600 |
| PVC | $8,000–$16,800 | $8,000–$16,800 |
| Modified bitumen | $5,800–$12,400 | $5,800–$12,400 |
| Built-up roofing (BUR) | $7,450–$15,700 | $7,450–$15,700 |
These are 2026 planning figures for flat roof replacement, localized to each city — not formal quotes.
Flat roof replacement by roof size: Aliamanu / Salt Lakes / Foster Village vs East Honolulu
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 | Aliamanu / Salt Lakes / Foster Village | East Honolulu |
|---|---|---|
| 1,000 sq ft (10 squares) | $4,700–$9,650 | $4,700–$9,650 |
| 1,500 sq ft (15 squares) | $5,800–$12,400 | $5,800–$12,400 |
| 2,000 sq ft (20 squares) | $6,900–$15,700 | $6,900–$15,700 |
| 2,500 sq ft (25 squares) | $8,550–$17,900 | $8,550–$17,900 |
| 3,000+ sq ft (30 squares) | $10,200–$21,200 | $10,200–$21,200 |
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
The material dictates the season (shingles need warmth to seal), but the price is set by demand, and demand spikes after every regional hailstorm. Booking your spot in the quiet winter months for spring work avoids that spike.
Where does a smart roofing budget go in 2026?
A roofing quote can hide a lot behind a single number — whether it's a true tear-off, the shingle grade, and what's under the surface. Here's how our editors sort through it.
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
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 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.
Full tear-off, architectural shingles and a written deck-repair rate protect you from the two big risks — hidden rot and warranty gaps. The lowest storm-season bid is rarely the cheapest over the roof's life.
Aliamanu / Salt Lakes / Foster Village vs East Honolulu
Is flat roof replacement cheaper in Aliamanu / Salt Lakes / Foster Village or East Honolulu?
There's no meaningful difference: flat roof replacement runs about $11,300 in both places.
Why does flat roof replacement cost more in East Honolulu than Aliamanu / Salt Lakes / Foster Village?
Labor rates explain most of it — 1.08 in East Honolulu vs 1.08 in Aliamanu / Salt Lakes / Foster Village. A hot climate versus hot accounts for the rest.
How much is flat roof replacement in Aliamanu / Salt Lakes / Foster Village, HI?
In Aliamanu / Salt Lakes / Foster Village, flat roof replacement typically runs $5,800–$16,800 in 2026, with most homeowners paying around $11,300.
When is the cheapest time to buy flat roof replacement — and does it differ by city?
No, the seasonal pattern is the same in Aliamanu / Salt Lakes / Foster Village and East Honolulu: book during Late spring to early fall (dry, 45–85°F) for about 5–10% in savings. Mid-winter and the post-storm rush is the priciest stretch in both cities, mostly due to emergency replacements.
Should I choose where to live based on flat roof replacement cost?
Not on this basis — Aliamanu / Salt Lakes / Foster Village and East Honolulu cost about the same. Weigh contractor quality, scope, equipment tier and timing instead.
Compare flat roof replacement in other cities
Updated June 2026 · By Serhat Özçelik