Beaverton, OR Flat Roof Replacement Cost (2026): $5,650

Refine your estimate

Tune it to your home to narrow the flat roof replacement range.

Roof / home size2,000 sq ft

800 sq ft4,500 sq ft

Quality tier

Conditions & add-ons

Your adjusted estimate

$5,650 – $16,400

Most likely $11,050

Key takeaways for Beaverton

A flat roof replacement in Beaverton typically runs $5,650–$16,400, with most homeowners paying about $11,050 — about 10% above the national average.
Local labor in Beaverton is +9% relative to the national average, which is what pushes this estimate away from the countrywide number.
The estimate already covers the Roofing permit — roughly $300 in Beaverton.
Expect 15–30 years of service, so planning a replacement beats a full-price emergency call.
Skip peak pricing by scheduling in Late spring to early fall (dry, 45–85°F); the shift is worth about 5–10%.

Price breakdown

What goes into the price in Beaverton

A typical Beaverton flat roof replacement of $11,050 breaks down roughly like this — materials priced near the national level, labor set by local rates.

Line item	Beaverton 2026 range
Materials & equipmentEquipment and supplies, which price out close to the national baseline.	$2,150 – $6,450
Labor & installationRemoval, install and startup labor — the line most affected by where you live.	$3,200 – $9,650
Permit & feesRoofing permit cost, adjusted to this city's rate.	$300
Total installed cost	$5,650 – $16,400

Split from the Beaverton estimate using a 60% local-labor share; line items sum to the total.

Local factors

Why flat roof replacement costs what it does in Beaverton

Labor in Beaverton runs about 9% above the national average (based on price levels for the Portland-Vancouver-Hillsboro metro area), which raises the installed price.
Budget about $300 for the local Roofing permit in Beaverton — already folded into the estimate above.

Wind-driven spring rain tests every flashing joint and valley seam, flat roof replacement should balance moisture resistance and temperature swings, since quality underlayment and ventilation protect the roof across all seasons. Ask about the shingle's wind rating and impact class if hail passes through Oregon, then let balanced ventilation handle the seasonal swings underneath.

By size

Flat Roof Replacement cost by roof size in Beaverton

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.

roof size	Beaverton 2026 range
1,000 sq ft (10 squares)	$4,600 – $9,400
1,500 sq ft (15 squares)	$5,650 – $12,100
2,000 sq ft (20 squares)	$6,750 – $15,300
2,500 sq ft (25 squares)	$8,350 – $17,450
3,000+ sq ft (30 squares)	$9,950 – $20,700

National size ranges localized to Beaverton labor and climate.

By type

Flat Roof Replacement cost by type in Beaverton

EPDM (rubber)	$5,650 – $13,150
TPO	$6,700 – $14,200
PVC	$7,800 – $16,350
Modified bitumen	$5,650 – $12,050
Built-up roofing (BUR)	$7,250 – $15,300

Adjusted to Beaverton from national type-level ranges.

By efficiency

Flat Roof Replacement cost by efficiency in Beaverton

Flat roofs are defined by their membrane. EPDM (rubber) is the budget standard; TPO is the popular reflective 'cool roof' choice; PVC and modified bitumen suit grease or high-traffic settings.

EPDM rubber membraneLowest-cost; durable black rubber; ~20–25 yr	$5,650 – $12,100
TPO (reflective single-ply)Energy-saving white 'cool roof'; the mainstream pick	$6,750 – $14,250
PVC / modified bitumenBest for chemical/grease exposure or layered systems	$7,800 – $16,400

Where the money goes

Labor vs. materials in Beaverton

Labor (60%)

≈ $6,650

Install crew, removal, permit & startup — the part Beaverton rates move most.

Materials (40%)

≈ $4,400

Equipment & materials — priced closer to the national level.

Split based on a typical $11,050 Beaverton project; your mix varies with scope.

Skilled installers in the Portland-Vancouver-Hillsboro area earn about $34.9/hr (12% above the US average, per BLS metro wage data) — the local wage is what moves the labor half of your flat roof replacement cost.

Methodology

How we estimate it

National range	$5,000 – $15,000
Beaverton labor adjustment	×1.07
mixed climate factor	×1
Local permit	+$300
Beaverton estimate	$5,650 – $16,400

Typical 2026

$11,050

Range

$5,650 – $16,400

Climate

mixed

Local permit

$300

Promo prices vs. the real cost

A headline roofing price means little without a defined scope — these are the numbers marketing tends to lean on:

Financing offers$0 down · low APR
Free roof inspection$0 — it's a sales visit
Per-square teaser priceadvertised low; varies by pitch & material

Hidden costs

Additional flat roof replacement costs to budget for

Expect a few of these rather than all. Which ones apply tracks with access, hidden damage and local code.

Tear-off & disposal of old membrane	$1,000 – $3,000
Decking / substrate repairFlat roofs trap water, so rot is common	$500 – $3,000
New rigid insulation board (R-value)	$1,000 – $4,000
Drains, scuppers & tapered slope correctionTo stop standing water (ponding)	$500 – $3,000
Flashing & parapet wall detailing	$400 – $2,000
Permit	$150 – $500

Typical national add-on ranges; confirm locally during your quote.

What's included

Flashing, drains, labor and permit
Insulation board and fasteners/adhesive
Tear-off of the old membrane
Membrane material (TPO, EPDM or modified bitumen)

What affects the cost

Insulation R-value added
Roof area and number of penetrations/drains
Parapet and edge-metal detailing
Membrane type and thickness (mil)

Ways to save on flat roof replacement in Beaverton

Add insulation now to cut energy bills
Address ponding/drainage to extend membrane life
TPO offers a good cost-to-performance balance
Mechanically-fastened systems install faster

Lifespan

How long does flat roof replacement last in Beaverton?

Expected lifespan

15–30 years

EPDM and TPO last ~20–25 years; PVC up to 30. Standing water shortens any flat-roof membrane.

Annual maintenance

$150–$500/yr

Twice-yearly inspections to clear drains, reseal seams, and catch ponding before it causes leaks.

When to replace

Signs you need flat roof replacement in Beaverton

Standing water (ponding) that lingers more than 48 hours after rain
Blisters, bubbles, or splits in the membrane
Seams or flashing lifting, cracking, or pulling apart
Interior water stains, drips, or a sagging deck
The membrane is brittle, cracked, or shrinking with age
Repeated patch repairs that no longer hold

Decision

Repair or replace in Beaverton?

Spot repairs and recoating can buy years on a flat roof, but once the membrane is widely failing or the deck below has gotten wet, full replacement is the durable fix.

Repair if…

Leaks trace to isolated seams, flashing, or a single puncture
The membrane is under ~15 years old and otherwise sound
A reflective recoat can extend the existing membrane's life

Replace if…

The membrane is brittle, blistered, or splitting across the roof
Chronic ponding has saturated the insulation or decking
The roof is past 20 years and leaking in multiple spots

Cost calculator

Roof cost by material in Beaverton, OR

Roofs are priced per square (100 sq ft). An average US home is about 20 squares. Prices are localized to Beaverton, OR labor; the last column is what each material costs per year of life — often the real deciding number.

Roof size (squares · 100 sq ft each)

Material	Lifespan	Total (20 sq)	Per year of life
Architectural asphalt shingle The default US roof — best cost-per-year for most homes. Wind: up to 130 mph.	25–30 yr	$7,500–$12,850	$350/yr
Flat / low-slope (TPO, EPDM)This page For flat and low-slope roofs; single-ply membrane over the deck. Wind: membrane, fully adhered.	20–30 yr	$8,550–$17,100	$500/yr
Standing-seam metal High upfront cost but the lowest cost-per-year; sheds snow, resists hail and fire. Wind: 140+ mph.	40–70 yr	$19,250–$34,250	$500/yr
Clay / concrete tile Longest-lasting; needs a structure rated for the extra weight. Wind: 125+ mph.	50–75 yr	$21,400–$42,800	$500/yr

Per-square ranges are national installed benchmarks localized to Beaverton, OR labor; lifespan and wind ratings are manufacturer / ASTM figures. A research estimate, not a quote.

Best time to buy

Cheapest time for flat roof replacement in Beaverton

Storm season pushes demand — and prices — up through summer, since shingles need warm, dry weather to bond correctly. Roofers with open winter calendars will often deal to fill a spring slot.

Best window

Late spring to early fall (dry, 45–85°F)

Avoid

Mid-winter and the post-storm rush

Off-peak savings

5–10%

Lock in a spring appointment while roofers are quiet in winter — and if a hailstorm just hit your area, wait a few weeks before calling, since that's peak-price season.

Reading your quotes

Why flat roof replacement quotes vary — and how to compare them fairly

Price differences on an identical job trace back to the assumptions each contractor made; understand those and the 'expensive' bid often turns out fair.

Why a quote looks high (or low)

A storm-chaser's lowball often skips flashing, ice-and-water shield or a real warranty.
One bid is a full tear-off; another lays new shingles over the old roof — cheaper now, costlier later.
Deck repair, underlayment grade and ventilation may or may not be in the price.

Get an apples-to-apples bid

Verify the contractor is licensed, insured and local, with recent references.
Confirm underlayment, ice-and-water shield, flashing and ventilation are included.
Compare the workmanship warranty, not just the material warranty.
Specify tear-off vs. overlay so all bids match.

Hiring

Questions to ask Beaverton Roofing pros

The only honest way to compare is to hold every quote to one checklist. Start with these.

1Is a full tear-off included, or are you laying over the existing roof?
2How will you handle deck repairs or rotten sheathing found after tear-off, and at what rate?
3What underlayment, ice-and-water shield, and ventilation are included?
4Are you licensed and insured here, and can you share recent local references?
5What's the workmanship warranty, and how does it interact with the material warranty?

FAQ

Flat Roof Replacement in Beaverton

How much does flat roof replacement cost in Beaverton, OR?

Most Beaverton homeowners pay around $11,050 for flat roof replacement, though 2026 quotes stretch from $5,650 to $16,400. Local labor, the mixed climate and permit fees are all baked into that number.

Is flat roof replacement more expensive in Beaverton than average?

Put Beaverton next to the national picture and it lands about 10% higher than the national average; the labor index of 1.07 explains the bulk of it. and the local Roofing permit costs about $300.

Do I need a permit for flat roof replacement in Beaverton?

A Roofing permit is standard in Beaverton for this kind of work, at roughly $300. You won't need to add it on top of the estimate above — it's already there.

What affects flat roof replacement cost the most?

Replacing a flat or low-slope roof using membrane systems such as TPO, EPDM or modified bitumen. Where two homes diverge is in the details below. What should you watch? Equipment or material grade, the home's size and complexity, local labor rates, and your mixed climate zone — in roughly that order.

Editors' roundtable

Where does a smart roofing budget go in 2026?

Roofing budgets swing on decisions most homeowners don't think to ask about — overlay vs. tear-off, shingle tier, deck condition. Our editors break down each one.

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 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.

Our take

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.

Editorial analysis by Serhat Özçelik, reviewed by Costadia Editorial. These are our own cost perspectives, not third-party endorsements.

How we calculated this estimate

We start with 2026 national flat roof replacement ranges compiled from contractor-pricing sources (Angi, HomeGuide, Fixr and EnergySage averages), then localize them to Beaverton using the BLS metro wage data labor index (×1.07 here), the IECC mixed-climate factor (×1) and a typical local permit fee (≈$300). Federal incentive details reference the IRS Inflation Reduction Act (25C/25D) and DSIRE.

This is a planning estimate, not a quote.Actual prices vary with your home's condition, equipment grade and contractor — always confirm with licensed local pros before budgeting.

By Serhat ÖzçelikReviewed by Costadia EditorialUpdated June 2026Sources: BLS · BEA · IECC · IRS · DSIRE · industry cost data

References & data sources

Our Beaverton flat roof replacement estimate is built from these primary, mostly government sources — not a single aggregator.

Occupational Employment & Wage Statistics (metro wages) — U.S. Bureau of Labor Statistics.Metro-level trade wages behind each city's labor index.
Regional Price Parities (state & metro) — U.S. Bureau of Economic Analysis.Regional price levels used where metro wage data is unavailable.
IECC Climate Zones — U.S. DOE — Building Energy Codes Program.Climate-zone factors applied to weather-sensitive projects.
Home Energy Tax Credits (25C / 25D) — Internal Revenue Service.Federal rebate and tax-credit figures for eligible upgrades.
Database of State Incentives for Renewables & Efficiency — DSIRE — NC State University.State and utility incentive programs by ZIP code.