How Much Does Flat Roof Replacement Cost? (2026)
Flat Roof Replacement costs $6,000–$20,000 in the US in 2026, with most jobs landing near $11,000. Removal of the existing membrane and installation of a new single-ply TPO or EPDM roof with insulation board and sealed seams. Includes edge metal and drain reflashing.
Low, average and high
- Low end: $6,000 (simple job, basic materials)
- National average: $11,000
- High end: $20,000 (complex or premium)
What's included in flat roof replacement
Removal of the existing membrane and installation of a new single-ply TPO or EPDM roof with insulation board and sealed seams. Includes edge metal and drain reflashing. Typical time on site: 2 to 3 days.
What changes the price
- Membrane type TPO or EPDM
- Roof square footage
- Insulation thickness
- Drainage and ponding fixes
- Access and tear-off
Roofing labor runs about $24 per hour nationally and is usually 40-60% of a flat roof replacement quote; the rest is materials, permits and disposal.
Flat Roof Replacement cost by state (2026)
| State | Low | Average | High |
|---|---|---|---|
| Alabama | $5,388 | $9,878 | $17,960 |
| Alaska | $7,824 | $14,344 | $26,080 |
| Arizona | $6,072 | $11,132 | $20,240 |
| Arkansas | $5,256 | $9,636 | $17,520 |
| California | $7,452 | $13,662 | $24,840 |
| Colorado | $6,528 | $11,968 | $21,760 |
| Connecticut | $6,936 | $12,716 | $23,120 |
| Delaware | $6,228 | $11,418 | $20,760 |
| District of Columbia | $7,608 | $13,948 | $25,360 |
| Florida | $5,832 | $10,692 | $19,440 |
| Georgia | $5,724 | $10,494 | $19,080 |
| Hawaii | $8,376 | $15,356 | $27,920 |
| Idaho | $5,820 | $10,670 | $19,400 |
| Illinois | $6,588 | $12,078 | $21,960 |
| Indiana | $5,664 | $10,384 | $18,880 |
| Iowa | $5,568 | $10,208 | $18,560 |
| Kansas | $5,604 | $10,274 | $18,680 |
| Kentucky | $5,472 | $10,032 | $18,240 |
| Louisiana | $5,712 | $10,472 | $19,040 |
| Maine | $6,216 | $11,396 | $20,720 |
| Maryland | $6,744 | $12,364 | $22,480 |
| Massachusetts | $7,152 | $13,112 | $23,840 |
| Michigan | $5,976 | $10,956 | $19,920 |
| Minnesota | $6,312 | $11,572 | $21,040 |
| Mississippi | $5,112 | $9,372 | $17,040 |
| Missouri | $5,700 | $10,450 | $19,000 |
| Montana | $5,916 | $10,846 | $19,720 |
| Nebraska | $5,568 | $10,208 | $18,560 |
| Nevada | $6,192 | $11,352 | $20,640 |
| New Hampshire | $6,336 | $11,616 | $21,120 |
| New Jersey | $6,912 | $12,672 | $23,040 |
| New Mexico | $5,568 | $10,208 | $18,560 |
| New York | $7,248 | $13,288 | $24,160 |
| North Carolina | $5,796 | $10,626 | $19,320 |
| North Dakota | $5,976 | $10,956 | $19,920 |
| Ohio | $5,808 | $10,648 | $19,360 |
| Oklahoma | $5,520 | $10,120 | $18,400 |
| Oregon | $6,432 | $11,792 | $21,440 |
| Pennsylvania | $6,180 | $11,330 | $20,600 |
| Rhode Island | $6,636 | $12,166 | $22,120 |
| South Carolina | $5,688 | $10,428 | $18,960 |
| South Dakota | $5,568 | $10,208 | $18,560 |
| Tennessee | $5,664 | $10,384 | $18,880 |
| Texas | $5,832 | $10,692 | $19,440 |
| Utah | $6,000 | $11,000 | $20,000 |
| Vermont | $6,048 | $11,088 | $20,160 |
| Virginia | $6,204 | $11,374 | $20,680 |
| Washington | $6,744 | $12,364 | $22,480 |
| West Virginia | $5,412 | $9,922 | $18,040 |
| Wisconsin | $5,880 | $10,780 | $19,600 |
| Wyoming | $5,868 | $10,758 | $19,560 |
Flat Roof Replacement cost in major cities
- Flat Roof Replacement cost in Los Angeles, CA
- Flat Roof Replacement cost in Chicago, IL
- Flat Roof Replacement cost in New York City, NY
- Flat Roof Replacement cost in Dallas, TX
- Flat Roof Replacement cost in Washington DC, DC
- Flat Roof Replacement cost in Philadelphia, PA
- Flat Roof Replacement cost in Atlanta, GA
- Flat Roof Replacement cost in Miami, FL
- Flat Roof Replacement cost in Phoenix, AZ
- Flat Roof Replacement cost in Boston, MA
- Flat Roof Replacement cost in Detroit, MI
- Flat Roof Replacement cost in Seattle, WA
- Flat Roof Replacement cost in Minneapolis, MN
- Flat Roof Replacement cost in Denver, CO
- Flat Roof Replacement cost in St. Louis, MO
- Flat Roof Replacement cost in Baltimore, MD
- Flat Roof Replacement cost in Charlotte, NC
- Flat Roof Replacement cost in Portland, OR
- Flat Roof Replacement cost in Las Vegas, NV
- Flat Roof Replacement cost in Cincinnati, OH
- Flat Roof Replacement cost in Indianapolis, IN
- Flat Roof Replacement cost in Nashville, TN
- Flat Roof Replacement cost in Milwaukee, WI
- Flat Roof Replacement cost in Oklahoma City, OK
Common questions
How much does flat roof replacement cost in 2026?
Flat Roof Replacement costs $6,000–$20,000 nationally, with the average job at $11,000. Removal of the existing membrane and installation of a new single-ply TPO or EPDM roof with insulation board and sealed seams. Includes edge metal and drain reflashing.
What makes flat roof replacement more expensive?
The main cost drivers are membrane type tpo or epdm, roof square footage, insulation thickness, drainage and ponding fixes. Labor runs about $24 per hour nationally and is usually 40-60% of the quote.
How long does flat roof replacement take?
A typical flat roof replacement job takes 2 to 3 days, plus any permit and inspection time your city requires.
How do I get an accurate flat roof replacement quote?
Get at least three written quotes from local contractors that list the scope, materials, permit handling and warranty. Prices vary by state and city, so use the state table and city pages here to sanity-check what you are quoted.
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