Signs you need it
- Ponding water after rain on a flat roof
- Open seams or failed flashing at rooftop units and parapets
- Ceiling stains below drains, units or roof edges
- A roof near the end of its warranty, with a lease or sale coming up
46.8% of the housing in Manhattan sits outside single-family houses, higher than 89% of the cities we cover. 25 local roofers are listed.
Commercial roofing covers retail, office, warehouse, church and multi-family buildings. Most of these roofs are flat or low-slope and use single-ply membranes, modified bitumen, built-up roofing or standing seam metal.
Crews, materials and warranties differ from house roofing. A company that is good on shingles may not be the right one for a membrane roof.
A large share of Manhattan's housing sits outside single-family houses, so flat and low-slope roofs are common. Ask every company about its experience with your type of building, not only with houses.
The county has fewer roofing companies with payroll than most cities we cover, so a commercial job may draw few bidders. Ask early who will bid, and whether nearby companies will travel.
| Fact | Manhattan | Median city | Rank (1 is highest) |
|---|---|---|---|
| Housing units outside single-family houses | 46.8% | 33.2% | 23 of 213 |
| Days with wind gusts of 58 mph or more | 47 | 50 | 117 of 212 |
| Days with hail of 1 inch or more | 36 | 16.5 | 43 of 212 |
| Roofing companies with payroll in the county | 7 | 18 | 176 of 210 |
April has the most reports, 29 of 95. 99% of reports fall from March to September; the other 1 come in October (1).
The largest stone in NOAA's record for Riley County fell on September 10, 2015: 4 inches, about the size of a grapefruit.
That day brought 4 reports, with the largest from Randolph.
A commercial roof laid before September 2015 was in place for the largest stone in the record, so ask for a roof survey and keep it with the warranty papers.
The strongest tornado in the record was rated EF2 on June 4, 2026 and stayed on the ground for 3.84 miles.
The strongest thunderstorm gust was 115 mph, on June 11, 2022.
| Date | Largest hail | Reports | Where |
|---|---|---|---|
| September 10, 2015 | 4 in, a grapefruit | 4 | Randolph |
| June 13, 2024 | 3.5 in, a teacup | 13 | Manhattan |
| May 6, 2024 | 2.75 in, a baseball | 2 | Riley |
A commercial roof is priced by the building: its area, membrane, insulation, drainage and rooftop equipment. One range per city would mislead.
Ask each company for a written scope and a price per square foot of roof, so bids can be compared line by line.
Estimates for a 2,000 square foot roof, not quotes. How we build them6 of 25 listed. They are based in Manhattan (3), Lenexa, St George, Topeka. We do not tag companies by service, so ask each one about commercial roofing.
10457 W 84th Terrace, Lenexa, KS 66214
2015 NW Brickyard Rd, Topeka, KS 66618
7839 US-24, Manhattan, KS 66502
8521 US-24, Manhattan, KS 66502
9131 Excel Ln, Manhattan, KS 66502
3625 Legion Ln suite #4, St George, KS 66535
Permit requirements depend on the property, scope of work and local jurisdiction. Check with the city or county building department and confirm who will obtain any required permit before work starts.
Send one free request. We offer it to one local company at a time. We can't promise when a roofer will call.