Foundation Repair in Rossville & St. Marys, KS
Rossville and St. Marys share the Kansas River valley west of Topeka, KS, on either side of the Shawnee and Pottawatomie county line. Both have some of the oldest houses in the area. Describe your foundation problem once and compare free quotes from independent local companies.
Get a Free Quote Call (785) 502-9116Old houses on both sides of the county line
By the numbers, these are two of the oldest housing markets this site covers. Rossville has the highest share of pre-1980 homes of any town here. St. Marys has a third of its homes from before 1940.
| Measure | Rossville (Shawnee Co.) | St. Marys (Pottawatomie Co.) |
|---|---|---|
| Population, 2020 Census | 1,110 | 2,764 |
| Housing units | 502 | 965 |
| Median year built | 1966 | 1970 |
| Built before 1940 | 28% | 33% |
| Built before 1960 | 42% | 44% |
| Built before 1980 | 78% | 66% |
| Owner-occupied | 55% | 64% |
| Median home value | $154,600 | $206,900 |
ACS 2020 to 2024 5-year estimates; small-town figures carry wide margins of error.
Rossville: valley soil and Cross Creek
Rossville counted 1,110 people in the 2020 Census and about 1,088 in a 2025 estimate, living in roughly 500 homes. Its median year built, 1966, is a year older than Topeka, KS.
Rossville sits in the Kansas River valley, and the soil series that shares its name is a valley soil with low to moderate shrink-swell potential in USDA data. Down here, water is usually the bigger issue than clay: flooding and a high water table.
A National Weather Service summary reports that the Cross Creek gauge at Rossville held its record from June 22, 1951 (33.06 feet) until a 2005 flood set a new one. That history is a good reason to ask any company about drainage and waterproofing first.
With 78% of homes built before 1980, older block or stone basement walls are common enough that dampness, efflorescence or stair-step cracks are worth tracking with dated photos.
St. Marys: a mission town with older homes
St. Marys grew up around St. Mary's Mission, a Jesuit mission to the Potawatomi founded in 1848 between the Flint Hills and the Kansas River. Its housing is old: 33% of homes predate 1940 and 44% predate 1960. Its median home value, $206,900, is the highest of the small towns covered here, so careful repairs protect real value.
Pottawatomie County saw severe (D2) drought cover 90% of the county on October 10, 2023 (US Drought Monitor). Shawnee County peaked at 93.5% on October 17, 2023. Neither reached extreme drought, but a dry fall followed by spring rain is the cycle that tends to work clay soils on the uplands.
St. Marys grew slightly, from 2,764 people in 2020 to an estimated 2,790 in 2025. Pottawatomie County as a whole is younger (median year built 1987) and mostly owner-occupied (82%), so homes in St. Marys run older than the county average.
Before you sign anything
- Get an independent structural engineer for bowing walls, horizontal cracks or sloping floors.
- Ask your city office or county whether a permit is needed, and who pulls it.
- Get the scope, method and warranty terms in writing. Ask what the warranty covers, whether it transfers to a buyer, and get it in writing.
- Kansas law (K.S.A. 50-640) gives a 3-business-day right to cancel many door-to-door sales of $25 or more, but it can exclude repair visits the homeowner asked for. Ask whether a cancel right applies and get it in writing.
Services and nearby areas
Kansas doesn't issue a state license for foundation contractors. Inside Topeka city limits, contractors must hold a City of Topeka contractor license and pull a building permit for structural work; Lawrence, KS has its own license and permit rules. Compare typical national price ranges on the cost guide.
Free quotes in Rossville or St. Marys
Topeka Foundation Experts is a free quote service, not a contractor. The independent companies that reply may pay to receive requests, and none of them is affiliated with this site.
Rossville and St. Marys foundation questions
Why do Rossville homes need foundation work so often?
Age is a large part of it. About 78% of Rossville homes were built before 1980, the highest share among the towns this site covers, and 28% before 1940 (ACS 2020 to 2024). Older foundations have been through decades of wet and dry years, and original drainage often no longer moves water away from the walls.
Is clay soil a problem in the Kansas River valley?
Less than on the uplands. Valley soils such as the Rossville series have low to moderate shrink-swell potential in USDA soil data. Flooding and a high water table are usually the bigger concerns there, so drainage, grading and waterproofing often come before structural work. Check your own lot on Web Soil Survey.
Who handles permits in Rossville and St. Marys?
Rossville is in Shawnee County and St. Marys is in Pottawatomie County, and both are outside Topeka city limits. Check with your city office or county before work starts. Kansas has no state license for foundation contractors, so ask each company about its license, insurance and who pulls the permit.
Cracks, bowing walls or a sloping floor? Get free foundation quotes.
Describe it once and independent foundation companies serving Topeka and northeast Kansas can reply with no-obligation quotes.