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Plumbing in St. Mary: winter lows around 23°F mean exposed pipes can freeze and burst; flash floods here can back up drains.

Weather and your home

In Ste. Genevieve County, July highs average about 88°F and January lows about 23°F, with roughly 44 inches of rain a year.

Storms

Over the last 10 years the National Weather Service recorded damaging thunderstorm winds, hailstorms and flash floods in Ste. Genevieve County, with hail up to 2.5 inches across. After a storm, a quick roof and gutter check catches damage before it turns into a leak.

Disaster history

Ste. Genevieve County has had 24 federal disaster declarations in the last 25 years, most often for severe storms; the latest was Severe Storms, Straight-Line Winds, Tornadoes, And Flooding (2025).

Services

Roof repair in St. Mary · AC & heating repair in St. Mary · Plumbing in St. Mary · Electrical in St. Mary · Gutters in St. Mary · Pest control in St. Mary · Lawn care in St. Mary · Pool service in St. Mary · Siding in St. Mary · Windows & doors in St. Mary · Solar in St. Mary · Generators in St. Mary · Insulation in St. Mary · Remodeling in St. Mary · Kitchen remodeling in St. Mary · Bathroom remodeling in St. Mary · Painting in St. Mary · Flooring in St. Mary · Drywall in St. Mary · Concrete & pavers in St. Mary · Fencing in St. Mary · Decks in St. Mary · Tree service in St. Mary · Pressure washing in St. Mary · House cleaning in St. Mary · Junk removal in St. Mary · Garage doors in St. Mary · Appliance repair in St. Mary · Water & mold restoration in St. Mary · Foundation repair in St. Mary · Handyman in St. Mary

Questions

How do I stop pipes freezing in St. Mary?

Insulate pipes in crawl spaces and outside walls, drip faucets on the coldest nights, and know where your main shut-off is.

When should I replace old pipes?

Galvanized steel and polybutylene pipes are past their life in most homes — low pressure, rusty water or repeated leaks are the signs.

Is a leak an emergency?

Yes if water is spreading or near electrics — turn off the main and choose Emergency when you book; we call you at the first opening.

These are Ste. Genevieve County figures — more about homes in Ste. Genevieve.

Nearby

Ste. Genevieve · Perryville · Longtown · Bloomsdale · Old Appleton · Frohna · Sedgewickville · Altenburg