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Insulation in Normandy: July highs average about 88°F; January lows average about 23°F; the typical home was built around 1965 (72% before 1980).
In St. Louis County, July highs average about 88°F and January lows about 23°F, with roughly 42 inches of rain a year.
Over the last 10 years the National Weather Service recorded hailstorms, damaging thunderstorm winds and flash floods in St. Louis 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.
The typical home in St. Louis County was built around 1965, about 61 years ago, and 72% were built before 1980. Homes that age often need updated wiring, plumbing and roofs.
St. Louis County has had 22 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).
Roof repair in Normandy · AC & heating repair in Normandy · Plumbing in Normandy · Electrical in Normandy · Gutters in Normandy · Pest control in Normandy · Lawn care in Normandy · Pool service in Normandy · Siding in Normandy · Windows & doors in Normandy · Solar in Normandy · Generators in Normandy · Insulation in Normandy · Remodeling in Normandy · Kitchen remodeling in Normandy · Bathroom remodeling in Normandy · Painting in Normandy · Flooring in Normandy · Drywall in Normandy · Concrete & pavers in Normandy · Fencing in Normandy · Decks in Normandy · Tree service in Normandy · Pressure washing in Normandy · House cleaning in Normandy · Junk removal in Normandy · Garage doors in Normandy · Appliance repair in Normandy · Water & mold restoration in Normandy · Foundation repair in Normandy · Handyman in Normandy
Uneven rooms, high bills and an attic you can see the joists in are the signs; older homes often have far too little.
Attic insulation and air-sealing usually pay back fastest.
These are St. Louis County figures — more about homes in Florissant.
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