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Insulation in Florissant: 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 Florissant · AC & heating repair in Florissant · Plumbing in Florissant · Electrical in Florissant · Gutters in Florissant · Pest control in Florissant · Lawn care in Florissant · Pool service in Florissant · Siding in Florissant · Windows & doors in Florissant · Solar in Florissant · Generators in Florissant · Insulation in Florissant · Remodeling in Florissant · Kitchen remodeling in Florissant · Bathroom remodeling in Florissant · Painting in Florissant · Flooring in Florissant · Drywall in Florissant · Concrete & pavers in Florissant · Fencing in Florissant · Decks in Florissant · Tree service in Florissant · Pressure washing in Florissant · House cleaning in Florissant · Junk removal in Florissant · Garage doors in Florissant · Appliance repair in Florissant · Water & mold restoration in Florissant · Foundation repair in Florissant · Handyman in Florissant
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.
Calverton Park · Black Jack · Berkeley · Hazelwood · Ferguson · Dellwood · Kinloch · Edmundson