Side-hinged windows that crank out fully — full ventilation, full view, no center seam blocking the screen. Pella Certified install.
Every casement window project KPro takes on starts with a free 24-hour drone inspection. We document everything before we touch a single shingle, fastener, or membrane — and you get those photos and the written assessment whether you proceed or not.
Our St. Louis customers have been telling us the same thing for 6 years strong: the difference is in the details. Three magnet sweeps for nails. Final drone inspection before sign-off. Two rounds of rain test for any roofing work. Owner on-site for every insurance adjuster meeting.
From Manchester to Chesterfield, Wildwood to Ballwin, Kirkwood to Town & Country — KPro has installed, repaired, and maintained casement window across every St. Louis suburb. Family-owned since 2020. 4.9 stars on 160+ verified reviews.
Casement is the modern architectural choice when you want clean lines and full opening.
Full opening. Unlike double-hung which only opens 50%, casements open 100%. Best ventilation per sq ft of any window style.
Tight seal. Multipoint locking + compression seal = best air-infiltration rating among operable windows.
Tight spaces. Over kitchen sinks, in bathrooms, or anywhere a top-down/bottom-up double-hung is awkward.
Modern aesthetic. Clean horizontal sightlines. No center muntin breaking the view.
On-site within 24 hours. Drone aerial photos, ground walkthrough, written assessment. Free even if you don't proceed.
Itemized: materials, labor, warranty terms. No surprises, no hidden fees.
Materials delivered the morning of. Crew on-site at 7am. Most residential jobs finish in one day.
Three magnet sweeps for nails, final inspection together, you sign off. Manufacturer + KPro labor warranty on file.
KPro provides casement window services throughout the St. Louis metropolitan area and surrounding Missouri suburbs, plus Quincy, IL.
Common questions about casement window in the St. Louis area. Don't see yours? Call (636) 386-7499.
Casement: tighter seal, full opening, modern look. Double-hung: traditional, easier to clean from inside, lower cost. Both excellent — depends on your aesthetic.
Yes — most-requested window for over-sink positions because the crank operates easily from a reach.
Inside-mounted screens. No interruption of the outside view.
Casements are typically the BEST air-infiltration rating because the sash compresses tight against the frame when locked.
KPro provides casement window across the entire St. Louis metropolitan area including Manchester, Chesterfield, Wildwood, Ballwin, Kirkwood, Town & Country, Ellisville, Creve Coeur, Webster Groves, Wentzville, O'Fallon, St. Peters, Festus, and more — plus Quincy, IL on the Illinois side. Call (636) 386-7499 to confirm we serve your specific zip code.
Same-week scheduling for all standard estimates. Same-day response for active leaks or storm damage. We provide a written, itemized estimate within 24 hours of the on-site inspection.
No obligation. Real St. Louis roofers since 2020. Bilingual crew. Owner on every claim.
