Bay and bow windows project out from the home — adds floor space, dramatic light, and instant architectural character. Custom sized to your wall opening.
Every bay 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 bay window across every St. Louis suburb. Family-owned since 2020. 4.9 stars on 160+ verified reviews.
These projecting window styles all add space and light but serve different design goals.
Bay windows. 3-window construction with angled side panels. Most common. Great for living rooms and master bedrooms.
Bow windows. 4 or 5 windows in a curved arc. Larger and more dramatic. Premium feature window.
Garden windows. Smaller bay specifically for kitchens — designed as a mini-greenhouse for plants over a counter or sink.
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 bay window services throughout the St. Louis metropolitan area and surrounding Missouri suburbs, plus Quincy, IL.
Common questions about bay window in the St. Louis area. Don't see yours? Call (636) 386-7499.
Often yes — depends on wall structure and exterior conditions. We assess first, then engineer the opening.
Functionally yes — adds usable floor or sill space. Doesn't change tax-assessed sq ft technically.
Included in the install. We tie the roof into your existing roofline and finish the underside skirt to match siding.
Single bay window install: 1–2 days depending on opening prep needed.
KPro provides bay 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.
