Concrete Cutting in Green Bay

Green Bay Egress Windows cuts code-ready openings in foundation walls - diamond-blade wet sawing through poured concrete, course-by-course removal on block - as the structural heart of every egress window project, and as a standalone service for basement window and door openings across Brown County. Cutting is quoted within the full egress install ($3,500–$6,500 complete) or scoped separately when you only need the opening.

Sawing a foundation is the step that makes this trade a trade. Anyone can rent a saw; the skill is in what happens before the blade spins - layout, structural assessment, permits - and in what holds the house up afterward. Here’s how it’s done right in Green Bay’s housing stock.

Layout: where the opening can and can’t go

Every cut starts inside, with the wall’s real conditions:

• Footing depth and frost. Wisconsin’s dwelling code puts footings below frost penetration or at least 48 inches down - and the new sill and the excavation outside it have to respect where your footing actually sits. Green Bay’s freeze depth is why basements here are deep, and why sills routinely land low enough to need the code’s areaway and ladder provisions.
• Joist bearing and load paths. An opening under the bearing end of joists needs more header than one under a parallel run. We map the framing before we mark the wall.
• What’s hiding in the cavity and the dig path. Wiring, plumbing, the water service, buried downspout lines - Diggers Hotline locates the utilities outside; we scout the wall inside. Moving a planned opening 16 inches at layout costs nothing.
• Grade and drainage outcomes. The opening’s position determines the well’s depth, and depth determines ladder requirements and drainage design. Cutting decisions are drainage decisions.

Poured walls: diamond-blade wet sawing

Most construction here from the 1990s onward - and nearly everything new in Howard, Suamico, Ledgeview, and Bellevue - is 8-to-10-inch poured concrete. The cut is made with water-cooled diamond blades, scored and run to full depth, with corners finished cleanly so the cut doesn’t overcut past the opening (overcuts are stress risers and they’re ugly - you see them forever in an unfinished basement). The slug comes out in controlled sections rather than one back-breaking monolith.

Wet cutting matters for more than blade life: it suppresses respirable silica dust, which is a genuine health hazard of dry-cutting concrete. Inside, the work zone gets sealed in plastic; the slurry gets managed and the concrete hauled away. Loud for a few hours, clean by the end of the day.

Block walls: the east and west side standard

Green Bay’s postwar ranch belts - the blocks that filled in east toward Bellevue and west toward Howard through the 1950s–70s - are predominantly concrete block. Block openings are sawn and removed course by course, cores cleaned, and the opening’s cells reinforced or grouted as conditions require before the pressure-treated buck frame is anchored. Block work is typically less saw-intensive than poured wall, which is why block jobs often land at the lower end of install pricing - details on the pricing page.

Pre-war foundations near downtown, in the Astor neighborhood, and off Broadway are their own category: stone, brick, or early mixed pours. Some cut beautifully; some need an engineer’s assessment first. That evaluation is part of the free measure, and “this wall needs an engineer before anyone cuts it” is an answer we’re not afraid to give.

The structure above the hole

The load that used to pass through the wall you removed has to go somewhere. Depending on the wall and what it carries, that means a steel or engineered lintel, a sized header, or - in reinforced modern pours over modest openings - the wall’s own capacity, verified rather than assumed. The header ties into the buck frame, the buck anchors to sound concrete, and the window gets a structural surround rather than a friction fit.

This is also exactly what your municipal inspector comes to look at, and it’s why the permit is a feature, not a tax: undersized headers are invisible at drywall time and expensive at settlement-crack time. Foundation cuts in every community we serve - Green Bay, De Pere, Howard, Suamico, and Bellevue - go through that municipality’s own permit and inspection office, and we run that process end to end. What we never do is guarantee an outcome that belongs to the inspector.

Beyond egress windows

The same capability covers related work: enlarging existing openings to meet the UDC’s 20-by-24-inch net clear egress spec, basement walkout door openings where grade allows, and utility penetrations. If the cut serves a future bedroom, pair it with the window well and drainage that make it livable - a great opening behind a flooding well is a short-lived victory in this clay.

Cutting is done by independent local contractors. Before anyone saws, ask for the Dwelling Contractor certificate and proof of insurance. If you know where you want daylight, send the form - free on-site measure, structural straight talk, and a flat quote for the opening, the whole install, or honest advice that your wall should stay exactly as it is.