Concrete Cutting in Des Moines

Concrete cutting is the skilled center of every egress project - and Des Moines Egress Windows cuts foundation openings the way the rest of the job deserves: laid out precisely, wet-sawed clean, structurally framed, permitted, and inspected. We cut new window and door openings and enlarge existing ones in poured and block walls across the metro, always as part of a finished, weathertight assembly - never a bare hole and a wave goodbye.

If you found this page searching “concrete cutting near me” for an egress project, the practical answer is the full installation service - cut, window, well, and drainage as one flat-quoted job. This page explains the cutting itself, because it’s the step where good and bad basement projects diverge.

Poured walls vs. block walls: two different jobs

Poured concrete - the standard from roughly the 1980s on, which means nearly everything in Ankeny, Johnston, Waukee-side West Des Moines, and newer Urbandale. Cut with water-cooled diamond blades, tracking a layout snapped to the wall. The water does two jobs: cools the blade and kills most of the airborne silica dust. The skill shows at the corners - stopping the cut exactly at the layout line instead of overcutting past it, because an overcut corner is a permanent stress concentration in your foundation wall. Sections are cut to liftable sizes and removed; edges get dressed flat for the buck.

Concrete block (CMU) - the metro’s mid-century standard: the 1940s–70s ranch belts of Urbandale, the Des Moines south and east sides, older West Des Moines and Ankeny. Block comes out course by course, cells get cleaned, and the new jambs are solidified so the opening has solid bearing, not hollow cores. Usually faster and cheaper than sawing poured concrete - one reason block-era homes land at the lower end of install pricing on the pricing page.

Brick-and-block and older masonry - common under pre-war stock like Beaverdale’s brick homes. These walls get evaluated at the measure; most are routine, and the occasional one that needs an engineer’s input gets told to you straight before anyone starts a saw.

The structure over the hole

Cutting is only half the trade; carrying the load around the new opening is the other half. Depending on wall type and what’s above, that means a steel or engineered lintel bearing on solid material at both jambs, or in many below-grade window cases, an opening sized and placed so the remaining wall handles the load - a determination, not a guess. Then a pressure-treated buck frame gets anchored into the concrete, giving the window a square, solid, rot-resistant mount.

This is what the city’s inspection exists to check, and it’s why every cut we make runs through a permit with the correct office - Des Moines’ Permit and Development Center or the building department in Ankeny, West Des Moines, Urbandale, or Johnston. The common failure mode - someone’s old unpermitted cut with a sagging sill and a diagonal crack climbing from the corner - costs multiples of doing it right the first time.

What we check before the blade spins

• Utility locates through Iowa One Call (811) outside; wiring, plumbing, and ductwork traced inside the wall cavity and joist bays.
• Footing depth and joist bearing - the opening has to respect what the wall is holding up and what’s below the slab line.
• Sill height math - the cut line is set so the finished sill lands within IRC R310’s 44-inch maximum while the excavation and well outside can reach below it with a real gravel drainage bed. Cutting is indoor work, but its layout is dictated by the outdoor half: the well, the frost-depth dig, and the drainage path.
• Enlargements vs. new cuts - dropping the sill of an existing opening (glass-block removals in older Des Moines constantly become this) re-frames the header question just like a fresh cut; the old framing rarely survives.

Sequencing, season, and price

Cutting itself is indoor work and technically possible year-round - but on egress projects it’s sequenced with excavation, which pauses when the ground freezes toward the metro’s 42-inch frost line. Practical calendar: cuts tied to new wells run April–November; enlargement layout, permits, and quotes happen all winter so the saw and excavator show up together in spring.

Cutting is priced inside the job it serves rather than as a bare line item, because a hole in a foundation without a header, buck, window, and drainage isn’t a deliverable - it’s a liability. Full install pricing ($3,500–$6,500 typical) and every related line are published on the pricing page; a second opening cut in the same visit prices well below the first because the mobilization is already paid for. That second-opening math matters here: metro basements being finished into two bedrooms - or a bedroom plus a basement ADU - need a compliant opening for every sleeping room.

Send the form with a photo of the wall, inside and out if you can. Free on-site measure, flat quote, permit filed with your city - and the sawing is done by independent local contractors across Des Moines and the suburbs. Ask for a certificate of insurance before the blade touches your wall. If what your project actually needs first is a compliance review of an existing bedroom, we’ll route you there instead of selling you a cut.