Retaining Walls
Built to Last

In Madison, Middleton, Verona, and most Dane County municipalities, retaining walls under 4 feet in height typically do not require a permit. Walls 4 feet or taller require a building permit and stamped engineering drawings — the wall must be designed by a licensed engineer to resist soil pressure and meet local code. We handle the permit application and coordinate with the engineer for any wall that needs them, so you don't have to navigate the process yourself.

Most residential walls take 3 to 10 working days from start to finish. A standard 40-foot, 3-foot-tall wall typically runs 4 to 6 days. Larger tiered walls with engineering, drainage systems, and complex curves can take 1 to 3 weeks. The biggest variables are wall length, height, soil conditions, and how much excavation is needed. Weather can extend timelines — we don't rush base prep or backfill compaction when conditions aren't right, because shortcuts here lead to wall failure down the road.

The vast majority of wall failures come from one issue — water. Specifically, hydrostatic pressure buildup behind the wall caused by inadequate drainage. Every wall we build includes a full drainage system: clean crushed stone backfill behind the wall, a perforated drain pipe at the base, and a daylight outlet or drainage tie-in. Other common failure causes we prevent: undersized base, missing geogrid reinforcement on taller walls, poor compaction during backfill, and ignored soil conditions. Cheaper quotes often skip these — and the wall is fine for a year or two before settling, bulging, or collapsing.

A properly built segmental block wall with a good drainage system will last 40 to 75+ years. Versa-Lok and Rochester Concrete Products both carry lifetime structural warranties on the blocks themselves — the limiting factor is almost always the installation, not the materials. Natural stone walls can last over a century when built well. Walls fail prematurely almost exclusively because of cut corners during installation — undersized base, missing drainage, no geogrid on tall walls. We build to outlast the property, not just the warranty.

It depends on the job. For most residential walls under 4 feet, Rochester Concrete Products (RCP) blocks offer the best balance of strength, durability, color options, and value — and they're manufactured in the Midwest for our specific freeze-thaw conditions. For taller walls, tiered systems, or anywhere engineering is required, Versa-Lok's pin-locking system gives us more structural confidence. For garden walls or smaller accent walls where character matters more than uniformity, natural stone is unmatched. There's no single right answer — the right material depends on the height, soil, drainage, and aesthetic you're going for.

Yes. We handle full demolition and rebuild of failing walls, as well as repair work on walls where the underlying base is still sound. The first step is a site assessment — we look at the cause of failure, condition of the existing base, drainage situation behind the wall, and soil conditions. From there, we recommend either repair or full rebuild based on what gives you the best long-term result. Walls that have bulged, leaned, or settled significantly usually need rebuild rather than repair, because the underlying base or drainage failure won't get fixed by patching the visible damage.

The biggest cost drivers in any wall are base prep, drainage, and geogrid reinforcement — and those are the three places contractors most often cut to win bids on price. Cheaper quotes typically reflect thinner gravel bases, no drainage system behind the wall, no geogrid layers, or undersized blocks for the wall height. None of that shows on day one — but it shows in year three when the wall starts leaning or in year seven when it fails outright. We build walls to outlast the property. Our written proposals spell out exactly what's included so you can compare apples to apples between contractors.

All of our work comes with a 1-year workmanship warranty from the date of completion. The block manufacturers carry their own warranties — Versa-Lok and Rochester Concrete Products both offer lifetime structural warranties on their products. If anything settles, shifts, or fails due to our installation work within the first year, we come back and fix it at no cost to you. To date, we've never had to come back on a wall we've installed — that's the kind of track record proper base prep, drainage, and geogrid reinforcement get you.