Window Well Liners in Des Moines

A window well liner is the honest middle option between living with a rusted well and paying to replace it. It costs $400–$900 installed, it takes a fraction of the time, and on a well that still has structure it buys years. It is also the option most contractors do not mention, because a replacement is a bigger invoice.

When a liner is the right call

Three conditions, all of them checkable in two minutes with a screwdriver.

1. The steel still has structure. Push at the soil line in several places. Scale that flakes off over solid metal is surface corrosion. That well is still carrying its load.
2. The anchors are tight. No gap where the flange meets the foundation, no elongated bolt holes, no daylight behind the well.
3. The shape is intact. Still square or still round, not bellied inward.

If all three hold, a liner restores a clean interior face, removes the sharp rusted edges that make a well unpleasant and unsafe to be in, and stops the cosmetic decline without excavating your yard.

When it is not

• The steel is perforated at the soil line. A liner over a hole is a cover story. That well is a replacement.
• The well is bowed or has pulled away. Soil is already winning, and hiding it makes it harder to see the next stage.
• The well holds water every spring. That is drainage, not surface condition, and the flooding well page explains why it happens on Iowa clay. Fix the bed first, at $300–$1,000, and then decide about the liner.
• The well is already at minimum code dimensions. A liner takes up a little interior space. On an egress well sitting at exactly 9 square feet with a 36-inch projection, that matters, and we measure before fitting.

What the work involves

The well is cleaned out and the loose scale removed. The interior surface is inspected properly, which is often the most valuable part of the visit because it is the first time in decades anyone has looked at the steel below the gravel line. The liner is cut to the well’s actual dimensions and fitted, anchored into sound material, and sealed at the foundation face so water is not driven behind it. Where the well’s ladder is inadequate or missing, that is checked in the same visit, since code requires a permanent ladder on wells deeper than 44 inches.

Most liner jobs are a single visit with no excavation, which is why the price sits where it does.

Liner, replacement, or drainage: the honest comparison

Every figure is from the pricing page, and the window well calculator will combine them for your situation.

Why we offer this at all

Because a lot of Des Moines wells do not need replacing yet. The corrugated galvanized wells across the metro’s 1980s and 1990s housing are at the end of a 25 to 35 year clock, and “at the end of the clock” is not the same as “failed.” A well caught in the pitting stage, given a liner and a cover, often outlives the owner’s time in the house. A well left until the steel perforates is a $1,000–$3,000 excavation. Telling you which one you have is a two-minute conversation, and it is worth having before anyone quotes you the larger number.

Free on-site measure across Des Moines, Ankeny, West Des Moines, Urbandale, Johnston, Waukee, and Altoona.