Rust Weeping From a Cast Iron Stack
Orange staining, flaking or damp spots on a vertical cast iron stack mean the pipe wall is thinning or a joint has opened. Pre-1940 homes are the likeliest to still have original cast iron.
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OUR SERVICES
Repair of cracked cast iron, sagging under-slab drains and leaking floor drains in West Des Moines homes, from Valley Junction to the west side. Camera first, 24 hours a day.
OVERVIEW
Drain repair in West Des Moines means fixing the pipes inside and beneath the house: the building drain under the basement slab, the floor drains, and the cast iron, galvanized or plastic stacks that carry waste down to it. We at Clog Busters repair those lines for West Des Moines homeowners from our Des Moines branch, 24 hours a day, and we put a camera through the pipe before we quote the work.
The age of a house points to its drain material, though only a camera confirms it. The city was incorporated as Valley Junction, a railroad town, on October 9, 1893, and Census estimates count about 1,500 homes here built in 1939 or earlier. Houses of that era commonly drain through cast iron, often with galvanized branch lines. Roughly 16,000 more homes went up from 1970 through 1999 and about 5,900 in the 2010s as West Des Moines grew into one of the fastest-growing cities in Iowa, and those homes usually run PVC or ABS plastic.
West Des Moines adopts Chapter 1 of the 2021 International Residential Code, with local amendments, in Section 8-2A-3 of the West Des Moines City Code. Under that chapter, stopping a leak or clearing a stoppage needs no permit, but removing a defective concealed drain pipe and replacing it with new material is new work that needs a permit and an inspection. See our drain repair services, or drain cleaning in West Des Moines when the pipe is sound.
Drain repairs follow the State of Iowa Plumbing Code, the 2024 Uniform Plumbing Code with Iowa amendments, which West Des Moines lists among the codes it enforces.

SIGNS OF A FAILING DRAIN
These point to damaged pipe, not a simple clog.
Orange staining, flaking or damp spots on a vertical cast iron stack mean the pipe wall is thinning or a joint has opened. Pre-1940 homes are the likeliest to still have original cast iron.
Water sitting in a basement floor drain hours after a laundry load points to a sag or partial collapse in the building drain under the slab.
A dark strip on a basement floor, following the route from a stack to the floor drain, can mean the pipe below is leaking into the fill.
When the same bathroom or kitchen backs up again weeks after cleaning, a cracked hub, an offset joint or a low spot is catching waste.
Water marks on a basement or first floor ceiling under a tub or toilet usually mean a leaking drain fitting or a cracked trap arm in the joist space.
West Des Moines designs for a winter temperature of minus 5 degrees and a 42 inch frost depth. Traps and drains in unheated space can split when standing water freezes.
DRAIN REPAIR SERVICES
Repairs to the drain, waste and vent piping inside and under your home.
We run a camera through the building drain and branch lines, then mark each defect on the floor, so concrete is cut over the fault and nowhere else.
A cracked or rusted length of cast iron stack or drain is cut out and replaced with code-approved pipe and transition couplings, leaving sound pipe in place.
Galvanized drain pipe closes up from the inside as it rusts. We replace the restricted runs, most often the smaller branches serving sinks and tubs.
We open the basement floor over the low spot or break, re-lay the pipe at proper slope on firm bedding, and close the floor once the inspection is approved.
Cracked floor drain bodies, broken traps and failed connections to the building drain are rebuilt so the drain seals and flows.
Leaks at joints, cleanouts and trap arms inside walls and ceilings are repaired at the fitting, and the line is tested before anything is closed in.
WHY CLOG BUSTERS
Camera, permit, repair, and prove it before the floor closes.
We run a camera from the nearest cleanout or floor drain, record the pipe material and condition, and mark the defect on the floor or wall above it.
You watch the footage and get a price for one fitting, one section, or a longer run.
Replacing concealed drain pipe with new material is permitted work in West Des Moines. For an emergency repair, the code allows the application on the next working business day.
We open only the floor or wall the repair needs, remove the failed pipe, and set new pipe at the correct slope with approved couplings.
City code requires inspection approval before the work is covered. Then we run water through the line, camera it again, and close up.
FAQ
Still stuck? Call the Des Moines shop at (515) 259-1991.
You need one when drain pipe is replaced. West Des Moines adopts Chapter 1 of the 2021 International Residential Code, which exempts stopping a leak or clearing a stoppage from permits. If a concealed trap, drain, waste or vent pipe is defective and has to be removed and replaced with new material, that is new work requiring a permit and inspection.
The permit can be revoked. West Des Moines City Code makes the permit holder responsible for scheduling required inspections and getting approval before the work is covered, and skipping that step counts as working without a permit. We schedule the inspection and leave the new pipe exposed until it passes.
Only a camera inspection confirms it, but the age of the house is a strong clue. Homes from the Valley Junction years, before the city took its current name in 1938, commonly have cast iron drains and stacks, often with galvanized branch lines. Homes built from the 1970s on usually drain through PVC or ABS plastic. Many older homes have been partly updated, so one house can contain all three.
Sometimes. Where the camera shows a pipe that is still continuous, with cracks or failed joints but no collapsed or missing sections, repairing it from the inside may be possible. A pipe that has sagged, separated or lost its bottom has to be cut out and replaced, which means opening the floor over that section.
Usually because the building drain under the slab has a low spot or a partial blockage. A sag forms when the soil under the pipe settles, and waste collects there instead of flowing on toward the sewer. Cleaning empties it for a while, but the sag stays until that section is re-laid at the correct slope.
Drains in heated space rarely freeze, but traps and lines in unheated crawlspaces, garages and additions can. The city's design criteria list a winter temperature of minus 5 degrees and a frost depth of 42 inches. Water standing in a trap or a sagging section can freeze and crack the pipe.
A section repair is often the right call. Cast iron wears unevenly, so one length can be rusted through while the next still has a sound wall. The camera shows whether the damage is local or spread along the run, and we quote only the failed sections unless the whole run is going. In homes near Valley Junction with original pipe, we also inspect the horizontal drain under the slab.
Call us, because our Des Moines branch is open 24 hours a day, 7 days a week. The 2021 International Residential Code that West Des Moines adopts lets an emergency repair go ahead with the permit application filed within the next working business day. We make the line safe first and handle the permit after.
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