Sewage cleanup in Denver costs about $5,400 in 2026

What moves the price

• Sewage is black water, the most expensive category there is. HomeGuide prices black water extraction at $9 to $12 a square foot and LawnStarter puts black water restoration at $7 to $7.50 a square foot.
• Square feet, and the rate per square foot. Restoration 1 quotes $7 to $14 a square foot, Restoration Local quotes around $7, and Homewyse put the labor alone at $13.21 to $16.26 a square foot in April 2025.
• What the water touched. Carpet, pad, particle board, insulation and drywall all go out. Tile and sealed concrete can be cleaned and saved, which is why a bathroom backup costs far less than the same backup in a carpeted basement.
• Where the broken pipe is. A line in a basement is easy. A line under a slab means cutting concrete, and a line in the yard means digging. The pipe repair is a separate bill from the cleanup.
• Local labor. The Denver labor index is 1.11 and a laborer here is $24.49 an hour (BLS, May 2025). A licensed plumber here is $34.57 an hour, and you will usually need both trades.
• How long it sat. Sewage that has been in a room for two days is a mold job as well as a sewage job, and HomeGuide puts mold work at $15 to $30 a square foot.
• Protective gear and disposal. Crews need suits, respirators and a licensed route to dump the waste. That is a real cost and it is the reason this job is not a do it yourself job.
• A finished basement makes a sewer backup much more expensive. Carpet, pad, drywall and anything porous the water touched has to go in the skip.

What is included

A sewage cleanup in Denver runs in a fixed order, and no honest crew skips a step.

Step 1, stop the flow and make the area safe. Nobody goes in without a suit, gloves, boots and a respirator. The power to that area usually comes off.

Step 2, extraction. The waste water is pumped out with equipment that can handle solids. This is the part priced per square foot, $9 to $12 for black water according to HomeGuide.

Step 3, removal. Everything porous goes. Carpet and pad, drywall cut above the water line, insulation, particle board cabinets and any soft furniture that was touched. This cannot be cleaned and no insurer expects it to be.

Step 4, cleaning and disinfecting. Hard surfaces are washed, scrubbed and treated with a hospital grade disinfectant, usually twice.

Step 5, drying. Air movers and dehumidifiers for three to five days, with daily moisture readings.

Step 6, deodorizing. Sewage smell gets into the subfloor. Sealing the subfloor is often cheaper than replacing it.

Step 7, the pipe. The cleanup does not fix what caused it. A camera inspection finds the break or the root intrusion, then the line is cleared, lined or dug up. Ask for this as its own quote.

Step 8, the rebuild. New drywall, flooring and cabinets.

What the guides say. ThePricer puts a typical residential job at $2,000 to $10,000, with one room around $2,000 and a whole building at $50,000 and over. The per square foot numbers from Restoration 1 ($7 to $14), Restoration Local (about $7) and Homewyse labor only ($13.21 to $16.26, April 2025) line up with HomeGuide black water at $9 to $12 once you add the gear and the disposal.

Insurance, in plain words. A sudden backup caused by a blockage or a failed pipe is often covered, but only if you have the sewer backup endorsement on your policy. It is not standard and it is cheap, usually a small amount a year. A backup caused by outside flood water is flood, and needs a flood policy. A backup caused by roots that grew into a pipe over years can be refused as a maintenance problem, so get the plumber to write the cause down carefully.

Why this costs more in 2026

Restoration costs more in 2026 for the same reasons every trade does. Crew labor runs $100 to $250 an hour. Freight and anything made from oil went up after the oil shock that started with the Iran war in February 2026, and antimicrobial chemicals, plastic sheeting, foam and sealers are all oil products. Steel, copper, aluminum and resin are up, so the rebuild that follows the cleanup costs more than it did two years ago. Sewage work has an extra 2026 cost: suits, respirators, disinfectant and licensed waste disposal are all up, and they are not optional on this job. A laborer in the Denver-Aurora-Centennial, CO area now earns $24.49 an hour and a plumber $34.57 (BLS, May 2025).

Ways to pay less

• Add the sewer backup endorsement to your policy now. It is one of the cheapest add ons there is and this is one of the most expensive jobs.
• Keep everyone out of the area, including pets. Every extra room that gets walked through is another room on the invoice.
• Photograph everything before the crew starts, then photograph each pile of removed material.
• Get the camera inspection quoted separately from the cleanup. Some crews fold a $300 camera run into a vague line and charge four times that.
• Ask whether the subfloor can be sealed rather than replaced. Sealing is often a few hundred dollars against a few thousand.
• If roots caused it, ask the plumber about lining the pipe instead of digging it up. Lining costs more per foot and far less in total when the line runs under a driveway.
• Install a backwater valve after the cleanup. It is the one thing that stops the same bill arriving again next storm.

What price guides say

We checked 4 price guides and read every number on their pages. They do not all measure the same thing, so the ranges on this page come from putting them side by side.

• ThePricer: How much does sewage cleanup cost
• HomeGuide: Water damage restoration cost, written February 6, 2026
• LawnStarter: How Much Does Water Damage Restoration Cost in 2026
• BLS: Occupational Employment and Wage Statistics, metro files, May 2025

Common questions

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