


As a professional sewer company, we repair and replace the sewer lines that carry wastewater away from homes and businesses, which helps reduce the spread of contamination.
Sewer blockages that harm homes and buildings are avoided by having sewer services.
Keeping wastewater in the pipe, rather than leaking into soil and groundwater, helps protect water sources and ecosystems.





We offer sewer repair, sewer installation, trenchless sewer repair, septic-to-sewer conversion, sewer pump installation, sewer inspections, sewer maintenance, sewer cleaning, and sewer backup services. We also handle sewer line replacement when a damaged line needs to be replaced.
It depends on what's wrong with the sewer line. If you're dealing with recurring clogs, backups, slow drains, or unusual odors, we'll inspect the system to find the cause. From there, we'll explain whether you need cleaning, repair, replacement, or another sewer service.
Common problems include blockages, tree root intrusion, leaks, damaged pipes, sewer line collapses, pipe corrosion, poor installation, and recurring clogs. Older sewer lines can be more prone to these problems, so getting a recurring issue checked can help identify what's causing it.
Sometimes. Trenchless sewer repair uses limited excavation compared with traditional sewer replacement. We offer pipe lining and pipe bursting, and we'll determine whether either method is suitable for the condition and location of your sewer line.
There's no single price because the cost depends on the service, the condition and location of the sewer line, the amount of work required, and whether excavation is involved. We provide free estimates and assess the property before giving you a price. For general guidance, see our sewer line repair cost guide.
Yes. Aces Four is a licensed, bonded, and insured Washington contractor. Our registration number is listed in the footer, and you can verify it on the Washington State Department of Labor & Industries website.
Most sewer work does. In Seattle, side sewer work requires a side sewer permit from the Seattle Department of Construction and Inspections (SDCI), and work in the public right of way needs a separate SDOT right-of-way permit. We make sure the necessary permits have been obtained before work begins. For details, see our guide to Seattle side sewer permit requirements.
We'll inspect the problem, discuss what we're finding, and explain the work that's needed. If a sewer camera inspection is appropriate, we'll use it to look inside the line before recommending a repair or replacement.
Sewer repair fixes a damaged section of the line, such as a crack or a root-damaged joint. Sewer line replacement installs a new line from the house to the city main when the old line is collapsed, badly deteriorated, or failing in many places. A camera inspection shows which one your line needs.
In general, the sewer main in the street is the city's responsibility, while the side sewer that runs from your building to the main is the property owner's. If you're not sure where the problem is, a camera inspection can help locate it.
Signs you may need a new sewer line include frequent clogs or slow drains, foul odors in your yard or home, persistent wet spots or unusually lush grass patches, and foundation cracks or sinkholes near the sewer line. A camera inspection can confirm the cause.
Trenchless repairs often take about a day, while traditional methods can take several days to a week. Pipe length, depth, access, the type of damage, and permit requirements all affect the timeline.
Yes. We handle septic to sewer conversion: we install a new sewer line to the city main with the proper grade and decommission the old tank, subject to the permits that apply.