You will likely pay around $350 to $650 to have a plumber unclog a main sewer line unless you have complications like serious damage to the line.
Unclogging Main Sewer Drain Lines
Due to extended labor, rented equipment fees, multiple access point testing, and advanced diagnostics involved, main sewer line drain snaking typically ranges from $200 to $500 per job to fully clear embedded main line clogs.
Cost Factors of Cleaning and Unclogging Drains
The overall cost of drain unclogging will depend on the blockage type, for instance, a small blockage in a toilet or sink is normally only priced at around £50 to £70. However, a more extensive blockage deep in your drains could end up costing you around £150 to £200.
Roto-Rooter's most popular service is clearing sewer lines using an auger strong enough to cut through tree roots. This service typically costs $400 to $600. Unclogging a branch line, or plumbing within the home, costs $350 to $500 on average. The technician uses a smaller auger to snake a drain in your home.
Clearing a clogged sewer line can take an hour to a few hours, depending on the blockage. If your lines are severely blocked, a video inspection and more advanced techniques may be necessary to find and address the clog.
Homeowners insurance may cover sewer line damage if it stems from something already included in your policy, like a fire or windstorm. Sewer line damage that is the result of wear and tear is excluded from home insurance coverage.
Generally speaking, you're usually responsible for drains inside the boundaries of your property, while the sewerage company is responsible for lateral drains, which are usually outside of property boundaries, and sewers.
The Plumber Will Handle the Problem
Plumbers have specialized tools to help clear problem clogs, such as a hydro jetter or more industrial drain snake. If they can unblock the pipe that way, then the cost should be minimal. If the problem is a broken pipe or tree roots, then the repair will be costly.
Wondering why is sewer line replacement so expensive? It boils down to skilled labor costs, quality materials, extensive excavation, and stringent regulations.
Mix half a cup of baking soda with half a cup of table salt and pour it into your blocked drain. Leave it to work for twenty minutes or so and then pour boiling water into the plughole.
Average Flat Rate
Some plumbing jobs are billed at a flat rate. As of 2025, the average plumber rates for larger repairs are typically between $500 to $800, while smaller jobs like repairing toilets, sinks, faucets, or bathtubs typically range from $125 to $350.
Whether you're struggling with plumbing blockages or trying to prevent them, United Rentals has a variety of plumbing snake rentals to help. Our electric plumbing snakes for rent are compact yet powerful enough to tackle tough clogs. Clear drainage and pipes with ease to ensure the proper flow of fluids or sewage.
Mix 1/3 of a cup of vinegar with 1/3 of a cup of baking soda and pour the fizzy mixture into the clogged sewer drain immediately. If you don't know how to unclog main sewer line, take advantage of vinegar to eliminate the grime, grease, and hair in the pipe. Flush the pipe with hot water after one hour.
How much does it cost to Hydrojet old pipes? On average, hydro jetting old pipes can cost between $350 and $600, though in more severe cases it could be up to $1,000 or higher.
Trenchless sewer repairs, such as pipe lining or pipe bursting, are typically 30-40% less expensive than traditional excavation and less invasive. Traditional excavation, which involves digging a trench to access the damaged pipe, is usually more expensive and can cause significant damage to your yard.
Cleaning out a sewer line doesn't have to be cost-prohibitive. According to a . net plumbing job estimator, the national average charge for a professional to service your sewer line is $196-$289. The lower end for a straightforward drain cleaning is $55, with the maximum around $1300.
The city is responsible for any sewer problem starting from the main sewer line. This line carries waste from your home and surrounding homes to places like the city's treatment plant. The pipe usually sits outside your property line on public property.
Depending on the severity of the problem, your sewer line could take anywhere from a half hour to 5 hours to be cleaned.
Does homeowners insurance cover your sewer line if it's damaged? Damage to your sewer line may be covered by your policy if it is caused by perils such as hail or windstorms, explosions, lightning or fire, damages caused by vehicles, vandalism or falling objects.
Yes, a clogged sewer line is considered a plumbing emergency. Depending on the cause and severity of a clog, the remedy may be relatively inexpensive or easy for a professional to resolve. However, more extensive damage can be costly, lead to interior water damage, and pose a health issue.
When we come out to look at the blockage, we'll confirm if the blocked pipework belongs to us. If it does, we'll clear it for free and try to investigate the cause of the blockage.
Most people should have their sewer lines cleaned every 18 to 22 months or every year and a half to two years.
Sewer line coverage varies in cost but can generally be obtained for $5 to $15 per month, depending on your property size and the area in which you live. Because sewer line incidents often cost upwards of $10,000 to repair, many homeowners consider sewer line coverage a good investment.
As a general rule, sewer line repairs are considered to be standard home maintenance expenses, which means you are not eligible for a tax break on your personal income tax returns.