What if my house doesn't have a sewer cleanout?

Author: Kellie Cummings  |  Last update: Friday, March 20, 2026

If your main sewer line is clogged and you don't have a cleanout, you may be able to clear the blockage using a plunger or a plumber's snake. You have a few options to try before calling a professional.

What happens if you don't have a sewer cleanout?

If you don't have drain cleanouts, backups can still be removed but it can sometimes be more challenging. The plumber has two options in this situation: access the sewer line from the roof or from the toilet. Unfortunately, neither option is as effective as going in through a cleanout.

Why doesn't my house have a cleanout?

In the rare chance you happen to be in a home without one, your plumbing system is probably cast iron. (It's EXTREMELY unlikely a PVC plumbed house did not have cleanouts installed as part of the system.) IF this is the case, we can install sewer cleanouts on your system.

Does my house have a drain cleanout?

The drain cleanout will often be close to a cluster of drainage pipes, like a full bathroom with drains for the sink, toilet, and shower. Inspect each bathroom in the home, looking for a capped black or white ABS plastic drain line. Also, check the utility room or the garage.

How much does it cost to get a sewer line cleaned out?

Clearing a clogged sewer line costs $250 to $800, depending on where the clog is located, what causes it, and the necessary cleaning. A clogged sewer line is typically an indication of a much larger problem. The main sewer line is much larger and can typically handle more volume than the average drain in your home.

This Pipe Can SAVE YOUR HOUSE FROM SEWAGE FLOODS! (Sewer Clean Out Pipe Explanation)

Does insurance cover sewer line replacement?

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.

How much do plumbers charge to install a cleanout?

Depending on the job's difficulty, cleanout installation will cost the average homeowner between $650 – $2,000, with the highest cost reserved for those that require extensive digging and retrofitting.

Does every drain need a cleanout?

Drain cleanouts are access points located throughout a home's drain line, usually near the basement wall. Each drain in the house typically has at least one drain cleanout, from which debris and clogged material can be removed.

How to clear a main sewer line clog yourself?

Your step-by-step guide: How to clear a main sewer line clog
  1. Step 1: Loosen the cap on the drain pipe. ...
  2. Step 2: Open the cap and let the buildup drain out. ...
  3. Step 3: Feed the auger cable into the drain pipe. ...
  4. Step 4: Run the auger until the clog is clear—and beyond. ...
  5. Step 5: Hose down the pipe and auger cable.

How do I clean my sewer line without a cleanout?

You can tackle a clogged sewer line using other strategies if you don't have a snake on hand. First, you can run hot water down the drain for 5 to 10 minutes to see if that helps break up the clog. If it doesn't, pour equal parts of vinegar and baking soda into a bowl and then pour that mixture down the drain.

How much does a house cleanout cost?

Home cleanout costs per square foot may vary, but generally, you can expect to pay between $0.20 and $0.50 per square foot, depending on the condition of the property and the volume of items to be cleared.

How to know if a sewer line is clogged?

10 Signs Your Sewer Line Is Clogged
  1. Multiple Fixtures Are Clogged. ...
  2. Flushing the Toilet Causes Water to Come Up Elsewhere. ...
  3. Water Draining From Your Washing Machine Causes an Overflow in Other Locations. ...
  4. Drainage at the Cleanout. ...
  5. Slow-Draining Sinks or Toilets. ...
  6. Frequent Plunging. ...
  7. Bubbles in Your Toilet Water. ...
  8. Dark Water.

Are cleanouts required?

Cleanouts are required for horizontal drainage piping (see Figure 707.4). For long runs of piping, a cleanout is required every 100 feet.

Does every house have a sewer trap?

If your house was constructed prior to 1989, there's a strong likelihood that it contains a house trap or sewer trap, a plumbing device used to 'trap' gases in the sewer system so that they do not seep out into the home's interior. Today, these devices are obsolete.

How often do you need to empty your sewer tank?

Household septic tanks are typically pumped every three to five years. Alternative systems with electrical float switches, pumps, or mechanical components should be inspected more often, generally once a year. A service contract is important since alternative systems have mechanized parts.

How much does it cost to clear a clogged sewer line?

Plumber Drain Snaking Costs

Simple sink, shower, or toilet clogs – $100 to $250 per drain. Kitchen sink or laundry drain cleanout – $150 to $275 average cost. Main sewer line augering – $200 to $500 per cleaning. Extensive sewervideo inspection & repairs – $400 to $1,000+

Will Drano unclog a main sewer line?

With a clogged basement drain, pouring Drano or similar products down your sewer drain can actually damage your pipes or the glue holding them together, causing more sewer system problems in the future.

Why should you never use baking soda and vinegar to unclog a drain?

The fizzing reaction and gas created may help loosen some small blockages. However, it is not typically strong enough to break down larger clogs or remove hard-to-reach debris. As a result of the above facts, if you have a serious drain clog, using baking soda and vinegar is unlikely to be effective.

How much does it cost to install a sewer cleanout?

On average sewer cleanout installation cost runs between $1,850- 3,500. This cost depends on several factors such as depths, or whether or not landscape or concrete will be removed, to create a proper workspace to access the sewer line.

Do all houses have a sewer cleanout?

A lot of people think they don't have sewer cleanouts. But as I said, pretty much all homes do these days. It's more likely that your sewer cleanout is buried, often in a flower bed area. People cover up the cleanout because they think it's an eyesore.

How do I unclog the main sewer line?

Mix baking soda and vinegar in the ratio of 1:2 and add the mixture in 60 gallons of water. Use the plunger or drain snake as you pour the water into the drain. If you are wondering how to unclog main sewer line, the pressure of the water will dislodge the debris easily.

What does a sewer cleanout look like?

A drain cleanout pipe is 3, 4, or 6 inches in diameter and typically white or black. It has become common practice for the sewage line, drain cleanout, plug, and cap to be made of ABS plastic, though about 76 million homes in America still have cast iron sewage lines with brass or cast iron drain cleanouts.

What is the cheapest way to replace a sewer line?

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.

How much does it cost to unblock a sewage drain?

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.

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