Sewer Line Repair & Replacement in the DC Metro Area
Every drain in your house leaves through one line — the sewer line running from your home out to the street. When that line cracks, fills with roots, sags, or collapses, the problem doesn’t stay in one sink. It shows up everywhere at once.
Custom Flow Plumbers repairs and replaces sewer lines for homeowners across the DC metro area. We find what’s failing, explain it in plain language, and do the work the situation calls for — repairing the bad section when that’s the honest fix, or replacing the line when it isn’t.
Signs your sewer line is the problem
- Backups that keep coming back, especially in the lowest drains in the house
- Several drains running slow or gurgling at the same time
- Sewage smells inside the house or out in the yard
- A patch of yard over the line that stays wet or unusually green
- A line that clogs again soon after it’s been cleaned
One slow drain is usually that drain — and a blocked but sound line may just need a cleaning. The whole house acting up at once points at the main line itself.
Repair it, or replace it?
That depends on the condition of the line:
- Damage in one place — a cracked section, one joint full of roots — can often be spot-repaired, depending on the situation and the shape the rest of the line is in.
- Damage along the line — a collapsed or sagging pipe, breaks in several places, or an old line that has simply reached the end of its life — is replacement work. Repairing one section of a line that’s failing everywhere buys a little time and costs you twice.
Already have a quote for sewer work? We can look at the line and give you our honest read on what it needs before you spend on it.
How we handle it
- We find the problem — where the line is failing and what’s causing it.
- We explain what we found and whether a spot repair or a replacement is the honest fix.
- We plan the work with you — where the digging has to happen and how much of it the job needs.
- We do the work — open-trench repair or replacement, with permits pulled and inspections done by the local government.
- We finish the ground — backfilled, with soil and seed down — then test the line and walk the finished job with you.
Frequently asked questions
How do I know it’s my sewer line and not just a clog?
A clog affects one drain; a sewer line problem shows up in several at once — backups in the lowest drains, gurgling, smells, a line that clogs again soon after cleaning. That’s the pattern that points at the main line.
Do you always have to replace the whole line?
No. When the damage is in one place and the rest of the line is sound, a spot repair can be the right job, depending on the situation. When the damage runs along the line, or the line has collapsed or reached the end of its life, replacement is the fix that holds.
Will you have to dig up my whole yard?
We dig as much as the job requires — sometimes that’s one section, sometimes the run of the line. When the work is done we backfill and put down soil and seed. Landscaping — plants, beds, and hardscape — is the homeowner’s side to restore.
What pipe goes in when you replace a sewer line?
PVC. It’s what we install for sewer line replacement.
Do you pull permits for sewer work?
Yes. We pull the permits, and the inspections are done by the local government.
What happens if I leave a damaged sewer line alone?
It doesn’t heal. Cracks let roots in, roots catch everything that passes, and backups get more frequent — until sewage backs up into the house. A damaged line found early is a smaller job than the same line found late.
Why Custom Flow
- Licensed & Insured · WSSC License #P 74018
- Rated 5.0 stars on Google
- 2-Year Parts & Labor Warranty on work we supply and install
- A local company serving the whole DC metro area — when you call, you reach the company that does the work
Sewer line trouble? Call (301) 971-4884 — Monday to Friday, 8am to 5pm.