Seattle Sewer Line Repair Cost: How Three Quotes Saved Us $8,000
We've owned our house for nearly five years now, and in that time we've poured money into the least Instagrammable upgrades imaginable: a new roof, a furnace replacement and AC upgrade, and every single appliance in the house. This year's glamour project? A hole in our sewer line.
I'm sharing the full story (all three estimates, what each company proposed, and what we ultimately paid) because shopping for a sewer repair turned out to be one of the best crash courses in homeownership I've had in a while. If you take one thing from this post, let it be this: always get three quotes. Ours ranged from about $7,200 to about $15,300 for the same broken pipe. That's an $8,000 spread — some of it scope, and some of it two companies pricing nearly the same repair thousands of dollars apart.
A Little Backstory
When we bought the house in 2021, we did what every buyer should do: a sewer scope. That inspection told us a significant portion of the line under the driveway had already been replaced with a liner. That one piece of paper from five years ago became the most valuable tool in this entire process, because when contractors started making recommendations, I already knew what was under my yard.
Fast-forward to this summer: a break in the original 4" concrete pipe, roughly nine feet down, under our front walkway. Time to get quotes.
Company 1: The One That Couldn't See the Whole Picture
Company 1 was the first call. We brought them out for a quick hydro-jet and scope of the line. The problem: they couldn't get their camera past the broken section of pipe, which meant they never laid eyes on the existing liner under the driveway.
Their estimate was for a spot repair: excavate about 8'6" down beneath the walkway, remove the broken section of concrete pipe, hydro-jet the line in both directions, install a roughly four-foot patch upstream of the break, replace the exposed broken section with new PVC, then backfill, restore the walkway, and scope the line from the interior cleanout to confirm it's flowing. A reasonable scope, priced at $13,592.
Hold onto that number, because here's the punchline: it's nearly double what we ultimately paid another company for essentially the same repair. And they quoted it without ever seeing the full line. When a contractor can't fully assess the problem, you can't fully assess the bid — which is exactly why you keep shopping.
Company 2: The Hard Sell
Company 2 had better equipment and got their camera past the break. They confirmed exactly what our 2021 scope showed: the liner under the driveway was intact and in great condition.
And then they recommended re-lining the entire line anyway.
Their reasoning: there's a small five-foot section of original concrete pipe between the end of the driveway and the city main. It's in perfect working order today, but it could fail someday. Their bid (the highest of the three at $15,283) priced in replacing pipe that wasn't broken.
The experience didn't help their case. When I pointed out that their bid was a couple thousand dollars above the others, the response wasn't "let's see how we can work with you,” it was a lengthy explanation of why their price was justified, delivered with a healthy side of being talked down to. It felt like a sales push, not a partnership.
I'll add a postscript here, because I think it matters: I called the owner afterward to share the experience, and he genuinely appreciated the feedback. I got the sense this wasn't the first job they'd lost to over-scoping. Good companies want to know this stuff — and as a customer, you're allowed to tell them!
Company 3: The Trusted Referral
The final estimate came from a referral through my office, and the difference was immediate. They were the most conservative of the three and saw no reason to re-line a pipe that was working perfectly.
Their take on that five-foot section of original concrete near the main was the most useful piece of advice in this whole saga: because it sits so close to the city main, it's actually smarter to wait. If that section ever fails, the repair might fall to the city depending on exactly where the failure occurs. Paying today to replace pipe that might someday be someone else's responsibility? No thank you.
Their scope was a true spot repair: excavate down to the break, replace the damaged section with new PVC, add a cleanout for future access, scope the line downstream to confirm everything's flowing, and put the yard back together. Their bid: $7,186.
That's the one we chose. It fixed the actual problem for roughly half the price of the highest bid.
What I Learned
(So You Don't Have to Dig a 9-Foot Hole to Learn It)
Get three quotes. Every time. Not two. Three. With only two bids, you can't tell which one is the outlier. With three, patterns emerge — and in our case, the pattern saved us over $8,000.
Compare scope, not just price — then compare price within the same scope. Our bids weren't three prices for the same job. One priced in replacing pipe that wasn't broken, and the two spot-repair bids for essentially the same work were $6,400 apart. Read the line items. Ask each contractor to explain exactly what they're proposing and why. If one bid includes work another doesn't, ask both about it.
Separate "broken" from "could break someday." Almost anything in your house could fail eventually. That doesn't mean you should replace it today. Ask directly: "Is this necessary, or is this recommended?" A good contractor will answer honestly.
Know where your responsibility ends. Sewer lines near the city main are a gray area. Sometimes the city is on the hook for failures there. Before you pay to replace anything close to the property line, ask your utility what's yours and what's theirs.
Keep your inspection records. Our 2021 sewer scope was the single most valuable document in this process. It gave me the confidence to push back on unnecessary work. When you buy a home, scope the sewer, and keep the report forever.
Trust your gut on the people. The company that pressured, condescended, and defended its price lost the job. The company that came recommended, listened, and solved the actual problem earned it. That instinct is data. Use it.
The Bottom Line
Getting multiple quotes isn't just about price shopping, it's about education. Each estimate taught me something the others didn't, and together they gave me the full picture no single contractor provided. It's one of the best habits you can build as a homeowner: it will save you thousands of dollars and teach you more about how your house works than you ever planned to know.
And if you're staring down a repair of your own and want a second set of eyes on your quotes (or a referral to people I actually trust!) reach out. This is exactly the kind of thing I love helping with.