02/25/2026
Your sewer line is acting up. The plumber quotes you $2,500 for a repair. Another plumber says you need a full replacement for $10,000. Both seem legit. Both have good reviews. So who's right?
This exact scenario happens to Denver homeowners every single week. And honestly? Sometimes both plumbers are right. The real question isn't repair vs. replacement — it's which one makes sense for YOUR specific situation.
Here's what actually matters when you're making this call:
**How old is your pipe?** If your home was built before 1970, you've probably got clay or cast iron pipes. Clay cracks easily after 50+ years in Colorado's shifting soil. Cast iron rusts from the inside out. A repair might buy you 3-5 years, but you'll likely face another repair (or full failure) pretty soon. If your pipes are under 30 years old and made of PVC, repair usually works great.
**How much of the line is damaged?** A single crack from a tree root? That's repair territory. Damage in multiple spots throughout the line? Replacement starts making more financial sense. Camera inspection shows you exactly what you're dealing with — no guessing.
**What's your timeline?** Staying in your home for the next 15 years? Replacement gives you decades of peace. Selling within 5 years? Buyers increasingly ask about sewer lines during inspection. A brand new line adds value and removes negotiation leverage.
Here's the math nobody tells you: Three repairs at $2,500 each over 10 years = $7,500. One replacement at $9,000 lasts 50-100 years. After the second repair, you've basically paid for replacement anyway.
The tricky part is that some contractors push replacement when repair would work fine. Others suggest repair on pipes that are clearly failing throughout. That's why getting a camera inspection from someone you trust matters so much.
And if your house has Orangeburg pipe (black tar-paper-looking material common in 1940s-1970s builds)? Always replacement. That stuff turns to mush when wet. No repair holds.
One more thing Denver homeowners should know: trenchless replacement costs more upfront but saves you thousands in landscape restoration. Traditional dig-and-replace means tearing up your yard, driveway, or patio. Trenchless keeps almost everything intact. Factor restoration costs into your total when comparing quotes.
What's been your experience with this decision? Did you repair or replace?