Same-Day Service
Most service calls handled same-day across Spokane and Coeur d'Alene.
Trenchless Pipe Lining
A brand-new sewer pipe — installed inside the old one.
Cure-in-place pipe (CIPP) lining is the industry-standard trenchless solution for old, cracked, or root-damaged sewer lines. We install a resin-saturated felt liner through an existing cleanout, inflate it against the host pipe, and cure it in place. The result is a seamless, jointless pipe inside your old line — typically warrantied 10–50 years.
No yard tear-out. No driveway demolition. No landscape restoration. Most lining projects are completed in a single day, and you can use your plumbing again the same evening.
- Yard stays intact No trenching across the lawn, driveway, or landscaping.
- One-day install Most projects done in a single day with same-evening plumbing use.
- 10–50 year warranty Manufacturer-backed liner warranty plus our labor warranty in writing.
- Stops root intrusion Seamless, jointless liner — roots have nowhere to enter.
When CIPP Makes Sense
Is your sewer line a candidate for lining?
Most aging sewer lines are good candidates — but not every one. A camera inspection tells us for sure. Common scenarios where CIPP wins:
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Root intrusion at joints
Old clay or cast-iron joints leak — roots find them. CIPP seals every joint at once.
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Cracked or offset pipe
Multiple cracks or small offsets along the run — sealed by the liner in one pass.
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Recurring main backups
When cabling and jetting won't hold for more than a few months, structural fix is needed.
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Mature trees over the line
Don't want to lose a 60-year-old tree to dig up the line? Trenchless avoids it.
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Driveway or hardscape above
Stamped concrete, pavers, or finished landscaping — CIPP avoids tearing it out.
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Old clay or Orangeburg pipe
Pre-1970s clay, cast iron, and Orangeburg lines are CIPP's sweet spot.
How It Works
CIPP from camera to cure
Every step is done in-house — no subcontractors, no hand-offs.
- Pre-line camera Confirm the line is a CIPP candidate and identify any spot repairs needed first.
- Hydrojet cleaning Scour the host pipe completely so the liner bonds properly.
- Measure & order liner Cut a custom-length liner sized to your pipe diameter and run.
- Resin saturation Liner is wet-out with structural epoxy resin in a controlled vacuum environment.
- Inversion install Liner is inverted into place through an existing cleanout — no excavation.
- Cure in place Hot water or steam cures the resin, hardening the liner against the host pipe.
- Reinstate connections Robotic cutter reopens any branch lines (laterals) that were lined over.
- Post-cure camera Final video confirms a smooth, seamless interior and proper connections.
How It Works
A CIPP project, start to finish
From first phone call to final walk-through — usually one day on-site.
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Free home assessment
A camera inspection and access-point review confirms whether CIPP is a fit for your line.
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Fixed-price quote
CIPP, traditional replacement, and spot-repair options — all in writing, no pressure.
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Install day
Most installs done same-day. Plumbing is back in use the same evening.
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Walk-through
Post-cure camera footage, warranty registration, and any clean-up — all handled before we leave.
Why Choose Mainstream
Upfront Pricing
Flat-rate pricing approved before work begins — no surprises on the invoice.
Licensed & Insured
Fully licensed in Washington and Idaho, bonded, and insured for your protection.
Satisfaction Guaranteed
If it isn't right, we make it right. Period.
Old sewer line? Skip the trench.
Same-day service across Spokane & Coeur d'Alene — flat-rate pricing, no surprises.
What Our Customers Say
Don't just take our word for it — hear from our satisfied customers
★★★★★
Ricky Saldana the technician that came out was fantastic. He was so knowledgeable about my plumbing issues and his recommendations were spot on. He was on time and very pleasant to work with. I would highly recommend him for any plumbing work that needs to be done.
Thanks Ricky for all of your input.
★★★★★
Tanner is a excellent Plummer repair man, he was on time. And he repair my outside water faucet and put in inside water faucet box for future repairs if needed. He was very knowledgeable in the work he is doing. And very present to talk to. I will be calling Mainstream for any future home repairs
Maintenance Membership
Join the Care Club
Total home service care, on a schedule.
Members get priority scheduling, seasonal HVAC tune-ups, an annual plumbing & electrical safety inspection, and exclusive discounts — for less than the cost of a single emergency call.
- Priority scheduling
- Seasonal HVAC tune-ups
- Annual safety inspection
- Exclusive member discounts
- Free dispatch on repairs
- No long-term contracts
Pipe Lining — Frequently Asked Questions
How long does a CIPP liner last?
Manufacturer warranties run 10–50 years depending on the system, but the structural design life of most CIPP liners is 50+ years. The liner is a stand-alone structural pipe inside your old one — it doesn’t depend on the host pipe to function.
How long does the install take?
Most residential CIPP projects are completed in a single day from access to cure. You’ll be without plumbing service for a few hours during the cure, but you can typically use everything the same evening.
What lines can be lined?
Most 4″–8″ residential sewer lines made of clay, cast iron, Orangeburg, or PVC. The line has to be intact enough to host the liner — fully collapsed sections need spot repair or excavation first. The pre-line camera tells us for sure.
Is CIPP cheaper than replacement?
Pure pipe-cost is sometimes higher with CIPP, but total project cost is almost always lower because there’s no excavation, restoration, or landscape repair. For lines under driveways, mature landscaping, or hardscape, CIPP is usually a fraction of the total cost of an open-trench replacement.
What about my branch lines (laterals)?
The robotic cutter reopens lined-over branches. Any branches that need lining themselves (e.g., long offshoots) can be lined separately, or junction-sealed where they tie in.
Is financing available?
Yes. CIPP projects are typically a fraction of the cost of full excavation, but still a major plumbing investment. We offer flexible financing — including 0% APR for qualified buyers — and walk through the options during the quote.
*Offers cannot be combined with other promotions or applied to dispatch fees. No cash value. Must present offer at time of service. Call for details.
