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A failing sewer line is more than an inconvenience, it’s a threat to your home’s foundation, your yard, and your family’s health. MT Dunn Plumbing specializes in fast, lasting sewer repair solutions for Hillsboro homeowners, using modern trenchless techniques whenever possible to fix broken, cracked, or collapsed lines without tearing up your property. From minor leaks to full pipe replacement, our licensed technicians diagnose the problem correctly the first time and repair it right, so you’re not calling us back for the same issue next year.
Our highly experienced plumbing professionals will contact you for a free estimate and consultation.
MT Dunn Plumbing is proud to serve homeowners and businesses in Hillsboro with dependable plumbing services. Customers trust the team for their professional approach, quality work, and reliable service. No matter the project, they focus on providing lasting solutions and a positive customer experience.
Sewer repair is not a job for guesswork, one wrong move underground can turn a simple fix into a major expense.
Licensed and Insured
Fully licensed plumbers who meet Hillsboro's code requirements on every repair.
Trenchless Options
Pipe lining and pipe bursting methods that repair sewer lines with minimal digging.
Upfront Pricing
Written estimates before work begins, no surprise charges once the job starts.
Root-Cause Repairs
We fix what actually failed, not just the symptom that's showing up in your yard or basement.
Warrantied Workmanship
Repairs backed by a written warranty, so you're covered if anything resurfaces.
Modern Equipment
Hydro-jetting, pipe locators, and camera-verified repairs for accuracy at every step.
Same-Week Scheduling
Most non-emergency repairs scheduled and completed within days, not weeks.
Respect for Your Property
Careful site restoration after excavation, including soil and landscaping cleanup.
Local Knowledge
Familiar with Hillsboro's older neighborhoods, soil conditions, and common sewer line issues in the area.
Straight Answers
We explain what's wrong, why it happened, and what repair actually solves it.
Hillsboro homeowners choose MT Dunn Plumbing because we treat every sewer line like it’s connected to our own home.
Every sewer repair follows a structured process built around accuracy and minimal disruption to your property.
Before any repair begins, technicians run a camera through the line to confirm the exact cause, location, and severity of the damage.
Using electronic locating equipment, technicians mark the precise depth and position of the damaged section on the surface above.
Based on pipe material, damage type, and access, we determine whether trenchless lining, pipe bursting, spot repair, or open excavation is the right fit.
Technicians walk you through the footage, the recommended method, and a firm written quote before any ground is disturbed.
Utility lines are marked, work zones are protected, and any landscaping in the immediate area is carefully set aside for restoration later.
Hydro-jetting or mechanical cutting removes roots, debris, or scale so the repair method can be applied to a clean pipe surface.
Depending on the chosen method, crews install a cured-in-place liner, burst and replace the old pipe, cut in a spot repair, or excavate and replace the damaged section directly.
Once the repair is complete, technicians test the line to confirm proper flow, watertight seals, and correct slope.
A final camera pass confirms the repair meets specification and that no additional issues remain in the line.
Backfilled trenches are compacted properly, and any disturbed lawn or landscaping is restored as close to original condition as possible.
Most trenchless sewer repairs are completed in a single day; full excavation replacements typically take one to three days depending on line length and depth.
Sewer damage often starts small and gets expensive fast. Call us if you notice:
Understanding the cause helps us recommend the right long-term fix, not just a temporary patch.
Proper sewer flow starts with identifying the source of the problem and applying the right repair solution.
MT Dunn Plumbing restores dependable sewer performance with targeted repairs designed for long-lasting results.
From what we’ve seen, the answer is a firm yes in most cases, and it’s usually our first recommendation. At MT Dunn Plumbing, we’ve seen how trenchless repair protects the mature landscaping and finished hardscaping that make older Hillsboro properties so valuable in the first place.
Older Hillsboro neighborhoods often sit on established lots with mature trees, finished landscaping, and driveways or patios that homeowners don’t want disturbed. A traditional repair might assume the only path to a fixed pipe is digging straight through everything above it, but trenchless methods let us fix the pipe from the inside out, accessed through a small entry point, without tearing out everything built above the line. That’s a significant advantage, and time and again, it’s exactly why we lead with this option on older properties.
We’ve evaluated plenty of aging sewer lines where trenchless repair solved the problem completely while leaving the yard, driveway, and landscaping untouched. In almost every case, homeowners were relieved to learn they didn’t have to choose between a working sewer line and the property improvements they’d invested in over the years.
The value of an honest recommendation is significant, since trenchless isn’t the right fit for every situation. Severely collapsed sections, extreme bellies, or lines with major misalignment sometimes still require traditional excavation to get a lasting result, and we think of that honesty as the whole point, you’re not just getting a repair, you’re getting the method that actually fits your pipe’s condition.
Homes with established landscaping, mature trees, or hardscaping near the sewer line, in particular, benefit most from exploring trenchless first, since it’s precisely where the disruption of traditional excavation would be felt the most.
Both options come with real trade-offs in cost, timeline, and disruption, and you deserve to understand them clearly. Our team walks through both before recommending anything, so you can decide what actually makes sense for your property and your budget.
Every sewer repair begins with a thorough inspection to identify the actual cause of the problem. We use the inspection results to recommend the most effective and cost-efficient repair instead of applying a one-size-fits-all solution.
Inspection Finding
Minor pipe crack
Tree root intrusion
Broken or collapsed pipe
Offset pipe joints
Corroded cast iron pipe
Bellied (sagging) sewer line
Heavy grease buildup
Recurring blockages
Leaking pipe joints
Multiple damaged sections
Recommended Sewer Repair
Spot pipe repair or sectional replacement
Hydro jetting followed by root removal and pipe repair
Partial or full sewer line replacement
Joint realignment or replacement of affected section
Pipe replacement or trenchless pipe lining where suitable
Excavation and replacement of the sagging section
Professional hydro jetting and system cleaning
Video inspection followed by targeted pipe repair
Joint sealing or replacement of damaged fittings
Comprehensive sewer line replacement or trenchless rehabilitation
By matching inspection findings with the appropriate repair method, MT Dunn Plumbing delivers reliable sewer repairs that restore proper flow while minimizing unnecessary work and long-term costs.
Fast Response • Upfront Pricing • Guaranteed Work
MT Dunn Plumbing delivers trenchless and traditional sewer repair services throughout Hillsboro, OR, backed by camera-verified diagnostics, upfront pricing, and warrantied workmanship for lasting results.
A backed-up or collapsed sewer line can’t wait, and our team is set up to respond fast.
Immediate Dispatch
Emergency crews prioritize active sewer failures and backups over routine calls.
24/7 Emergency Line
Available nights, weekends, and holidays for urgent sewer situations.
Rapid Diagnosis
Camera equipment deployed on arrival to identify the failure point quickly.
Temporary Containment
Immediate steps taken to stop active backups and limit water damage.
Clear Emergency Pricing
Upfront cost estimates provided before any emergency repair begins.
Full-Scope Repairs
Emergency crews can move straight from diagnosis into permanent repair when conditions allow.
Coordination With Restoration
Referrals and guidance if water damage cleanup is needed alongside the repair.
Post-Repair Follow-Up
A check-in after the fix to confirm the line is holding and flowing properly.
When a sewer emergency hits, MT Dunn Plumbing is built to respond quickly and fix it correctly the first time.
Costs vary based on damage severity and repair method, but trenchless options typically cost less than traditional excavation due to reduced labor and restoration work.
Trenchless repairs are often finished in a single day, while excavation-based replacements can take one to three days depending on the length and depth of the damaged section.
Coverage varies by policy and cause of damage, so we recommend checking with your insurance provider directly; we’re happy to provide documentation to support a claim.
A camera inspection determines this. Isolated cracks or small breaks often only need a spot repair, while widespread deterioration usually calls for full replacement.
Yes, We repair residential and commercial sewer lines, addressing leaks, blockages, pipe damage, and flow issues with dependable, lasting solutions.
Yes, MT Dunn Plumbing repairs partially collapsed sewer lines using targeted repair or replacement methods to restore reliable, long-lasting wastewater flow safely.
A damaged sewer line only gets more expensive the longer it’s ignored. Call MT Dunn Plumbing to schedule a sewer repair evaluation in Hillsboro and get a clear plan, honest pricing, and a repair built to last.
Contact MT Dunn Plumbing today to book your sewer repair appointment.
At M T Dunn Plumbing, our team is committed to delivering dependable plumbing solutions for residential and commercial properties throughout Sherwood and the surrounding communities.
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