
As winter approaches, the cold can put significant strain on your plumbing system. A frozen pipe may seem like a minor problem at first, but
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A leaking pipe rarely stays a small problem for long. What starts as a faint drip behind a wall or under a sink can quietly swell into warped flooring, mold growth, or a spiking water bill before anyone notices. MT Dunn Plumbing specializes in fast, precise leaking pipe repair for Hillsboro homeowners, tracking down hidden leaks and fixing them at the source instead of just patching symptoms. Our team combines leak detection equipment with hands-on repair skill, so every job ends with a pipe that’s actually fixed, not just quieted down.
Our highly experienced plumbing professionals will contact you for a free estimate and consultation.








MT Dunn Plumbing provides dependable plumbing services for homes and businesses across Hillsboro. Customers appreciate the team’s fast service, friendly attitude, and quality workmanship. No matter the size of the job, they work hard to provide reliable solutions and a hassle-free experience.
EXCELLENT Based on 95 reviews Posted on Google RubenTrustindex verifies that the original source of the review is Google. Late Sunday night we had an emergency leak, where we were forced to shut off water to entire house. I reach out MT Dunn plumbing and in a short notice and within 35 mins Irich was able to come over and fixed our leak. Truly appreciate the quick response especially being late Sunday night around 9-10pm!!!Posted on Google Matt CorradoTrustindex verifies that the original source of the review is Google. We inadvertently discovered our kitchen and washing machine drains were disconnected and dumping water underneath the house, in the crawlspace. We may never know why or for how long but Irich responded to my call personally and set a date within a single business day knowing we'd couldn't use the kitchen until it was fixed. He was here on time and had it repaired in a half day. Proper invoicing and estimates based on labor and parts always makes me happy. So glad to have a plumber now. I won't go anywhere else.Posted on Google Nick A.Trustindex verifies that the original source of the review is Google. I have used MT Dunn many times, mostly smaller projects. Usually available within 24-48 hours. Always professional and courteous. Wouldn’t hesitate to use them again!Posted on Google MTrustindex verifies that the original source of the review is Google. Excellent service start to finish. Arrived on time, responded quickly to request. Very friendly and professional. Everything handled with care and expertise. Shower head repair. Hillsboro Area.Posted on Google Zari MootzTrustindex verifies that the original source of the review is Google. This is the 3rd time we've used M T Dunn Plumbing, and the 3rd time we've have a 5-star experience. I would recommend them to everyone!Posted on Google Rie JacobsTrustindex verifies that the original source of the review is Google. Irich is very easy to work with and always shows up on time. He’s honest, professional, and very efficient. His work is fast but never rushed. He does things the right way and never cuts corners. Over the past three years, he has helped us three times: installing a water heater, replacing some toilet parts, and installing a new toilet. Every job was done quickly and professionally. He’s also very respectful of our home and keeps things clean while working. On top of that, he’s a genuinely kind person—even great with our dog 🐶 His pricing is fair and he never overcharges. It’s hard to find someone this trustworthy. I highly recommend him. Thank you Irich!Posted on Google Brian SecrestTrustindex verifies that the original source of the review is Google. I've had MT Dunn plumbing handle a couple of plumbing issues we've had over the last few years. Our most recent visit was due to a leaking valve going to our guest bathroom toilet. It was stripped and Irich was able to fix it in short order. Friendly, transparent, punctual, and knowledgeable. We highly recommend Dunn plumbing and Mikes son Irich.Posted on Google Cooper HowardTrustindex verifies that the original source of the review is Google. This is the second time I’ve used M T Dunn Plumbing and both experiences have been great. I recently discovered I had a leaky pipe underneath my cement driveway. M T Dunn came out and assessed the situation and gave me multiple ways get it fixed with varying costs. I decided what I wanted to do and they came out a few days later and took care of it. They cut a hole in the cement, found the leak, fixed it and patched the driveway in a single day which will end up saving me a ton of money. They’re very fair and have gotten things done quickly and easily both times I’ve needed them.Posted on Google philip salvadorTrustindex verifies that the original source of the review is Google. Very upfront on pricing, finished the work as expected.Posted on Google Daniel CruzTrustindex verifies that the original source of the review is Google. Irich is great and excellent work and did same day service..I would highly recommend mt plumbing for anyone
Not every plumber treats a leak the same way, and that difference shows up in how long the fix actually lasts.
Deep Local Knowledge
Familiar with Hillsboro's common pipe materials, soil conditions, and building layouts.
Leak Detection Equipment
Acoustic sensors and moisture meters locate leaks without tearing apart your home.
Licensed, Insured Plumbers
Every technician is trained, background-checked, and fully insured for your protection.
Repair, Not Just Patchwork
We address the root cause so the same leak doesn't return in a few months.
Upfront, Written Pricing
You'll know the full repair cost before any tools come out with complete transparency.
Minimal Property Disruption
Targeted access points mean less drywall removal and less mess to clean up.
Same-Day Availability
Most leak calls in Hillsboro are scheduled and resolved within the same day.
Straight-Talk Diagnosis
We explain what's actually wrong in plain language, no scare tactics or upselling.
Full-Service Follow-Through
From detection to repair to a final leak-free check, we handle the whole job.
Community Trust
A long-standing name Hillsboro homeowners call first when pipes start acting up.
Put together, this is why MT Dunn Plumbing is the name Hillsboro residents rely on when a leak needs fixing right.
Fixing a leak properly takes more than tightening a fitting. Here’s how our team approaches every job:
Before touching a single pipe, we ask about water stains, sounds, recent bills, or damp spots you’ve noticed. Your observations often point us toward the leak faster than any tool.
Using acoustic listening devices, thermal imaging, and moisture meters, technicians narrow down the leak’s exact location behind walls, under slabs, or beneath fixtures.
We test system pressure and inspect nearby fittings, since a leak in one spot can sometimes signal wider pressure or corrosion issues elsewhere in the line.
Once the leak is pinpointed, we open only the smallest area necessary, whether that’s a small drywall cut, an access panel, or a section of exposed pipe.
The specific section is isolated so repairs can proceed safely without cutting water to the entire house whenever possible.
Corroded, cracked, or split sections are cut away cleanly, leaving solid, healthy pipe to reconnect to.
Depending on the pipe material and damage, we use soldered joints, push-fit couplings, epoxy sleeves, or full section replacement, whichever holds up best long-term.
Before closing anything up, the repaired line is pressure-tested to confirm the leak is fully resolved and no new weak points were introduced.
Drywall cuts, access panels, or flooring disturbed during the repair are closed up or left ready for your own finishing work, based on your preference.
We walk you through what was found and fixed, and flag any drying, cleanup, or moisture-related follow-up worth addressing.
Most leak repairs in Hillsboro homes are completed in a single visit, typically between 1 and 3 hours depending on access and pipe location.
A leak doesn’t always announce itself with a puddle. Call MT Dunn Plumbing if you notice:
Understanding the cause helps prevent the next leak. Common culprits include:
From what we’ve seen, the honest answer depends on the pipe’s overall condition, not just the one leak in front of you. At MT Dunn Plumbing, we’ve seen how looking beyond the immediate leak saves Hillsboro homeowners from either overpaying for an unnecessary replacement or underinvesting in a line that’s already failing.
A single leak is sometimes an isolated event, and sometimes a warning sign. A young, otherwise healthy pipe with one damaged section is usually a straightforward repair, while a pipe that’s already corroded throughout, or one that’s leaked more than once in the last year, is telling you something bigger is going on underneath the surface. That’s a significant distinction, and time and again, it’s exactly why we look at the full picture before recommending anything.
We’ve been called out to “fix” the same stretch of pipe two or three times for different homeowners who kept patching instead of replacing. In almost every case, the cost of those repeated repairs ended up higher than a single, proper section replacement would have cost from the start.
The cost of repeated patch repairs is minor at first, but it adds up fast compared to a single, proper section replacement done right the first time. We think of every repair as needing to make sense on its own, you’re not just fixing today’s leak, you’re deciding whether you’ll be back here again in a few months.
Homes with aging galvanized steel, old copper with pinhole leaks, or a history of repeated repairs in the same area, in particular, deserve a full look rather than treating each leak as its own separate emergency.
We’ll always repair when repair makes sense, and we’ll tell you honestly when it doesn’t. Our team isn’t interested in selling replacements homeowners don’t need, but we’re just as unwilling to keep patching a line we know is on its way out.
Our leaking pipe repair services cover a wide range of residential and commercial plumbing issues throughout Hillsboro.
Type of Pipe Leak
Pinhole Leaks
Joint Leaks
Slab Leaks
Burst Pipe Leaks
Corroded Pipe Leaks
Drain Pipe Leaks
Frozen Pipe Leaks
Underground Pipe Leaks
Appliance Connection Leaks
Valve and Fixture Leaks
Where It Commonly Occurs
Copper water supply lines
Pipe fittings and connections
Beneath concrete foundations
Indoor and outdoor water lines
Aging galvanized or metal pipes
Kitchen, bathroom, and utility drains
Exposed or uninsulated pipes
Water service lines
Water heaters, dishwashers, washing machines
Shut-off valves, faucets, and hose bibs
How We Repair It
Repair damaged section or replace affected pipe.
Tighten, reseal, or replace faulty fittings.
Locate leak and perform targeted repair or rerouting.
Replace broken pipe and restore water service.
Replace deteriorated pipe sections with durable materials.
Repair cracked drain lines and reseal joints.
Replace split sections and improve pipe insulation.
Detect leaks and repair using minimally invasive methods.
Replace worn connectors, valves, or supply lines.
Repair or replace leaking valves and fixtures.
No matter the source of the leak, MT Dunn Plumbing provides reliable leaking pipe repair solutions to restore your plumbing system quickly and help prevent further water damage.
Fast Response • Upfront Pricing • Guaranteed Work
MT Dunn Plumbing delivers dependable leaking pipe repair services in Hillsboro, OR, locating hidden leaks accurately and fixing them at the source so they stay fixed.
A burst or fast-worsening leak can’t wait for a scheduled appointment, and our team is set up to respond accordingly.
Fast Dispatch
Emergency leak calls are prioritized and technicians head out right away.
24/7 Coverage
Available nights, weekends, and holidays for leaks that won’t wait.
Rapid Shutoff Guidance
We’ll walk you through shutting off water safely while help is en route.
On-Site Leak Detection
Equipment arrives ready to locate the source the moment we’re on-site.
Fast, Clear Communication
You’ll know what’s happening and what it will cost before work begins.
Damage Control First
Stopping the leak and limiting water damage is always the immediate priority.
Same-Visit Repairs
Most emergency leaks are fully repaired during the initial visit.
Transparent Emergency Rates
No hidden surcharges sprung on you after the fact.
Calm, Experienced Technicians
Skilled at working efficiently under pressure without cutting corners.
Post-Repair Check-In
We follow up to confirm the fix is holding and nothing else has surfaced.
When a pipe is actively leaking, MT Dunn Plumbing is built to get to you fast and get it stopped right.
Most leaks are diagnosed and repaired the same day, often within 1 to 3 hours depending on pipe access and location.
Costs vary by damage and access, but addressing a leak early is almost always cheaper than waiting for it to worsen.
Yes, ongoing moisture from a hidden leak creates ideal conditions for mold, especially behind walls or under flooring.
If the leak is severe, shutting off your main water valve can limit damage; our team can guide you over the phone.
Rising water bills, damp spots, musty smells, or a water meter that keeps moving with everything off are common signs.
Yes, We specialize in repairing and upgrading aging plumbing systems while preserving your home’s existing infrastructure.
Yes, MT Dunn Plumbing provides leaking pipe repair for both residential and commercial properties throughout Hillsboro.
A small leak today is the expensive repair you’re trying to avoid tomorrow. Call MT Dunn Plumbing to get your leaking pipe found, diagnosed, and properly repaired by a team Hillsboro homeowners trust.
Contact MT Dunn Plumbing today to schedule your repair.
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.

As winter approaches, the cold can put significant strain on your plumbing system. A frozen pipe may seem like a minor problem at first, but

Clogged drains are one of those household problems that can quickly turn from a minor inconvenience into a major headache. Slow-draining sinks, backed-up showers, and

Most homeowners rarely think about their plumbing system until something goes wrong, a faucet starts dripping, a drain backs up, or the water heater suddenly
At M T Dunn Plumbing, we proudly serve Hillsboro, Beaverton, Portland, Tigard, Lake Oswego, Sherwood, Tualatin, West Linn, Wilsonville, Aloha, Newberg, Gaston, Banks, North Plains, and the surrounding Portland metro areas.
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