Pressure Hold Test
We isolate the repaired line and pressurize it to 80-100 PSI for 30-60 minutes. A calibrated gauge shows whether the line holds. If pressure drops, we know the repair failed and we find the leak before we leave.
Pressure-tested proof your slab leak repair actually held
Post-Repair Leak Testing Woburn MA You Can Trust
Post-Repair Leak Testing Woburn MA is the final step that proves your slab leak repair worked. We re-pressurize the line, scan the slab with thermal imaging, and hand you written results. If you just had under-slab work done in Middlesex County, this is how you confirm the fix before the concrete goes back down. Call 781-452-3771.
Careful work. Honest options.
About this service
What Post-Repair Leak Testing Woburn MA Involves
Post-Repair Leak Testing Woburn MA is the diagnostic process that confirms a repaired water or sewer line is holding pressure and not leaking into the slab. We isolate the repaired section, pressurize it to 80-100 PSI, and watch the gauge for 30-60 minutes. If pressure holds, the repair is sound. If it drops, we know exactly where to look next. No guesswork, no torn-up floors twice.
Woburn's older housing stock, especially around Woburn Center and the Montvale area, has copper pipes that have been under slab since the 1950s and 1960s. When you've just paid for a slab leak repair, you want proof it worked. That's where post-repair leak verification Woburn MA comes in. We also serve homeowners near Four Corners who need affordable post-repair leak verification after a water line repair, and we offer same-day post-repair leak testing Woburn MA when schedules allow.
- ✓ Confirms the Repair Held
- ✓ Prevents Repeat Excavation
- ✓ Documents for Insurance
- ✓ Protects Your Foundation
What's included
What Post-Repair Leak Testing Includes
Every post-repair leak testing job includes pressure testing, thermal imaging, moisture checks, and a written report. We don't charge extra for documentation. If we find a problem, we tell you exactly where it is and what it takes to fix it.
Thermal Imaging Scan
We run a thermal imaging camera across the slab to check for warm floor spots or cold patches. These indicate moisture still under the slab. The scan takes 10-15 minutes and covers the entire repair area plus a 5-foot perimeter.
Moisture Meter Readings
We take moisture meter readings at multiple points around the repair. Readings above 17% indicate the concrete is still wet. We compare readings to a dry reference point to confirm the slab is drying out.
Written Test Report
You get a one-page report with pressure readings, thermal images, moisture data, and a pass/fail determination. We email it the same day. This is the document your insurer wants to see before closing a claim.
Leak Pinpointing (If Needed)
If the pressure test fails, we use acoustic listening devices and electronic leak detection wands to pinpoint the leak. We mark the spot on the slab so you know exactly where the problem is. No extra charge for this step.
How it works
Our Post-Repair Leak Testing Process
We start by inspecting the repaired section and surrounding slab for moisture, cracks, or discoloration. A moisture meter confirms whether the concrete is dry or still holding water. This takes 15-20 minutes and tells us if the repair area looks sound before we pressurize.
We isolate the repaired line from the rest of your plumbing using shut-off valves and test caps. This ensures we're testing only the repaired section, not the entire system. We attach a calibrated pressure testing gauge and bring the line up to 80-100 PSI.
The line stays pressurized for 30-60 minutes. We watch the gauge for any drop. A stable reading means the repair is holding. A drop of 2 PSI or more means there's still a leak, and we use acoustic listening devices to pinpoint it before we leave.
We run a thermal imaging camera across the slab to check for temperature anomalies that indicate moisture. Warm floor spots or cold patches show up clearly on the camera. This confirms whether water is still moving under the slab even if pressure holds.
You get a one-page report with pressure readings, thermal images, moisture meter results, and our pass/fail determination. We email it the same day. If your insurer needs documentation, this report has everything they ask for.
STEP 01Visual Inspection
We start by inspecting the repaired section and surrounding slab for moisture, cracks, or discoloration. A moisture meter confirms whether the concrete is dry or still holding water. This takes 15-20 minutes and tells us if the repair area looks sound before we pressurize.
Tools & methods
Tools and Methods We Use
RIDGID Pressure Testing Gauges
Calibrated gauges that pressurize the repaired line to 80-100 PSI and hold it for 30-60 minutes. We read the gauge every 5 minutes and log the results.
Fluke Thermal Imaging Cameras
Thermal cameras that show warm floor spots and cold patches indicating moisture under the slab. We scan the repair area plus a 5-foot perimeter.
Acoustic Listening Devices
Devices that pick up the sound of water escaping a pipe. We use them to pinpoint leaks as small as 0.1 GPM when a pressure test fails.
Electronic Leak Detection Wands
Wands that detect moisture and pressure changes in the slab. We run them across the repair area to confirm no water remains.
Moisture Meters
Meters that read moisture content in concrete. Readings above 17% indicate the slab is still wet. We compare readings to a dry reference point.
Video Pipe Inspection Cameras
Cameras that show the inside of the repaired pipe. We use them on sewer line repairs to confirm the line is clear and the repair is smooth.
Real results
Before and after.
Post-Repair Leak Testing
Failed Repair Caught Before Concrete Pour
A homeowner in Woburn Center had a slab leak repaired and the contractor scheduled concrete pour for the next day. No testing was planned. The homeowner called us for a second opinion.
After: Our pressure test showed a 4 PSI drop over 45 minutes. We used acoustic listening devices to pinpoint a fitting that wasn't sealed properly. The contractor fixed it, we retested, and the line held at 95 PSI for 60 minutes.
Book this service →
Post-Repair Leak Testing
Insurance Claim Closed in 48 Hours
A Montvale homeowner had a water line leak repaired but the insurance adjuster wouldn't close the claim without verification. The homeowner was waiting weeks for reimbursement.
After: We ran the full test protocol, documented pressure readings and thermal images, and emailed the report the same day. The adjuster accepted it and closed the claim within 48 hours. The homeowner was reimbursed $4,200.
Book this service →
Post-Repair Leak Testing
Repeat Warm Floor Spots Resolved
A homeowner near Four Corners had a slab leak repaired but warm floor spots kept coming back. The original repair was never tested after completion.
After: Our thermal imaging scan showed heat escaping from a second pinhole leak 3 feet from the original repair. We pinpointed it, the homeowner had it fixed, and we retested. Both repairs held at 90 PSI.
Book this service → Problems we solve
Problems Post-Repair Leak Testing Solves
A repair that looks fine on the surface can still be leaking under the slab. Testing catches the problems that visual inspections miss.
Ask a pro →Repair failed but nobody caught it
We pressure-test the repaired line before the concrete goes back. If the gauge drops, we find the leak and you fix it once. No second excavation.
Insurance claim stalled without documentation
We provide a written report with pressure readings and thermal images the same day. Most Massachusetts insurers accept our documentation without follow-up questions.
Warm floor spots keep coming back
Our thermal imaging scan shows exactly where heat is escaping. If the repair missed a spot, we find it and you get it fixed before the floor gets worse.
High water bill after repair
We test the repaired line and check for moisture around the slab. If water is still moving, we pinpoint the source and you stop paying for lost water.
Transparent pricing
Post-Repair Leak Testing Pricing
$250 - $550 depending on scope
Post-repair leak testing in Woburn typically runs $250-$550 in 2026. The price depends on how many lines we test, whether we need thermal imaging, and how accessible the repaired section is. We quote the price upfront before we start. If you need affordable post-repair leak verification near Four Corners MA, call us for a quote. We don't charge extra for written reports or documentation.
Testing costs a fraction of what a second excavation runs. For $250-$550, you confirm the repair held and protect yourself from a $3,000-$6,000 repeat demolition. It's the cheapest insurance you can buy for your slab.
•affects cost
Testing one repaired line is less expensive than testing multiple lines. If your repair involved both water and sewer lines, we test both, which adds time and cost.
Get a quote ↗•affects cost
If the repaired section is easy to reach, testing is faster. If we need to move appliances or cut additional concrete, the price goes up. We tell you before we start.
Get a quote ↗•affects cost
Most jobs include a thermal scan. If the repair area is large or moisture has spread, we may need to scan a wider perimeter, which adds 15-30 minutes.
Get a quote ↗•affects cost
We offer 24/7 testing for emergency situations. After-hours calls may include a premium, but we quote it upfront. Same-day post-repair leak testing Woburn MA is available for urgent cases.
Get a quote ↗ Proof you can check
Licensed, Insured, and Documented
- Massachusetts Plumbing License · Massachusetts Board of State Examiners of Plumbers and Gasfitters
- IAPMO Certification · International Association of Plumbing and Mechanical Officials
- OSHA Safety Certification · Occupational Safety and Health Administration
- Backflow Prevention Certification · Massachusetts Department of Environmental Protection
- EPA WaterSense Partner · U.S. Environmental Protection Agency
Customer reviews
What Woburn Homeowners Say
★★★★★
“We had a slab leak repaired and the contractor was ready to pour concrete the next day. I called Slab Leak Experts for testing first. Good thing. The pressure test showed a 4 PSI drop, and they found a fitting that wasn't sealed right. Saved us from tearing up the floor twice.”
MR
Mike R.Homeowner, Woburn Center
✓ Verified“
★★★★★
“Our insurance company required post-repair verification before they'd close the claim. Slab Leak Experts came out, ran the pressure test and thermal scan, and emailed the report the same day. The adjuster accepted it without questions. Fast, professional, and they knew exactly what documentation was needed.”
KT
Karen T.Homeowner, Montvale
✓ Verified★★★★★
“We manage several rental properties in Woburn and had a water line leak repaired at one of them. Slab Leak Experts did the post-repair testing and found the repair was solid. They also checked the neighboring units for moisture. Worth every penny for the peace of mind and the written report.”
DM
Dave M.Property Manager, Four Corners
✓ VerifiedMost post-repair leak testing jobs in Woburn MA run $250-$550 in 2026. The price depends on how many lines we test, whether we need thermal imaging, and how accessible the repaired section is. If you need testing after a slab leak repair in Woburn MA, we quote the price upfront before we start. No surprises.
We isolate the repaired line, pressurize it to 80-100 PSI, and watch the gauge for 30-60 minutes. Then we scan the slab with a thermal imaging camera and check moisture levels. If pressure holds and the slab is dry, the repair passed. You get a written report the same day.
Test within 24-48 hours after the repair, before the concrete patch is poured. That window lets the repaired joint settle without letting moisture damage spread. If you wait a week or more, you risk pouring concrete over a failed repair and paying for a second excavation.
Slab Leak Experts offers post-repair leak testing in Woburn MA near me service across Woburn Center, Downtown Woburn, North Woburn, and Four Corners. We've been testing repairs since 2014 and carry thermal cameras, pressure gauges, and acoustic listening devices on every truck. Call 781-452-3771.
Ready when you are
Schedule Post-Repair Leak Testing Woburn MA Today
Don't pour concrete over an untested repair. Call Slab Leak Experts at 781-452-3771 to schedule post-repair leak testing in Woburn MA. We're licensed, insured, and available 24/7 for emergency verification. Same-day reports sent by email.
Call 7814523771 →
Request an appointment
Contact Slab Leak Experts
Call 781-452-3771 any time, day or night, and a real person picks up. For non-emergency work we schedule same-day or next-morning visits across Woburn and the surrounding towns. Tell us what you are seeing and hearing, and we will tell you what it likely is before we roll a truck.