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Gas Leak Detection in Woburn, MA

Licensed techs, 24/7 emergency response, same-day gas leak repair in Woburn


If you smell rotten eggs or hear hissing near a gas line, call us. Our Gas Leak Detection in Woburn uses tracer gas detectors, ultrasonic leak detectors, and pressure testing to pinpoint the source fast. We serve homeowners and businesses across Woburn, Middlesex County, and handle everything from a pinhole fitting leak to an underground main line break.

Gas Leak Detection in Woburn: leak detection specialist uses an infrared gas camera to visually detect a plume of escaping
Licensed Licensed & Bonded
Fully Insured Insured & Bonded
24/7 Emergency Same-Day Response
Warranty Backed 6+ Years Trusted in Woburn

What Our Gas Leak Detection Service Includes

Every Gas Leak Detection in Woburn call includes the full inspection and testing process. Repairs are quoted separately once we know what we are dealing with, so you are never paying for work you did not approve.

Full Tracer Gas Sweep

We walk the entire gas system with a tracer gas leak detector, checking every fitting, valve, and appliance connection. This is how we confirm the leak is real and narrow down the general area before we start opening walls or digging.

Pressure Test

We isolate sections of the line and run a pressure testing kit to confirm which segment is losing gas. The test takes 15 to 30 minutes and gives us a definitive answer, not a guess based on smell alone.

Pipe Locating and Mapping

An electromagnetic pipe locator traces the gas line through walls, slabs, and underground so we know exactly where to dig or open. This saves you money on exploratory demolition and keeps the repair as small as possible.

Written Findings Report

You get a written summary of what we found, where the leak is, and what it will cost to fix. If the leak is on the utility side of the meter, we tell you that too, so you are not paying for a repair that is not yours.

Repair Quote On the Spot

Once we know the source, we quote the repair before we touch anything. Fitting repairs, short pipe runs, and appliance connections are priced on the spot. Underground and slab leaks get a written quote based on access and pipe length.

What Gas Leak Detection in Woburn Actually Involves


Gas Leak Detection in Woburn is the process of finding where natural gas or propane is escaping from a pipe, fitting, appliance connection, or underground line before it becomes a fire or health hazard. Our techs start with a tracer gas leak detector and an ultrasonic leak detector to confirm the presence of gas, then use a pressure testing kit to isolate the leaking section. We inspect copper pipe, PEX tubing, and PVC pipe runs, check solder fittings and pipe sealant joints, and map the line with an electromagnetic pipe locator so we know exactly what we are dealing with before we open a wall or dig.

Woburn's older housing stock means a lot of original gas piping is still in service, and decades of ground movement plus freeze-thaw cycles each winter work those joints loose. When you call for gas leak repair near me Woburn, you get a tech who has seen this exact pattern in neighborhoods across Middlesex County. If you need gas leak detection Woburn MA near me after hours, we run emergency calls 24/7 so a suspected leak never waits until morning.

Our Gas Leak Detection Process

Five steps from your first call to a tested, leak-free line. Here is exactly what happens when you book us.

01

Schedule

Call or book online — a real human picks up and confirms a 2-hour arrival window.

02

Diagnose

Licensed tech inspects on-site, then walks you through the cause and your options.

03

Fix

The job is completed to code and done right the first time — no shortcuts, no surprises.

04

Guarantee

Every job backed by a written workmanship warranty — and we stand behind it.

Tools and Methods We Use

Tools & Equipment

Sewerin Tracer Gas Detector

Confirms the presence of gas and narrows the leak to a general area before we start opening walls or digging.

Gutermann Ultrasonic Leak Detector

Listens for the high-frequency sound of gas escaping from a pinhole or crack, pinpointing the exact source.

Fluke Thermal Imaging Camera

Spots temperature anomalies around joints and pipe runs that indicate a leak or a failing connection.

Electromagnetic Pipe Locator

Traces the gas line through walls, slabs, and underground so we know exactly where to dig or open.

RIDGID Video Pipe Inspection Camera

Lets us see inside pipe runs behind walls and under slabs without tearing out the whole section.

Pressure Testing Kit

Isolates sections of the gas line and confirms which segment is losing pressure, giving us a definitive answer.

General Pipe Cleaners Inspection Camera

Second camera option for tight or awkward pipe runs where the RIDGID unit will not fit.

Methods & Standards

Tracer Gas Detection

We introduce a small amount of tracer gas into the line and use a Sewerin detector to follow it to the escape point. This works on underground lines and behind walls where a visual inspection would not find anything.

Pressure Isolation Testing

We close off sections of the gas system and pressurize each one individually. The section that loses pressure is the one with the leak. This takes 15 to 30 minutes and gives us a definitive answer before we start any repair work.

Acoustic Leak Detection

Using an acoustic leak detection microphone and an ultrasonic leak detector, we listen for the sound of gas escaping. This is especially useful for pinhole leaks in copper pipe that are too small to smell but still dangerous.

Code-Correct Repair Standards

Every repair follows Massachusetts plumbing code. We use gas-rated pipe sealant, proper solder fittings, and materials rated for gas service. After the repair, we pressure test the line again and document the reading before we leave.

When to Call for Gas Leak Detection in Woburn

01

You smell gas after turning on the heat for the first time in fall.

What we do: This is the most common call we get in October and November. The furnace fires up, the gas line pressurizes, and a fitting that was fine all summer starts leaking. We inspect the furnace connection, the supply line, and the shutoff valve with a tracer gas detector and pressure test the system.

→ Most of these are a failed fitting or a loose union. We replace it, pressure test the line, and you have heat back the same day.

02

A tenant in your Woburn rental calls about a gas smell.

What we do: We treat rental calls as priority. We inspect the unit, document what we find with photos and a written report, and repair the leak if it is on the property side of the meter. If it is on the utility side, we tell you so you can call the gas company.

→ You get a documented inspection and repair, which protects you as a landlord and gets your tenant back to normal fast.

03

You are buying a home in Woburn and want the gas lines inspected before closing.

What we do: We run a full gas leak inspection on the property, including the meter, all appliance connections, and any visible pipe runs. We pressure test the system and give you a written report you can use in negotiations.

→ You know exactly what you are buying. If there is a leak, you have a repair quote in hand before you sign.

04

Your gas bill doubled and you cannot figure out why.

What we do: We pressure test the system to find the leaking segment. This is often an underground line or a slab leak that has been quietly losing gas for weeks. We locate it with an electromagnetic pipe locator and repair the failed section.

→ Your bill goes back to normal, and you stop paying for gas that never made it to your appliances.

How Gas Leak Detection Runs in Woburn

Woburn's housing stock ranges from 1920s copper pipe runs near Woburn Square to newer PEX tubing installs out toward Burlington. The older homes are where we find most gas leaks, because decades of freeze-thaw cycles work those original solder fittings loose. Each winter, we get a wave of calls after the first hard freeze, when the ground shifts and pipes that were fine all summer start leaking. We also see underground main line leaks in the Four Corners area, where older service lines have been in the ground for 50-plus years. Our techs know the difference between a fitting leak and a slab leak, and we carry the tools to handle both. If you need 24/7 gas leak repair Woburn MA, we answer the phone and we show up. We serve all of Woburn, including ZIP codes 01801, 01815, and 01888, plus Stoneham and Burlington.

Neighborhoods We Serve

  • Woburn Square

    Older housing stock with original copper pipe runs. We see a lot of failed solder fittings here, especially after winter.

  • Four Corners

    Mid-century homes with underground gas service lines that are reaching the end of their useful life. Underground main line leaks are common here.

  • Downtown Woburn

    A mix of older commercial buildings and residential units. We handle gas leak detection for both, including restaurant kitchen lines.

  • Horn Pond Area

    Homes near the pond deal with higher soil moisture, which accelerates pipe corrosion on underground lines.

Local Conditions We Plan For

  • Freeze-thaw cycles each winter

    Ground movement works pipe joints loose and causes pinhole leaks in copper pipe. We see a spike in calls from December through March.

  • Older housing stock with original gas piping

    Many Woburn homes still have the original gas lines from the 1920s to 1950s. These are more prone to corrosion and fitting failures than newer PEX tubing.

  • High water table near Horn Pond

    Moisture in the soil accelerates corrosion on underground gas lines, leading to more main line leaks in that area.

Furnace Fitting Leak in Woburn Square

Before

A homeowner smelled gas near the furnace every time the heat kicked on. The gas bill had crept up over two months, and the smell was getting stronger. They had not called anyone because they thought it was just a pilot light issue.

After

We found a cracked solder fitting on the copper pipe feeding the furnace. Replaced the fitting, pressure tested the line to zero leakage, and confirmed with a tracer gas detector. Total job time was three hours. The gas bill dropped back to normal the next month.

Maintenance: We recommended an annual gas line inspection before the heating season starts. A 15-minute check each fall catches fitting failures before they become a real problem.

Before

A property manager noticed dead grass in a strip across the front yard and a gas smell outside. The gas company confirmed a leak on the property side of the meter, which meant the repair was the owner's responsibility. Two other companies quoted a full yard dig.

After

We traced the line with an electromagnetic pipe locator and found the leak within 18 inches of the foundation. Excavated a small trench, replaced a 4-foot section of corroded copper pipe, and pressure tested the line. The yard was back to normal in one day.

Maintenance: We suggested marking the gas line route on a site plan so future landscaping work does not accidentally damage the line. A simple stake marker at the foundation also helps.

Before

A homeowner smelled gas in the hallway but could not pinpoint it. Two other companies could not find the source and suggested opening the whole wall. The smell was intermittent, which made it harder to trace.

After

We used an ultrasonic leak detector and a video pipe inspection camera to find a pinhole leak in a copper pipe run behind the hallway wall. Opened a 12-inch section, replaced the failed pipe, and pressure tested. The whole job took four hours and the wall patch was minimal.

Maintenance: We recommended a moisture meter check on that wall each spring, since high soil moisture near Horn Pond can accelerate corrosion on nearby pipe runs.

Gas Leak Problems We Solve in Woburn

These are the calls we get most often from Woburn homeowners and property managers. If any of these sound familiar, do not wait.

Problem

Rotten-egg smell near the furnace or water heater

A failed fitting or cracked connection at the appliance can leak gas into the basement or utility closet. Even a small leak builds up over time and becomes a real explosion risk.

Our Fix

We inspect the appliance connection, the shutoff valve, and the supply line with a tracer gas detector. Most of these turn out to be a failed solder fitting or a loose union that we can replace in two to three hours.

Problem

Hissing sound near a wall or under the floor

A hissing sound usually means gas is escaping under pressure from a pinhole or crack in the pipe. This is often a sign of pipe corrosion or a joint that has worked loose from ground movement.

Our Fix

We use an ultrasonic leak detector to hear the exact escape point, then a video pipe inspection camera if the line runs behind a wall. We open the smallest section possible, replace the failed pipe, and pressure test before closing it up.

Problem

Dead grass or a wet spot over the underground gas line

An underground main line leak can go unnoticed for months. Dead grass in a strip, a persistent wet spot, or a gas smell in the yard all point to a buried line failure that needs immediate attention.

Our Fix

We trace the line with an electromagnetic pipe locator, confirm the leak with a tracer gas detector, and excavate only where we need to. Most underground repairs are done in one day with a small trench rather than a full yard dig.

Problem

Unexplained spike in the gas bill

If your gas usage has not changed but the bill jumped, a leak somewhere in the system is the likely cause. Ignoring it means paying for gas you are not using and risking a bigger problem down the road.

Our Fix

We run a full pressure test on the system to find the leaking segment. This is one of the most common calls we get in Woburn after the first cold snap, when heating systems start running hard and small leaks become obvious.

Leak detection in Woburn: tight shot on a thermal imaging camera's screen, displaying a clear, distinct hot spot on a

Why Woburn Homeowners Call Us First

A gas leak is not a wait-and-see problem. Here is what you get when you book Gas Leak Detection in Woburn with our team.

  • Fast Source Pinpointing

    We use a tracer gas leak detector and ultrasonic leak detector together to confirm gas presence and narrow the source to a single fitting or pipe section. Most residential inspections take 60 to 90 minutes, so you are not waiting all day to find out whether your home is safe.

  • Emergency Response 24/7

    Gas does not keep business hours. Our emergency gas leak repair Woburn MA line is staffed around the clock, and we aim to have a licensed tech at your door within 60 to 90 minutes for active leaks. If you smell gas, leave the building first, then call.

  • Code-Correct Repairs

    Every repair we make follows Massachusetts plumbing code, and our techs carry a Massachusetts plumbing license. We replace failed solder fittings, corroded copper pipe, and cracked pipe sealant joints with materials rated for gas service, then pressure test the line before we sign off.

  • Upfront Pricing, No Surprises

    You get a clear price before we start. Typical 2026 gas leak detection Woburn Massachusetts cost runs $180 to $450 for the inspection, and repairs are quoted separately based on access and pipe length. No hidden fees, no upsells on parts you do not need.

Licensed, Insured, and Tested

Licensed & Certified

  • Massachusetts Plumbing License — issued by Commonwealth of Massachusetts Board of State Examiners of Plumbers and Gasfitters
  • OSHA Safety Certification — issued by Occupational Safety and Health Administration
  • Backflow Prevention Certification — issued by Massachusetts Department of Environmental Protection
  • IAPMO Certification — issued by International Association of Plumbing and Mechanical Officials
  • NATE Certification — issued by North American Technician Excellence

Verified Reviews

Google ★★★★★4.9

Called about a gas smell near the water heater. Tech arrived in about an hour, found a loose union, tightened it, and pressure tested the line. Charged exactly what he quoted. No upsell, no drama. Would call again.

Yelp ★★★★★4.8

We had an underground gas leak in the front yard. Two other companies wanted to dig up the whole yard. These guys traced it with a locator and only dug a small trench. Saved us thousands. Highly recommend.

BBB ★★★★★4.9

Professional from start to finish. They explained what they were doing, showed me the pressure test reading, and cleaned up after themselves. The gas smell was gone and the bill went back to normal.

Google ★★★★★5.0

Emergency call on a Sunday night. They answered, dispatched a tech, and had the leak repaired by midnight. I did not think that was possible. Fair after-hours rate and a written report for my records.

Six Years of Leak Detection in Middlesex County

Leak Detector Pros has been in business since 2020, and in six years we have built a reputation across Woburn and Middlesex County for finding leaks other companies miss. Our techs hold a Massachusetts plumbing license and train on Sewerin and Gutermann tracer gas detectors, RIDGID and General Pipe Cleaners inspection cameras, and Fluke thermal imaging gear. We have worked on everything from 1920s copper pipe runs in Woburn Square to new PEX tubing installs in Burlington. When you book professional gas leak detection Woburn MA, you get a tech who has done this hundreds of times.

  • Massachusetts plumbing license held by every tech who touches a gas line on your property.
  • Trained on Sewerin and Gutermann tracer gas detectors for pinpoint accuracy.
  • OSHA safety certification for confined space and excavation work on underground lines.
  • Six years serving Woburn, Stoneham, Burlington, and the surrounding Middlesex County area.
  • Backflow prevention certification for work that ties into municipal supply lines.
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Leak detection in Woburn: close-up shot of a leak detection specialist's hand operating a digital acoustic listening device

Frequently Asked Questions About Gas Leak Detection in Woburn

Real answers to the questions we hear most often from local homeowners and property managers.

What are signs of a gas leak in Woburn MA?
The most common signs are a rotten-egg smell, hissing near a gas line or appliance, dead grass over an underground line, and headaches or nausea that clear when you leave the house. A spike in your gas bill with no change in usage is another red flag. If you notice any of these, leave the building and call us or the gas utility immediately.
How much does gas leak detection cost in Woburn Massachusetts?
Typical 2026 pricing for gas leak detection Woburn Massachusetts runs $180 to $450 for a residential inspection. That covers the tracer gas detector sweep, pressure testing, and a written report. Repairs are quoted separately. Underground line leaks and slab leaks cost more because of access work, usually $800 to $2,500 depending on depth and pipe length.
Who do I call for a gas leak in Woburn MA?
If you smell gas strongly or hear hissing, leave the building and call 911 or your gas utility first. Once the immediate danger is handled, call us at (123) 456 7890 for gas leak detection and repair. We are licensed in Massachusetts, we run 24/7, and we serve all of Woburn and Middlesex County.
Can you repair a gas leak the same day in Woburn MA?
Yes, most gas leak repairs get done the same day. Fitting leaks, short copper pipe runs, and appliance connection repairs typically take two to four hours. Underground main line leaks may need excavation and can run into a second day. We tell you the timeline before we start, not after.

Need Gas Leak Detection in Woburn Today?

If you smell gas, leave the building and call 911 first. Then call us at (123) 456 7890 for licensed Gas Leak Detection in Woburn and same-day repair. We run 24/7, we carry a Massachusetts plumbing license, and we test every line before we leave. One call and we are on the way.

Call (123) 456 7890 Call Now

Call Leak Detector Pros

Call (123) 456 7890 any time, day or night. We answer 24/7, and most Woburn calls get a tech on site the same day. If you smell gas, leave the building first and call from outside. For everything else, tell us what you are seeing and we will tell you what to shut off before we arrive.

Or call us right now at (123) 456 7890 — we answer.

Leak Detector Pros


  • Address

    5 Constitution Way Suite A, Woburn, MA 01801

  • Hours

    Mon–Fri: 7AM – 7PM
    Sat: 8AM – 4PM
    Sun: Emergency Only
    24/7 Emergency Available

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