Fully Licensed
Experienced plumbers equipped to locate hidden water leaks in residential and commercial properties.
Hidden leaks can waste water and damage nearby surfaces. Delta Plumbers provides leak detection services for homes, rentals, and commercial properties across Ontario. Our licensed plumbers locate the source of the leak and explain the next step.

Choosing the right leak detection plumber helps identify the source of the leak and explain the best repair options. Our team performs careful inspections and provides clear recommendations.
Experienced plumbers equipped to locate hidden water leaks in residential and commercial properties.
Every leak detection service is completed with careful attention to help locate hidden leaks accurately and efficiently.
Providing professional leak detection services for homes, rental properties, commercial buildings, offices, and businesses across Ontario.
Prompt leak detection service to help locate hidden water leaks before they cause further damage.







Get clear answers before a hidden leak leads to wider damage or expensive repairs.
Prefer to talk? (888) 925-1996Read what customers say about our scheduling, communication, and plumbing work.
Our shower drain had been giving us trouble for weeks but Ali from Delta Plumbers fixed it in no time. Excellent customer service.
Multiple toilets and our bathtub backing up at once?? I'd never seen anything like it. Tony diagnosed the pipe clog instantly — what a lifesaver.
Very happy with my tankless water heater installation. Quick and hassle-free process — would recommend.
Money was tight and Peter gave me a few budget alternatives. He saved the day — would recommend to anyone.
Our shower drain had been giving us trouble for weeks but Ali from Delta Plumbers fixed it in no time. Excellent customer service.
Multiple toilets and our bathtub backing up at once?? I'd never seen anything like it. Tony diagnosed the pipe clog instantly — what a lifesaver.
Very happy with my tankless water heater installation. Quick and hassle-free process — would recommend.
Money was tight and Peter gave me a few budget alternatives. He saved the day — would recommend to anyone.
Our shower drain had been giving us trouble for weeks but Ali from Delta Plumbers fixed it in no time. Excellent customer service.
Multiple toilets and our bathtub backing up at once?? I'd never seen anything like it. Tony diagnosed the pipe clog instantly — what a lifesaver.
Very happy with my tankless water heater installation. Quick and hassle-free process — would recommend.
Money was tight and Peter gave me a few budget alternatives. He saved the day — would recommend to anyone.
Called Delta on a Sunday — they were the only company that came out within an hour. Dustin was polite and quick.
Super fast response time — arrived early. Domenic was friendly, efficient, and even a pet magnet. Will call them again.
Provided awesome service. Very professional, courteous, and respectful — first time calling a plumber and I'm glad I did.
My water boiler had sprung a leak and they replaced the pipe the same day. Grateful for such prompt service.
Called Delta on a Sunday — they were the only company that came out within an hour. Dustin was polite and quick.
Super fast response time — arrived early. Domenic was friendly, efficient, and even a pet magnet. Will call them again.
Provided awesome service. Very professional, courteous, and respectful — first time calling a plumber and I'm glad I did.
My water boiler had sprung a leak and they replaced the pipe the same day. Grateful for such prompt service.
Called Delta on a Sunday — they were the only company that came out within an hour. Dustin was polite and quick.
Super fast response time — arrived early. Domenic was friendly, efficient, and even a pet magnet. Will call them again.
Provided awesome service. Very professional, courteous, and respectful — first time calling a plumber and I'm glad I did.
My water boiler had sprung a leak and they replaced the pipe the same day. Grateful for such prompt service.
Book water leak detection when moisture appears without a clear source.

A hidden water leak may cause stains, damp areas, or the sound of running water. Professional leak detection services help narrow down the problem before repair work begins.
We inspect exposed and concealed plumbing lines. We can also assess signs linked to underground leaks or slab leaks.
Some leaks form behind walls, under floors, inside ceilings, or below the ground. These areas cannot be checked during a visual inspection. A thorough assessment helps identify which part of the plumbing system needs closer attention.
Water may travel away from the leak, making the source harder to find. A complete inspection helps identify leaks throughout the plumbing system. It also checks water supply lines and hidden pipes that cannot be seen during a visual inspection.
The changes you notice help us decide where to inspect and test first.
A rising bill or moving water meter may show that water is escaping.
Marks on ceilings, soft flooring, or wet spots may point to a concealed pipe.
Low pressure or the sound of running water can help us detect a leak.

Water can spread beyond the source and damage drywall, flooring, cabinets, or insulation. Some leaks may also raise water use or weaken nearby materials.
Early pipe leak detection can help reduce structural damage and lower the risk of expensive repairs. Underground leaks and slab leaks may also create wet soil, warm floor areas, or unexplained pressure loss.
As the leak continues, water may spread beyond the original area and reach other parts of the property. This can affect areas that were dry at first and increase the amount of repair work needed once the leak is located.
Responding to a hidden water leak sooner can help keep the problem contained to a smaller area. A timely inspection provides a clearer understanding of the affected section before the condition becomes more difficult to manage.
We review the warning signs, inspect the plumbing system, and choose a testing method that suits the affected area.
We ask where the signs appeared and when you first noticed them.
We check visible pipes, fixtures, nearby surfaces, and water lines for signs of moisture.
We may use moisture readings, listening equipment, cameras, or a pressure test to narrow down the leak.
We identify the suspected source of the leak and explain the next repair options.
Suspect a hidden water leak? If you notice unexplained water stains, damp areas, or a sudden increase in your water bill, contact Delta Plumbers to schedule a professional leak detection service.

A burst pipe or sudden hidden water leak can damage several areas in a short time. Turn off the nearest valve or main water supply when you can do so safely.
Call for emergency leak detection when water appears without warning, pressure drops suddenly, or moisture spreads through a wall, floor, or ceiling. A focused inspection can help locate the source and protect your home from further damage.
Fast action can help limit the amount of water that reaches nearby rooms and plumbing fixtures. Once the leak is located, your plumber explains where the leak was found, checks the surrounding area, and recommends the next step.
Searching for Plumbing Leak Detection? Delta Plumbers checks hidden leaks, burst pipes, and unexplained water loss for homes and businesses across Ontario.
We keep the money part simple and the booking part painless.
Contact Delta Plumbers by phone or complete our online form. We'll discuss the signs of the suspected leak and arrange a convenient appointment.
Your plumber inspects the plumbing system, locates the source of the suspected leak, and explains the findings. You'll receive a clear estimate before the service begins.
The leak detection is completed, the inspection area is left clean, and your plumber explains the findings and recommended next steps. You pay only the approved price.
Accurate leak detection and repair starts with a clear location. The condition of the pipe, fitting, or water line will guide the next step.
A plumber may repair one damaged section when the rest of the pipe remains sound.
A cracked or loose fitting may need replacement to restore a secure connection.
A hidden leak may require a small opening near the confirmed source.
Underground leak detection can help limit digging by narrowing down the damaged area.
Several leaks, heavy corrosion, or older pipes may make wider replacement the better long-term choice.

Leaks often show small warning signs before they cause wider damage. A few simple checks can help protect your home.
Do not wait for clear damage to appear before arranging an inspection. Professional leak detection services can confirm the source of the problem and help you address it before additional areas require attention

Water may travel far from the source before it becomes visible. Delayed service can lead to damaged finishes, structural damage, and expensive repairs.
Early hidden water leak detection helps narrow down the affected area. It also supports a more focused repair and may reduce the amount of material that needs to be opened.
Arrange professional leak detection while the plumbing system is still operating normally. This gives the plumber clearer information about the affected pipe and helps confirm the source before the problem becomes harder to assess.
When you address the problem early, it's easier to schedule service at a convenient time. It can also help prevent the leak from becoming a more urgent plumbing problem.
Clear findings help your plumber choose a repair that suits the damaged area. This can limit guesswork, reduce water loss, and support better long-term results.
Finding the leak early may reduce damage to drywall, flooring, cabinets, and other finishes.
A repaired hidden leak can stop water from escaping and help control future utility costs.
Knowing the source helps determine whether the problem involves a pipe, fitting, connection, or underground water line.
Professional leak detection services provide the details needed to plan focused repair work. Once the source is confirmed, your plumber can explain the required access, repair options, and steps that may help prevent further damage.
Plumbing systems operate in the background discreetly, ensuring regular business activity continues to operate within normal parameters without causing any disruption. They deliver clean water as and where it is needed, efficiently drain out waste, and help create a secure and cozy environment for workers, customers, and visitors. Plumbing installations, as essential as they are, are not without a host of hazards, the most critical one being silent water leaks. They may take weeks or months before they are discovered, slowly compromising the building’s safety, efficiency, and reliability.
What starts as a small pipe fracture or a pinhole leak at a union can evolve into a full-blown issue if left unchecked. Water seeps into walls, ceilings, or floors, degrading properties of support structures with the passage of time. As moisture travels, mold and mildew thrive, creating unwholesome environments and leading to expensive cure. To commercial property owners and managers, the stakes are all the more critical—compromised inventory, equipment breakdown, unsafe working conditions, and even business shutdown for a short duration of time are all potential consequences.
This is the reason why business leak detection is not an option; it is an active protection of your investment. Delta Plumbers know how to effectively and accurately detect leaks with professional use of the latest technology available to create the least amount of disruption. Our technicians have decades of experience working with the latest equipment, allowing us to help Canadian businesses have plumbing systems that are safe, cost-saving, and durable.
The dimensions of a commercial building magnify the water leak much more perilous than in a residence. In a residence, one leak can devastate one wall or floor. In an office building, hotel, mall, or factory, the same leak could travel multiple floors, damage colossal drywall segments, and be dangerous to huge areas of the property. The larger the building footprint, the harder it is to determine the source of the problem, and along with it, leaks go undetected for long periods of time.
The financial expense can be huge. A commercial building water leak can blow electrical equipment, shut down elevators, or destroy lighting. Leaks in a restaurant overflow into kitchen areas, contaminate food, and lead to over night business closure based on health code infractions. Even in non-disaster scenarios, ongoing water leaking into the improper zones adds to the utilization of utilities, so companies are paying for water that never is used for its intended purpose.
With professional business leak detection, though, these kinds of issues can be identified early on and resolved before they become full-blown crises. Business investment in leak detection benefits not just their tangible assets but their profitability in the long term and their reputation. Preventive detection equals fewer crises, more secure maintenance budgets, and more sleep at night.
Commercial plumbing systems are complex and open to a broad range of stressors. Knowing some of the usual suspects when it comes to leaks puts business owners in touch with the fact that ongoing detection is necessary. Aging infrastructure is perhaps the most egregious culpable. In most older Canadian cities, corporations still occupy structures with pipes decades old. With age, metal pipes corrode, seals break, and fittings loosen, all of which create weaknesses where leaks will occur. Too much water pressure is a frequent offender. Commercial buildings rely on pressure systems to deliver enough water flow through large buildings in the majority of business structures. Highly effective, this pressure wears pipes, fittings, and fixtures thin over time. Fluctuations in weather introduce a secondary factor of danger. Harsh Canadian winters lead to freezing of water in pipes, developing cracks or breakage upon ice formation. Lastly, the widespread use of water in business buildings hastens wear and tear. Grease and food waste are flushed through restaurant pipes every day. Hotels have huge laundry loads and round-the-clock guest water usage. Hospitals require continuous water supply for sanitation and patient treatment. Water-intensive processes with chemical exposure are handled by manufacturing plants. Each of these presents stress points that enhance the likelihood of leaks. At Delta Plumbers, our commercial leak detection considers all of those factors. We do not just locate leaks—we analyze the conditions that resulted in the leaks and recommend measures to prevent additional issues from happening.
The issue with commercial leaks is the fact that they cannot be located unless the damage is extensive. But there are signs to alert you to the problem. One of the most obvious signs is an abnormally rising water bill without any obvious reason. Stinky odors inside your building are also a sign of water behind walls, ceilings, or floors. Such conditions favor the growth of molds if left untreated within a specific amount of time and become health hazards to employees and customers. Physical indicators include moisture patches on walls, painted ceilings, or bubbling paint. Faint hissing, dripping, or trickling also occurs when the faucets are off. Sudden water pressure over sinks, toilets, or industrial machinery is also an indication that there are leaks in the system. Because these symptoms are seconds confused with a different disease, calling for experts is your best option. With the commercial leak detection of Delta Plumbers, the guessing is eliminated. We use sophisticated diagnostic tools to see if there’s a leak, where it occurs, and provide speedy solution fixes.
Older leak detection methods were invasive and disruptive. Contractors would tear up flooring or remove walls in a quest for the leak, causing damage along the way at a high cost. We employ a newer, less invasive method at Delta Plumbers that gives correct results with minimal interference. We utilize acoustic listening equipment that can identify water seeping through pipes hidden in walls or under the ground. Infrared heat-sensitive cameras allow us to spot heat readings that signify moisture. Moisture meters allow for precise measurement within building materials, allowing us to trace leaks without excessive demolition. In more complex cases, we employ tracer gas detection and high-definition video camera surveys. Both instruments allow us to locate leaks on buried pipes, sewer lines, and inaccessible areas with unrivaled accuracy. With technology and expertise, we save businesses time, reduce repair expenses, and restore plumbing systems to full capacity in the shortest time frame.
It is often tempting to delay leak fix work, especially if the issue appears trivial. Leaks deferred do have quite unpleasant consequences, though. Chronic water penetration rusts structural elements, encourages rust and rot, and has even destabilized the foundation of a building. Mold and mildew infestation follow rapidly in its wake, contaminating indoor air and generating health issues for employees and guests. Leaks also have severe electrical hazards. Water intrusion destroys cables, blows out panels, and increases the potential for fire. Leaks near food preparation areas in food preparation facilities cause contamination risks and result in shut-downs or penalties. Insurers may also reject claims if the loss is found to have resulted from negligence and not by unforeseen and unforeseen mishaps. By prioritizing professional leak detection, businesses save property, employees, customers, and business continuity.
No two businesses are alike, and neither are their plumbing systems. That is why Delta Plumbers creates commercial leak detection service specifically designed to meet the unique demands of a wide range of industries. For restaurants, we have active kitchen drain and plumbing systems where leaks are responsible for real-time disruptions and sanitation issues. For hotels, we have concern over guest bathroom facilities, laundry facilities, and commercial kitchens, where even small leaks impact customer satisfaction and sales. Industrial facilities typically operate under pressure, and special protocols must be executed in order to protect machinery and production lines. Office buildings and malls, however, require quick reaction and advance notification in order to check leaks before they travel across multiple units or floors. By adapting our services, Delta Plumbers ensures all businesses get leak detection services that are precise, efficient, and effective.
Leak detection and repair are only half the solution to preventing it. Long-term protection can be achieved by protective maintenance. Delta Plumbers offers detailed programs that include annual inspections, water pressure testing, and pipe integrity testing. These actions remedy deficiencies before they have a chance to develop into leaks. We also implement smart monitoring systems that provide instant alert of unusual water consumption. The technology is invaluable for firms that cannot afford downtime. Instant alerts allow rapid intervention, which prevents possible extensive damage. Through professional maintenance checks, these interventions prolong the life span of plumbing infrastructure, enhance efficiency, and reduce unexpected costs.
One of the most overlooked advantages of commercial leak detection is how it fits into a company’s wider preventative maintenance plan. Most businesses function reactively when it comes to plumbing, only calling professionals if there is a total collapse. The issue is by the time a leak has expressed itself physically, damage is often already done across a large area. Carpets may be saturated, drywall will be replaced, and machinery might have suffered electrical damage. Proactive leak detection interrupts that cycle by finding tiny weaknesses early on, preventing firms from having to spend thousands of dollars on emergency repairs. Here at Delta Plumbers, we strongly recommend that businesses treat leak detection on the same level as HVAC service or fire safety inspections. By having regular evaluations scheduled, facility managers can keep plumbing systems robust and efficient throughout the year. Not only will this method prolong the life of pipes and fixtures, but it will also offer business owners stable costs that are considerably easier to plan for. Compared to the loss caused by the disruption of a sudden closure due to water damage, preventive detection is an investment that pays for itself almost immediately.
Apart from protecting buildings, leak detection is important to sustainability. Businesses in Canada are being asked more and more to be greener, and conserving water is at the core of most environmental endeavors. A single drippy faucet on a commercial line can lead to thousands of liters of good water wasted annually. Multiplied by dozens of fittings in a giant building, the devastation is mind-boggling—not only to the environment but to the company’s utility bill.
By rapidly repairing leaks and implementing water-conservation techniques, companies take the lead in sustainability as well as reducing operating costs. Delta Plumbers works with companies to recommend upgrades such as low-flow devices, shut-off valves, and water-monitoring devices. Together, these measures avoid waste, help companies comply with environmental regulations, and set corporate responsibility for customers who are concerned about environmentally conscious practices. For modern companies, leak detection is more than it is about avoiding damage—it is about being aligned with long-term sustainability goals and building brand reputation even higher.
We are the plumbers that Canadian businesses trust because our unmatched combination of technology, experience, and customer service. Our licensed and insured plumbers have years of experience, so they are well-equipped to handle the most challenging commercial plumbing problems.
We boast that we’re transparent and honest—offering transparent upfront prices, open communication, and service warranties. With 24/7 service access, we’re always there to assist the instant an emergency happens, reducing downtime and business life running smoothly. Delta Plumbers is not employing a plumbing service; it’s conducting business with professionals who take care of safeguarding your property, your reputation, and your bottom line.
Wastage of water is costly as well as ecologically harmful. Leaks burden municipal water systems and increase energy loads on treatment plants. We have included leak detection as a crucial component of our path towards sustainability as Delta Plumbers. With leak repairs and recommending water-saving upgrades, we help businesses save money as well as carbon emissions.
Our commitment to the planet goes beyond all of our services. From eco-friendly waste disposal to using energy-efficient equipment, we ensure that protecting your business also protects the planet.
A concealed leak in a business facility is not only an annoyance, it’s a safety hazard, a profitability loss, and a long-term success threat. In cases like those in Canada, where pipes are subjected to high pressure due to freezing weather, the risks are magnified. Commercial leak detection cannot ever be considered optional. At Delta Plumbers, we pair the latest non-invasive technology, seasoned technicians, and 24/7 service commitment. Not only do we locate and fix leaks but also provide preventative measures that keep your plumbing performing for many years. Regardless of whether you have a retail store, restaurant, hotel, hospital, or factory, Delta Plumbers offers tailored solutions that protect your investment. You don’t merely get a fix-it job from us—you get a long-term safety, efficiency, and sustainability business partner.
Delta Plumbers provides water leak detection for homes, rental properties, and commercial buildings across Ontario. Our licensed plumbers inspect visible pipes, concealed plumbing, slab leaks, and underground leaks.
Cost depends on the leak location, access, testing method, and time needed to locate the source.
Professional leak detection uses non-invasive methods whenever possible to locate the leak while limiting unnecessary damage to walls, floors, or other finished surfaces.
Yes. Testing can help narrow down leaks beneath concrete before access or repair work begins.
A plumber may inspect the area and use moisture readings, listening tools, cameras, or a pressure test.
Water stains, wet spots, rising bills, low pressure, and running-water sounds may point to a hidden leak.
Underground leak detection can help locate damaged water lines and reduce unnecessary digging.
Welcome aboard! Get $49 off your first completed plumbing service. Not valid toward diagnostic fees alone.
Claim $49 OffTerms: First-time customers only. One per household. Applies to completed work only. Cannot be combined with other offers.