Water leak in your business? Get commercial leak detection in Essex from a local plumber.

Why a hidden leak in a business costs so much

A leak in a house is a nuisance. A leak in a shop, a restaurant, an office or a warehouse can be a serious expense, because the water often runs unseen for weeks. The pipes are bigger, the pressure is higher, there are more fixtures, and the building may be closed to the public while someone looks for the cause. A pinhole in a copper line behind a wall or a crack in a pipe under the floor slab can add hundreds of dollars a month to a water bill, soak drywall and flooring, grow mold and damage stock or equipment.

Commercial leak detection is the work of finding where the water is escaping without tearing the building apart. A trained plumber or leak detection technician uses tools and a method, not guesswork, to narrow the leak to a small area. Only then do they open a wall or a floor, and the opening is as small as it can be.

Signs that a business may have a hidden leak

• A water bill that rose with no change in use. The most common first sign, and often the only one.
• A meter that moves when everything is off. The strongest test there is.
• The sound of running water in a quiet building, at night or on a weekend.
• Damp or stained walls, ceilings or floors, especially in a spot that never gets splashed.
• Peeling paint, bubbling drywall or a musty smell.
• Warped, lifting or cracked flooring, or tiles that sound hollow.
• Low water pressure that came on without a reason.
• Warm spots on a slab floor, which can mean a leak in a hot water line.
• Wet ground or a patch of green grass outside, over the line from the street.
• Cracks in walls or floors near a plumbing run, in older buildings.

The simplest test: read the meter

Before you call, you can run a free test that tells you whether there is a leak at all. Close the business or wait until every fixture is off, and make sure no one is running a dishwasher, ice machine, cooling tower or irrigation system. Find the water meter, usually in a box near the street, and look at the small dial or the low-flow indicator. Note the reading. Wait fifteen minutes, with nobody using water, and look again. If the dial or the indicator has moved, water is leaking somewhere between the meter and your fixtures.

Take a photo of the meter before and after. The provider will want to know how fast it is moving, since a fast spin points to a large leak and a slow creep to a small one.

Where commercial leaks usually hide

Under the slab. In many commercial buildings the water lines run in or under the concrete floor. A leak there can stay unseen for a long time, and warm spots, damp carpet or a sound of running water are clues.

Inside walls and ceilings. Supply lines, risers and fixture connections run behind finishes. A leaking joint can drip into insulation for months.

At fixtures. Toilets, urinals, flush valves, faucets and mop sinks leak often and sometimes silently, since a worn flapper or flush valve can run all day.

On the outside line. The line from the street or the meter to the building may be buried a few feet down, and a leak in it shows up only as a high bill, a wet patch or low pressure.

In equipment. Water heaters, boilers, ice machines, dishwashers, cooling systems and irrigation lines can all leak, and sometimes the plumber's first job is to rule them out.

In fire lines and irrigation. A separate line that serves sprinklers or landscaping can leak, with its own meter or none.

How a detection visit usually works

1. A talk and a walk. The technician asks about the building, the bill and when you first noticed the problem, then walks the space.
2. A meter and isolation test. They confirm a leak exists, then close valves in turn to see which section of pipe the water is leaving.
3. Listening. Electronic listening equipment picks up the sound of water escaping from a pipe under pressure, through a floor or a wall.
4. Thermal imaging or moisture reading. A camera or a moisture meter can show damp or warm areas that the eye cannot see.
5. Pressure testing. A line can be isolated and tested to see if it holds pressure.
6. Tracing and marking. Once the leak is located, the spot is marked and explained to you.
7. A written report or an estimate for the repair, which may include opening a small section of wall or floor.

Methods vary by provider and by building. Ask which tools they use and what each one tells them.

Repair after detection

Finding a leak is the first half. The second half is fixing it. Some providers do both, and some find the leak and hand the repair to a plumber. Ask before the visit. The repair can be as small as a new fitting or as large as rerouting a line that runs under a slab. In a lease, the landlord may be responsible for lines within walls and under floors, and the tenant for fixtures. Check your lease and tell the landlord early.

What changes the price

This website does not set prices. What changes them:

• The size and type of the building.
• How easy the pipes are to reach.
• Whether the leak is on a supply line, a drain or a fixture.
• Whether the work has to happen after hours so the business can stay open.
• The number of methods needed to find the leak.
• Whether a report is needed for an insurer or a landlord.
• Time of day and day of the week.

Ask how the price is figured, whether there is a visit fee, whether the fee counts toward the repair and what happens if no leak is found.

Commercial buildings in Essex

Wikipedia says Essex began in 1909, when the Taylor Land Company sold lots to Baltimore residents, grew rapidly around the Glenn L. Martin Company, and had 40,505 residents at the 2020 census. In practice, that means Essex businesses sit in older storefronts, shopping centers, small offices and light industrial buildings. Each building type hides leaks in a different place: restrooms and kitchens in shops and restaurants, risers and roof drains in offices and slab lines in warehouses.

Wikipedia says a 1957 fire destroyed a block of businesses on Eastern Boulevard and that shopping centers were built afterward, so the area has both older storefronts and newer centers. If your bill has risen and you cannot say why, start with the meter test, then call. A provider can narrow the leak to one section of pipe before any floor or wall is opened.

Questions to ask any leak detection provider

• Are you licensed in Maryland for plumbing, and can I check it with the state board?
• Do you carry insurance, including coverage for damage while you work?
• Which tools will you use, and what does each tell you?
• Will you give me a written report with the location of the leak?
• How do you protect floors, stock and equipment while you work?
• Can you work after hours?
• Do you repair what you find, or hand it off?
• How is the price figured, and is there a visit fee?

About this referral service

Essex Leak Detect is a referral service and does not do plumbing or leak detection work. When you call, you are connected to an independent provider who sets their own prices and carries their own license and insurance. Ask about both.

Frequently asked questions

How do I know if my business has a hidden water leak?

A rising water bill, a water meter that moves when everything is off, damp or stained walls, warm spots on the floor or the sound of running water are all signs. The meter test is the simplest check.

Does leak detection mean breaking the floor?

Not at first. Listening equipment, thermal imaging and pressure tests narrow the leak to a small area before anything is opened.

Who pays for a leak, the landlord or the tenant?

It depends on the lease and where the leak is. Lines inside walls and under floors are often the landlord's. Check your lease and tell the landlord early.

How long does leak detection take?

A small space may take a couple of hours. A large building or a leak under a slab can take longer.

Can the visit happen after hours?

Many providers can work evenings or weekends so your business can stay open. Ask when you call and ask about cost.

Who comes if I call this number?

An independent local plumbing provider. This website only connects the call.

Other pages

• Emergency commercial water leak in Essex, MD
• Hidden water leak detection in Essex, MD
• High water bill investigation in Essex, MD
• Slab and underground leak detection in Essex, MD