# Commercial Leak Detection Nottingham | Landlords & Sites | Notts Leak Detection > Commercial leak detection in Nottingham for landlords, shops and small sites: supply-pipe leaks found with minimal disruption and a report. Open 7 days. URL: https://nottsleakdetection.co.uk/commercial-leak-detection/ 1. [Home](https://nottsleakdetection.co.uk/) 2. [Underground Water Leak Detection](https://nottsleakdetection.co.uk/underground-water-leak-detection/) 3. Commercial Leak Detection # Commercial Leak Detection in Nottingham for Landlords and Businesses [Notts Leak Detection](https://nottsleakdetection.co.uk/) provides commercial leak detection across Nottingham and Nottinghamshire for landlords, letting agents, shops and small sites, with the leak found around your opening hours and written up for your records. Call about a property 0115 839 0791 (+441158390791) [Request a quote](https://nottsleakdetection.co.uk/contact/) Lines open Monday–Sunday, 9am–7pm. ![Leak detection at a stop valve in a yard behind brick commercial units in Nottingham](https://nottsleakdetection.co.uk/images/leak-detection-in-yard-behind-brick-commercial-units-nottingham.webp) - Landlords and letting agents - Shops and small sites - Work around opening hours - Meter and sub-meter tests - Acoustic and tracer gas - Report for insurers and retailers Last updated: 28 September 2026 Commercial leak detection covers the same buried pipes as a house, but with more to work around: tenants, trading hours, more than one supply, and longer pipe runs across yards and car parks. The approach is the same. Confirm the loss on the meter, isolate each part of the system, then locate the leak from the surface before anything is dug. ## Landlords and letting agents A high bill at a rented house or flat usually lands with the tenant first, but the supply pipe belongs to the owner. [Severn Trent‘s rules](https://www.stwater.co.uk/my-supply/tap-water/my-water-pipes/water-pipe-responsibility/) put the pipe from the boundary to the building on the property owner, even where it crosses other land. A written report showing where the leak was, and that it has been fixed, helps sort out the bill and gives you a record for the property file. ## Shops and small sites Where a site has several buildings or sub-meters, each part is isolated and flow-tested in turn to find which one is losing water. The leak is then located with [underground water leak detection](https://nottsleakdetection.co.uk/underground-water-leak-detection/), or [trace and access](https://nottsleakdetection.co.uk/trace-and-access/) if it is under a floor and an insurance claim is likely. Visits are timed within our hours, 9am to 7pm, 7 days a week, to cause the least disruption. ## What's included - Visit timed around tenants or trading hours - Meter and sub-meter flow tests - Isolation of each supply and building - Pipe routes traced across the site - Leak located with acoustic or tracer gas equipment - Leak marked and photographed - Written report for the owner, agent or insurer - Repair or replacement options, priced ## How the options compare Commercial Leak Detection: options compared Compare Do it yourself Dig-and-hope operator Proper leak detection Disruption Trial and error Digging during trading Visit timed to suit the site Multiple supplies Confusing Checked one by one, slowly Isolated and tested in turn Records None An invoice Report for owner, agent and insurer Water charges Paid in full Paid in full Evidence for an allowance through your retailer ## Related resources - [Decision Guide How much does leak detection cost in Nottingham?](https://nottsleakdetection.co.uk/guide/leak-detection-cost/) - [Learn What does trace and access cover?](https://nottsleakdetection.co.uk/guide/trace-and-access-cover/) - [Decision Guide Is it a water leak or a faulty meter?](https://nottsleakdetection.co.uk/guide/water-leak-or-faulty-meter/) Water coming up now? 1. 1Turn off your internal stop tap. It is usually under the kitchen sink. 2. 2Water in the road or on the pavement? That is Severn Trent's: call 0800 783 4444 (+448007834444). 3. 3On your side of the boundary? Call us, 9am–7pm, 7 days. 0115 839 0791 (+441158390791) Standards and rules we work to - Water Supply (Water Fittings) Regulations 1999 - WRAS-approved fittings on any repair - Non-flammable 5% hydrogen tracer gas - Severn Trent's published split of pipe responsibility Step by step ## What happens, from call to report 1. ### Brief Site plan, meters, supplies and access times agreed before the visit. 2. ### Isolate and test Each supply or building is isolated and flow-tested to find where the loss is. 3. ### Locate Acoustic listening, correlation or tracer gas on the leaking section. 4. ### Report Leak position, cause and options, written for the owner, agent or insurer. The work ## How the work looks Illustrative photos of the methods and finish described on this page. They are not records of particular customers' jobs. - ![Stop valve cover opened in a service yard behind commercial units, Nottingham](https://nottsleakdetection.co.uk/images/stop-valve-cover-open-in-service-yard-nottingham.webp) Stop valve cover opened in a service yard behind commercial units - ![Leak noise correlator sensor clipped to a pipe fitting at a commercial site, Nottingham](https://nottsleakdetection.co.uk/images/correlator-sensor-clipped-to-pipe-fitting-nottingham.webp) Leak noise correlator sensor clipped to a pipe fitting at a commercial site - ![Row of water sub-meters in a plant room checked during commercial leak detection, Nottingham](https://nottsleakdetection.co.uk/images/sub-meters-in-plant-room-nottingham.webp) Row of water sub-meters in a plant room checked during commercial leak detection - ![Ground microphone survey across a car park at a commercial site, Nottingham](https://nottsleakdetection.co.uk/images/ground-microphone-in-car-park-nottingham.webp) Ground microphone survey across a car park at a commercial site High bill at a rental or business? Get the leak found quickly. Commercial leak detection anywhere in Nottinghamshire. Lines open Monday–Sunday, 9am–7pm. 0115 839 0791 (+441158390791) [Request a quote](https://nottsleakdetection.co.uk/contact/) Questions ## Commercial Leak Detection: common questions ### Who is responsible for a leak at a rented property? The supply pipe belongs to the property owner, so the repair usually falls to the landlord. Who pays the water bill during the leak depends on the tenancy or lease. The report helps settle both. ### Can businesses claim a leakage allowance? Business customers in England buy their water through a retailer. Business customers claim through their water retailer instead. Keep the report and repair invoice to support the claim. ### Can you work around our opening hours? Visits can be booked for quieter times within our hours, 9am to 7pm, 7 days a week. Most detection work is done from the surface, so there is little disruption until the repair. ### Which areas do you cover? Nottingham and the whole of Nottinghamshire, including Mansfield, Beeston and West Bridgford. See [service areas](https://nottsleakdetection.co.uk/service-areas/). ### Are you open 24 hours? No. Lines are open Monday to Sunday, 9am to 7pm. Out of hours, turn off your internal stop tap to stop the flow and call us in the morning. If water is coming up in the road or on the pavement, that is on Severn Trent's side: report it free on 0800 783 4444 (+448007834444). Related ## Related services - ### [Underground Water Leak Detection](https://nottsleakdetection.co.uk/underground-water-leak-detection/) Pinpoint a leak on the buried pipe between the boundary and your house with acoustic, gas and meter tests before anyone digs. View service - ### [Trace and Access](https://nottsleakdetection.co.uk/trace-and-access/) Find the leak, open up only what is needed and document it for your insurer's trace and access claim. View service - ### [Leak Under Concrete Floor](https://nottsleakdetection.co.uk/leak-under-concrete-floor/) Pressure-test and trace a leak under a solid floor so only one section is broken out. View service Find the leak, keep the site running, and get it in writing. Call to book, or send a quote request. Lines open Monday–Sunday, 9am–7pm. 0115 839 0791 (+441158390791) [Request a quote](https://nottsleakdetection.co.uk/contact/)