MML Plumbing Ltd

MML Plumbing Ltd Trusted Plumbers in North London! đź”§ Reliable Gas Safe registered plumbing & heating experts in Barnet.

We offer boiler installs, heating repairs, leak detection & plumbing surveys. Trusted, fast & professional service! 📲 Book now: www.mmlplumbing.co.uk

Leak Detection in Southgate – Thermal Imaging and Hydrogen Leak Detection Beneath Wooden FlooringWe attended a property ...
05/06/2026

Leak Detection in Southgate – Thermal Imaging and Hydrogen Leak Detection Beneath Wooden Flooring

We attended a property in Southgate after the homeowner reported repeated boiler pressure loss and damp odours developing near the ground-floor hallway. No visible leaks were present around radiators, exposed heating pipework or the boiler itself.

A structured non-invasive leak detection investigation was carried out using pressure testing, thermal imaging and hydrogen tracer gas diagnostics.

Pressure testing confirmed active water loss within the sealed heating system beneath the property. Thermal imaging identified subtle temperature anomalies beneath sections of the suspended timber flooring, suggesting concealed moisture and hidden heating pipe failure below the floor structure.

Hydrogen tracer gas was then introduced into the heating circuit. Using calibrated gas detection equipment, elevated hydrogen readings were identified near the hallway radiator zone. The gas concentration increased consistently within one defined section of flooring, confirming the exact leak location beneath the timber subfloor.

Controlled floor access exposed a split heating return pipe beneath the wooden floorboards without unnecessary disruption to the surrounding areas.

MML Plumbing Ltd provides professional leak detection in Southgate using hydrogen tracer gas, thermal imaging, acoustic tracing and evidence-based non-invasive diagnostic methods to locate concealed water leaks accurately.

Identifying a leak early can save you thousands in repair costs and protect the integrity of your property. One of the m...
04/06/2026

Identifying a leak early can save you thousands in repair costs and protect the integrity of your property. One of the most effective methods we employ at MML Plumbing is thermal imaging. This non-invasive technology allows us to detect temperature differences in walls and floors, which often indicate the presence of moisture or leaks.

Imagine this: a homeowner in North London was experiencing unexplained dampness in their living room. Traditional methods would have involved tearing down walls, causing disruption and expense. Instead, we utilized thermal imaging and quickly pinpointed a leak behind the plasterboard that had been undetected for months. The result? A swift repair that saved the homeowner from further damage and costly renovations.

Investing in professional leak detection services not only ensures peace of mind but also protects your property’s value. Don’t let hidden leaks go unnoticed—take the proactive approach with MML Plumbing’s expert diagnostics.

Have you experienced any strange damp spots in your home? Let us know your thoughts! 💧🏠

Leak Detection in Cricklewood – Underground Water Leak Located on External Supply PipeWe attended a property in Cricklew...
04/06/2026

Leak Detection in Cricklewood – Underground Water Leak Located on External Supply Pipe

We attended a property in Cricklewood following reports of unexplained high water bills and persistent dampness near the external driveway area. No visible plumbing leaks were identified inside the property.

A structured mains water leak detection investigation was carried out using pressure testing, acoustic tracing and hydrogen tracer gas diagnostics.

The incoming cold-water main was pressure tested, confirming active water loss beneath the external ground surface. Acoustic leak detection equipment identified a strong leak frequency beneath the driveway entrance. Hydrogen tracer gas was then introduced into the pipework, where elevated gas readings confirmed the exact leak location beneath the buried supply line.

Controlled excavation exposed a failed underground cold-water supply pipe beneath the driveway surface.

Underground mains leaks can continue undetected for long periods, often causing high water bills, soil saturation and hidden structural moisture before visible flooding develops.

MML Plumbing Ltd provides professional leak detection in Cricklewood using acoustic testing, hydrogen tracer gas, thermal imaging and non-invasive investigation methods to locate concealed underground water leaks accurately.

Leak Detection in Colindale – Boiler Pressure Loss Investigation Beneath Wooden FloorsA property in Colindale reported r...
03/06/2026

Leak Detection in Colindale – Boiler Pressure Loss Investigation Beneath Wooden Floors

A property in Colindale reported repeated boiler pressure loss despite recent heating maintenance works. The customer noticed no visible leaks around the boiler, radiators or exposed pipework.

We carried out a structured central heating leak detection investigation using pressure testing, hydrogen tracer gas and acoustic leak detection equipment.

Pressure testing confirmed active water loss within the sealed heating system. Hydrogen tracer gas was introduced into the heating pipework, and elevated readings were identified beneath the suspended timber flooring within the hallway area. Acoustic tracing equipment further confirmed the exact leak position beneath the floorboards.

Targeted floor access exposed a split heating flow pipe beneath the timber subfloor structure.

Heating leaks beneath wooden floors often remain concealed for extended periods before visible signs develop. Repeatedly topping up a heating system without diagnosis may accelerate corrosion and further system deterioration.

MML Plumbing Ltd provides professional leak detection in Colindale using hydrogen tracer gas, acoustic tracing, thermal imaging and pressure testing to locate hidden heating leaks accurately.

Leak Detection in Whetstone – Hidden Shower Leak Causing Damp Wall DamageWe attended a property in Whetstone after the h...
02/06/2026

Leak Detection in Whetstone – Hidden Shower Leak Causing Damp Wall Damage

We attended a property in Whetstone after the homeowner reported damp patches and peeling paint forming on the wall adjacent to the shower enclosure. No visible plumbing leaks were present at the time of inspection.

A structured leak detection investigation was carried out using moisture mapping, thermal imaging and borescope inspection equipment.

Moisture readings identified elevated saturation behind the tiled shower wall and along the skirting level. Thermal imaging confirmed moisture spread within the wall structure but did not identify a burst pipe or active pressurised leak. Inspection beneath the shower tray revealed failed silicone seals and cracked grout joints, allowing water to track behind the tiled surfaces during use.

Controlled shower testing reproduced the leak immediately, confirming water ingress behind the shower enclosure and into the surrounding wall structure.

The investigation confirmed waterproofing failure rather than concealed pipework failure.

MML Plumbing Ltd provides non-invasive leak detection in Whetstone using thermal imaging, moisture diagnostics, borescope inspections and evidence-based testing to identify hidden bathroom and shower leaks accurately.

Leak Detection in Totteridge – Underfloor Heating Leak Located Beneath Screed FloorA homeowner in Totteridge reported gr...
01/06/2026

Leak Detection in Totteridge – Underfloor Heating Leak Located Beneath Screed Floor

A homeowner in Totteridge reported gradual pressure loss within the underfloor heating system and isolated warm patches appearing on the tiled floor surface. No visible leaks were present around the manifold or boiler equipment.

We carried out a non-invasive leak detection investigation using pressure testing, thermal imaging and hydrogen tracer gas diagnostics.

Pressure testing confirmed active water loss within the underfloor heating circuit. Thermal imaging identified an abnormal heat pattern beneath one section of the floor, suggesting concealed pipe failure below the screed layer. Hydrogen tracer gas was introduced into the heating pipework, and elevated gas readings confirmed the precise leak location.

Controlled floor access exposed a damaged underfloor heating pipe beneath the screed floor without unnecessary disruption to the surrounding areas.

Underfloor heating leaks are often concealed for long periods and may only become visible once structural moisture or floor movement develops.

MML Plumbing Ltd provides professional leak detection in Totteridge using hydrogen tracer gas, thermal imaging, acoustic tracing and pressure testing to locate concealed heating leaks accurately.

Did you know that a small, hidden leak can cause significant damage over time? 🏠💧 Many homeowners, landlords, and proper...
31/05/2026

Did you know that a small, hidden leak can cause significant damage over time? 🏠💧 Many homeowners, landlords, and property managers may not realize that by the time a leak becomes visible, it could have already caused extensive damage to walls, flooring, and even the structural integrity of your property.

One valuable insight to keep in mind is the importance of regular inspections and prompt action when you suspect a leak. While it might be tempting to wait and see if the issue resolves itself, that approach can lead to costly repairs and inconveniences down the line. Instead of relying on guesswork, consider professional leak detection services like ours at MML Plumbing.

Using advanced techniques such as thermal imaging and acoustic testing, we can pinpoint the exact location of a leak without invasive measures. This means no more tearing down walls or lifting floors unnecessarily! 🚫🛠️

Have you experienced unexplained water stains or dampness in your home? These could be signs of a hidden leak. Don't wait for the problem to escalate. Reach out to our team today, and let us help you protect your property with our expert services!

Have you ever dealt with a leak in your property? Share your experiences in the comments below!

Leak Detection in Mill Hill – Ceiling Leak Investigation Using Thermal Imaging and Moisture MappingWe attended a propert...
31/05/2026

Leak Detection in Mill Hill – Ceiling Leak Investigation Using Thermal Imaging and Moisture Mapping

We attended a property in Mill Hill after the customer reported ceiling staining and intermittent damp patches affecting the kitchen area below an upstairs bathroom. Previous inspections had not confirmed the source of the leak.

A structured leak detection investigation was carried out using thermal imaging, moisture meter testing and endoscopic inspection equipment.

Thermal imaging identified abnormal moisture patterns within the ceiling structure beneath the bathroom floor above. Moisture readings confirmed elevated saturation around the affected ceiling and wall junctions. Inspection beneath the bath panel identified failed silicone seals around the bathtub perimeter and moisture tracking beneath the tiled floor.

Controlled water testing reproduced immediate leakage beneath the bath area, confirming active water ingress into the ceiling void below.

The investigation confirmed that the ceiling leak was caused by failed bathroom waterproofing rather than a burst pipe within the ceiling structure.

MML Plumbing Ltd provides evidence-based leak detection in Mill Hill using thermal imaging, moisture mapping, borescope inspections and non-destructive testing to locate hidden bathroom and ceiling leaks accurately.

Leak Detection in Colney Hatch – Mains Water Leak Identified Beneath Entrance PathA property in Colney Hatch reported co...
30/05/2026

Leak Detection in Colney Hatch – Mains Water Leak Identified Beneath Entrance Path

A property in Colney Hatch reported continuous external water meter movement and damp conditions forming near the entrance area. Internal plumbing checks had previously shown no visible leaks inside the property.

We carried out a structured mains water leak detection investigation using pressure testing, acoustic tracing and hydrogen tracer gas technology.

The incoming cold-water supply was isolated and pressure tested, confirming active water loss between the street meter and the property. Acoustic leak detection equipment identified a consistent leak frequency beneath the entrance pathway. Hydrogen tracer gas was then introduced into the supply pipework, and elevated gas readings confirmed the exact leak location beneath the external concrete surface.

Targeted excavation exposed a failed section of buried cold-water mains pipe at a compression joint.

Underground mains water leaks can continue undetected for long periods before visible flooding occurs, often causing high water bills and hidden structural moisture issues.

MML Plumbing Ltd provides professional leak detection in Colney Hatch using acoustic testing, hydrogen tracer gas, thermal imaging and non-invasive diagnostic methods to locate concealed underground water leaks accurately.

Leak Detection in Cockfosters – Hydrogen Leak Detection for Heating Pressure LossWe attended a property in Cockfosters a...
29/05/2026

Leak Detection in Cockfosters – Hydrogen Leak Detection for Heating Pressure Loss

We attended a property in Cockfosters after the customer reported repeated boiler pressure loss despite recent servicing works. No visible leaks were present around radiators, valves or exposed heating pipework.

A structured central heating leak detection investigation was carried out using pressure testing, thermal imaging and hydrogen tracer gas technology.

Pressure testing confirmed active system loss within the heating circuit beneath the property. Hydrogen tracer gas was introduced into the sealed system, and calibrated gas detection equipment was used systematically across the floor areas.

Elevated hydrogen readings were identified near the dining room radiator circuit. The concentration increased consistently at one defined section of the floor, confirming concealed heating pipe failure beneath the timber floorboards.

Targeted floor access exposed a split heating return pipe beneath the suspended timber structure.

Heating pressure loss is commonly caused by hidden leaks beneath floors where no visible water is present.

MML Plumbing Ltd provides professional leak detection in Cockfosters using hydrogen tracer gas, acoustic tracing, thermal imaging and pressure testing to locate concealed heating leaks without unnecessary damage.

Address

103 Ribblesdale Avenue
London
N113AW

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

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