Damp patch on the ceiling, a meter that never stops or a boiler losing pressure? We test first to pinpoint the leak, open up only where it is, and repair it on the same visit in most cases.
Leak detection is the plumbing work of finding where water is escaping when you cannot see the source: a damp patch on a ceiling, a water meter that keeps turning with every tap off, a boiler pressure gauge that keeps dropping, or a bill that has jumped for no reason. In London the source is often a long way from the stain. Water runs along joists, down shared stacks and through party walls before it shows, so the leak in a converted house can be one floor up or one flat across.
Call when: a stain or bubble is spreading on a ceiling or wall; you can hear water running with everything switched off; the floor feels damp or a skirting is swelling; or your heating keeps losing pressure. The sooner the source is found, the less ceiling, floor and plaster has to be opened up.
We work from the least invasive test to the most, and only open up once we know where to look.
We isolate the supply, heating and waste circuits one at a time. If the meter stops or the pressure holds, we know which system is leaking before anything is lifted.
Supply and heating pipework is pressure tested to confirm a leak and how fast it is losing water. It also proves the repair afterwards.
Moisture readings across walls, floors and ceilings show where water is spreading from, so we can trace it back towards the source.
Not every leak is on a pressurised pipe. Shower trays, bath seals, waste joints and shared soil stacks leak only when they are used, so we test them under use.
Once the source is pinned down we open the smallest area we can: one floorboard or one panel, not a whole ceiling.
Most leaks are repaired on the visit they are found, with copper, plastic and push-fit fittings carried on the van.
We fix where the water is coming from, not just the stain it left, so the problem does not come back after the ceiling is repainted.
Testing first means we open up only where the leak is, which keeps the making-good small.
In converted houses we can liaise with the neighbouring flat or freeholder when the leak starts on their side.
You get a written price before any repair work starts, and a 12-month workmanship guarantee on the repair.
Tell us what you can see and where. Call 020 8068 2295; if water is actively coming through, use the 24 hour line.
We isolate each system and test it to find which one is leaking.
Moisture readings and targeted checks narrow it to a precise spot.
You agree the repair before we start.
We repair the leak and re-test so you know it is fixed.
If the leak turns out to be an emergency, see our emergency plumber page. For heating pressure loss, see central heating and power flushing.
Finished jobs from the boroughs we cover. Our own photographs, never stock.
Rough plumbing pipework, copper + yellow gas fittings (BEFORE)
View Project Details
WC, grey concrete-effect tile, recessed shelves
View Project Details
Bathroom refurbishment: loft bathroom with walk-in shower, polished-concrete-effect large-format tiling, tiled bath panel, wall-hung basin and chrome heated towel rail
View Project Details
Bedroom, grey carpet, white walls, bay window
View Project Details
Bedroom, grey carpet, fitted wardrobes
View Project Details
General repairs: rear garden patio laid in large-format grey concrete paving with a recessed inspection-cover tray, rendered boundary walls and raised planters
View Project DetailsBased on 82 Google reviews
Excellent service from ARI maintenance, arrived on time and fixed the problem very promptly they were amazing to deal with from start to finish As you can imagine the stress I was under after discovering a severe leak in my bathroom but thanks to ARI maintenance they took the stress out of the situation and had it all sorted in no time. Would definitely use them again and recommend to friends and family. They definitely deserve the 5 stars! Thanks again
Read more on GoogleWe hired Ari Maintenance to take care of some plumbing repairs at our house. They were really nice, sensitive to our schedule, and professional from the first quote to the end of the job. The job was done efficiently, and the communication was excellent throughout the entire project. They went the extra mile to provide an exceptional service. Highly recommend.
Read more on Googlethis company is extremely helpful and reliable, always a pleasure to work with especially Archie and Arianne! i highly recommend for all types of works, prices are fair and our landlords are always happy with the quality of their work and customer service!
Read more on GoogleGreat service fast and efficient
Read more on GoogleGreat service
Read more on GoogleBurst pipe at midnight? Water through the ceiling? One call ends the panic. 24-hour emergency plumbing across London and the M25, typical 1–2 hour response, parts on the van.
Emergency PlumberCold radiators, noisy pipes or a boiler that keeps losing pressure? We diagnose the heating system first, then power flush, repair or fit radiators, with a written price before we start.
Central Heating & Power FlushingFrom a dripping tap to a full bathroom re-plumb, ARI handles domestic and commercial plumbing across London and the M25: fully insured plumbers, written quotes before any work, 12-month guarantee.
PlumbingNo pressure, no obligation. A free survey where the job needs one, an itemised written quote before anything starts, and a 12-month workmanship guarantee.
Call Ari on 020 8068 2295·Get a free quote online
London and the M25
Phone: 020 8068 2295
Email: bookings@arimaintenance.co.uk
Hours: Mon to Fri 7am to 6pm · 24 hour emergency line