Water on the floor, a boiler gone cold, a drain backing up? Triage it first — thirty seconds of the right moves saves hours of damage — then call the number below, any hour, to be connected with a local plumber covering Derry and the villages around it.
Said plainly before anything else: this is a call-connection line, not a plumbing firm. The number puts you through to a local, independent plumbing professional — ask them anything, including price, before you agree to any work.
Call nowTap to ring — a real person answers, no forms, no callback queue.
Emergency medicine sorts patients before it treats them. Do the same with your plumbing — find your situation below, do what the card says, and the guides fill in the rest.
Each card opens with the verdict — do that first — then the detail underneath explains it.
Under the kitchen sink in most homes. Brass valve on the incoming pipe — clockwise until it stops.
In the older terraced streets on both sides of the Foyle — Cityside and Waterside alike — the stopcock is nearly always low at the back of the sink cupboard, often behind a decade of cleaning bottles. In newer estates out towards Culmore or Strathfoyle, and in bungalows and extensions, it wanders: try the hall cupboard, the utility room, the garage, or under the stairs where the mains pipe first enters.
Rural properties out by Claudy or beyond Eglinton often have an outside stop valve too, under a small metal or plastic lid near the boundary. One warning from long experience: a stopcock untouched for twenty years can be seized. Steady pressure with a cloth is fine; wrenching until the spindle snaps is how one emergency becomes two. Best of all — go and find yours tonight, while the floor is dry.
One dip: minor. A repeat pattern: a slow leak somewhere. Top up once via the filling loop; if it slides again within days, book a proper look.
Most sealed systems sit around 1 to 1.5 bar cold — the gauge on the front and your boiler's manual tell you the exact range. Below about 1 bar the heating gets sluggish or locks out, and repressurising through the filling loop is a job most householders can do with the manual open beside them.
The pattern is the diagnosis. Pressure that keeps falling means the system is quietly losing water — often a weep at a radiator valve or a hidden joint — and every top-up just feeds the leak. Pressure well above 2.5 to 3 bar, or climbing after you bleed radiators, points the other way: a filling loop left open or an expansion vessel fault, and worth a professional eye before the relief valve starts dumping water down the outside wall.
Stopcock off first, then thaw gently — hairdryer on low, warm towels, patience. Never a flame, never boiling water on the pipe.
The north-west's winters are mostly mild and damp, which is exactly the trap: a soft fortnight, then a hard frost sweeps in off the Donegal hills and finds every unlagged pipe in a loft, garage, outbuilding or external wall. The first symptom is a tap that slows to a dribble in freezing weather.
Turn the water off before you thaw anything — you don't yet know whether the ice has already split the pipe, and the flood only starts when it melts. Work heat in gently from the tap end back towards the blockage. Rural homes with long supply runs from the road feel this hardest; lagging those runs in autumn is the cheapest plumbing work you'll ever commission. If the pipe has split, leave the water off and ring — thawing a burst pipe with the mains on just books your flood in for an hour's time.
Old pipework in the terraces, exposed pipework in the countryside. Both manageable — if you act on the early signs.
The city's older terraces, some of them well over a century old, tend to carry plumbing that has been patched in stages: mixed metals, tired joints, the odd original soil stack corroding quietly at a hub. That's not a disaster in waiting — it's a reason to treat a persistent drip, a damp patch on a party wall or a gurgling stack as an early warning rather than a quirk, because in an old house one failed joint usually has neighbours.
Out in the rural hinterland — towards Claudy, past Eglinton towards the Roe Valley — the problems change shape: long supply runs from the road, unlagged pipes in outbuildings, septic tanks instead of mains drainage. Different faults, same principle: say which kind of property yours is when you ring, and the plumber arrives with the right picture already forming.
The city on both banks of the Foyle and the settlements around it, out towards Limavady. Just outside the list? Ring anyway — coverage flexes with the plumber's day.
Whether you write Derry or Londonderry on the envelope, it's the same city and the same line — these pages say Derry because that's what most callers say. Coverage runs from the city centre out to Culmore on the shore of the Foyle, across the Waterside through Strathfoyle and Drumahoe, south to New Buildings, and east through Eglinton, Greysteel and Ballykelly in the Limavady direction, with Claudy covered up the Faughan valley.
Three facts. That's the whole pitch.
Bursts and breakdowns don't keep office hours, so neither does the line — nights, weekends and bank holidays included.
You're connected to an independent local plumbing professional covering Derry and its surrounding villages — not a national call centre squinting at a map.
No made-up arrival times, no guessed prices, no fabricated star ratings. You'll hear plainly what happens next, and the decisions stay yours.
Each guide opens with the verdict, then earns it — written for someone standing in a wet kitchen, not for a search engine.
The sixty-second triage: stopcock, taps, electrics — and whose pipe the fault is actually on.
Read the guide →Pressure drops, no heat, error codes — and the gas rule that outranks everything else.
Read the guide →What's worth trying yourself, what should never go down a drain, and when it's NI Water's sewer.
Read the guide →How charging really works, hedged national ballparks, and the questions that stop a surprise bill.
Read the guide →Pressure, timer, tripped switch, diverter valve — the checks worth running before you ring.
Read the guide →Prevention that costs pennies, thawing that doesn't end in a flood — and the blowtorch rule.
Read the guide →Damp patches, dropping pressure, the honest stopcock test — and when a quiet leak turns urgent.
Read the guide →Including the two things this line genuinely cannot promise you.
There's no honest number to give you before the plumber knows the job — price hangs on the fault, the parts, the access and the hour. This line doesn't set or know the plumber's rates. The rule that protects you never changes: ask for a price, or a call-out fee plus hourly rate, before any work starts.
It depends where the plumber is when you ring and what's already booked — a house near the city centre is a different run from a farmhouse out past Claudy. You'll get a realistic estimate on the call itself, not an invented number of minutes printed on a website.
Stopcock first, before anything else — clockwise until it stops, usually under the kitchen sink. Then open the cold taps to drain the pipes, and if water is near sockets or light fittings, switch the electricity off at the consumer unit only if you can reach it without standing in water. Then ring.
Generally across the UK the landlord is responsible for the fixed plumbing and heating — boilers, pipework and water systems — while tenants must report faults promptly and cover damage they caused themselves. Details vary, so check your tenancy agreement or ring your landlord or agent before arranging work if there's any doubt.
That outranks every plumbing job on this page. Leave the property now, don't flick switches or strike flames, and once you're outside at a safe distance call the National Gas Emergency Service on 0800 111 999. Only go back in when you're told it's safe to do so.
Firm, steady pressure with a cloth for grip is as far as you go — forcing a seized stopcock until the spindle snaps trades one emergency for two. If it won't move, check for an outside stop valve under a small cover near the boundary, and ring; a plumber can free or replace the valve and talk you through the options meanwhile.
One number, any hour, and you're talking to a local plumber covering Derry, both banks of the Foyle and the villages beyond.
Call now