Answered right now, 24/7
Emergency plumber in South London
Burst pipe, gas leak, no heating, water through a ceiling — a Gas Safe registered engineer, 24 hours a day, across South West London, Croydon and Sutton. A real person answers the phone at 3am, and you get the price and a realistic arrival time before anyone sets off.
0208 226 0205- Gas Safe registered
- No night or weekend surcharge
- Priced on the phone, not the doorstep
Emergency call-out prices
- Emergency water leak call-out
- £150
- Emergency gas leak call-out
- £180
- Boiler / heating breakdown call-out
- £120
Same price at 2am on a bank holiday as at 2pm on a Tuesday. The breakdown fee comes off your repair if you go ahead.
What to do in the next sixty seconds
Before you call anyone, these steps limit the damage. They are the same things you would be talked through on the phone.
Isolating the leak: talked through by phoneYou can smell gas
Do not call InstaGasWorks first.
- Leave the building and stay outside.
- Do not touch light switches, plugs or anything electrical.
- Call the National Gas Emergency Service on 0800 111 999 — free, 24/7.
- Once you are safe and they have made it safe, call 0208 226 0205 to put it right.
Water where it shouldn't be
Stop the flow, then call.
- Turn the water off at the stopcock — usually under the kitchen sink, or where the mains enters the house.
- Open the cold taps to drain the pipes down.
- If water is near lights or sockets, switch off at the consumer unit.
- Call 0208 226 0205. You get the price on the phone before your engineer sets off.
No heating or hot water
Two quick checks first.
- Check the boiler pressure gauge — below 1 bar usually means it needs repressurising.
- Check the thermostat and timer have not been knocked or run out of battery.
- Check other gas appliances work; if nothing does, it may be a meter or supply issue.
- Still nothing? Call now: breakdown call-outs are £120, deducted from the repair.
If you can smell gas, the National Gas Emergency Service (0800 111 999) comes first, every time. It is free, staffed 24/7, and they will make the supply safe. InstaGasWorks puts it right afterwards.
Is it actually an emergency?
An emergency call-out costs more than a booked appointment, so it is worth thirty seconds working out which one you need. Ring with something from the right-hand column and you will be told to book it normally and save the difference.
Call now
- Water you cannot stop, or a burst pipe
- A smell of gas, after you have called 0800 111 999
- Water near lights, sockets or the consumer unit
- No heating or hot water in cold weather
- A leak coming through a ceiling
- No usable toilet in the property
Book it normally and pay less
- A dripping tap or a running cistern
- One cold radiator when the rest are warm
- A slow-draining basin or bath
- A boiler that works but needs its annual service
- A gas safety certificate for a tenancy renewal
- A quote for a new boiler, bathroom or kitchen
See the full schedule of rates for every published price.
Where InstaGasWorks can reach quickly
Every area covered is within about 25 minutes of the base on Mitcham Lane, Streatham. That is the whole reason the patch is this tight — an emergency service that cannot actually get to you is not one.
Battersea · Putney · Balham · Tooting · Wandsworth · Clapham · Streatham · Wimbledon · Colliers Wood · Morden · Dulwich · Croydon · Thornton Heath · Norbury · Sutton · Mitcham · Carshalton · Wallington · All areas covered
Every postcode ~25 min from baseEmergency questions, answered
The things people ask at 2am, answered here so you do not have to ask them at 2am.
How much does an emergency plumber cost?
The emergency water leak call-out is £150 and an emergency gas leak call-out is £180, day or night: the same price at 2am on a bank holiday as at 2pm on a Tuesday. A boiler or heating breakdown call-out is £120, and that fee comes off the repair if you go ahead. You are told the figure on the phone before your engineer sets off, never on the doorstep.
Do you charge more at night, at weekends or on bank holidays?
No. Plenty of firms run an out-of-hours multiplier: you ring at midnight and find the rate has doubled. The InstaGasWorks rate does not change. The call-out price you are quoted on the phone is the price on the invoice whatever the clock says.
How quickly can you get to me?
The whole patch sits within about 25 minutes of the InstaGasWorks base on Mitcham Lane in Streatham, which is the reason it is kept deliberately tight. For genuine emergencies the aim is to be with you within the hour across Streatham, Tooting, Balham, Norbury and Mitcham, and you get a realistic arrival time on the phone rather than an all-day window.
What counts as a real emergency?
Water you cannot stop, a suspected gas escape, no heating or hot water in cold weather, a leak near electrics, or a blocked soil pipe with no usable toilet. A dripping tap, a running cistern or a single cold radiator is not an emergency: it is cheaper for you to book those as a normal appointment, and you will be told so on the phone rather than sold a call-out you do not need.
Are you a 24 hour plumber?
Yes — the phone is answered by a real person 24 hours a day, including weekends and bank holidays. You are not leaving a voicemail or talking to an answering service that pages someone in the morning.
Is your emergency engineer Gas Safe registered?
Yes. InstaGasWorks is Gas Safe registered and carries the ID card to every gas emergency. Only a Gas Safe registered engineer may legally work on gas appliances in the UK, and you are entitled to ask to see the card before any work starts.
Still going wrong? Ring now.
A real person, any hour. You will get the price and a realistic arrival time before your engineer leaves, and if it can wait until morning, you will be told so.

