Heating, air conditioning, gas & plumbing in London 24/7 Call Out – Day and Night
Burst pipe, broken boiler or no heating? Our fully qualified and experienced engineers are on hand to help across London, day and night.
- Over 25 years of experience
- Gas Safe Registered – No. 567557 (opens in a new tab)
Heating, Air Conditioning, Gas & Plumbing Services in London
From emergency repairs to new boiler installations, we look after homes, rented properties and small businesses across London. Choose a service to find out more.
Boiler & Central Heating Installation
New combi, system and regular boilers, plus complete central heating installations, fitted safely and tidily.
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What it is
We install new gas boilers and central heating systems, from a like-for-like boiler swap to a complete new system with radiators, pipework and heating controls. Every gas installation is carried out by a Gas Safe registered engineer.
When you need it
It may be time for a new boiler if yours keeps breaking down, spare parts are getting hard to find, your energy bills keep creeping up, or the boiler can no longer keep up with your home. Moving house, building an extension or converting a loft are also good moments to rethink your heating.
How we do it
We start by looking at your home, your hot water use and your existing system, then recommend the right type and size of boiler. On installation day we protect your floors, remove the old boiler, fit and commission the new one, test the whole system, complete the Building Regulations notification and show you how to use the controls.
Boiler Servicing & Repair
Annual boiler servicing, breakdown repairs and maintenance to keep your heating and hot water running.
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What it is
A boiler service is a thorough safety and performance check of your boiler. Our repair service finds and fixes the fault when your boiler stops working, leaks, loses pressure or starts making unusual noises.
When you need it
Most manufacturers recommend a service every 12 months, and it is often a condition of the boiler's warranty. Call us straight away if you have no heating or hot water, the pressure keeps dropping or the boiler is showing a fault code.
How we do it
During a service we inspect the boiler and flue, check the gas pressure and combustion, clean key parts where needed and confirm that everything is working safely. For a repair, we diagnose the fault, explain what needs doing before we start, and then fix it.
Power Flushing
A deep clean for your central heating system that removes sludge and rust to bring back heat and efficiency.
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What it is
Power flushing pushes water and cleaning chemicals through your radiators and pipework at a high flow rate to clear out the sludge, rust and scale that build up over time.
When you need it
Typical signs are radiators that are cold at the bottom or have cold patches, a noisy boiler or pump, rooms that take a long time to warm up, or dark water when you bleed a radiator. It is also worth doing before a new boiler is connected to an older system.
How we do it
We connect a power flushing machine to your heating system and flush each radiator in turn. We then refill the system with clean water and add an inhibitor to help protect it against future corrosion.
Air Conditioning Installation & Maintenance
Air conditioning installation and maintenance to keep homes and small businesses comfortable in warm weather.
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What it is
We install and maintain air conditioning for homes and small businesses, including wall-mounted split systems, to keep rooms cool and comfortable. Many modern units can also provide heating in colder months.
When you need it
Air conditioning is worth considering if rooms overheat in summer, you work from home, or you need a comfortable space for staff and customers. Existing systems also benefit from regular maintenance to keep them running efficiently.
How we do it
We look at the space with you, agree the right type and size of unit and the best position for it, then install it, test it and show you how to use it.
Landlord Gas Safety Certificate (CP12)
Annual gas safety checks and certificates for landlords and letting agents, as required by law.
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What it is
A Landlord Gas Safety Record, often called a CP12, confirms that the gas appliances, fittings and flues in a rented property have been checked by a Gas Safe registered engineer.
When you need it
Landlords must arrange a gas safety check every 12 months. A copy of the record must be given to existing tenants within 28 days of the check and to new tenants before they move in, and records must be kept for at least two years.
How we do it
We arrange a time that suits you and your tenants, check every gas appliance, fitting and flue in the property, and issue the safety record. If anything needs attention, we explain what is required and can carry out the work.
Gas Appliance Installation
Safe installation of gas cookers, hobs and fires, connected and tested by a Gas Safe registered engineer.
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What it is
We connect and install gas appliances such as cookers, hobs and gas fires, and can install or reroute gas supply pipework where needed.
When you need it
Whenever you buy a new gas appliance, replace an old one or want to move one to a new position. By law, any work on gas appliances must be carried out by a Gas Safe registered engineer.
How we do it
We check the gas supply and ventilation, install the appliance in line with the manufacturer's instructions, test for gas tightness and safe operation, and show you how everything works.
Plumbing & Emergency Repairs
All plumbing jobs, from dripping taps and leaks to burst pipes, toilets, showers and new fittings.
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What it is
We take on all plumbing jobs, large and small: leaks, burst pipes, taps, toilets, showers, sinks, valves, hot water cylinders and new pipework.
When you need it
Call us 24/7 for emergencies such as a burst pipe, a major leak or no water at all. For everyday jobs, like a toilet that keeps running, low water pressure or a new fitting, we will book a time that suits you.
How we do it
We find the cause of the problem, explain your options clearly and carry out the work neatly, leaving the area clean and tidy. In an emergency, turn off your water at the stopcock if you can, then call us.
Why Choose Cool Plumb London
A local team you can rely on, whether it's a midnight emergency or a planned installation.
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Over 25 years of experience
More than 25 years of heating, gas and plumbing work in London homes and businesses.
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Gas Safe registered
All our gas work is carried out by Gas Safe registered engineers. Register No: 567557.
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Available 24/7
Day or night, weekdays or weekends, we are here when you need us.
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Fully qualified engineers
Fully qualified and experienced engineers are on hand to help with every job, big or small.
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Prompt, reliable, friendly
We provide a prompt, reliable and friendly service, turn up when we say we will and keep you informed.
About Cool Plumb London
Cool Plumb London is a heating, air conditioning, gas and plumbing company based in North West London (NW2), with over 25 years of experience.
We work for homeowners, tenants, landlords and small businesses across London. Our approach is simple: answer the phone, turn up promptly, explain the job clearly and leave your home clean and safe.
How we work
- Clear explanations before any work starts
- Gas Safe registered, with safety at the heart of every job
- Respect for your home, and we clean up after ourselves
- Available 24 hours a day, 7 days a week
Frequently Asked Questions
Are you available 24/7 for emergencies?
Yes. We take calls 24 hours a day, 7 days a week, including nights and weekends. For burst pipes, major leaks, no heating or no hot water, call us on +44 7727 290739.
Are you Gas Safe registered?
Yes. Cool Plumb London is Gas Safe registered, Register No: 567557. You can check our registration on the Gas Safe Register website.
What should I do if I smell gas?
Leave the property, don't use electrical switches or naked flames, and call the National Gas Emergency Service on 0800 111 999 straight away. Once the supply is made safe, we can find and repair the fault.
What is a Landlord Gas Safety Certificate (CP12)?
It is the gas safety record landlords need by law. A Gas Safe registered engineer must check the gas appliances, fittings and flues in a rented property every 12 months. Tenants must receive a copy within 28 days of the check, and new tenants before they move in.
How often should my boiler be serviced?
Once a year. Regular servicing helps your boiler run safely and efficiently, and most manufacturers require an annual service to keep the warranty valid.
How do I know if my heating needs a power flush?
Common signs are radiators that are cold at the bottom, cold patches, a noisy boiler, slow heating or dark water when you bleed a radiator. We can check your system and tell you whether a power flush will help.
Do you install air conditioning?
Yes. We install and maintain air conditioning for homes and small businesses in London. We'll help you choose the right unit and the best place to fit it.
Which areas do you cover?
We are based in NW2 and work across London. Give us a call to check we can get to you.
Contact Cool Plumb London
For emergencies, please call us – we answer 24/7. For anything else, call or send us a message and we'll get back to you.
- Address
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Cool Plumb London
133 Cumbrian Gardens
London, NW2 1EJ - Phone
- +44 7727 290739
- Opening hours
- 24 hours a day, 7 days a week
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