Capital Boilers

North London Gas & Heating Engineer

Capital Boilers – your North London based Gas Safe Registered Heating & Boiler Breakdown Service across North London postcodes.

24-Hour response to boiler breakdowns and plumbing emergencies. Above all, a trusted heating specialist, giving 1 Year Guarantee on the work carried out. Call 07951 521 281

gas-safe logo

Gas Safe Reg No: 139826

Capital Boilers is Gas Safe registered and carry an ID.


Gas & Heating Services

Fitting, repairing or replacement of all types of boilers. Maintain pumps, heat exchangers, valves and central heating controls. thermostats and Carbon Monoxide controls.

Power Flushing

Flushing your heating system is giving you lower heating bills, extending the life of your boiler and the rest of your system, and saving you money

Plumbing Services

Diagnosing and fixing obvious and less obvious plumbing problems in residential or commercial properties.

Gas Safety Certificates

Gas Safety checks for home owners, landlords, estate agents and property managers. Discounts available.


Gas Safety advice

Emergency Gas Safety – Carbon Monoxide

What to do when you smell gas or suspect a gas leak

FREE Call: 0800 111 999 | Minicom/Textphone: 0800 371 787


  • Do NOT Smoke or strike matches
  • Do NOT turn electrical switches on or off


  • Put out naked gas flames
  • Turn off the meter at the control valve
  • Open doors and windows
  • Keep people away from the affected area
  • Get medical help if you are feeling unwell

Switch Off Your Gas

Gas Valve on offFind the Isolation Valve at your meter. To turn off the valve simply pull or push the valve into a horizontal position so it sits at a 90 Degrees angle to the valve.

Red Isolated Pipes with Valves

What is Carbon Monoxide?

“Carbon monoxide (CO) is a colourless, odourless, tasteless, poisonous gas produced by incomplete burning of carbon-based fuels, including gas, oil, wood and coal. Carbon-based fuels are safe to use. It is only when the fuel does not burn properly that excess CO is produced, which is poisonous. When CO enters the body, it prevents the blood from bringing oxygen to cells, tissues, and organs.”

What are the symptoms of Carbon Monoxide Poisoning ?

Early symptoms of carbon monoxide (CO) poisoning can mimic many common ailments and may easily be confused with food poisoning, viral infections, flu or simple tiredness. Symptoms to look out for include: – headaches or dizziness – breathlessness and tiredness – nausea and loss of consciousness – pains in the chest or stomach – erratic behaviour and/or visual problems


Schedule An Appointment
Or Arrange a Quote

Postal Address

Capital Boilers
41 Warwick Gardens, London N4 1JD