What is the cost of a new boiler?

Boiler prices range from £500 for a basic gas model up to £2,200 for a large external oil boiler. But remember, you’ll also need to pay for installation.

How reliable are boilers?

According to a 2012 Which survey, it was found that two thirds of people who’d bought a boiler since April 2005 have experienced some kind of fault, which meant their boiler didn’t heat their hot water or radiators. Not all of these faults needed repairing, but 32% of boiler owners have had a visit from a boiler repairer.

How can I find a reliable gas boiler engineer?

Quite often you can go on recommendations from friends or colleagues, but whoever you choose to service your boiler, make sure he or she is on the Gas Safe Register. This is the official gas registration body for the United Kingdom, Isle of Man and Guernsey, appointed by the relevant Health and Safety Authority for each area.

By law all gas engineers must be on the Gas Safe Register. Gas Safe Register replaced CORGI as the gas registration body in Great Britain and Isle of Man on 1 April 2009 and Northern Ireland and Guernsey on 1 April 2010.

What is the cost of installing a new boiler?

It really depends upon what type of boiler you are going to choose, but these prices cover your basic requirements:

New boiler: £500-£1,500 depending on make and model

Heating engineer labour: £500-£1,000

Optional requirements:

Adding a magnetic filtration system: £120

Powerflushing 10 radiators: £300

Adding new radiators: £70-£150 per radiator depending on size & position

New wireless programmer and thermostat: £180

Adding Thermostatic Radiator Valves (TRVs): £20 per radiator

New hot water cylinder  (120 litre): £250-£300

New hot water cylinder  (250 litre solar compatible): £800-£1,000 depending on current installation

Upgrade gas supply pipe from meter to boiler to larger diameter pipe: £120-200

Install condensate drain pipe: £150-£250

Condensate pump, if access to a drain from the boiler is difficult: £100

How can I prevent my boiler’s condensate pipe from freezing?

To prevent freezing, boilers retain condensate water and then let it out in a gush. However, particularly cold weather can still cause the water in the condensate pipe to freeze. This is especially true if the condensate pipe is external. If your condensate pipe is frozen, your boiler will probably switch itself off – exactly the opposite of what you need in freezing weather.

To get your boiler going again, try the following steps: Use warm, but not boiling, water to unfreeze the pipe’s contents. This is only a temporary fix if the weather remains cold.  Lag the pipe with insulating material. If the pipe is at a shallow angle or very narrow, it may need to be reinstalled. The larger and more vertical the pipe is, the better.