Back Guide to Having your Gas Boiler Replaced


There are many reasons why your boiler may need replacing.
These are a few samples:-

  • Your boiler has broken down and the parts required are obsolete
  • Following an annual gas service your boiler has been condemned
  • The boiler replacement is part of other refurbishment works which you may be doing
  • You want save money on your fuel bills

Installation Survey

During the survey you will need to give the surveyor access to all rooms in your property, including the gas meter and loft space (if you have a loft) so a full survey can be carried out.

We will advise you of:

  • The agreed location of the new boiler
  • The agreed location of new radiators (if required)
  • The agreed location and routes of new pipe work (if required)
  • If any floor coverings that may be need to be lifted
  • The make and type of boiler being installed
  • The need for asbestos survey
  • How long the works will take
  • If any of your personal possessions to be cleared or moved to allow access before the work starts

Your Responsibilities


  •  During a boiler installation your floor coverings may need to be lifted to access work below floorboards and we will advise you of this during our installation survey. Our engineers will lift flooring; however this will be done at your own risk as our engineers are heating specialist not a flooring specialist. You will be asked to sign a disclaimer to confirm you are happy for the heating installer to lift and relay your flooring or if you prefer, you can employ your own flooring specialist to lift and relay the flooring for you.

Boxing in

  • Our Engineers may need to expose pipe work which is boxed in; they will expose the pipe work with causing the minimal of damage and reinstate the boxing in as best as possible. Paintwork may be cracked and damaged during this process.

Wall Tiles

  • If a tile is cracked or damaged due to the heating works, it will be the responsibility of the homeowner to replace/repair these tiles.


  • Sometimes when your old boiler is removed and a new boiler is installed this will show an area not previously decorated. Matching in the paint-work to this area will be your responsibility.

Making Good

  • Where our engineers has made holes, removed vents or pipes, the affected area will be filled, plastered and sanded ready for decorating. If a boiler is fitted in the same position as the previous boiler but there is a difference in the unit’s size, the installer is only responsible for filling in the holes.

Kitchen Units

  • It may be necessary to move a kitchen unit to allow enough space for the new boiler. The contractor will try to re-site this unit if this is possible, however our engineers will discuss this with you during the installation survey.

Airing Cupboards

  • Where we remove redundant water cylinders from airing cupboards because we are installing a combination boiler, our engineers will remove the redundant pipe work and carry out the making good to the walls and ceiling.

Day of the Installation

Existing Gas System

  • Our Gas Engineer prior to disconnecting the existing system will carry out a Gas Safety Check of the existing pipe work and any existing appliances. The findings of this may discover existing appliances such as gas fires, cookers etc. may be condemned by the gas engineer due to safety. Additional works may be required which may incur additional costs. Our Gas Engineer will explain the findings with you prior to commencing with the other works.

Temporary Heating

  • During the works temporary electrical heaters can be supplied if required. Our Engineer will provide these on the day.

Your Safety

  • Your health and safety is of paramount importance to us, so please take extra care when operatives are working in and around your home. Any safety issues will be discussed with you during the initial installation survey.


  •  It is important to keep your children away from work areas. Please do not let children play within or close to the working area, the operative’s equipment, materials, tools and rubbish. We will not work in your home where there are children under the age of 16 unsupervised.


  •  Please keep your pets away from the working area, the operative’s equipment, materials, tools and rubbish and keep them secure when the works are being carried out.

Code of Conduct

  • Our engineer’s staff will be polite, co-operative and helpful to you at all times. Our engineer’s will wear clearly visible identification badges and company uniforms.
  • They will not be allowed to play radios or smoke whilst working in your home. Our engineers will only use your facilities after permission is provided by yourselves.


  • If you have to run errands whilst the operatives are working in your home or you are unable to be present whilst these works are taking place, you need to leave the operatives with keys. You will be asked to sign a disclaimer to say that you are happy to leave the operatives in your home without you being present and you are happy to provide them with keys.

Associated Works

  •  Our Engineers will aim to have the new boiler installed and commissioned in one day, this is subject to the works involved and will be discussed at survey stage. Any making good and electrical works will be carried out on the next working day.

Once Works are completed


  •  Once the new boiler has been installed, our engineer will show you how to use the new system, which will include how to programme the boiler. You will be given a copy of the user instructions. You will be asked to sign a Landlord’s Gas Safety Record and you will be given a copy of this to confirm the new system has been tested and is satisfactory.

Satisfaction Questionnaire

  • You may be asked to complete a customer satisfaction questionnaire either on a handheld device, postal form or a telephone survey. We will use this to monitor our engineer’s performance.

Handover Documents

  • Once all works are complete the following documents will be supplied for your records
  •  User Manuals
  • Gas Safety Record
  • Boiler Benchmark – Gas Boiler Commission Checklist
  • Electrical Minor Works Certificate (if required)
  • Warranty Information & Requirements
  • Building Control Notification of Works