November 25, 2025
What Documents Do I Need Before A Boiler Installation?
Before arranging a new boiler installation, it is essential to gather the right documents and information. Having everything prepared in advance ensures your installation is legally compliant, accurately planned, and completed without avoidable delays. This preparation also helps your heating engineer in Newport, Telford and Shrewsbury understand your home’s existing setup, allowing them to design a system that performs reliably and safely.
List of Documents Required for a Boiler Installation
Proof of Property Ownership or Permission
One of the first things your installer may request is proof that you are authorised to install a new boiler. Homeowners can usually confirm this by providing basic ownership details, but tenants will need written permission from their landlord. This safeguard ensures the installation does not conflict with tenancy agreements or property management rules. Without this confirmation, installers are often unable to proceed, making it an essential part of the process.
Identification and Contact Information
Providing a form of identification along with accurate contact details helps create an official installation record. This information is used during warranty registration, certification, and any future safety checks. It also ensures you can be contacted quickly if your installer has questions before or during the installation. Supplying this information early avoids delays and helps keep communication clear throughout the project.
Existing Boiler or Heating System Documents
If you have any documents relating to your current boiler, sharing them is extremely valuable. This might include previous installation certificates, service records, manuals, or user guides. These documents help your installer understand the boiler’s history, its current condition, and any past issues that could affect the new installation. For example, repeated pressure problems or previous repairs may influence decisions about pipework, flue placement, or system controls.
Previous Gas Safe Documentation
Any Gas Safe records relating to previous heating or gas work should also be included. These documents provide a history of the system’s safety checks, installation dates, and inspection results. They help your engineer identify whether there are existing issues that must be resolved before fitting the new boiler. Gas Safe documentation is especially useful in older properties, where previous work may not be fully known.
Heating System Layout Notes or Diagrams
Sometimes homeowners have diagrams or notes from earlier heating upgrades, renovations, or property extensions. While not essential, these can be extremely helpful during planning. They allow your installer to understand the layout of pipework, radiators, and controls, helping them plan the most efficient installation route. This can reduce disruption on installation day and ensure the system is configured correctly for your home’s heating needs.
Access Information for Utility Points
Before installation, your engineer will need to know where your gas meter, electrical supply, and main water stopcock are located. Although this is not a traditional document, it is essential information for completing safety checks and connecting the boiler. Clear and safe access to these areas helps your installer carry out the work efficiently and ensures that all required testing can be completed without delay.
Warranty or Insurance Paperwork
If your existing boiler is still under warranty or has been repaired under an insurance policy, sharing these documents can help your engineer understand the system’s history. They may show which parts have already been replaced, any recurring issues, or conditions that must be adhered to for coverage to remain valid. This information can also influence the recommendations for your new installation.
Planning or Building Regulation Approvals
Most domestic boiler installations do not require planning permission. However, if your property is listed, within a conservation area, or has restrictions on external changes such as flue placement, documentation may be required. Providing any existing approvals or correspondence helps your installer ensure that all changes remain compliant with local regulations. This prevents delays or complications later in the process.
Boiler Installations Across Newport, Telford and Shrewsbury
Enflame Heating & Plumbing provides professional support throughout the installation process, including guidance on the documents you need to prepare. For expert advice or to book your installation, call 01952300008 or fill out our contact form today.

