Documents to keep after improving your home

Home-improvement paperwork often ends up split between email, paper folders and the installer’s online portal. Keeping a clear record helps you understand what changed, who completed the work and what evidence may still matter later.

1. Quotations, contracts and invoices

Keep the agreed scope, final invoice and evidence of payment. Together they help establish what was supplied, when it was installed and which business was responsible.

2. Warranties and guarantees

Retain the warranty terms, registration confirmation and claim instructions. Record the expiry date and any servicing conditions that must be met to keep the cover valid.

3. Certificates and approvals

Depending on the work, relevant records may include electrical certificates, gas documentation, building-control completion information, planning decisions, window or roof guarantees and competent-person scheme certificates.

4. Product and installation details

Keep model numbers, serial numbers, manuals, paint colours, tile or flooring references and spare-part information. These small details become surprisingly valuable when matching or repairing something years later.

5. Photographs

Photographs taken before, during and after work can provide a useful visual history—particularly where pipes, wiring, insulation or structural elements are later concealed.

A simple filing structure

• Use one folder or digital section for each project.
• Record the contractor and completion date.
• Attach invoices, warranties, certificates and photographs.
• Add future servicing or inspection dates.
• Keep original official documents where required.