Solid Wall Insulation Guarantee Agency

Renewables and energy · Solid wall insulation guarantee organisation

The Solid Wall Insulation Guarantee Agency provides guarantee arrangements for eligible solid wall insulation systems installed by registered contractors. Contractor, system-holder and associate statuses are different.

Checked November 2026Official sources below.

What it covers and whether it is required

Membership is voluntary unless a contract or programme specifies it. Guarantee eligibility is tied to the approved system and installer arrangements, not every external or internal insulation project.

Joining requirements and costs

The membership route depends on whether the applicant is a system holder, installer or associate. Installers must work within SWIGA‘s quality framework and the relevant system arrangements. Confirm the assessment, insurance and technical conditions for the work rather than treating an associate membership as contractor approval.

Check the current fees with Solid Wall Insulation Guarantee Agency before applying. Ask whether the quotation includes application, assessment, renewal and any per-job charges. Use published fees or ask for a written quotation.

What it means for homeowners

Check the installer and system holder in the official member information and obtain the project guarantee. SWIGA says its guarantee is available only for work completed by registered installers using eligible system-holder systems. Read the terms before assuming a repair or unrelated defect is covered.

How to check a claim

Official member, card or certificate check: Solid Wall Insulation Guarantee Agency.

Match the record to the named person or contracting business. Check the current scope, not just a logo on a van or an old certificate. If the public record does not show the detail you need, ask the body to confirm it before appointing the business.

Where the scheme applies

UK solid wall insulation sector. Check the precise guarantee territory, system and property eligibility and any funding programme conditions.

Common questions

Can any SWIGA member issue the same installation guarantee?

No. Membership roles differ, and guarantee eligibility depends on the registered installer and system arrangements for the project.

How do I check Solid Wall Insulation Guarantee Agency status?

Use the official verification service linked in this guide. Match the person or legal business name, current status and relevant work category. For a guarantee, check the document issued for your contract as well.

Official sources

Sources checked November 2026. Scheme rules can change; confirm current requirements before applying or signing a contract.