Double Glazing and Conservatory Ombudsman Scheme

Windows and glazing · Glazing consumer protection and ombudsman scheme

The Double Glazing and Conservatory Ombudsman Scheme provides consumer protection arrangements for work by its member installers. It is separate from a Building Regulations self-certification scheme.

Checked November 2026Official sources below.

What it covers and whether it is required

Membership is voluntary. It does not replace FENSA, Certass or another appropriate building compliance route where one is needed. Protection applies under the scheme and policy terms for eligible registered contracts.

Joining requirements and costs

Installers apply through DGCOS‘s membership route and satisfy its vetting and accreditation requirements. Confirm the current financial, insurance, conduct and installation registration conditions rather than treating acceptance as automatic.

Check the current fees with Double Glazing and Conservatory Ombudsman Scheme 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

Use the official installer finder and obtain the protection paperwork for your contract. DGCOS describes payment protection, insurance-backed guarantees and dispute support. Confirm the limits and registration steps, especially if a conservatory or other work falls outside a separate glazing self-certification scheme.

How to check a claim

Official member, card or certificate check: Double Glazing and Conservatory Ombudsman Scheme.

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 home improvement market. Check the member’s service area and the territory and type of work covered by the relevant protection documents.

Common questions

Does DGCOS membership replace a FENSA or Certass certificate?

No. Consumer protection and Building Regulations compliance are different matters. Agree the required compliance route and obtain the separate protection documents.

How do I check Double Glazing and Conservatory Ombudsman Scheme 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.