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Goldseal DGCOS

Independent Certification

By law, all installations of windows and doors in dwellings need to be registered with Local Authority Building Control (LABC). Most installers do this by registering with a government approved competent person scheme such as Assure, Certass or FENSA. These competent person schemes simply allow the installer to demonstrate that the installation meets the legal minimum requirements for your installation. However, there are other aspects to window and door installation that are important, for example, how an installer communicates with their customers, whether they have processes to progress orders efficiently, and how they look after your home whilst the installation is taking place.

To demonstrate the quality of our installations, Goldseal have joined the Bluesky Certification scheme for the installation of external windows, doors, conservatories and orangeries.

This scheme is voluntary and includes regular independent audits of our office processes and procedures, the training and competence of key staff, the procedures we use for installation and the workmanship on site. The certification also checks how we look after the property during installation.

Choosing an installer who is a member of the Bluesky Certification scheme means that you can have confidence that the company has been independently verified. More details of the Bluesky scheme can be found at

At Goldseal all our staff from office to surveyors and fitters are fully qualified and trained to carry out their work to the highest standard and inspected by Bluesky. To book your exclusive appointment to come in and see us at our showroom in Townsend Piece click here

Contact Us

Free Survey

We offer a free survey and no obligation quote for all contracts.

Quality Builds

All jobs are built using the finest quality materials and are fully project managed.


Goldseal offers a 10-year insurance backed gaurantee on all projects.


Take the worry out of planning. Goldseal can arrange this for you, if you wish.


George Clarke meets DGCOS Member from DGCOS Ombudsman Scheme on Vimeo.


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