double glazed PVCu windows
Install Ecoseal A Rated, energy efficient double glazed PVCu windows and save on your heating bills
PVCu and composite doors
Add style and security with Ecoseal's wide range of double glazed PVCu and composite doors
PVCu conservatory or orangery
Add space and style to your home with an Ecoseal individually designed double glazed PVCu conservatory or orangery
Ecoseal's PVCu fascias
Ecoseal's PVCu fascias, soffits and gutter mean no more painting and decorating



fensa logo

Ecoseal is a registered member of FENSA (the Fenestration Self-Assessment Scheme) and so is entrusted to make sure that your window and door installation satisfies all current Building Regulations in respect of their installation.

History of FENSA
Until 2002 replacement glazing in existing properties was outside the control of building regulations even though glazing in new properties was subject to Building Control requirements. Given that there are approximately two million glazing installations in existing properties every year, local Building Control departments would not have coped with the volume of work involved in ensuring compliance with the regulations.

FENSA was formed therefore, under the auspices of the Glass and Glazing Federation (GGF) to register installers of double glazed windows and doors and to monitor their compliance with building regulations. Although member companies self-assess their own compliance with building regulations, FENSA checks a number of installations to confirm this.

Advantages of FENSA over a Building Regulations Application

  • Customer and trade references, in addition to financial checks are made by FENSA
  • All relevant installations must carry a five to ten year insurance backed guarantee and deposit protection insurance.
  • FENSA registered companies are continually re-assessed by an independent inspection body.
  • Using FENSA is less expensive than using the local Building Control Department.

What is checked under FENSA rules?

  • Structure of the windows and doors - especially in relation to bay windows and the installation of supporting lintels.
  • Fire Escapes – with regard to upstairs windows.
  • Ventilation – Habitable rooms should have a total window opening of more than 5% of the room’s floor area together with trickle ventilation where necessary.
  • Access for the disabled – If an existing door permits wheelchair access, the replacement door must also provide such access.
  • Safety – In relation to glazing of windows and doors, safety glass (toughened or laminated) must be installed at low levels (up to 800 mm for windows, 1,500 mm for doors) and over showers or baths.
  • Conservation of fuel and power – Since 1st October 2010, Window Energy Ratings (WER) on a scale of A to G (similar to those applied to household appliances, with A being the most efficient and G the least efficient) apply to replacement windows and doors. All replacement windows and doors must achieve at least the C rating.

Ecoseal’s premier casement window is A rated as standard.

We use cookies on our website so that we can improve our website.
Read more.

Happy to
click to accept cookies