U values as low
as 0.68 W/m2K
as 0.68 W/m2K
Nationwide fitting
or supply only
Passivhaus certified
insulated frame option
Part Q compliant and
Secured by Design options
Ideal for Passivhaus and ultra
low energy projects
FSC® certified Redwood or
Oak timber as standard
Oak timber as standard
Our ULTRA windows and doors are ideal for low energy and Passivhaus projects.
Our range offers a Passivhaus certified window option with insulated frame and low U values at a competitive price.
- U value as low as 0.68 W/m2K
- Dual compression seals
- Passivhaus certified window option with insulated frame
- FSC® certified redwood or oak timber
- Alu-clad option for inward-opening windows
- Part Q compliant and Secured by Design options
These windows and doors are available in the following styles:
Casement window
Tilt & turn window
Contemporary door