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® Redwood or
Oak timber as standard
Oak timber as standard
Our ULTRA windows and doors are ideal for low energy and Passivhaus projects.
The ULTRA range offers a Passivhaus certified window option with insulated frame and low U values at a competitive price. Available in FSC® timber in either redwood or oak as standard.
- U value as low as 0.68 W/m2K
- Passivhaus certified window option with insulated frame
- FSC® timber
- Part Q compliant and Secured by Design options
Our ULTRA windows and doors are available in the following styles:
Casement window
Tilt & turn window
Entrance door
Contemporary door
French doors
Sliding doors
Bi-fold doors
