ULTRA triple glazed timber windows and doors - Green Building Store Green Building Store


ULTRA triple glazed timber windows and doors at low energy selfbuild project Yorkshire

U values as low
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

ULTRA triple glazed timber window and oak entrance door at low energy selfbuild project Yorkshire

FSC® certified Redwood or
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.

Our ULTRA windows and doors are available in the following styles:

Casement window

PERFORMANCE outward opening casement window

Tilt & turn window

PERFORMANCE inward opening triple glazed window

Contemporary door

BL05 ULTRA Contemporary

Entrance door

Featured Image: Green Building Store ULTRA triple glazed timber door

Sliding doors

Green Building Store PERFORMANCE triple glazed timber Lift and Slide door

Bi-fold doors

Triple Glazed timber bifold door at Four walls retrofit

French doors

PERFORMANCE French Doors at Arts and Crafts style house

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