SIPS Home Extension
Trade House Extensions Kits…
Our SIPS House Extension, built using the SIPS Panel Building Systems, is factory-built for consistently high quality and offers huge financial and performance advantages over conventional house extensions.
All components are pre-assembled factory-engineered with high-performance insulation. These superior build methods provide up to 60% faster on-site construction resulting in up to 30% cost savings with superior quality over conventional on-site construction.

SIPS House Extensions

Kits for House Extensions
Delivered From Our Factory…
We supply the following in a SIPs Kit:
- 142mm Kingspan SIP panels
- C24 Lintels
- C24 Splines, End Timbers & Posts
- C24 Treated Soleplate
- Exterior Membrane & 25x38mm Treated Battens
- Assembly Fixing Kit Drawings (GAs for sign-off, production & assembly drawings)
You will need to/supply yourself:
- Foundations & DPC
- Windows & Doors
- Internal & External finishes, i.e. battens, render, cedar cladding, weather boarding, brick finish, or composite board
- Electrics and plumbing
- Anything else

Trade Ordering
GREEN LID Fabrication supply Team Guardian with SIPS House Extensions:
Contact your Guardian Warm Roof Fabricator and request a project-specific quotation from them for a SIPS Home Extension.
Installation and training service:
GREEN LID Fabrication provides an optional specialist contractor installation and toolbox training service. We can deliver and install the SIPS Panel Building System onto your prepared foundations. Once our team is done, your installers can commence with the rest of the project and they will have the skills required to install SIPS Panel Building Systems confidently and independently in the future.
Request a quote or contact our team to discuss your project
The GREEN LID House Extensions
We aim to provide a shape and style to suit every requirement, if you can’t see what you’re looking for then don’t hesitate to contact our trade support team.
PINE
Width: 4000mm
Projection: 3000mm
Eaves: 2400mm

CHERRY
Width: 5000mm
Projection: 4000mm
Eaves: 2400mm

ASPEN
Width: 5000mm
Projection: 4000mm
Eaves: 2400mm

HOLLY
Width: 7000mm
Projection: 6000mm
Eaves: 2400mm

DOUGLAS
Width: 7000mm
Projection: 6000mm
Eaves: 2400mm

CHESTNUT
Width: 8000mm
Projection: 4000mm
Eaves: 2400mm

HAZEL
Width: 9000mm
Projection: 6000mm
Eaves: 2400mm

ALDER
Width: 3500mm
Projection: 4000mm
Eaves: 2400mm

DOWNEY
Width: 3000mm
Projection: 4000mm
Eaves: 2400mm

BLACKTHORN
Width: 4000mm
Projection: 3000mm
Eaves: 2400mm

CEDAR
Width: 8000mm
Projection: 4000mm
Eaves: 2400mm

BEECH
Width: 6000mm
Projection: 3000mm
Eaves: 2400mm

ASH
Width: 8000mm
Projection: 2000mm
Eaves: 2400mm

ELDER
Width: 6000mm
Projection: 3000mm
Eaves: 2400mm

BOX
Width: 4000mm
Projection: 4000mm
Eaves: 2400mm

WILLOW
Width: 6000mm
Projection: 3000mm
Eaves: 2400mm

MAPLE
Width: 8000mm
Projection: 3000mm
Eaves: 2400mm

ELM
Width: 7000mm
Projection: 3000mm
Eaves: 2400mm
