Build it faster, stronger, warmer and smarter


We have made available some useful information on building with SIP Panels including technical data and installation guides to help clients, architects and builders.

Welcome to Extension Kitz

An introduction to Extension Kitz.

SIP walls installation guide

A PDF installation guide for SIP walls.

Render – ‘U’ Value and Condensation Report

Brick Slip – ‘U’ Value and Condensation Report

Extension Kitz Case Studies

A section of completed projects.