UltraSIPs
UK SIP panel manufacturer & kit supplier
SIP Panels
Celotex (Sopratherm) core + Sterling OSB3
High-performance structural insulated panels ready for extensions, self-builds, and commercial projects.
We support every project
- • Extensions and self-builds
- • Garden rooms and bespoke footprints
- • Education, commercial, and modular spaces
- • Engineering, drawings, delivery, and install support
Inside UltraSIPs
See how we build and deliver
Watch the same feature video from our homepage—how we engineer, manufacture, and deliver SIP kits with predictable lead times and airtight performance.
Design your build
Configure your own SIP kit
Choose footprints, openings, and components, then export a kit list to share with the team. We will price, manufacture, and confirm any custom cutting where agreed.
Why Choose UltraSIPs
Swift Construction
Our SIP panels enable up to 50% faster construction compared to traditional building methods.
Energy Efficiency
A continuous Celotex or IKO PIR core and airtight panel joints give low U-values, lower heating bills and an easier route to Part L.
UK-Made & Labelled
Panels made in the UK with Sterling OSB3 faces and QR-labelled panel schedules, with delivery quoted up front — not vague estimates.
Bring your vision to life
From initial sketch to finished build
We support every project type—self-builds, extensions, garden rooms, education, and commercial. Share your drawings and we’ll engineer, manufacture, and deliver a labelled kit with install support.
Self-builds & extensions
Tight U-values, labelled kits, and drawings that keep inspectors happy.
Garden rooms
Standard and bespoke footprints with splines, fixings, and trims ready to install.
Commercial & education
Scaleable SIP solutions for classrooms, pavilions, and modular builds.
What to expect
- • Engineered drawings and labelled panels
- • U-value calcs and Part L compliance support
- • Delivery dates you can plan around (5-10 working days)
- • WhatsApp/phone support during install
Need a custom footprint?
Send your sketch or DWG and we'll price the SIP package and confirm any custom cutting where agreed.
