RD SIPs is a modern, family-run supplier of certified Structural Insulated Panels (SIPs) based in Hereford, UK. We supply SIP panels and complete SIP kits for garden rooms, house extensions, annexes and new build homes across the UK.
We started RD SIPs for a simple reason: too many SIP suppliers either focus only on large commercial jobs (and aren’t interested in smaller projects), or they can be expensive and hard to deal with. We built RD SIPs to bridge that gap, making high-performance SIP building accessible for homeowners, self-builders and trade customers.
We design and supply SIP panels and kits that help you build faster, with excellent thermal performance and reliable, certified quality.
Our typical supply includes:
Floor, wall and roof SIP panels
Full SIP kits for projects of different sizes
Technical guidance during design and planning
Clear lead times and delivery coordination
We supply certified SIP panels and operate with professional standards and traceability. Our certifications and memberships include:
Structural Timber Association (STA)
CATG: SIP Mark Systems
ISO 9001
STA Assure Silver
Made in Britain
FSB Member
Our PUR-bonded SIP panels are built for thermal efficiency and consistency. For example, a 147mm panel can achieve a U-value of 0.18 (UK building regs compliant).
We’re upfront about timelines and keep things moving:
Panels in stock: delivery typically within 5 days
Special orders: typically around 2 weeks
Kits: typically 2–4 weeks
House projects: typically 4–8 weeks
SIPs are a brilliant building method, but they’re different to traditional construction. We help you get it right, with practical guidance and responsive communication.
We can support with:
Reviewing drawings and advising on build-ups
Helping you avoid common SIP installation mistakes
Guidance on openings, roof types and detailing
Advice on access, delivery and site planning
We support projects of all sizes, including:
Garden studios and garden rooms
Extensions (including large openings for bifold doors)
Annexes and holiday lodges
Full new build homes (including complex designs)
We work with:
Homeowners and self-builders
Builders and construction companies
Architects and designers
When you buy from RD SIPs, you get:
Certified SIP panels and kits
Straight answers and clear communication
Honest lead times and dependable delivery
A supplier that treats your project like it matters
If you have drawings, send them over and we’ll put together a clear quote. If you’re early stage, tell us what you’re building and where, and we’ll point you in the right direction.
Call to action ideas (choose one):
Request a quote
Download our info pack
Talk to us about your project