How Much Do SIP Panels Cost? Complete UK Price Guide 2025

Planning a SIP panel project? Here's our transparent guide to pricing, with real-world examples and honest comparisons.

Quick Price Overview

Panel Type	Price per m²	Best For
72mm	£88.90	Storage buildings
97mm	£98.90	Workshops
122mm	£110.40	Offices, garden rooms (most popular)
142mm	£121.60	Extensions
172mm	£133.40	New builds, high-performance

Material Cost Breakdown

1. SIP Panels

Calculated by square metre based on your project dimensions.

2. PIR Splines

Connection materials: £6.90-£13.20 per metre.

3. Fixings & Screws

Budget £100-300 for most projects.

4. Delivery

Ranges £150-800 depending on order size and location.

Real-World Project Examples

Small Garden Room (3m × 3m)

• Material cost: £3,634
• Total DIY project: £9,134
• Professional build: £11,134-12,134
• Cost per m²: £1,015-1,348

Home Office (4m × 3m)

• Total project cost: £18,530
• Cost per m²: £1,544

Residential Extension (5m × 4m)

• Total project cost: £35,530
• Cost per m²: £1,777

How SIP Panels Compare

SIP panels cost slightly more than timber frame construction upfront but offer significant labour savings. Total costs are typically within 5-10% of timber frame, and often cheaper than masonry.

10 Ways to Reduce Costs

1. DIY installation (save £3,000-8,000)
2. Bulk ordering (5-10% discount)
3. Simple rectangular designs
4. Standard window sizing
5. Minimal customisation
6. Plan ahead to avoid rush delivery
7. Source your own windows
8. Do your own finishing work
9. Use our free drawing service
10. Compare quotes carefully

Hidden Costs to Budget For

1. Site access difficulties
2. Building control fees (£500-1,500)
3. Structural engineering reports
4. Groundworks and foundations
5. Planning application fees
6. Service connections (electric, water)
7. Waste disposal
8. Self-build insurance

Get Your Custom Quote

Send us your drawings for a detailed quote tailored to your specific project. We provide transparent pricing with no hidden costs.