At SIP Kits UK, we design, manufacture and supply high-performance SIP buildings throughout London and the surrounding areas. Whether you are looking for a fully insulated garden room, home office, self-build SIP kit, glamping pod, leisure building, classroom facility or commercial modular building, our range provides a practical, energy-efficient and cost-effective solution.

Manufactured in the UK using advanced Structural Insulated Panel (SIP) technology, our buildings offer exceptional insulation, strength and long-term durability. Available as self-build kits, shell packages or fully finished buildings, we supply customers throughout Greater London including Central London, Westminster, Camden, Kensington, Chelsea, Islington, Greenwich, Richmond, Croydon, Barnet, Bromley, Hillingdon, Kingston upon Thames, Wandsworth and surrounding boroughs.
Create valuable additional living space without the cost and disruption of a traditional extension. Our garden rooms are ideal for:
Fully insulated and designed for year-round use, our garden rooms are a popular choice for London homeowners looking to maximise outdoor space.
With remote and hybrid working becoming increasingly common, a dedicated garden office provides a quiet and productive workspace away from household distractions.
Benefits include:
Our self-build SIP kits are ideal for homeowners, developers and contractors throughout London.
Suitable for:
Each kit is precision manufactured and supplied with detailed assembly instructions.
Although London itself is urban, many hospitality operators, landowners and developers invest in glamping and leisure accommodation projects on the outskirts of the capital and surrounding regions.
Our range includes:
Property prices in London are among the highest in the UK. A SIP garden room provides a cost-effective way to create additional space without extending your main property.
Our SIP panels deliver outstanding insulation, helping keep buildings warm in winter and comfortable during summer.
The energy efficiency of SIP construction helps lower heating and cooling costs throughout the year.
Unlike traditional construction projects, SIP buildings can often be installed within days rather than months.
Despite being lightweight, SIP structures provide excellent structural strength and longevity.
SIPs create less waste during construction and offer long-term energy savings, making them an environmentally responsible choice.
Choose from:
We supply customers throughout Wales and across the UK.
Our experienced team can guide you through every stage of your project, from initial design through to installation.
Need something unique? We can create custom SIP buildings tailored to your requirements.

Yes. We supply garden rooms, garden offices, SIP kits, glamping pods and modular buildings throughout Greater London.
Absolutely. SIP buildings are ideal for urban environments due to their compact footprints, fast installation and excellent insulation.
Yes. Many of our customers choose SIP garden rooms specifically for home working, creating a quiet and productive workspace separate from the main house.
Many garden rooms fall within permitted development rights, although this can vary depending on location, size and intended use. We recommend checking with your local authority.
Yes. SIP construction offers excellent thermal performance, helping reduce heating and cooling costs.
Yes. We supply self-build SIP kits throughout London complete with detailed assembly instructions.
When correctly installed and maintained, SIP buildings can last for many decades and perform similarly to traditional buildings.
Yes. We can design and manufacture bespoke buildings to meet your exact requirements.
Whether you are looking for a garden room in Richmond, a garden office in Croydon, a SIP kit in Barnet or a modular commercial building anywhere in Greater London, SIP Kits UK can help.
Call 01254 947673 today or contact our team for expert advice and a free, no-obligation quotation.