Ready to become part of our family?

We supply garden room install companies across the UK and provide a turnkey SIP kit design and material procurement service. We understand the stress that is caused when your team is on site and things go wrong such as missing parts or suppliers that let you down with critical components.

We have vast experience designing and providing kits that arrive in the right place at the right time with everything needed to get the job done on time.

We provide you with a dedicated account manager who will keep you updated from design through to delivery to site.

Garden Room SIP Kit Manufacturer in UK

Reasons to partner with Outerspace


We manufacture and supply SIP panel building kits for the trade. Our mission is to help ensure your install teams have everything they need in the right place at the right time and manufactured to the very highest standard.

Building Kits

We offer a range of standardised building kits at very competitive prices, however we do also offer a highly bespoke design and supply service when needed.

Faster Build Speed

SIP building kits are typically 50% faster than alternative building methods meaning you can complete more projects every month and increase your profits.

Experienced Installers

If you are new to SIPs we can introduce you to an experienced installer to help you construct your first SIP building kit.

3D Mockups

We have a 3D photo realistic design service available to help you convert more sales.

Show Buildings

We have show buildings available for your clients to view.

Marketing Support

Through our digital agency Outerspace Creative Ltd we can support your sales activity & marketing.

Commercial Relationship

We offer a high value product, outstanding support and exceptional service.

Trade Portal

Introducing the Trade Portal

Not only do trade partners enjoy all the benefits of being a part of the Outerspace family, but partners also have access to their very own Trade Portal, allowing them to easily order building kits when required.

Benefits of our Trade Portal include:

  • Easily order our building kit range
  • Re-order past buildings
  • Access our SIP kit instruction packs
  • And so much more
Customer Testimonial

Customer Testimonial

As a long established garden room company that has been selling and installing garden rooms for over 8 years, we only wish we had found the time to investigate SIPs much sooner than we did.

Although aware of SIPs for some time we didn’t fully understand the benefits and also avoided having to introduce a completely new build method to our install teams. Our teams have spent years perfecting what we thought to be the most efficient building method for garden room construction.

Although initially uncomfortable with the suggested move to SIPs, our installers were surprisingly engaged and very quickly adapted to what they saw as a more efficient way of working. As a company, we are now able to complete almost twice as many buildings every month with the same number of installers as we could previously, and our customers are now benefiting from a structure which I am reluctant to admit as being a far more premium end product.

The Outerspace team has integrated into our business and essentially provided us with an offsite department that looks after our design requirements, procurement, and SIP kit production. It has allowed us to spend more time working on our business rather than getting consumed in multiple procurement communications.

Robert Jones.

Further support with Outerspace Creative Limited

To add further support we offer the services of our sister company Outerspace Creative to
support our customers where needed with sales and marketing support that ranges from
branding to website development and social media support.

Outerspace Creative


Highlight your beliefs with visual elements that contribute to your brand identity and what your company stands for.

Brand Freshen-Up

Neaten up your brand with a clean and fresh overview of your current branding. Bring it up to date with a makeover.

CGI Production

Virtual images that make an impact. From still images to video walk-throughs, our stunning CGI mockups bring developments to life.

Digital Marketing

From inbound marketing to social media campaigns and email marketing, well-executed digital marketing enables your brand to speak directly to your audience.

Print Design

Convey information through tangable printed materials as an alternative to or in combination with digital assets.

Website Design & Build

Develop your websites’ full potential to make it visually appealing, focusing on thoughtfull user interface design and more.

Apply to become a Trade Partner