The Versatility of Sip Extensions

SIP Panels, through their strength and ease of connection, offer more versatility than other construction materials, allowing possibilities beyond the conventional; such as sloping roof panels creating an open space that when utilised, properly maximises space and provides an insulated room that will stay warm in winter, and nice and cool in summer.

See also our sister site dedicated to SIP extension kits.

SIPs are 3 times stronger than brick built, and 7 times stronger than timber framed buildings.

You can also choose the exterior look you want.  Brick slips tend to be the most used, but cladding is also very popular and there is a selection of colours and styles to choose from. Or if you prefer to render the outside this can be painted in a range of colours.

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What can you build with SIPs?

What products can you build from SIP panels....


We can build quite a large selection of items with these SIP construction panels.

  • Lean-to extensions are ideal for replacing conservatories or for restricted space.
  • full ground floor extension
  • garage conversion
  • annexe
  • washroom
  • wet room
  • single storey living quarters
  • plus more besides… please feel free to get in touch with any questions you have.

Or if you are after a stand-alone product that is an extension of your property why not take a look at our garden rooms page for our selection of pods and garden rooms?

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What is a SIP panel?

SIP - Structurally Insulated Panel

SIPs or Structurally Insulated Panels consist of two outer layers of Oriented Strand Board (OSB) sandwiched around a polyurethane (PU) foam core.

Each panel is durable, lightweight and extremely strong. SIPs are extremely well insulated and airtight, resulting in a structure that requires less energy to heat and one that provides better air quality for the user.

SIP panels have been used in the USA, Canada, Japan and Europe since the 1950s where they have become a mainstream building material for constructing homes. Now, SIPs are becoming increasingly popular here in the UK.

Sip panels are a structurally sound framed system. There’s no risk of compression shrinkage or cold bridging that is normally associated with stud walls and other traditional methods.

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The Manufacturing Process

Highly engineered panel manufacture

Constructed under controlled conditions at our factory, our SIP panels have a high strength-to-weight ratio allowing large sections of your construction to be fitted at once, speeding up the time required on site.

These Structurally Insulated Panels (SIPs) are connected with a unique jointing system for walls and roofs.

SIPs are fabricated using timber from sustainable sources, they use less timber than typical timber frames and are one of the most economical and eco-friendly forms of construction.

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Finishing Touches

Complete the look of your construction with some brick cladding or render

Once the SIP frame structure is in place, you can choose from a variety of coverings. We can source and supply a wide range of colors in cladding and brick slips, as well as render for your walls. The choice is yours.

Many of our customers choose to have their garden rooms, pods, etc. fully prepared.

Please contact us if you would like to know more about how we can help you design a truly special addition for your home.

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Home Extensions in a kitReplacement conservatory roof logoGarden Room, home office, home gym, Kits