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50 years experience
Manufactured in Great Britain
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Insulated Garden Buildings

Create your own comfortable garden retreat, garden office or a hobby room with our insulated garden buildings. Fully insulated garden sheds allow you to enjoy your garden whole year round. Regardless of the weather seasons, our high performance insulation kits provide maximum insulation solution keeping your garden buildings cooler inside on summer and warm on winter days.  The multi-foil insulation creates double pockets of air each sides locking in the temperature.

Our multi-foil insulation is:

  • Non toxic and non irritant
  • CFG and HCFC Free
  • Requires no special clothing or equipment

The insulation kits contain:

  • Multi-foil insulation blanket
  • Staple gun
  • Knife and sealing tape
  • TG Timber boards and battens
  • Covers the whole building

Our insulation kit is  quick , easy to install and covers any building you desire. Our online videos will show you simple steps to follow for installation.
Buy only what you need, discover our huge range of insulated garden sheds now.

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  • Project Timber Evolution Apex Garden Room

    From £148.80 / month
    From£6,499
    Free delivery from Mon 24 Jun*
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  • Project Timber Evolution Long Window Pent Garden Room

    From £119.36 / month
    From£5,213
    Free delivery from Mon 24 Jun*
    View Product
  • The Project Timber Evolution Insulated Garden Room

    From £68.66 / month
    From£2,999
    Free delivery from Mon 24 Jun*
    View Product
  • The Project Timber Evolution Insulated Garden Room with Partition Wall

    From £88.72 / month
    From£3,875
    Free delivery from Mon 24 Jun*
    View Product
  • The Project Timber Evolution Offset Door Insulated Garden Room

    From £89.64 / month
    From£3,915
    Free delivery from Mon 24 Jun*
    View Product
  • Pressure Treated Traditional Windowed 2 Doors Grandmaster Workshop Shed

    From £38.72 / month
    From£1,691
    Free delivery from Mon 24 Jun*
    View Product
  • Pressure Treated Traditional Windowed Grandmaster Insulated Workshop Shed

    From £83.25 / month
    From£3,636
    Free delivery from Fri 5 Jul*
    View Product
  • Pressure Treated Traditional Windowless Insulated Grandmaster Workshop Shed

    From £63.54 / month
    From£2,775
    Free delivery from Mon 24 Jun*
    View Product
  • Diplomat Grandmaster Insulated Garden Room

    From £73.22 / month
    From£3,198
    Free delivery from Fri 5 Jul*
    View Product
  • Traditional Windowed Insulated Grandmaster Workshop Shed

    From £70.70 / month
    From£3,088
    Free delivery from Fri 5 Jul*
    View Product
  • Traditional Windowed Apex Insulated Grandmaster Workshop Shed

    From £75.28 / month
    From£3,288
    Free delivery from Fri 5 Jul*
    View Product
  • Traditional Windowless Grandmaster Insulated Workshop Shed

    From £60.40 / month
    From£2,638
    Free delivery from Fri 5 Jul*
    View Product
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