Guardian Warm Roof extension Interior view, Guardian Home Extension Installer Northamptonshire

Guardian Home Extension

Home, House & Building Extension UK

Transform your home with a Next Generation Guardian House Extension UK using the most advanced, energy-efficient building system available, to create a comfortable and affordable living space. Guardian home extensions are fabricated off site and then delivered and erected within two to three weeks, avoiding the chaos and upheaval of having builders on site for months on end.


The Guardian home extension provides a spacious, open-plan extension to your home using cutting edge construction techniques. Your new extension will be comfortable and warm with outstanding energy-efficiency with a U-value of 0.10 W/m2K, it is the most energy saving home extension available.


Being of modular construction, Guardian home extensions come with insulated roof and walls, double-glazed windows and strong, steel-reinforced structures, and are an affordable alternative to a traditional brick-built structures. We can match your existing brick, render or stone walls as well as the roof tiles, so the completed room matches the rest of your house. 

Book a Free Guardian Home Extension Estimate

We do not employ cold-calling salesman so you will never feel pressurised. 


Following a detailed discussion and measuring of your property, we will be able to offer expert help & advice in making your ideas become a reality. 


We will then send you a detailed quote based on our visit. 

Guardian Home Extension

Guardian Warm Roof extension Interior view, Guardian Home Extension Installer Northamptonshire

  • Ridge Cappings to match roof tiles or slates
  • Choice of roof tiles or slates
  • Standard rainwater systems
  • Breathable Guardian waterproof membrane
  • Exterior grade plywood
  • Structural pre-engineered frame
  • Ventilated roof eliminates condensation
  • 3 layers of high performance rigid Kingspan insulation board (125mm) U-value 0.18 W/m.K (England & Wales) and 0.15 W/m.K (Scotland)
  • Choice of external finishes
  • Kingspan TEK Building System
  • Internal flooring
  • External flooring
  • Velux Roof Windows (Extensive Range)
  • Guardian Home House Extension UK

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Guardian home extensions are individually tailored house extension uk to suit all your requirements. By combining the Kingspan Guardian Warm Roof System, you can truly revitalize your home, creating a beautiful, elegant working, relaxing or entertaining space. Check out this great video for some of its highlights. Contact us today for a free Guardian House extension survey.