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  • Windows & Doors

    • Standard size windows to buy online

    • Rationel PATUS +

    • Passive House

    • Rationel AURAplus
    • Rationel AURA

    • Triple Glazed Windows & Doors

    • Rationel AURA

    • Double Glazed Windows & Doors

    • Rationel PATUS
    • Rationel DOMUS

    • Aluminium Clad

    • Rationel PATUSplus
    • Rationel ALDUS
    • Rationel AURAplus

    • Sun Rooms

    • Solarlux Sun Rooms & Folding Doors

    • Window Accessories

    • Window Accessories
  • Sunpipes & Skylights

    • Roof Types

    • Pitched Roof Applications
    • Vaulted Roof Applications
    • Flat Roof Applications
    • Square Sunpipes

    • Products

    • Light Tunnel Sunpipes
    • Additional Components
    • Suncatcher

    • Sky Lights

      • Roof Windows

      • Centre Pivot
      • High Pivot
      • Top Hung and Centre Pivot
      • Combinations
      • Roof Access Windows

      • Flashings

      • Standard
      • Special

      • Skylight Accessories

      • Control Accessories
      • Roofing Membrane
      • Blinds & Shutters
  • Building Materials

    • Bricks, Blocks & Ancillaries

    • Durisol - Recycled Blocks
    • Enviroblock - Recycled
    • Thermoplan - Clay Blocks
    • Oak Stakes

    • Lime & Mortars

    • Natural Hydraulic Lime (NHL)
    • Eminent Lime Mortars and Plasters
    • Insulating Lime Plasters & Renders
    • Lime Render
    • Lime Putty
    • Lime Putty Plaster
    • Lime Putty Mortars
    • Lime Wash
    • Lime Ancillary Products

    • Roofing Materials

    • Ecomerchant Eco Slate
    • Insulated Loft Hatch
    • Roofing Membranes
    • Steico Flex (Wood Fibre Insulation)
    • Steico Special Insulating Roof Board
    • Steico Therm Internal Insulation Board
    • Steico Universal Sarking Board

    • Membranes & Tapes

    • Roofing Membranes
    • Internal Membranes
    • Wall Membranes
    • Air Tight Tapes
    • Service Grommets
    • Compression Tapes

    • Sheet Materials

    • Panel Vent
    • Wood Wool Slabs

    • Books

    • Books
  • Renewables & Energy

    • Biomass & Wood Burners

    • Biomass & Wood Burners
    • Thermal Store, Cylinders and Tanks

    • Energy Generation

    • Anaerobic Digestion
    • Solar Thermal - Solar Water
    • Ground Source Heat Pumps
    • Air Source Heat Pumps

    • District Heating Pipe

    • Rauvitherm
    • Rauthermex
    • Everloc™ Universal Pipe Fittings

    • PV

    • PV KIts
    • Solar Farms
    • Installers, Why Buy From Us?
    • PV Survey Form
    • PV Finance
    • Antaris Solar - German PV systems

    • PV Electrical Items

    • PV Electrical Items

    • SMA Inverters

    • SMA SunnyBoy Inverters
  • Drainage & Water

    • Lindab Steel Guttering

    • Lindab Gutter Tech Page
    • 100mm Gutters (galv)
    • 100mm Gutters (coated)
    • 125mm Gutters (galv)
    • 125mm Gutters (coated)
    • 150mm Gutters (galv)
    • 150mm Gutters (coated)
    • 75mm Downpipes (galv)
    • 75mm Downpipes (coated)
    • 87mm Downpipes (galv)
    • 87mm Downpipes (coated)
    • 100mm Downpipes (galv)
    • 100mm Downpipes (coated)

    • Cast Iron Guttering

    • Classical Guttering
    • Classical Downpipes

    • Rainwater Harvesting

    • Conder Rainwater Harvesting System

    • Stormwater Management

    • Water Storage Crates

    • Process and Storage Tanks

    • Sewage Treatment Plants
    • Drainwave
  • Insulation

    • Sheeps Wool (Batts & Rolls)

    • Black Mountain Sheeps Wool Rolls
    • Thermafleece Sheeps Wool EcoRoll (Rolls)
    • Insumate Insulation Support
    • Insulated Loft Hatch
    • Steico Top Loft Insulating Board

    • Plant Fibre

    • Warmcel (Recycled Paper)
    • Black Mountain Hemp Batts
    • Steico Flex (Wood Fibre)
    • Steico Canaflex (Hemp)
    • Steico Top Loft Insulating Board
    • Insumate Insulation Support
    • Insulated Loft Hatch

    • Acoustic Matting / Underlay

    • Regupol 4515 Acoustic Underlay

    • Wood Fibre (Rigid Board)

    • Steico Special Wall & Roof Sheathing Boards
    • Steico Therm Internal Insulation Board
    • Steico Universal Sarking Board
    • Steico Top Loft Insulation Boards
    • Isolair
    • Pavatherm
    • Pavatherm Plus

    • External Walling Render Boards

    • Steico Protect
    • Diffutherm
    • Diffutherm (Masonry)
    • Diffutherm (Timber)
  • Landscaping

    • Biodegradable Matting

    • Coir Matting
    • Jute Matting
    • Fixings

    • Membranes

    • Non Woven Geotextiles
    • Woven Geotextiles
    • Root & Weed Barriers

    • Grass Reinforcement

    • Grass Pavers
    • Grass Protection
    • Root Protection

    • Green Roofing & Walling

    • Green ‘living’ roofing
    • Green ‘living’ walls
  • Maintenance & Cleaning

    • Maintenance & Cleaning

    • Bottled Cleaning Products
    • Sachet Cleaning Products
    • Biological Toilet Cistern Blocks
    • Kitchen Composters
    • Grease Buster and Drain Cleaner
    • Timber Preservatives
    • Septic Tank Treatment
    • Pond Maintenance

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      • Windows & Doors

        • Standard size windows to buy online
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        • Building Materials

          • Bricks, Blocks & Ancillaries
          • Lime & Mortars
          • Roofing Materials
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        • Renewables & Energy

          • Biomass & Wood Burners
          • Energy Generation
          • District Heating Pipe
          • PV
          • more ...

        • Drainage & Water

          • Lindab Steel Guttering
          • Cast Iron Guttering
          • Rainwater Harvesting
          • Stormwater Management
          • more ...

        • Insulation

          • Sheeps Wool (Batts & Rolls)
          • Plant Fibre
          • Acoustic Matting / Underlay
          • Wood Fibre (Rigid Board)
          • more ...

        • Landscaping

          • Biodegradable Matting
          • Membranes
          • Grass Reinforcement
          • Green Roofing & Walling

        • Maintenance & Cleaning

          • Maintenance & Cleaning

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        payment options accredited ISO14001 accredited

        Registered Office: Eco Design & Installation Limited (trading as Ecomerchant), National Self Build & Renovation Centre, Lydiard Fields, Great Western Way, Swindon, SN5 8UB

        Telephone: Head office - 0845 603 5688 (or +44 845 603 5688 from outside the UK). Our office hours are 9am - 5pm Monday to Friday

        Registered in England. Company No. 03593372

        All prices listed exclude V.A.T.