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Access panels designed to overcome more complex requirements.

 Insulated Gas Meter Box Access Panel

External Gas Meter Box

Designed for use with built-in gas meter boxes

  • Premium quality External Wall Insulation meter box, insulated and air sealed designed for use with external insulation
  • Unique design Patent Application No. 2216692.0
  • Designed and made in the UK
  • Calculated U Value 0.30 W/m2K
  • fRsi of 0.87* which meets the requirements of PAS2035 (*calculated based on brick construction)
  • Fire retardant
  • Bespoke sizes and RAL colours available
  • Meets ventilation requirements of BS8499
  • Fits over the existing gas meter housing


Designed to provide ventilation in the event of a gas leak while maintaing insulation and draught proofing under normal conditions. The product fits over the existing gas meter box with EWI being applied up to and around the outer edges. This saves a huge amount of time, cost and inconvenience by not having to move the existing gas meter.

Every aspect of design has been considered towards taking the hassle out of dealing with gas meter boxes when retrofitting EWI. The product is delivered ready to fit as a fully insulated, ready finished unit.

Insulation The outer frame and door are packed with mineral wool insulation. Insulation is fitted during manufacturing and is packed to ensure there are no voids which could cause potential cold spots. This helps maintain consistency and assures concerns relating to the performance gap are addressed at the point of manufacturing.

Ventilation Two gravity vents are fitted to the door, positioned at the top and bottom. Under normal conditions these remain closed the unique shape of the vent prevent it from blowing open from outside. In the event of a gas leak the vents will open and prevent any build up of gas. The size of the vents meets with the requirements of BS8499. Independent testing has been conducted to show that the vents react to positive pressures as low as 1 Pa.

Construction The gas meter box is fabricated from Zintec steel which is primed and then powder-coated. The door can be hinged on either side and is easily removable to aid fitting.

The door is secured by twin tri-drive locks which are located at the top and bottom of the door to ensure even compression against the door seal. The door is fitted with an opening handle for convenience and is secured by a safety wire and clip to prevent the over extending when opening. The door cill is gently profiled so in the event of water being driven into the small gap between the frame and the door it will drain away from the meter box.

Finish Gas meter boxes are supplied powder-coated and need no onsite decoration. The standard finish is white RAL9016. Other Classic RAL colours are available.

Guarantee Standard guarantee against defects - 2 years from the date of delivery

Ordering - Available from April 2024 Please note: This product will be made to order with production priority being given to existing customers.

Please supply the following information:

1) The height and width of the existing meter box (measured from outside edge to outside edge of the existing gas meter box)
2) The depth of the finished external wall insulation build up. Please note, we recommend the meterbox is 10mm to 25mm deeper to allow application of weather sealant.
3) Hinge side - Advise if the product is to be hinged on the right side or the left side when viewed from the front

Please note: This is a bespoke made product.

   Code Fixing Height Width Depth


Technical Drawings

See Document Downloads Below:



3D Model

3D Contols
3D Contols


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Installation Guide

Please note: This product can be made to custom sizes, colours and fixing details - please contact us for a quotation. When ordering ensure the meterbox is 10mm to 25mm deeper than the finished external wall insulation build up. Minimum internal 300mm width.





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