Manhole Accessories

Manhole Accessories - Quality products for drainage systems

Joint Sealants

AG concrete manhole accessories can be jointed quickly and easily using extruded butyl rubber sealants. Butyl rubber has an excellent reputation for longevity and offers many advantages over oil mastic type sealants, providing flexibility and cost savings.

  • Produces seal without squeeze-out, reducing the volume of sealant required.
  • Forms an immediate seal.
  • Low temperature flexibility.
  • Resistant to hardening after aging.
  • Permanent flexibility.
  • Various sizes to suit needs.
  • Tokstrip and primer are also available.
Manhole Accessories in situ

Manhole Steps

A system that offers the contractor the advantages of a durable plastic encapsulated rung.

All AG manhole rings are supplied with eyelets to enable single fixing of either single or double steps on site.

They can be quickly and easily installed by semi-skilled labour.
There are fewer joints which reduce the likelihood of infiltration.
All concrete manhole units can be ordered from one source.
There is a reduced risk of on-site damage and pilferage.

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Manholes with Ladders

A flexible, convenient solution.

A system that offers the contractor the advantages of a durable plastic encapsulated ladder without the need to specify an exact length or fit for each individual manhole. They’re quick and easy to insert, providing savings in labour costs.

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Covers and Frames

AG supply ductile iron manhole covers / manhole access covers for a variety of manhole base sizes.

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Contact us for specification assistance and to check availability.


Joint Sealants

Sealant size
(tongue +
grooved joint)
Unit nom. size
Sealant length
(per joint) 
5 litres / 50m

Manholes with Ladders

Manhole diameter
1050 – 1350mm
Manhole diameter
1500 – 3000mm
Section lengthRung spacingSection lengthRung spacing
Distance from
wall unit
Plastic cover

Covers + Frames

BS RefClear openingBase sizeDepthWeight
Ductile iron / medium / Grade B single piece circular opening / black / bitumen coatedMA60600×600760×76010095
Ductile iron / medium / Grade B single piece circular opening / black / bitumen coatedMB260600 dia750×7507552
Ductile iron / heavy duty / Grade A single hinged grating / black / bitumen coatedGA2325365×310515×4007523
Ductile iron / heavy duty / Grade A single hinged grating / black / bitumen coatedGA2450430×375525×52510032
Cast iron / channelled / hinged grateMA049390×315590×52010026


AG operates a Quality Assurance Scheme to these standards to cover all aspects of production.All units are supplied with suitable lifting points.A precast concrete manhole is a strong, durable structure with its own inherent strength and does not require a concrete surround at standard depths.

More Information

All units are manufactured and tested in accordance with hEN 1917: 2002 and BS 5911-3: 2002 which, in addition to specifying dimensional tolerances, etc., clearly defines all the performance tests necessary to ensure that the product will perform satisfactorily in service.

Minimum order quantities are required for certain sizes, depths, colours, etc. Before placing an order, please speak to one of our sales teams – they’ll be happy to advise on this and any other product questions you may have.

You can reach them on:
UK: 0121 747 0202   |   Ireland: +44 (0)28 8778 8112

Case Studies

Featuring Manhole Accessories


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