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Althon Limited

Althon Limited Contact Details

Telephone
Click to view
Fax
01603 488598
Contact
Mr Tim Gates
Email
Address
MAG Group Building
Vulcan Road South
Norwich
Norfolk
NR6 6AF
England UK

About Althon Limited

Althon Precast Headwalls and Water Management

Althon Ltd manufacture and distribute specialist water management products to the construction industry.

We design and manufacture precast concrete headwalls to meet Sewers for Adoption and Severn Trent Guidelines. Our product range includes flap valves, penstocks and stop logs as well as trash screens and outfall safety grilles. Althon also manufacture precast concrete penstock chambers and offer a large range of commercial and industrial application drainage channels.

Precast Concrete Headwalls

Althon precast concrete headwalls offer a cost effective alternative to in-situ headwalls pipework discharging into attenuation ponds, rivers, ditches, swales and tidal environments. We have ranges of Sewers for Adoption 7th Ed. and Severn Trent Water specification compliant headwalls. We offer a range of factory fitted accessories on our headwalls such as flap valves, penstocks, Kee Klamp® handrails, baffle blocks as well as gratings and trash screens.

  • Precast Concrete Headwalls
  • Headwall Specifier
  • Standard Precast Concrete Headwalls
  • Sewers for Adoption (SFA) Headwalls
  • Rectangular Precast Headwalls
  • Rectangular SFA Headwalls
  • Angled Precast Headwalls
  • Culvert Precast Headwalls

Flow Control & Flood Prevention

Althon offer a range of specialist water management and flood prevention products such as HDPE flap valves, ductile iron flap valves, penstocks, Wastop inline non-return valves, stop logs, Tideflex duckbill and Checkmate valves. We offer flanged, wall mounted and tidal flap valves as well as wall mounted and inline penstocks.

We can factory fit most of these products to our precast headwalls or precast inspection chambers if required.

  • Penstocks
  • Flap Valves
  • Wastop Inline Non Return Valves
  • Hand Stop Gate
  • Stoplogs
  • Manhole Pipe Safety Chains
  • Orifice Plates
  • Tideflex Valves

Drainage Channel Range

The Althon drainage channel range of surface water channel drainage products caters for all types of construction sites from car parks to airports and docks. Our drainage channels cater for applications from A15 – F900 load classes.

  • High Capacity Drainage Channel
  • Polymer Concrete Drainage Channel
  • GRP Lightweight Drainage Channel
  • Light / Medium Duty Drainage Channel

SFA Outfall Safety Grilles, Trash Screens & Precast Penstock Chambers

Althon offer a comprehensive range of Sewers for Adoption, Sewers for Scotland and UU specification gratings, 45 and 60 degree sloped trash screens with the option for side returns and circular pipe mounted gratings.

We also have a range of precast concrete chambers for housing factory fitted penstocks and precast concrete end walls with fitted penstocks or flap valves.

  • Sewers For Adoption Outfall Safety Grilles
  • Sloped and Circular Trash Screens and Gratings
  • Precast Concrete Penstock Manhole Chambers
  • Precast Concrete Penstock Endwalls

Althon Ltd are part of the MAG Group of Companies

MAG Group Limited is a privately owned UK based business operating since 1982. MAG Group has 6 subsidiary companies concentrating on the manufacture and supply of specialist products for the construction industry and retail markets.

We employ around 70 people and have a customer base throughout the UK and worldwide having traded in over 50 countries to date. MAG Group Limited anticipates significant growth in 2018 with Group turnover set to exceed £17 million.

If you have any more questions or enquiries please Contact Us

Gallery

Videos

News
06/03/2020
Anglian Water Approved Headwalls

Althon Ltd are pleased to announce that their ‘Sewers for Adoption’ range of Headwalls have been approved for use on projects that are to be adopted under a Section 104 agreement by Anglian Water Services Ltd.  Althon can advise on the most appropriate product from our range to suit the site requirement.  The full range of acceptable Headwalls are available to view drawings and download here.  Consultants should specify the particular Headwall they intend to use when making their application allowing Anglian Water Services to review and ensure it is fit for purpose in the location proposed.  If you are unable to find a Headwall that meets you specific site requirements we are able to offer modifications to our standard Headwalls or can produce bespoke units, please contact our sales office on 01603 488700 or sales@althon.co.uk for further information.
07/02/2020
Bespoke Headwall at Mauldslie WWTW

Althon have recently supplied a bespoke precast headwall retaining wall at Mauldslie WWTW.
The headwall was manufactured to accommodate multiple pipe openings and to site specific dimensions.
The headwall was offloaded and installed by the contractor within the space of a morning.
If you require a bespoke precast headwall please use the Headwall Design Tool or email sales@althon.co.uk for more information on how Althon can help.
06/01/2020
Headwall Design Tool

Althon have launched a Headwall Design Tool to enable you to specify the headwall you require with associated factory fitted accessories.

We have produced a Headwall Design Request Form where you fill out as much information as possible. We will then send you a CAD & PDF drawing of your chosen headwall and will liaise with you to further refine the design to suit your specific requirements if required.

Headwall accessories include but are not limited to flap valves, penstocks, cascade panels, dissipation blocks, V notch weirs, handrails, gates & ladders.
16/12/2019
Headwall Brochure

Althon have released an updated headwall brochure giving a detailed overview of our range of precast headwalls.

The brochure was produced for the FloodExpo 2019 at which Althon exhibited. The brochure not only gives details on our range of concrete headwalls but also our other products such as flap valves, penstocks and drainage channels.

A copy of our new brochure can be downloaded here
10/12/2019
Headwalls with Cascade Panels

Althon have recently manufactured a precast concrete headwall complete with a 8.5m long cascade panel for a project in Sunderland.

You can use the Althon Headwall Specifier to find the headwall you require. Althon can then assist with pricing and design drawings detailing Cascade panesl on our headwall drawings in CAD and PDF

You can also visit the Precast Concrete Headwalls section of the website or call on 01603 488700
20/11/2019
Headwalls with Tideflex Valves

Althon can manufacture concrete headwalls with Tideflex duckbill valves. We factory fit the duckbill valves to our precast concrete headwalls ensuring they fit properly and reducing installation time on site. Factory fitting duckbill valves to headwalls also means the headwalls do not have to be drilled on site which has great health and safety benefits.

You can the Althon Headwall Specifier to find the headwall you require. Althon can then assist with pricing and design drawings detailing Tideflex valves on the headwall drawings in CAD and PDF

You can also visit the Precast Concrete Headwalls section of Althon's website or call us on 01603 488700
14/05/2019
Headwall BIM Objects

Althon have just launched BIM objects available to download from the Headwalls section of the website in .rfa .ifc and .adsk other file types available on request.

If you cannot find the drawing you require in 3D please email sales@althon.co.uk

Visit The Althon Headwalls Website
22/03/2019
Sewers For Adoption Headwalls For Marina

Althon have recently supplied 2No. SFA27D Headwalls with bolt on toes to suit 1200mm dia concrete pipes to Upton upon Severn Marina.

All Althon SFA headwalls and toes are cast with lifting points for easy and quick offloading, transporting and installing into their final position. No need for any specialised lifting equipment just standard lifting hooks are chains are need to move the headwalls and toes.

You can use the Althon Headwall Specifier to find the headwall you require. We can then assist with pricing and design drawings detailing an appropriate headwall.

You can also visit the Precast Headwalls section of our website.
20/03/2019
Precast Headwall Sizes UK's Largest Range

Althon manufacture precast concrete headwalls to suit any pipework. We cast the openings into our headwalls to suit the OD of the specified pipework.


Headwalls can be factory fitted with gratings, flap valves, penstocks, handrails and other accessories.

You can use the Headwall Specifier to find the headwall you require. Althon can then assist with pricing and design drawings detailing an appropriate sized headwall


You can also visit the Precast Concrete Headwalls section of Althon's website

25/10/2018
Box Culvert Headwalls

Althon has new range of precast concrete Box Culvert Headwalls to suit a maximum internal box culvert of 2650mm wide x 1750mm high. All of Althon's CSP Culvert headwalls can be factory fitted with gratings, flap valves, Kee Klamp handrail, penstocks and other flow control devices. Toe depths are also available up to 1000mm and come in thickness of 300 or 500mm.

Please visit the Precast Headwalls for Culverts section of Althon's website for more information or Precast Concrete Headwalls for our entire headwall range. For pricing please contact the Althon Sales Team by email sales@althon.co.uk or by telephone on 01603 488700

11/09/2017
AH4C Angled Headwalls

AH4C Angled Headwalls

The AH4C Angled headwall has been designed specifically to meet the Environment Agency’s ‘Standard rules SR2015 No 27 –

Constructing an outfall pipe of 300mm diameter through a headwall into a main river & Exempt flood risk activities: environmental permits section FRA12 ‘Outfall pipes less than 300mm diameter through a headwall’.  The AH4C allows water to discharge at a 45 Deg. angle, the Environment Agency’s preferred method when discharging into a watercourse.  Available with three different back wall heights and a separate Toe in three depth options that ensure not only is it easier to handle but easier to install & more importantly ensures the foundation around the toe and beneath the Headwall structure can be well compacted.

Please visit the Angled Headwall section of our website for more information or for pricing please contact our sales team by email sales@althon.co.uk or by telephone on 01603 488700
Products & Services

SFA Headwalls

Standard Headwalls

Angled Headwalls

Precast Concrete Headwalls

Penstocks

Flap valves

SFA Gratings & Trash Screens

Concrete penstock chambers

Inline non return valves

Tidal flap valves

Penstock chambers

Concrete chambers

Trash screens

Gratings

Wastop

Wingwalls

Drainage channel

Althon Limited General Description

Althon specialise in the design, manufacture and distribution of drainage products for the management, treatment, isolation and control of water. Our range of products includes Althon precast concrete headwalls, HDPE, cast iron and stainless steel flap valves, penstocks and stop logs
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