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Unite is our highest quality range of access covers and gully grates with over 500,000 installations and 0 reported failures. Unite is engineered for a long life and has been in service on highways for over 20 years, providing substantial savings on both installation costs along with unnecessary road disruption.

Unite manhole cover installed at Birmingham Town Hall

A quality above the rest

Using the very latest tools and software, the Unite range of manhole covers and gully gratings has been engineered for an extremely long life.

Key to Unite’s longevity is minimising seat wear between covers/gratings and frames. The range has the stiffest cover/grating structure in its class and on top of this, seating which is less vulnerable to any movement caused by covers and gratings flexing.

Unite has also been design to work sympathetically with bedding mortars, reducing stresses on the frame foundation – identified by WRC as a major cause of manhole cover failure. To increase surface contact with bedding materials the underside of the Unite frame features an engineered tread pattern, and to inhibit crack initiation all contours of the Unite frame, where it engages with the bedding materials, are fully rounded.

Engineered for a sustainable future

  • In service on highways for over 20 years
  • Over 500,000 installations with zero reported failures
  • Cover and grating designs substantially reduce seat wear
  • Frame features are sympathetic to bedding materials
  • Retrofittable sealing plate available
  • Exceeds BS EN 124
  • Complies with DMRB, CD 534 and Series 500
  • Kitemarked by BSI
  • 100% recyclable product

Unite in numbers

Unite is a proven range, in service for over 20 years and offers significant benefits to asset owners, contractors and end users.

average lifespan
Over 10years
units installed
average lifetime saving
Unite manhole cover being installed

How much can I save?

Ironwork replacement typically takes around 3 hours*. Studies show the 2,000 users per hour of A-roads are delayed by an average of 4 minutes in roadworks**. This loss of earnings and productivity equates to over £2,200 per hour. The saving to society of not having a 3-hour long unnecessary manhole replacement is at least £6600 and cuts the associated noise, dust and waste.

  Unite Typical MHC
Approximate cost £140 £70
Installtion frequency 1 2+
Installation cost £600 £1,200
Total cost £740 £1,340
Approximate cost £140 £70
Total Savings £580
Sustainable saving Social cost £6,600

*Based on independent analysis commissioned by a major water utility. **Statistics collated from Department for Transport & The National Traffic Survey 2014

Unite D400 manhole cover installed at Piccadilly Circus

More than 100,000 units supplied to Thames Water

Thames Water

As a key supplier to Thames Water, whose adoptable assets are installed in some of the most high profile and heavily trafficked roads in the UK, we've managed to reduce their manhole cover failures to 0 through the use of Unite. We have now supplied more than 100,000 Unite units to Thames Water without one recorded failure over a 20-year period. We’re incredibly proud of our Unite series and how its pioneering design has been underlined by its fantastic performance.

Unite in action

Related case study

M25 hard shoulder improvements

Mouchel were contacted by the Highways Agency (HA) and tasked with investigating the most cost effective and reliable way to utilise the hard shoulder of the M25 during peak rush hours. This posed several engineering problems, of which one was to consider the service life of the manhole covers that would now be located in the wheel track of one of Europe’s busiest stretches of motorway.



Read the full Case Study
Related case study

Solving Virgin Medias Failing Manhole Cover Issue

Virgin Media were experiencing serious problems with a manhole cover situated in a bus lane on Essex Road in Islington.

Virgin Media

Virgin Media

Read the full Case Study