CASE HISTORY PDF'S

Shaft sinking enables new sewer

8 shafts installed as part of a major microtunnelling project to install new sewers in Kent

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Rod pulling replaces Northampton sewer

A failed sewer in our home town of Northampton gave us the chance to show

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Microtunnelling installs gravity sewer

A major Kent development required additional sewer capacity to cope with increased flows from new properties

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Headings connect new nurses home

A new nurses' home at Queen Elizabeth, The Queen Mother, Hospital in Margate

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Headings replace sewer under housing

A failed sewer under homes needed to be replaced

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Headings connect new London homes

The A1005 in Enfield is a major traffic route which could not be disrupted...

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Auger boring installs Oldham sewer

Flooding affecting homes and a school in Oldham...

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Auger boring for Nottingham storm drain

Flooding of the railway near Nottingham...

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Trees protected using guided auger boring

The conversion of an old school in a conservation area...

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Lincolnshire pumping main installation

Pipes installed under railway in weekend possession.

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Expandit upsizes Taunton Sewer

As part of a flood alleviation project...

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Expandit upsizes waterfront sewer

A new apartment development on Liverpool's waterfront...

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Expandit upsizes Mumbai sewer

Perco licensee Shriram in action in Mumbai.

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Cable ducts relined with EcoCIPP

EcoCIPP rehabilitates asbestos cement cable ducts.

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EcoCIPP alleviates Hampshire flooding

EcoCIPP cures a 30 year flooding problem.

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U Shaped Victorian Sewer Lining

In another UK first, a U shaped sewer is relined with a specially designed EcoCIPP liner.

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Auger boring within a pipe

A series of lateral sewer connections, achieved by Perco as part of The Environment Agency's flood alleviation project for Lewes, have set a UK precedent in augerbore trenchless technology. Our auger bore team operated subcontract to Costain B&V JV a

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Sliplining in Northwich

Working with main contractor Galliford Costain, Perco installed two 450mm diameter pumping main pipes in Northwich, Cheshire.

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Sliplining in the Rhondda

When Costain was building the new Porth Relief Road, they had to decommission an old culvert draining redundant mine workings at Porth in the Rhondda Valley, South Wales. We were asked to come up with an innovative solution for the problem.

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Mini burst upsizes foul sewer

When the owner of a Sheltered Accommodation development in Milton Keynes wanted to get the development’s foul sewer adopted by Anglian Water, the local water utility company, it was discovered that the sewer was undersized. The existing 100mm interna

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Shaft sinking in Liverpool

A Victorian brick egg sewer running the length of Dale Street, one of the busiest streets in Liverpool City Centre had collapsed half way along the street. The area has been heavily developed over three centuries and the ground surrounding the collap

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Flood alleviation in Notts

Perco installed a 7.5m diameter caisson shaft and 450mm gravity sewer for a flood alleviation scheme in Nottingham.

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Rod pulling under live rail

Trains on the Oxford-Worcester (OWW) line kept running in safety, as Perco renewed an under-track, brick lined culvert by rod pulling, in July 2004.

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Rod Pulling in Kenilworth

One of Perco's trenchless pipe installation techniques was used to avoid disrupting a site of special scientific interest, in May 2004, as part of Severn Trent Water's extensive flood alleviation measures in Kenilworth, Warwickshire.

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Manhole bursting in Cornwall

When South West Water needed to renew a 220 metre section of foul sewer running close to a river at Penryn in Cornwall, they called Perco in to advise on the job.

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Lateral cutting on the railway

As part of a major sewer renovation project for Tomlinson Rail and Severn Trent Water, Perco cleaned and surveyed 2000 metres of storm and foul sewers at 20 locations throughout the East Midlands.

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Headings cure Gosport flooding

A major flooding problem affecting housing in a cul-de-sac at Gosport, Hampshire had been causing problems for residents and attracting news coverage in the local press and on TV. Because the affected sewers ran under housing, open cut was not an opt

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Headings in Birmingham

When contractors Bowmer Kirkland needed to connect a prestigious new Birmingham office development to the public sewer network, they were unable to use traditional open cut methods or other trenchless techniques due to lack of access and the risk of

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Drilling to freedom

Using one of its laser guided BM400 auger boring rigs, Perco installed an outfall sewer pipe for a new Bovis lend-lease development adjacent to the Law Courts in Gartside Street, Manchester.

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Auger boring in Blackburn

Flooding problems in the Granville Road area of Blackburn necessitated an upgrade to the local sewer network. United Utilities’ main contractor, Balfour Beatty Utilities had to install a new overflow system to reduce local flooding.

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Going Underground

We used our Bohrtec BM150DT guided auger boring rig to install a new cable duct under the live rail at Kew and Gunnersbury Underground Stations. The BM150DT was chosen for its ability to work from small diameter shafts and within pipes, and for its a

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Expandit in Exeter

When South West Water wanted to develop a site on the outskirts of Exeter, they had to upgrade the existing sewer to 450mm. Our Expandit Pipe Bursting Team was called in to upsize 600m of an existing sewer from 375mm to 450mm ID and a second sewer fr

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Keep the cider flowing

Gaymer’s Cider Company operates its production facilities to the highest standards of hygiene control, and when it’s Shepton Mallett factory’s drains and sewers needed rehabilitating, Perco was able to offer a clean, non intrusive solution to the pro

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Brick Egg Sewer relined

A failing egg shaped brick sewer in Leeds City Centre gave us a great chance to show just how flexible our Cured in Place GRP Lining system, EcoCIPP, really is!

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Directional Drilling in Harlech

A 60m polyethylene pipeline is installed through cliffs at Harlech, North Wales using trenchless technology.

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EcoCIPP Relining in Gloucester

In September 2005, Perco installed the first EcoCIPP liner in a Severn Trent asset, working alongside Barhale Construction and the liner was installed in just 1 day.

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