U&M Group

Case Studies

Escape of Water – Battle

  • Type of work: Escape of Water - Long standing leak on water pipe.
  • Location: Battle, Kent
  • Duration: 4 months
  • Value: £35,000.00
  The property was completely stripped out back to the beam and block floor structure and blockwork walls. The internal partition walls were removed and reconstructed. All electrical and plumbing services were renewed together with kitchen and bathroom. The property was fully replastered and redecorated with new floor coverings and heating system.
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Impact Damage Repairs – North London

  • Type of work: Impact Damage Repairs
  • Location: Edmonton, North London
  • Value: £15,000.00
Following impact by a car, we were called to the property to erect a temporary security screen, provide support to the  structure. The bay brickwork was reconstructed and new windows fitted. Internal crack repairs, plastering and redecorations were carried our to the lounge and hallway/staircase. External render repairs, and redecorations were completed. Finally the boundary walls were reconstructed and the  block paving drive relayed, where damaged and to accommodate replacement of the gas meter.  
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Piled Raft Foundations

  • Type of work: Piled Raft Foundations
  • Location: Herne Bay, Kent
  • Duration: 6 weeks
  A developer in North Kent required 3 no piled raft foundations to be formed, to act as foundation / structural floor slab for his 3 storey timber frame structures. Our engineers designed 57 no 300mm dia open bored piles to an average depth of 10m with the upper 3m designed for heave using full tension reinforcement rather than a combination of reinforcement and slip sleeves. The piles were linked by a 250mm thick rc raft cast over 220mm Cellcore. The perimeter of the raft required a recess to be formed in the top edge to ensure that the external...
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Impact Damage repairs – Grade 1 listed barn in Buckinghamshire

  • Type of work: Impact Damage repairs
  • Location: Buckinghamshire
  • Duration: 4 Weeks
  • Value: £40,000.00
  Following a collision by a vehicle into the flank wall of the listed barn, we were engaged to undertake the necessary repairs to both the structure and fabric of this very attractive building.        Initially the temporary support works required enhancing and the damaged section removed, whilst retaining both security and weather proofing. The damaged masonry dwarf wall was repaired and the upper walls reconstructed using reclaimed ‘green oak’ timber, which had to be workshop fabricated to match the existing section.  Internally, the walls were finished in a lime plaster and the entire barn redecorated using a lime...
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Staircase Reconstruction

  • Type of work: Staircase Reconstruction
  • Location: Edgware
  • Duration: 4 weeks
Staircase Reconstructions - Edgware   The staircase was cracked and brickwork unstable. We  demolished the staircase and salvaged the concrete treads. The staircase was then reconstructed on new foundation in new brickwork.  
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Garage Demolition and Reconstruction

  • Location: Romford
  • Duration: 9 Weeks
  • Value: £29k
Garage demolition and reconstruction on a piled raft foundation. The garage had suffered Subsidence and required demolition, formation of a new piled raft and rebuild. The project was completed on time and on budget.
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Rear Balcony/Staircase Reconstruction

  • Type of work: Reconstruction
  • Location: Hampstead
  These works were undertaken due to subsidence of a staircase at the rear of the property. The staircase was demolished and reconstructed to a revised design.    Works commenced and completed on time and within budget
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Piling & Ground Beams

  • Type of work: Piling & Ground Beams
  • Location: Whitstable, Kent
  • Duration: 6 Weeks
  • Ground conditions: Clay
  • Value: £59,000.00
Sea Farm, Yorkletts, Whitstable, Kent Piling & ground beams for 2 no new build detached houses. The piling and ground beams works were required due to low strength soil present, together with a high water table. 34 no 300mm dia tremie grouted open bored piles were installed to average depths of 10m using a limited access piling rig which only required a minimal piling mat. Our piling contractors managed to undertake and install 1 plot per week. A series of 450mm square R.C. ground beams were then formed to link the piles, taking a further 2 weeks per plot. All...
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Contiguous Piled Retaining Wall

  • Type of work: Contiguous Piled Retaining Wall
  • Location: Kingston
  • Duration: 3 Weeks
  • Ground conditions: Sand and Clay
Beech House, Coombe Hill, Kingston Contiguous Piled Retaining Wall: Contiguous piled retaining wall for new garden room and pool building. The structure was formed in the rear garden of the property, with particularly difficult and restricted access. 142 no 300mm dia contiguous bored piles x 7m installed around the perimeter of the basement. The piling works took 3 weeks to install. Concrete was pumped from the front of the property into the piles. A guide wall was installed to ensure that the piles were install in the correct location and did not encroach into the proposed basement.      
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Fit out of new build shell

  • Type of work: Renovation
  • Location: Muswell Hill
Nursery School in Muswell Hill As parts of our clients project to construct a new nursery school, we were instructed to fit out the new built shell.     Works included: Install plumbing/electrical services – insulation and screed floors Construct walls and ceilings Manufacture and install staircase Full fit out and redecoration     The prioject was completed on time,  opening for a new school term.
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Fire Damage Repairs

  • Type of work: Repairs
  • Location: Edmonton, Industrial Unit
Edmonton, Industrial Unit  Refurbishment & Repairs: Follwing a fire we were instructed to carry out internal and external refurbishment of the structure, including rebuilding and repairs to party walls. New windows, doors, security shutters ,electrical installation, plumbing and  heating  were fitted and full redecorations carried out . Roof renewal by others.      
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External repairs and restoration works

  • Type of work: Dyrham Park Country Club, Barnet
  • Location: Restoration
Dyrham Park Country Club, Barnet External repairs & restoration works: External repairs and restoration works, carried out as a part of the Country Clubs' Cyclical Repairs/Maintenance Program. Works Completed were: The wall of the building was fully scaffold with a walkway onto the flat roof from the rear door.  Masonry repairs carried out including Helifix crack stitching.  The defective windows and doors were repaired or replaced.  Full redecoration of external surfaces.  Flat roof repaired, pitch roof slating overhauled. Project commenced and was completed on time.  We have been advised that ur company will be invited to tender for the next phase of the...
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Contiguous piled retaining wall

  • Type of work: Retaining
  • Location: Rye, East Sussex
  • Duration: 6 Months
  • Ground conditions: Clay
Rye, East Sussex The adjacent retained land had suffered surface slippage and fallen against the flank wall of the timber framed bungalow.   Piling mat formed using stone filled gabions. Contiguous piles then installed using 40 no. 350mm diameter board piles x 6m deep using a 1.0 tonne Super Kitten piling rig. Once the piles had cured the ground in front of the piled was excavated and a new RC retaining wall & integral capping beam was formed. Once complete, the wall was rendered and ground backfilled and regraded behind the RC wall. The project took 6 months to complete...
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Piled Raft Underpinning

  • Type of work: Repairs
  • Location: Herne Bay
  • Duration: 6 Weeks
  • Ground conditions: Clay
Subsidence House Repairs- Herne Bay   Our customer had a detached four bedroom property in Herne Bay that had suffered damage resulting from subsidence due shrinkage of the clay subsoil. The front corner of the property was so badly cracked and distorted that the corner of the property had to be taken down. Prior to its removal, our engineers designed a temporary scaffold with needle beams to support the roof above, while the underpinning was being undertaken. Once the wall was down and the property stripped out, we installed a piled raft using twenty four 200 mm diameter Open Auger Piles...
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CFA Piling

  • Location: Canterbury
  • Duration: 1 Week
  • Ground conditions: Chalk
Restricted Access Mini Piling-  Canterbury   We were contacted by a developer in Canterbury who was planning to construct a small 2 bedroom detached property on a small infill site between two rows of terraced houses on the outskirts of the City center, adjacent to the river Stour. The site was very narrow and restricted in terms of storage space. Given the close proximity of the neighbouring properties and the poor ground conditions consisting of 3m of made ground overlying wet gravel then chalk, we installed 8 no 250mm dia cfa grout injected bored piles to a maximum depth of...
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