Completed grinding and repointing to a semi-detached pair — crisp, uniform joints across the full elevationSemi-detached property under scaffold for grinding and repointingGrinding out mortar joints under dust extractionNew pointing going inRake-out depth checked and photographed with a digital gaugeOperative grinding out joints at high level with M-Class extraction and powered respiratorCompleted repointing — freshly pointed brickwork in evening light

Service

Grinding & pointing, including masonry repairs

Mortar joints deteriorate, crack and come loose with age, weathering, poor original workmanship and settlement. Missing mortar is a common source of leaks and damp and can affect the structural integrity of a wall. We mechanically rake out brick and stone joints with grinders fitted with specialised M-Class dust extraction and cyclone separators, our operatives wearing powered respirators as standard — dust and inconvenience to residents kept to a minimum. Joints are then repointed to the specified mortar and joint profile so the brickwork is weatherproof and looks right.

  • Full elevations, chimneys, boundary walls and internal masonry
  • Rake-out depth photographed against a gauge on every property
  • Damaged, spalled or frost-blown bricks cut out and replaced to an exact or best possible match
  • Brick rebuilding and air-brick installation
  • Roofline masonry — ridge re-bedding, verge pointing, chimney rake-out, repoint and flaunching
  • Masonry cleaning and acid wash
  • All grinding operatives wear powered respirators (PAPR); vibration monitored and health surveillance in place
  • Our own M-Class extraction units, LEV tested every 12 months
  • Pointing teams with over 150 years' combined experience — 1,500+ properties repointed
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Semi-detached pair under scaffold with mineral-wool insulation boards fixed to the first floorMineral-wool insulation boards mechanically fixed around a window revealInsulated gable elevation with fixings in place, ready for basecoat

Service

External wall insulation

EWI is an insulation and render system fixed to the outside of a property. It keeps heat in during winter and out during summer, cutting heat loss and energy bills, reducing condensation on internal walls, improving weatherproofing and sound resistance — without taking any space from inside the home or needing internal access. Insulation board is mechanically fixed and bonded to the existing structure, a reinforced basecoat with mesh and fire pins is applied, and the finish coats create the render chosen by the client.

  • Silicone texture, brick-effect, pebble dash or a combination
  • PAS 2030:2023 certified installer, TrustMark registered — the paperwork SHF, ECO and Warm Homes funding requires
  • Wetherby Building Systems and Sika approved installer with manufacturer site inspections
  • Manufacturer-backed system guarantee of 25 years minimum
  • Extended insurance-backed guarantee of 10 years or more on our EWI workmanship, so the installation is covered independently of the manufacturer's product warranty
  • 1,000+ properties insulated in the last five years
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Completed silicone render with brick-effect quoin detailing to windows and door and contrasting sillsFinished through-coloured silicone render with bellcast detailReinforced basecoat with mesh embedded, ready for the finish coatCompleted smooth cream render to a semi-detached property with brick quoins and plinth retainedTerrace frontage with new basecoat render applied, ready for the finish coat

Service

Rendering

Traditional sand and cement, lime-based and through-coloured silicone render systems, applied as part of an EWI package or on their own. We hack off and replace failed render, carry out localised render repairs, and detail bellcasts and stop beads so the finished elevation sheds water properly.

  • Silicone texture — through-coloured, self-cleaning and flexible; the standard finish on our EWI schemes, in any colour from the manufacturer's range
  • Brick-effect render — a brick-slip appearance cut into the render, often used on the lower storey or to match neighbouring brickwork
  • Pebble dash and dry dash — traditional aggregate finishes, new or to match existing
  • Traditional sand and cement and lime-based renders for older and solid-wall properties
  • Hack-off and re-render; render repairs and patching to match
  • Bellcast, stop-bead and movement-joint detailing; sill extensions, cleaning and silicone sealing on completion
  • Applied over Wetherby Building Systems and Sika EWI as the approved installer, carrying the manufacturer's system guarantee
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Completed crack stitching — helical bars bedded into repointed joints beneath the window, with new air bricks fittedCrack stitching and repointing to the front elevation of a semi-detached propertyHelical bar stitching across a long horizontal crack between floors, joints repointed to matchLintel replacement — brickwork above the window supported on props while the failed lintel is cut out and replacedDiagram: helical crack stitching — stainless bars grouted into raked bed joints across a stepped crackDiagram: cavity wall tie replacement — failed tie isolated and new helical stainless tie installed

Service

Structural repairs & wall ties

Structural damage can result from subsidence, age-related deterioration, poor construction, substandard materials and impact. Cavity-walled homes are also at risk of wall tie failure as the original metal ties corrode. If a property shows cracked lintels, bowing or bulging walls, cracking masonry or other defects, we carry out a full survey and repair it. On most domestic work we diagnose and repair without an external engineer: we expose the area, establish the cause and put it right.

  • Helical crack stitching
  • Cavity wall tie removal and replacement
  • Lintel repairs and replacement
  • Brick rebuilding and replacement
  • Traditional concrete underpinning
  • Free survey report and quotation
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Soil and vent pipe refixed on a finished silicone render elevationRainwater pipework reinstated on a completed EWI bungalow

Service

External pipework

External wall insulation adds 90–120 mm to the face of a wall, so every soil and vent, rainwater and waste pipe has to come off, be extended and go back on. We do this as part of the same sequence: pipework extended to suit the new wall thickness before boarding, then refixed on the finished render with the right brackets and sealed.

  • Soil & vent, rainwater and waste pipes extended for the insulated wall
  • Refixed on the finished render and silicone sealed
  • Gullies, hoppers and overflows reset to suit
  • New UPVC pipework where the existing is beyond reuse
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Rebuilt natural stone boundary wall with coped top, finished in lime mortarUnderpinning pit excavated beneath an existing footing, ready for mass-concrete pourFenced working area with compacted hardcore base prepared for new pavingStone boundary wall being taken down and rebuilt course by course, reusing the original stoneNew flagged steps and landing with brick risers and a rebuilt brick wing wall

Service

Groundworks & general building

The general building and groundworks that go with external schemes, carried out by the same long-serving team. Paths and block paving reinstated after scaffold, drainage and footings, bricklaying, concreting, tarmacing, fence erecting and landscaping — so a scheme's loose ends sit with one contractor.

  • Traditional mass-concrete underpinning to failed or settled foundations
  • Excavation, drainage and footings
  • Flagging — paths, steps, landings and patios
  • Block paving and drives
  • Natural stone and brick boundary walls taken down and rebuilt, reusing the original materials where possible
  • Bricklaying — new walls, rebuilding and alterations
  • Concreting — slabs, bases, footings and hardstandings
  • Tarmacing — drives, paths and car park surfacing
  • Fence erecting — timber, concrete post and security fencing
  • Landscaping — gardens reinstated after works, turfing, planting and boundaries
  • Licensed plant and operator hired in where a job needs it
Request a free survey

Not sure which service you need?

Send us a scheme schedule or a few photos. We survey, price and programme grinding & pointing, EWI, render and structural packages within days — as principal contractor or as a subcontractor under yours.

Get in touch

Let's discuss your next project

Get in touch today for a free site survey and no-obligation quotation.

0113 276 0020Call us today
enquiries@cpm-contracts.co.ukEmail us
Darrington, PontefractWest Yorkshire head office

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