AC Cable Solutions | Project supply
A controlled route to core-hole reinstatement
HoleMole helps construction and building-services teams support and fill suitable concrete core openings from the accessible workface. The modular system combines permanent steel formers with reusable placement tools for a consistent, project-ready method.
Exclusive Distributor – UK, Europe & Middle East
5 sizes
A graduated former range for measured concrete openings
3 stages
Lower, retain and reinstate from the accessible workface
From above
Designed to reduce routine access beneath the slab
Reusable tools
Stand, SpeedNut and chute support repeat project work
A repeatable site method
Reinstate drilled openings without routine boarding below
HoleMole provides a permanent galvanised-steel former beneath the repair. Its folding sections pass through the measured core, open below the slab and are held in position with reusable equipment while the specified repair material is placed from the working level.
- Helps reduce temporary shuttering work beneath suitable horizontal cores.
- Supports a consistent sequence across planned M&E and fit-out programmes.
- Allows the team to select an appropriate former for openings from 50–317mm.
- Works with the project-approved grout, mortar or repair compound.
Manufacturer recognition
Former selection
One system. Five working ranges.
Measure the clear diameter of the prepared opening before choosing a Mole. The former must pass through the core and provide the correct overlap against sound concrete beneath the slab.
Nominal coverage is a selection guide. Confirm the actual prepared opening, seating condition and approved repair detail before installation.
Installation sequence
Three controlled stages
Prepare the opening and chosen repair material to the approved project method, then follow the system sequence.
Introduce the former
Lower the selected Mole
Connect the threaded rod, fold the one-way sections and pass the former through the prepared core. Pull upwards after it clears the underside so the steel former opens and seats beneath the slab.
Establish support
Retain it with the stand
Position the Mole Stand over the opening and guide the rod through its centre. Depress the SpeedNut release, slide it down the rod and tighten it so the former remains correctly held for placement.
Complete the repair
Place, finish and release
Use the Speed Chute to direct the specified material into the core and finish the surface. Once the material reaches the required set, remove the reusable equipment and treat the rod in accordance with the approved detail.
Method library
See the system working on site
Review the method beside traditional shuttering, watch floor and wall installations, and see how a repeatable setup can support programmes containing many drilled cores.
Film 01
Method comparison
Compare above-slab support with conventional boarding beneath the opening.
Film 02
Floor installation
Follow the sequence for a suitable horizontal concrete core.
Film 03
Wall application
See the dedicated applicator retain a compatible former at a vertical opening.
Film 04
Project-scale use
Explore the value of a repeatable method across a large number of openings.
Where it fits
Built for coordinated construction and services work
HoleMole is suited to projects where teams need a planned, accessible approach to reinstating suitable concrete cores after service routes change or redundant openings are identified.
Services coordination
For redundant or repositioned openings arising during mechanical and electrical installation work.
Commercial fit-out
Supports an organised approach where floor layouts and building services evolve during delivery.
Maintenance works
Useful where access beneath an existing slab is restricted, disruptive or difficult to coordinate.
Project reinstatement
Creates a consistent workflow for programmes involving repeated drilled openings across a site.
System components
Select formers, kits and reusable tools
Technical questions
Planning a HoleMole repair
These answers cover initial selection and use. Project-specific structural, fire, acoustic and waterproofing requirements must be confirmed by the responsible design team.
Can HoleMole be installed entirely from the upper workface?
For a suitable horizontal opening, the former, stand and filling tools are designed to be positioned from above. The finished repair must still follow the approved project detail and method statement.
Which parts of the system can be reused?
The Mole Stand, SpeedNut, Speed Chute and Wall Applicator are reusable when removed at the correct stage, cleaned and inspected. The selected galvanised-steel Mole remains beneath the repair.
How is the correct Mole size selected?
Measure the clear diameter of the prepared core and choose the stated range that provides suitable seating on sound concrete. The five-size range covers approximately 50–317mm openings.
Does HoleMole determine which repair material should be used?
No. The grout, mortar or repair compound must be selected for the substrate, dimensions, loading and any required fire, acoustic, water-resistance or durability performance.
Can the system be used at vertical openings?
A dedicated Wall Applicator and SpeedNut are available for compatible vertical applications. Confirm former selection, material suitability and the complete wall-repair detail before work starts.
Project and international supply support
Discuss product selection, quantities and delivery with AC Cable Solutions
Installation must follow the approved project specification and site method statement. Confirm the suitability of the selected former and repair material, together with any structural, fire, acoustic, waterproofing or temporary-works requirements, before use.