Delfingen Conduits & Cable Glands – Cable Protection

Cable Glands UK | UK distributor

Fill concrete core holes from above — faster and safer

HoleMole is a three-stage core-hole filling system designed to help contractors support and fill concrete openings from the working level. It reduces the need to access the floor below, fix temporary boards or bring in additional access equipment for routine openings.

See the 3-step process Shop HoleMole

Install from above
Five Mole sizes
For 51–318 mm holes

HoleMole Contractor Starter Kit with Moles, stand, chute and threaded rods

Exclusive UK Distributor

3 steps Lower, secure and fill from the working level

5 sizes A practical range for common concrete core holes

2–12.5 in Approximately 51–318 mm opening coverage

From above Helps reduce access and disruption on the floor below

A smarter core-hole repair method

Prepare concrete core holes without boarding from below

HoleMole uses a collapsible galvanised-steel former that is lowered through the opening and pulled back against the underside of the slab. A reusable stand, fast-action SpeedNut and formed chute then let the installer support and fill the opening from the same working level.

Helps remove the routine need to fix plywood beneath the opening.
Reduces repeated trips to the floor below and the associated work-area disruption.
One-way folding sections pass through the hole, then seat below the slab.
Suitable for use with an approved non-shrink grout or specified repair material.

Manufacturer recognition Winner of Most Innovative Products at World of Concrete

HoleMole stand and chute supporting a core-hole former beneath a concrete slab — Core-hole support installed from the working level

How to use HoleMole

The HoleMole 3-step process

Select the Mole that overlaps the opening correctly, prepare the concrete and repair material to the project specification, then complete these three stages.

Lower the Mole through the opening

Attach the threaded rod to the correctly sized Mole. Fold the one-way sections and lower the former through the core hole. Once it has cleared the underside, pull the rod upwards so the Mole seats firmly below the slab. Prepare the opening in line with the site specification.

Expandable galvanised-steel HoleMole formers for concrete core holes

Secure it with the Mole Stand

Place the stand over the opening and guide the threaded rod through its centre slot. Press the SpeedNut plunger, slide the nut down the rod, then release and turn it to final-tighten. The former is now held securely in position ready for filling.

HoleMole support stand fitted with its fast-action SpeedNut

Fill, finish and remove the stand

Slide the Speed Chute into the stand and place the specified repair material through it into the opening. Finish the material flush with the surrounding surface. After it has achieved the required set, remove the reusable stand and trim or break off the rod as directed by the approved method statement.

Aluminium HoleMole Speed Chute used to guide repair material into a core hole

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Installation must follow the approved project specification and site method statement. Confirm the suitability of the selected repair material and any structural, fire, acoustic, waterproofing or temporary-works requirements before use.