How much does it cost to drill holes for cable tray hangers

The cost of drilling holes for cable tray hangers typically ranges from £25 to £75 per hole, depending on material, hole size, and location.Factors Affecting PriceMaterial Type: Drilling through concrete, brick, or blockwork is more expensive than through drywall or timber due to the need for specialized tools like diamond core drills .Hole Size and Depth: Larger or deeper holes require more time and equipment, increasing the cost. Standard cable tray hanger holes are usually 6–12mm for bolts or studs .Quantity: Bulk drilling often reduces the per-hole cost, while single or irregular holes may be charged at a higher rate.Location and Access: Overhead or hard-to-reach areas, such as ceilings or service voids, may require scaffolding or lifts, adding to labor costs .Compliance and Fire Safety: Holes drilled through fire-rated walls or floors must be sealed properly to maintain fire integrity, which can increase cost due to additional materials and labor .Typical PricingSmall-scale projects (residential or light commercial): £25–£40 per hole.Medium-scale projects (offices, schools, hospitals): £40–£60 per hole.Large-scale or specialized projects (data centers, industrial sites, fire-rated walls): £60–£75+ per hole .Additional ConsiderationsCable Tray Hanger Type: Stand-off brackets, G-hangers, and trapeze supports may require different hole sizes or spacing, affecting drilling time .Equipment: Diamond drilling or core drilling is preferred for precision and minimal damage, especially in concrete or reinforced walls .Contractor Rates: Prices vary by region and contractor experience; London and Southeast England tend to be at the higher end of the range . For accurate budgeting, it is recommended to request a site-specific quote from a specialist contractor who can assess wall material, hole quantity, and fire safety requirements. This ensures compliance with regulations and avoids unexpected costs.