Blog

How Fencing Contractors in Perth Achieve Accurate Installation

How Fencing Contractors in Perth Achieve Accurate Installation
05 Oct 2026

A durable fence begins with site preparation and thoughtful installation. Professional fencing contractors in Perth use specialised measuring, excavation, levelling and fixing equipment at each stage of the process. The right tools and methods set precise post positions, dig consistent holes, secure stable footings, and maintain accurate panel alignment.

Preparing the Ground 
Accurate measurements are key to a good installation. For this, contractors use:

●tape measures
●marking paint
●stakes
●string lines

to establish the fence route, post centres, corners and gate positions. Laser levels are then used on long runs to establish consistent horizontal or vertical reference points and reduce any alignment faults.

Before excavation, underground utilities or boundary restrictions are checked for. Fencing contractors then assess the ground conditions of the specific area. Along with this, local planning and fencing requirements are also checked. 

Excavating Post Holes
Once the layout is marked, contractors use:

●post-hole diggers
●augers
●spades
●shovels
●rock bars, or
●specialised drilling equipment.

Mechanical augers speed up excavation, while hand tools allow the installer to clean and shape individual holes accurately. Hole diameter and depth are chosen based on the fence design, post dimensions, ground conditions and structural requirements. Gate, corner and end posts need extra footing capacity as they carry greater loads. Correct excavation prevents posts from being inadequately embedded. 

Positioning and Levelling the Posts
Posts are positioned using a string or laser reference. A spirit level is used to check plumb on multiple faces. Tape measures and alignment gauges then confirm spacing.

Installers use temporary braces, clamps and soft mallets to hold posts at the correct height and position while the footing is prepared. On sloping blocks, the fence may need to be stepped or raked instead of forcing panels into an unsuitable straight line.

Stabilising Posts and Concrete Footing
With posts accurately positioned, fencing contractors prepare the footing using:

●a concrete mixer
●mixing tubs
●buckets
●shovels
●measured water systems.

It depends on the project size and concrete specification. The concrete is placed around the post and consolidated to minimise voids. Installers then check that the alignment and plumb are correct while the concrete is workable.

Allowing the footing to cure before loading the posts is important because rails and panels can otherwise disturb their position. Properly formed footings provide resistance against movement caused by wind and normal fence loading.

Installing Rails, Panels and Fixings
After the posts have stabilised,

●drills
●impact drivers
●rivet guns
●screw guns
●clamps
●tin snips
●hacksaws
●power saws

are used to install rails, sheets, paling boards or other infill components. Rails are positioned using reference points. Steel panels require self-drilling screws or rivets, while timber fences require exterior-rated screws or nails. Cut edges are then carefully measured and trimmed using saws or metal-cutting tools to maintain consistent gaps and junctions. 

Performing Final Quality Checks
The installation is completed with another sequence of measurements and final checks. Contractors inspect post plumb, panel level, rail alignment, fixing security, clearances and gate operation. Lasers or string lines reveal deviations that might not be obvious when viewed from one end.

This matters because correcting alignment during installation is much easier than repairing a distorted panel later on. Manufacturer installation guidance similarly emphasises string lines, spirit levels, proper post spacing, and suitable footing preparation.

Professional fencing installation involves measuring, excavating, positioning, stabilising, and fixing. Fencing contractors in Perth use equipment suited to site conditions and fence design to maintain lines, secure footings, and ensure consistent spacing. Careful alignment, concrete placement and quality checks all contribute to a fence that stays stable and performs reliably over years.

All Perth Fencing is a licensed contractor serving the Perth metropolitan area. We specialise in installing and repairing Colorbond and aluminium fences. Our fencing contractors are certified to handle all types of Colorbond and aluminium fencing systems. Stay tuned to our blog page for more information.
 

Feel free to contact us