Site Access and Your Own Trades

This guide covers how site access and your own trades are managed during construction. You may want your own electrician to install a feature, a family member to landscape, or a preferred contractor to carry out particular work. That can save money or achieve a particular result, but owner involvement on a live construction site can disrupt responsibility, safety and sequencing if it is not properly coordinated.

The builder ordinarily controls the site

During construction, the builder has obligations concerning safety, supervision, sequencing and the work. Homeowners should not assume they can enter the site or send other contractors onto it whenever they wish.

Read the access clause

Contracts commonly regulate owner access, inspections and third-party attendance. Follow the agreed process. Unauthorised access can create safety, insurance and contractual issues.

Your trades can affect programme

A contractor engaged directly by you may need to work within the builder's sequence. If that contractor is late, damages work or prevents another trade proceeding, the consequences may include delay and additional cost.

Define interfaces

Where work is split between builder and owner, document exactly where one scope stops and the other starts. Interfaces involving electrical, plumbing, waterproofing, cabinetry, appliances and finishes are particularly capable of generating disputes.

Warranties can become complicated

If work carried out by a trade you engaged directly is defective, the builder may say your contractor caused the problem while your contractor blames the builder’s work. Clear responsibility for each party’s work reduces this risk.

Safety and insurance apply to your trades too

A contractor you send to site must still comply with site safety requirements and should carry appropriate insurance. Confirm with the builder how your trade will be inducted, when they can attend and who bears risk if they cause damage or injury while on site.

Communicate through the builder

Avoid instructing the builder's subcontractors directly. Even a seemingly harmless request can become a disputed variation or create confusion about responsibility.

Questions to ask

Am I permitted to use my own trades? When can they access the site? Who coordinates them? Who bears delay if they are late? Who is responsible if their work is defective? What safety and insurance requirements apply to contractors I engage?

The key lesson

Owner involvement needs coordination, not improvisation. Preserve clear lines of responsibility throughout the build.

Before You Sign

This guide provides general educational information for South Australian homeowners. It is not personalised legal advice. The effect of any issue depends on the wording of your own contract, schedules, Special Conditions, plans, specifications and the facts of the project. A good builder and a well-understood contract should work together. Before committing to one of the largest financial transactions you may ever undertake, consider having the actual contract reviewed so you understand the obligations, notice requirements and consequences before they are tested on site.

Before You Build. One Signature. One Chance.