- Electrical & Power
- 5 min read
- MALCCO Team

Most problems on an electrical installation can be traced back to the start of the job: a brief that was incomplete, drawings that were not coordinated, or an expectation about testing that was never written down. A little time spent confirming the basics with your contractor before work starts saves far more time, cost and frustration later.
1. Define the load, and leave room to grow
Start with what the installation has to supply: the connected load, the expected demand, and the critical loads that must stay on. Then ask what spare capacity is being built in. Adding equipment, a new floor or extra cooling later is far easier when the incoming supply, distribution boards and cable routes were sized with some headroom.
2. Agree the drawings and specifications
The design information is the contract between what you want and what gets built. Before installation begins, make sure these are issued, reviewed and agreed.
3. Plan approvals and coordination early
Electrical work rarely stands alone. Supply connections and inspections involve the relevant authorities, and cable trays, panels and conduits share space with ducts, pipes and ELV systems. Resolving these clashes on drawings is cheap; resolving them above a finished ceiling is not. Confirm who is responsible for submissions, how long approvals typically take and how the trades will be coordinated on site.
4. Set the site safety rules
Electrical work carries real risk, to the people doing it and to the people who share the building. Agree how isolation and permits to work will be managed, that only competent, authorised personnel will carry out the work, what protective equipment is required, and how occupied areas will be protected during the works.
5. Specify quality, not just price
Two quotations for the same installation can differ widely because they assume different cable sizes, different protection devices or different materials. Ask for the make and rating of key components, how cables will be identified and labelled, and how the installation will be finished. Clear labelling alone makes future maintenance much safer and faster.
6. Insist on testing and a proper handover
An installation is not finished when the lights come on. Testing and commissioning confirm that it is safe and performs as designed, and the handover documents are what you will rely on for years afterwards.
Do not forget maintenance after handover
Electrical systems benefit from periodic inspection too. Tightening connections, checking for signs of overheating and keeping panels clean and labelled all help prevent faults, and a regular inspection routine is much easier to start from a well-documented installation.
The short version
Settle the load and spare capacity, agree coordinated drawings and specifications, plan approvals and site safety, specify quality, and require testing and complete handover documents. Doing this before the first cable is pulled is what keeps the project on track.
MALCCO's electrical team covers installation, wiring, lighting, distribution, panels, earthing, maintenance and upgrades. If you have a project at the planning stage, send us your drawings or specification through the Request a Quote page and we will review the scope.
