We provide Single Line Diagram or SLD drawing and PW4 endorsement services for management submissions involving shop, office and commercial premises renovation projects in Selangor and Kuala Lumpur.
📲 WhatsApp us for SLD drawing and PW4 endorsement services.
SLD Drawing and PW4 Endorsement Service
This service is suitable for renovation contractors, interior designers, electrical contractors, project coordinators and premises owners or tenants who are required to submit an SLD before electrical work can begin.
The service scope may include:
- Single Line Diagram drawing for the proposed electrical system.
- Total connected load calculation based on the equipment list.
- Proposed DB box and circuit distribution arrangement.
- Main switch and protective device information.
- Proposed cable sizes based on the circuit information.
- PW4 endorsement for projects within the relevant scope.
- SLD documents for submission to the building management.
The actual requirements depend on the type of premises, electrical supply capacity and submission checklist issued by the building management. More information about the drawing is available in our guide to Single Line Diagrams for shops and offices.
Documents Required
The client or contractor must provide complete project information before the drawing work can begin.
- Floor plan of the shop or office.
- Submission checklist from the building management.
- List of lights, sockets, aircond units and electrical equipment.
- Watt, ampere or kilowatt rating of each item.
- Photographs of the existing DB box or electrical panel.
- Main switch rating and type of electrical supply.
- Drawing format specified by the building management, if applicable.
Floor plan preparation is not included in this service. The client, renovation contractor or interior designer must provide a complete and clearly marked floor plan for use as the SLD reference.
📲 Need an SLD for management submission? WhatsApp us for a quotation.
SLD Drawing and PW4 Endorsement Price
The price depends on the type of premises, single-phase or three-phase system, number of circuits, equipment list, completeness of the floor plan and the building management submission requirements.
The floor plan, DB box photographs, equipment list and management checklist can be provided through WhatsApp to obtain an estimated quotation based on the project scope.
Scope of PW4 Endorsement
PW4 endorsement is only provided for projects that fall within the permitted competency limits. For a three-phase wireman’s scope, the installation must be a low-voltage installation of up to 60A and meet the building management requirements.
If the project capacity exceeds this limit or the building management requires a Professional Engineer’s endorsement, a PW4 endorsement alone will not be sufficient.
The endorsement of a proposed SLD is not confirmation that the electrical installation has been completed, supervised or tested. Form G, Form H, as-built drawings and certification of work that has not been inspected are not included in this service.
Registered Electrical Contractor
We provide SLD drawing and PW4 endorsement services according to the project information and the relevant competency scope.
- SLD drawings for shops and offices.
- Total load calculation based on the equipment list.
- Documents for building management submission.
- PW4 endorsement for suitable projects.
Electrical installation work should be carried out by an appropriate party under the control of a competent person. Learn more through our registered electrical contractor page.
Service Areas
SLD drawing and PW4 endorsement services are available for suitable projects in Shah Alam, Sungai Buloh, Gombak, Petaling Jaya, Subang Jaya, Puchong, Cheras, Ampang, Setapak, Rawang, Kepong, Kajang and other areas across Selangor and Kuala Lumpur.
For installation work or other electrical requirements, view our available electrical services.
Frequently Asked Questions
Who normally requires an SLD service?
This service is commonly required by renovation contractors, interior designers, electrical contractors and premises owners who need to submit electrical documents to the building management.
Is floor plan preparation included?
No. The client or contractor must provide a complete floor plan for use as the project reference.
Does a PW4 endorsement guarantee approval?
No. Approval remains subject to the building management or its appointed consultant and the submission requirements they have specified.
Can every project use a PW4 endorsement?
No. Suitability depends on the installation capacity, competency scope and management requirements. Projects requiring a PE endorsement are outside the scope of this service.
Need an SLD Drawing and PW4 Endorsement Service?
📲 WhatsApp us for SLD drawing and PW4 endorsement services in Selangor and Kuala Lumpur.