A
Assessment
Review existing board, supply and outgoing circuits.
Commercial distribution
Distribution board upgrades in London
Assessment, replacement and alteration of suitable commercial and light industrial distribution boards with protection, circuit data and testing considered together.
Service overview
A distribution-board change must account for the whole connected installation.
Board selection depends on supply characteristics, prospective fault current, protective devices, circuit loading, discrimination, environment and available space.
Bastian Electrical can assess and deliver suitable smaller distribution-board upgrades and defined circuit alterations where the design information and project scale are manageable.
Pre-change testing helps identify circuit defects and labelling problems that could otherwise appear during the shutdown.
Complex protection studies, major switchgear, high fault levels or large multi-board projects may require specialist design and a larger contractor team.
No-obligation enquiry
Ask about this service
Send the basic details. James will review the scope and contact you about availability and the next step.
What the service can include
Defined board and distribution work for suitable sites.
The final scope is agreed after the existing installation and your requirements are reviewed.
P
Protection
Select suitable protective devices for the agreed design.
C
Circuit changes
Add or alter defined outgoing circuits.
L
Labelling
Clear schedules, identifiers and warning labels.
T
Testing
Verification of connected circuits and new work.
H
Handover
Agreed records, schedules and electrical documentation.
Planning the work
What is checked before work begins.
- Supply type and fault-current information.
- Existing circuit schedule and load data.
- Shutdown and operational requirements.
- Space, enclosure and environmental conditions.
- Upstream and downstream protective devices.
- Design, testing and documentation responsibilities.
Your quotation
What can affect the price?
- Board type and device count.
- Unknown or poorly identified circuits.
- Shutdown duration and working hours.
- Containment and cable modifications.
- Faults identified during pre-testing.
- Design and specialist study requirements.
A clear written quotation is provided once the scope can be priced reliably. Diagnostic work may be charged separately where the fault cannot be identified in advance.
See domestic price examplesHow it works
A clear route from enquiry to completion.
Share the details
Send the property type, postcode, symptoms or required work, and useful photos.
Assess the scope
The existing installation, access and likely testing requirements are reviewed.
Confirm the basis
A quotation, site survey or diagnostic visit is agreed before work starts.
Complete and check
Work is carried out carefully, then relevant checks and documentation are completed.
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Three-phase circuits and supply alterations.
View serviceElectrical testing
Pre-change assessment and condition information.
View service
Helpful answers
Questions about this service
Can a commercial board be changed without pre-testing?
Pre-testing is strongly useful because faults or unidentified circuits can disrupt the planned change.
How long will the power be off?
This depends on board size, circuit condition and work sequence. A realistic shutdown window is agreed.
Can new circuits be added at the same time?
Yes, where included in the design, capacity and quotation.
Do you provide a circuit schedule?
Clear labelling and an agreed schedule are part of a professional board upgrade.
Can you work on large switchgear?
Large or specialist switchgear may require a dedicated specialist and larger team. The enquiry will be assessed honestly.
Will all old circuit problems be fixed?
Only defined remedials are included. Unexpected defects are explained and agreed before additional work.
Need help with distribution board upgrades?
Send the job details and postcode for practical advice and a free quotation.