Commercial Building
North London
TI’s intrusive electrical lifecycle survey that replaced a proposed £1.1M full switchgear rebuild with a targeted £150K remedial programme.
£1.1M vs £150K
The original scope, priced as a full capital replacement, against what our client actually invested.
Commercial Building
North London
Project Snapshot
59
Assets surveyed
23
Faults found, 5 critical
£150K
Total programme cost
3
Delivery phases
The Situation
Original infrastructure
This Building is a 130,000 sq ft Grade A office building running on its original 1970s–80s electrical infrastructure. Our client had already received a proposal for a full switchgear and transformer replacement, priced and scoped as a major capital project.
Our Approach
Condition, not age
Before committing, Our client asked us to look first. We opened every panel, tested every busbar connection, and catalogued 59 assets floor by floor — an intrusive survey a visual appraisal simply can’t replicate.
Five safety-critical faults
Identified through a full intrusive inspection, alongside a wider set of lower-priority improvements completed in the same programme.
A board wired straight onto the live 400A busbar with no fuse or isolator between them.
A disused board remained energised and connected to the live busbar.
A live busbar cover was held by just one of its four fixing screws.
A poorly terminated cable forced a main switch out of alignment.
Electrical Lifecycle Testing
Every TI survey follows the same four-stage method — evidence before decisions, decisions before capital.
1. Asset data review
What records actually exist.
2. Intrusive testing
Open, measure, evidence.
3. Condition report
Every item prioritised: Critical, High, Medium or Low.
4. Remedial works
Delivered against agreed priorities.
The Result
Stop replacing electrical infrastructure on a guess
