Critical power: installed live, tested, and proven.
UPS, DC power, switchgear and generators — installed and proven in the environments that can least afford to notice.
- 22,000+
- sq ft secure facility
- UK & Europe
- delivery, including Nordic projects
- Up to 10MW
- load bank test capacity
- 4
- industry accreditations held
Mission
We keep critical power running in the environments that can least afford to notice — UPS, DC power, switchgear and generator work, installed and proven live, with the protected load never going down.
Vision
To be the contractor data centre and enterprise operators call first when downtime isn't an option — proven across the UK and Europe, including hyperscale and colocation sites.
Where we work
UK & Europe delivery, including Nordic data centre projects.
UK & Ireland
London
Colocation
2×500kVA UPS replacement
1,000kVA · 2023
Slough
Colocation
ATS replacement, live load
800A · 2023
Hemel Hempstead
Enterprise HQ
DC power & battery replacement
240kVA · 2024
Manchester
Colocation
Generator integration & load bank proving
1.2MVA · 2024
Continental Europe
Zurich
Financial services DC
UPS revalidation programme
600kVA · 2024
Scandinavia
Oslo / Norway region
Hyperscale
Switchgear works, phased migration
2MVA · 2025
Iberia
Madrid
Colocation
Load bank testing & thermal survey
1MW · 2025
What we do
Eight core capabilities, one absolute focus: uninterruptible critical power.
Why choose us
Five reasons operators come back.
- Talk to the people doing the job — no corporate layers between you and the decision-makers.
- Load bank testing under our own management — proving happens on our schedule.
- Accredited and checked — CHAS Elite, SafeContractor, NICEIC, JIB.
- Your plant is secure — 22,000+ sq ft facility, 24hr monitored.
- Already trusted in live environments — UK & Ireland, Nordic, Iberian and Swiss critical-power projects delivered.
The problem
When UPS, switchgear or generator plant needs replacing in a live data centre or critical facility, one mistake can take the protected load down. Most contractors either can't work in a live environment safely, don't own the test equipment to prove the job's done properly, or bury decisions in layers of sign-off — costing you time and resources.
Our answer
Aspect Electrical replaces and upgrades critical power infrastructure inside live environments, using a fixed method — survey and design, RAMS sign-off, permit-controlled works, full testing and certification, then documented handover — backed by our own load bank capacity and a secure facility built to stage and move plant safely. The load stays live. The job gets proven, not just promised.
The fixed method behind that answer, step by step, is below.
How we deliver
A method built for environments that cannot go down.
Survey & design
Site survey, load study and method of works agreed before a cable is touched.
Method statements & RAMS
Task-specific RAMS reviewed and signed off ahead of any live work.
Controlled works in live environments
Permit-controlled installation with the protected load running throughout.
Testing & certification
Full functional, transfer and load-bank proving, documented and certified.
Duty-of-care handover
As-built documentation, certification and handover briefing to the client team.
Core values
Five things we won't trade.
Discipline
Live-Environment Discipline
Survey, RAMS and permit control before a cable is touched.
Accountability
Direct Accountability
The people running the business make the decisions, not a chain of sign-off, achieving faster results.
Proof
Test what you claim
Up to 10MW of load bank test capacity under our own management, so proving performance is never delayed.
Integrity
Held to standard
CHAS Elite, SafeContractor, NICEIC and JIB accredited, checked, not just claimed.
Security
Secure custody of your plant
22,000+ sq ft facility, 24hr security and CCTV, from delivery to install.
The facility
22,000+ sq ft, built for plant, not paperwork.
Secure storage, 24hr security and CCTV, and the space to stage and move heavy plant without it ever touching a client site before it's ready.
- 22,000+ sq ft secure facility
- 24hr security & CCTV
- Storage & plant movement
Why Aspect
Independently accredited. Directly managed.
Aspect Electrical is held to the same standards as the tier-1 contractors we work alongside.
Aspect Electrical Critical Power Services (AECPS) is a trading style of Aspect Electrical Ltd, registered in England No. 04777645. Registered Office: 273-275 High Street, London Colney, AL2 1HA.
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