Sector — Data centres

Data Centre Construction

White space build and live upgrades with critical power and cooling, hot/cold aisle containment, structured cabling, BMS/EPMS, IST and clean commissioning for predictable handover.

Data centres — white space, critical power & cooling

We deliver new build halls and live upgrades with zero unplanned impact. White space fit-out is coordinated end-to-end with critical power (UPS, generators, switchgear, PDUs and busway), precision cooling, hot/cold aisle containment, structured cabling and resilient controls via BMS/EPMS.

Typical scopes include Tier III/IV aligned builds, LV/HV integration, battery rooms, CRAC/CRAH deployment, raised access floors, fire detection/suppression, secure pathways and full IST leading to clean, predictable handover.

Hot aisle containment in a clean white space data hall during fit-out, precision cooling units and cable trays under daylight LEDs

Critical power and cooling with BMS/EPMS visibility and IST for a clean, predictable handover.

Key features

Critical power integration

UPS, batteries, generators, LV/HV switchgear, PDUs and busway coordinated for resilience and maintainability.

Precision cooling & containment

CRAC/CRAH deployment with hot/cold aisle containment, airflow management and leak detection for stable operation.

Structured cabling & pathways

High-density fibre and copper, ladder racks and underfloor routes with segregated secure pathways.

BMS/EPMS visibility

Integrated monitoring and trending for power and environment, alarms and reporting aligned to site standards.

Live-estate upgrades

Methodical change windows, bypass and backfeed strategies, rollback plans and clean work fronts in live halls.

IST & clean commissioning

Factory/site testing through integrated systems testing with photographic QA, O&M and training for handover.

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Projects Delivered

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Live-Environment Shifts / Yr

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Sectors Served

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Years of Delivery
Programme Control Live Environment Phasing Integrated MEP Clean Commissioning Validation & Handover DFMA & Prefab Digital QA Evidence
Two-Stage D&B Red & Blue Routes Staged Changeovers HTM/HBN Compliance Commissioning Plans Soft Landings Golden Thread
Risk & Cost Clarity Gateways & Look-Aheads Hot-Aisle Containment Cleanrooms & Sealed Zones QA & Sign-Off Zero-Defect Handover Assurance & Validation
Data Halls & Plantrooms Lab Fit-Out Education Estates Commercial Offices Industrial & Logistics Regeneration & Mixed Use Transport & Aviation


Why choose us

Trusted construction partner for complex delivery

Programme control

Two-stage planning, gateways, risk logs and weekly look-aheads that keep dates predictable and stakeholders aligned.

Live environment expertise

Phasing, red and blue routes, sealed zones and night windows so buildings stay operational without unplanned downtime.

Integrated MEP

Early coordination, prefab where viable, staged changeovers and rollback plans that protect services during cutover.

Clean commissioning & validation

ITPs and hold points, flushing and balancing, IST and vendor sign-off. HTM/HBN for healthcare and Tier-readiness for data halls.

Digital QA & golden thread

Photo evidence, inspections, product data and change control captured to produce clear O&M packs and Building Safety Act gateways.

Safety first

RAMS and permits, CDM duties, environmental controls and third-party audits. We aim for zero incidents and zero rework.

Delivery assurance

Peace of mind on complex builds Peace of mind on complex builds

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Client photo 1 Client photo 2 Client photo 3
180
projects delivered

From preconstruction to clean handover we plan risks early, coordinate MEP with precision and capture digital QA evidence so your programme stays predictable and compliant. We set out clear gateways, publish weekly look-aheads and risk logs so nothing drifts. Staged changeovers, clean commissioning and soft landings give you a smooth, defect-free handover.

25

Years of delivery
Project planners reviewing drawings on a live construction site at golden hour with cranes and steel frame
Construction delivery process with cranes, steel frame and golden-hour light
Our Process

Clear steps to a clean handover

Preconstruction brief

Scope, gateways and programme outline with risks and cost assumptions set out early.

Design & procurement

Coordinated design, CDP, and long-lead items locked to protect the critical path.

Construction & phasing

Live-environment controls, integrated MEP install and weekly look-aheads on site.

Commissioning & handover

ITPs, witness tests and digital QA packs delivered to a clean, defect-free handover.

FAQ

Everything you should know about Construction

  • Construction
  • What types of projects do you deliver?
    New build, refurbishment and fit-out across education, commercial offices, industrial and logistics, life sciences and data centres with programme-led delivery and integrated trades.
    How do you keep programmes predictable?
    Two-stage planning with gateways, look-ahead schedules, risk and issue logs, and weekly progress reviews. Early procurement of long-lead items and clear change control prevent drift.
    How do you work in live or occupied buildings?
    Phasing and decant plans, out-of-hours windows, red and blue routes, dust and noise controls, compliant hoardings, permits to work and daily briefings so operations continue safely.
    Do you support preconstruction and design?
    Yes. Feasibility, surveys, cost planning, value engineering and buildability reviews with clear assumptions and constraints. We coordinate design to de-risk site delivery.
    How do you manage quality and handover?
    ITPs and hold points, digital QA evidence with photos and certificates, progressive snag closure, commissioning plans and soft landings. Complete O&M packs for a clean handover.
    Which procurement routes do you work under?
    Two-stage and single-stage D&B, traditional, and PCSA arrangements. We also deliver through client frameworks where required with open-book options available.
    How do you manage health, safety and environment?
    CDM compliance, RAMS and permits, inductions and daily briefings, temporary works control, environmental protection and independent audits. We target zero incidents and zero rework.
    Do you use prefabrication or DFMA?
    Yes where it adds value. We assess skids, risers and modular elements during preconstruction to improve quality, reduce time on site and minimise disruption in live environments.
    How do you handle cost control and changes?
    Baseline cost plans with tracked assumptions, live change registers, priced options and approvals before issue. Forecasts are updated with each gateway so budgets stay under control.
    What support do we get after completion?
    Training and soft landings, defects response with clear SLAs, seasonal commissioning if needed, and retained records to maintain the golden thread for the asset lifecycle.

Ready to plan your project?

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Our Services & Sectors
Contact Us
+44 800 888 6801
Unit B, 2a Farnes Drive, Romford, England, RM2 6NS, GB
info@wellmens.co.uk
About Wellmens

Wellmens delivers complex projects in live, critical environments. From HTM/HBN-aware healthcare works to programme-led construction and integrated MEP, we combine consultancy, rigorous QA and clean commissioning to hand over with certainty.