Six projects.
Delivered to spec.
From 33kV transformer bunds in rural substations to a £500K Tesla battery storage facility — every project delivered safely, on programme, and to DNO standards.
Radnor T1 & T3
Transformer Bund

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Construction of weight-bearing plinths and oil containment bunds for two 33kV transformers, including all excavations, reinforcing steel, formwork, and concrete pours. Bunds filled with engineered shingle and gravel layers to safely contain full transformer oil volume.
- Excavation to formation levels
- Reinforcing steel fixing & formwork
- Concrete pour to client standards
- HV & LV cable ducting & concrete encasement
- Oil containment layer system
Peterborough East
Grid Substation


Construction of a reinforced concrete raft foundation supporting an elevated switchroom at Flagship Park, Peterborough. Works integrated with the existing site earthing system and built to strict UK Power Networks quality, safety, and dimensional requirements.
- Service detection & controlled excavation
- Ground improvement & blinding layer
- Steel reinforcement installation
- High-strength structural concrete pour
- Earthing system integration
Honington Primary
Replace T1 & T2


Civil and structural works enabling the installation of new primary transformers at Honington Primary substation. Scope included precast fire protection blast walls providing a minimum 4-hour fire resistance rating, alongside full concrete bases, bunds, and plinths.
- Excavation & ground remediation
- Reinforced concrete transformer bases & bunds
- Precast fire protection walls (4-hr fire rated)
- Duct installation & oil containment
- Full area reinstatement
Wix Primary
Substation


Mezini Brothers' first deployment of FastBase pre-fabricated transformer bases at Wix Primary Substation, Colchester. This innovative low-carbon system drastically reduced on-site working time compared to traditional in-situ concrete, whilst meeting all DNO structural requirements.
- Pre-fabricated FastBase transformer bases
- Trenching & duct installation
- HV & LV cable pulls
- Substation compound enabling works
Chandos Road
Battery Storage


Working alongside JSM, Mezini Brothers provided all civil infrastructure for a new Tesla Megapack battery storage facility for EO Charging. The project encompassed demolition and site preparation through to final reinstatement, delivering a complete civil package over 10 months.
- Demolition & site preparation
- Cable trenches, ducting & cable pulls
- Reinforced concrete slab & pad foundations
- Surrounding walls & hoarding
- Backfills & resurfacing
Stirling Way
North Peterborough


A UKPN connection project supporting Morrisons Energy Services at Stirling Way, North Peterborough. Delivered over 4 weeks with 200LM of excavations, 500+ metres of ducting installation, and multiple structural concrete bases to support the network connection.
- 200LM of excavations
- 500M+ of ducting installation
- HV cable pulling
- Multiple structural concrete bases
Your project,
our expertise.


UK Wide
DNOs & Tier 1
