HV & LV Cable Route Civils Contractor: Utility Ducting & Reinstatement
LMC Utilities provides civil groundworks for HV and LV cable route installation, from trench excavation and duct laying to draw pit construction and full surface reinstatement. NERS accredited from LV to 132kV, with Lantra-qualified Street Works Supervisors on site.
Cable route civils is one of the most time-critical phases of any power infrastructure delivery, and one of the most common sources of defects, retentions, and programme delays. Poor trench work, inadequate bedding, and unsupervised reinstatement are avoidable failures. LMC Utilities’ supervision model is specifically designed to prevent them.
Comprehensive Civil Works
Cable route & ducting scope
LMC Utilities’ cable route and utility ducting capability covers
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HV cable trench excavation: LV, 11kV, 20kV, 33kV, 66kV, and 132kV cable routes
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LV cable route excavation, cable installation (laying and pulling), duct installation and reinstatement
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Duct laying and joint bay construction
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Draw pit construction
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Trench backfill and compaction to DNO specification
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Utility ducting for sub-site distribution
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Surface reinstatement: tarmac, block paving, concrete, specialist surfaces
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Road crossings: open cut and ducted methods
Authorised for HV. Experienced across LV. End to end
Street works, NRSWA & reinstatement
LMC Utilities holds NERS accreditation for cable laying and civils works from LV to 132kV, together with Achilles UVDB B2 accreditation. Both accreditations are current and provide pre-qualification assurance for DNOs, ICPs and principal contractors.
All surface reinstatement is carried out to highways authority and DNO specification. It is completed by the same crew that opened the trench, with supervision maintained throughout. Defective reinstatement is one of the most common causes of disputes and retentions on cable route packages. LMC Utilities’ approach eliminates that risk.
NERS & Achilles accreditation for cable route works
LMC Utilities is NERS accredited for cable laying across LV, 11kV, 20kV, 33kV, 66kV, and 132kV. On the Achilles UVDB network, LMC Utilities is registered specifically for underground cable laying from 1kV to 198kV. Both accreditations are current and can be confirmed on request by DNOs, ICPs, and principal contractors.
Who we work with
LMC Utilities delivers HV and LV cable route civils for DNO contractors on distribution network upgrades and new connections, ICPs managing contestable new connection packages, and principal contractors delivering EV charging and renewable energy infrastructure where HV cable route civils form part of the enabling works.
Working in live utility environments
LMC Utilities regularly undertakes civils and cable installation works within live substations and operational utility environments, working safely under the relevant DNO procedures, Safety Documents and site authorisations where required.
CAT & Genny scanning
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All excavation begins with Cable Avoidance Tool (CAT) and Signal Generator (Genny) scanning to locate underground utilities before any digging commences. LMC Utilities operates to Safely Digging Around Services guidance and maintains trained operatives on all cable route and utility trenching work.
Permit controlled excavations
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LMC Utilities operates within DNO permit control systems. Personnel hold authorisations to receive and clear Permits to Work (PTWR(b)-CP) and Limitations of Access (LOAR(b)-CP), and are authorised to sign onto Safety Documents relating to underground cable works (SDWP(c)-CP). Work within or adjacent to live substations and HV environments follows DNO safety document procedures throughout
Utility coordination and safe systems of work
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LMC Utilities coordinates with utility owners, DNOs, and ICPs across the full duration of excavation and reinstatement, managing apparatus identification, permit procedures, and safe systems of work to protect both operatives and existing infrastructure. SHEA Power trained personnel are deployed on all live utility site works.
FAQS
Frequently asked questions
What our clients say
LMC Utilities and their expertise ensured our ED2 EV Project was delivered on time, on budget and with unparalleled quality. The LMC Team are constantly achieving the high standard needed to work for a Tier 1 company, we at National Grid and excited to continue a strong relationship and look forward to future projects with LMC.
LMC Utilities have been a pleasure to work with across our EV projects. Their attention to detail, safety standards, and flexibility made sure the works were completed to the highest standard. We look forward to continuing our collaboration.
What LMC Utilities covers
LMC Utilities works across substation civils, HV/LV cable routes, DNO infrastructure, utility ducting, and renewable energy sites. Coverage is national, from the Midlands to the South, with growing capacity across the UK. EV charging infrastructure is part of the portfolio, delivered to the same standard as every other scope.
LV to 132kV, NERS accredited
Utility ducting & reinstatement
Solar farm & BESS substations
NERS accredited