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Serving Devizes, Calne, Melksham, Rowde, Westbury, Chippenham, Trowbridge, Corsham, Bradford-on-Avon, Marlborough & Bath

Electrical Design & Build Wiltshire
Commercial & Industrial Projects — Devizes, Calne & Melksham
Professional electrical design and build services across Wiltshire. Complete electrical solutions from design to certification for commercial and industrial projects.
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Electrical Design & Build Services for Commercial & Industrial Projects in Wiltshire
Electrical Design & Build services provide a single point of responsibility for the complete electrical element of your commercial or industrial project. Invisiwire offers professional electrical design and build across Wiltshire, from initial load analysis and detailed electrical design through to full installation, testing and certification.
Our design and build service is ideal for new commercial premises, industrial unit fit-outs, office refurbishments and facility upgrades where a coordinated approach saves time, reduces errors and ensures compliance. We produce detailed single-line diagrams, load calculations and specifications before a single cable is installed.
By combining design and installation under one contract, you eliminate the risk of misinterpretation between designer and installer, streamline project management and benefit from a single warranty for the complete electrical package. We have delivered design and build projects for offices, factories, warehouses and retail units across Wiltshire.
Every design and build project includes full as-fitted documentation, test results, operation and maintenance manuals and BS7671 certification. We work with architects, main contractors and project managers as part of multi-trade teams, contributing to projects from planning through to handover.
How Our Electrical Design & Build Works
From your first call to completion, we make the process smooth, transparent and hassle-free.
Brief & Assessment
We review your project brief, site plans and requirements to understand the full scope of the electrical design.
Design & Specification
Our team produces detailed electrical designs, load calculations, single-line diagrams and specifications.
Build & Install
We install the complete electrical system using our experienced team, managing subcontractors where needed.
Commission & Handover
Systems are tested, commissioned and certified to BS7671 standards with full as-fitted documentation.
Electrical Design & Build Services Across Wiltshire
Electrical Load Analysis
Detailed assessment of electrical load requirements, diversity factors and future expansion needs.
Single-Line Diagrams
Professional single-line and schematic electrical diagrams for commercial and industrial projects.
Specification Writing
Detailed electrical specifications and schedules for tender and construction purposes.
New Build Electrics
Complete electrical design and installation for new commercial and industrial construction projects.
Refurbishment Electrics
Electrical design and build for office refurbishments, shop fits and industrial facility upgrades.
Energy Efficiency Design
Electrical designs incorporating LED lighting, smart controls and power management for efficiency.
Compliance Review
Review of existing electrical designs for compliance with BS7671 and relevant regulations.
Project Management
Full project management from design through installation to certification and handover documentation.
Why Wiltshire Businesses Choose Invisiwire for Electrical Design & Build
Design & Build Specialists
A single point of responsibility from design through installation and certification for seamless delivery.
Experienced Project Team
Our team has delivered design and build electrical projects for offices, factories and commercial spaces across Wiltshire.
Energy-Efficient Solutions
We incorporate LED lighting, smart controls and efficient distribution to minimise lifetime energy costs.
Full Compliance
Every design and installation meets BS7671, Building Regulations and relevant industry standards.
Complete Documentation
As-fitted drawings, test schedules, operation and maintenance manuals provided on project completion.
Wiltshire Project Experience
We have delivered commercial and industrial design and build projects throughout Wiltshire and Somerset.
Discuss Your Electrical Design & Build Project
Complete electrical design and build from survey to certification. Free initial consultation and detailed proposal across Wiltshire.
Electrical Design & Build FAQs — Project Questions
Areas We Cover for Electrical Design & Build
Plus all surrounding villages in Wiltshire and Somerset.
Related Industrial & Commercial Services
Industrial Electrical Installation
Complete electrical installations for factories and warehouses.
3 Phase Electrical
3-phase supply installation and maintenance.
Commercial Electrical Installation
Commercial fit-outs for offices, shops and warehouses.
LED Lighting Upgrade
Energy-efficient lighting design and installation.
Recent Electrical Projects
Browse some of our recent electrical work across Wiltshire homes, businesses and new builds.

Garden Lighting

Electrical Installation

Bathroom Electrics

Living Room Lighting

Bathroom Installation

Driveway Lighting

Exterior Lighting

Bathroom Lighting

Wiring Installation

Kitchen Electrics

Garden Power Supply

Porch Lighting

Garden Electrics

Domestic Rewiring
What Our Wiltshire Clients Say
Real reviews from real customers. Rated five stars on Google and Facebook by homeowners and businesses across Wiltshire and Somerset.
“Called up to ask about a fuse in the main fuse board as we went through a power tool cable and instead of coming out to look he very kindly talked us through finding a fuse along the route of the cable and we managed to swap it out and sort the issue, no stress, nothing to pay for his time over the phone! Couldn't ask for a better person.”

Need a Trusted Electrician in Wiltshire?
Covering Devizes, Calne, Melksham, Rowde, Westbury, Chippenham, Trowbridge, Corsham, Bradford-on-Avon, Marlborough & Bath.