Electrical Design & Build
NAPIT Approved · SafeContractor Accredited

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.

NAPIT Approved
SafeContractor Accredited
Based in Wiltshire
Free Quotations
Fully Insured
Fast Response
Free Quotation · 24h Response

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Tell us about your electrical design & build requirements and our team will get back to you within 24 hours with a free, no-obligation quotation.

NAPIT Approved
SafeContractor
5-Star Rated
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Expert Service

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 It Works

How Our Electrical Design & Build Works

From your first call to completion, we make the process smooth, transparent and hassle-free.

1

Brief & Assessment

We review your project brief, site plans and requirements to understand the full scope of the electrical design.

2

Design & Specification

Our team produces detailed electrical designs, load calculations, single-line diagrams and specifications.

3

Build & Install

We install the complete electrical system using our experienced team, managing subcontractors where needed.

4

Commission & Handover

Systems are tested, commissioned and certified to BS7671 standards with full as-fitted documentation.

What We Offer

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 Us

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.

Common Questions

Electrical Design & Build FAQs — Project Questions

A design and build contract covers load analysis, electrical design, specification, installation, testing and commissioning, certification and handover documentation. You get a single contractor responsible for the complete electrical element of your project.
Yes. We regularly work as electrical subcontractors within larger construction teams, providing design input at planning stage, installation during build and certification at handover. We are experienced at working within multi-trade environments and project programmes.
Yes. 3-phase design and build is a core part of our industrial and commercial service. We handle DNO applications, distribution design, switchgear specification, installation and commissioning for 3-phase systems of all sizes.
Yes. As-fitted drawings are included in our design and build packages. These show the actual installed positions of circuits, outlets, distribution boards and main equipment, essential for future maintenance and modifications.
Yes. We design and install electrical infrastructure for smart building systems including smart lighting controls, energy monitoring, occupancy sensors and building management system integration.
Local Coverage

Areas We Cover for Electrical Design & Build

DevizesCalneMelkshamRowdeWestburyChippenhamTrowbridgeCorsham

Plus all surrounding villages in Wiltshire and Somerset.

Customer Reviews

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.”

Aaron Bassett
4 months ago · Google Review
Invisiwire van serving Wiltshire

Need a Trusted Electrician in Wiltshire?

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

Rowde, Devizes, Wiltshire