Commercial Electrical Installation
NAPIT Approved · SafeContractor Accredited

Commercial Electrical Installation Devizes, Calne & Melksham, Wiltshire

Offices, Retail & Warehouses — Devizes, Calne & Melksham

Complete commercial electrical installations across Wiltshire. Office fit-outs, shop wiring, warehouse power and network infrastructure. NAPIT approved.

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

Get Your Free Commercial Electrical Installation Quote

Tell us about your commercial electrical installation 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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Commercial Electrical Installation Services for Offices, Shops & Warehouses in Wiltshire

Invisiwire provides professional commercial electrical installation services across Wiltshire for offices, retail units, warehouses, schools and care homes. From new build fit-outs to refurbishments and expansions, our NAPIT approved electricians deliver safe, compliant and efficient electrical systems throughout Devizes, Calne, Melksham and beyond.

Every commercial installation we carry out is designed around your business needs. We plan power distribution, lighting schemes, data infrastructure and emergency systems to support your operations today and allow for future growth. All work meets BS7671 and Building Regulations standards with full certification.

We understand that commercial electrical work must not disrupt your business. Our team works flexible hours including evenings and weekends, and can phase installations to keep essential operations running. From small shop fit-outs to large warehouse complexes, we deliver on time and on budget.

Smart building controls and network infrastructure are increasingly essential for modern businesses. We install structured cabling alongside power circuits, ensuring your premises are fully connected and ready for the technology your business relies on.

How It Works

How Our Commercial Electrical Installation Works

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

1

Business Consultation

We visit your premises, understand your operations and design an electrical system that supports your business.

2

Design & Quotation

You receive detailed electrical plans, load calculations and a fixed-price quotation with a clear timeline.

3

Professional Installation

Our NAPIT approved electricians install power, lighting and data circuits safely with minimal business disruption.

4

Test, Certify & Hand Over

Every circuit is tested to BS7671 standards, certificates are issued and we demonstrate your new system.

What We Offer

Complete Commercial Electrical Installation Services Across Wiltshire

Office Electrical Fit-Out

Complete electrical installations for new and refurbished offices including power, lighting and data.

Retail Shop Wiring

Electrical installations for shops, boutiques and showrooms with display lighting and till points.

School & Care Home Electrics

Safe, compliant electrical installations for schools, nurseries, care homes and medical premises.

Warehouse Power & Lighting

High-bay lighting, power distribution and 3-phase supplies for warehouses and distribution centres.

Restaurant & Kitchen Electrics

Heavy-duty circuits for commercial kitchens, extraction systems and refrigeration in Wiltshire eateries.

Emergency Lighting

Battery-backed emergency and exit lighting installations to meet fire safety regulations.

Fire Alarm Circuits

Electrical infrastructure for fire detection and alarm systems in commercial premises.

External Commercial Power

Outdoor power for signage, car park lighting and external equipment at commercial premises.

Why Us

Why Wiltshire Businesses Trust Invisiwire for Commercial Installations

Commercial Specialists

We understand business priorities and install electrics that support productivity, safety and growth.

Flexible Scheduling

Evening, weekend and phased installations to keep your business running throughout the project.

Full Certification

BS7671 Electrical Installation Certificates and Building Regulations compliance on every project.

Energy-Efficient Design

LED lighting, smart controls and efficient circuit design to reduce your ongoing energy costs.

3-Phase Capable

Fully qualified for commercial 3-phase installations, distribution boards and heavy equipment.

Wiltshire Local

Based near Devizes, we serve commercial clients across all Wiltshire towns and business parks.

Get a Free Commercial Installation Quote

Professional commercial electrical installations with flexible scheduling. Free consultation and detailed quotation across Wiltshire.

Common Questions

Commercial Electrical Installation FAQs

It depends on premises size and complexity. A small office fit-out may take 3-5 days, while a large warehouse or multi-unit installation can take several weeks. We provide a detailed timeline in your quotation and work to minimise business disruption.
Yes. We regularly carry out commercial installations in the evenings, at weekends and during scheduled shutdowns. We plan the work in phases where needed so your business can continue operating throughout the project.
You receive a BS7671 Electrical Installation Certificate and a Part P Building Regulations Compliance Certificate. For larger projects we also provide test result schedules, as-fitted drawings and maintenance documentation.
Yes. We install the electrical infrastructure for emergency lighting, fire alarm systems and exit signs, ensuring compliance with fire safety regulations. We coordinate with fire alarm specialists where separate equipment is required.
Local Coverage

Areas We Cover for Commercial Electrical Installation

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, Calne & Melksham, Wiltshire