
Testing, inspection, EICR certifications, and installation services tailored to your property and budget.
McDonnell Shields provides testing, inspection, and installation services tailored to landlords, commercial properties, and domestic clients across Northern Ireland.

Comprehensive electrical safety inspection and certification for rental properties and commercial buildings.

New wiring, circuits, and systems installed to current standards for homes, rental properties, and commercial spaces.

Thorough electrical system inspections to identify faults, safety risks, and maintenance needs before they become problems.

All electrical services for home improvement, rewiring, safety upgrades, and new installations in properties.

Specialised solutions for commercial properties, including larger installations, compliance testing, and ongoing maintenance.

EICR certifications, safety testing, and documentation to meet rental property regulations and protect your tenants.
Real feedback from landlords, commercial businesses, and homeowners who've trusted McDonnell Shields with their electrical work.
McDonnell Shields handled our rental property EICR certification quickly and professionally. Clear communication throughout, and they explained everything in plain English. Highly recommend for landlords.

James Patterson
Property Manager, Landlord
Our commercial office needed a complete rewire. The team was efficient, minimized downtime, and the installation quality is excellent. Fair pricing and no hidden surprises. They're our go-to electricians now.

Sarah Mitchell
Operations Manager, Commercial Business
Needed urgent rewiring in our kitchen after a burnt-out circuit board. McDonnell Shields responded quickly, diagnosed the problem accurately, and fixed it the same day. Professional and reassuring from start to finish.

Michael O'Brien
Homeowner, Killyleagh
We own two commercial properties and trust McDonnell Shields with all our electrical maintenance and testing. Reliable, punctual, and they always explain what they're doing. Great to work with.

Emma Clarke
Commercial Property Owner
Our new kitchen installation required electrical work we weren't confident doing ourselves. McDonnell Shields made it simple, safe, and affordable. They knew exactly what was needed. Would call them again in a heartbeat.

David and Louise Hughes
Homeowners, Downpatrick
EICR testing for our flat was straightforward. McDonnell Shields provided a clear report, answered all our questions, and we got our certification without fuss. Recommended by our letting agent.

Rachel Foster
Flat Owner, Lettings Portfolio
We deliver reliable testing, inspection, and installation work that landlords and businesses depend on.
100%
EICR compliance focus
Every inspection and test meets current regulations for landlord and commercial safety standards.
Domestic + Commercial
Full service range
We handle residential properties, rental units, and commercial installations with the same attention to detail.
Fast turnaround
Local service
Based in Downpatrick, we respond quickly to testing, inspection, and installation requests across Northern Ireland.
Certified work
Professional standards
All electrical work meets building regulations and industry best practices for safety and performance.
Fixed rates for testing, inspection, and installation work. No hidden costs, no surprises.
Electrical Installation Condition Report for landlords and property managers. Includes full inspection and detailed certification.
From £160
per propertyDomestic and commercial electrical installation. New circuits, rewiring, upgrades, and alterations. Cost varies by scope.
From £250
per jobRegular electrical safety checks for existing installations. Recommended every 5 years for domestic, 3 for commercial.
From £160
per propertyCall 07462888776 or email Joe@mcdonnellshields.com to book your service in Northern Ireland.