Broadband & fibre

Business broadband and fibre setup across Northern Ireland

JKL Electrix helps businesses get the speed they already pay for — testing the line, replacing underperforming ISP hardware and integrating the connection into a properly designed network.

Who broadband & fibre is for

Businesses that have upgraded their broadband and seen no difference, sites still running the router the ISP posted out, and anyone about to sign a new contract who wants impartial advice first.

Problems this solves

The commercial cost of getting this wrong.

These are the day-to-day symptoms JKL Electrix hears about most from businesses across Northern Ireland — buying more equipment rarely fixes them on its own.

Full-fibre speeds capped by an ageing ISP router
A flat default ISP setup with no VLANs or isolation
Wi-Fi blamed for what is actually a router problem
Speeds that look fine at 8am and collapse mid-service
No visibility of what's using the connection
One connection with no backup plan for outages

Survey and diagnosis

How the property is assessed first.

1Test the line directly at the router, wired, to see what the connection genuinely delivers.
2Compare that against what the contract says you pay for.
3Check whether the bottleneck is the line, the router, the switching or the Wi-Fi.
4Review the existing ISP configuration for defaults that are hurting performance.

What's included

Practical, right-sized broadband & fibre.

Testing of current speed and stability
Replacement of underperforming ISP routers where sensible
Proper firewall / router integrated with your network
VLANs for staff, guests, payment and CCTV traffic
Guidance on ISP or product choice where useful
Optional 4G/5G backup connection

JKL Electrix is not a broadband reseller — advice is impartial and based on what actually improves your site.

Testing, labelling and handover

Before-and-after speed figures recorded from the same test point.
Router and VLAN configuration documented and backed up.
Line details and ISP account references kept with the site documentation.

Service area: Business broadband and fibre work in Downpatrick, Newcastle, Castlewellan, Crossgar and across County Down and Northern Ireland.

Related project

Exterior of Mulholland's Bar and Off Sales, Castlewellan, at night

Hospitality · Castlewellan, Co. Down

Mulholland's Bar & Off Sales, Castlewellan — 30 Mbps to 300 Mbps

A full network upgrade across a two-storey venue covering a public bar, off sales and back-of-house. The ISP had left the site on a flat default network, capping throughput at around 30 Mbps.

Read the Castlewellan case study

Broadband & Fibre — common questions

We upgraded the line and nothing changed. Why?: Because the line is only the first link. At Mulholland's in Castlewellan the site was capped around 30 Mbps on a flat ISP default setup; after the switching and network were rebuilt it ran at 300 Mbps on the same building.
Should we replace the ISP router?: Only when it is the limiting factor. That is decided from measurements, not on principle — sometimes the supplied router is fine and the problem is further down the chain.
Do you sell broadband?: No. JKL Electrix is not a broadband reseller, so advice on providers and products is impartial and based on what improves your site.
What if our line genuinely is too slow?: Then that is said plainly, with the figures to show it, along with the realistic options — including 4G or 5G backup for sites with poor fixed-line service.

Not sure what your business needs?

Start with a Business Network Assessment — a paid, on-site review that gives you clear findings and a fixed-price quotation.

The full £199 fee is credited against qualifying installation work of £1,500 or more.

Book Assessment — £199