Starlink for business: primary or failover?

Why businesses use Starlink at all

Three things have made Starlink genuinely useful for commercial sites:

• Speed. Typical real-world download is 100–250 Mbps, with upload of 10–30 Mbps. Comparable with standard FTTP for most workloads.
• Latency. Around 30–50 ms in normal conditions. Good enough for voice calls, video conferencing and most cloud applications. A few years ago this was the killer objection to satellite — it is no longer the limiter.
• Independence from the ground network. A Starlink connection does not depend on local fibre, copper or 4G infrastructure. If a contractor cuts the village fibre, your Starlink stays up.

Starlink as a primary business connection

The right call when:

• No fibre, no useful 4G. Off-grid premises — farms, rural workshops, holiday parks past the reach of fibre and where 4G signal is too weak. Starlink is often the only realistic business connection.
• Temporary or seasonal sites. Construction sites, pop-up offices, events. The kit is portable, the install is quick, the monthly cost is predictable.
• Speed of install matters more than price. A Starlink dish can be live within days. A new fibre install can take weeks or months. If you need internet at a site fast, Starlink wins.

Where it is the wrong call: dense urban sites where solid FTTP is available. Starlink is competitive on speed but typically costs more per month than equivalent FTTP, with no SLA backing it up.

Starlink as failover

This is where Starlink really shines for businesses that already have fibre. Two reasons:

• True diversity. 4G failover SIMs share underlying infrastructure with the local mobile network. If a regional carrier has an outage, your "backup" goes down with the primary in the same incident. Starlink runs on completely independent satellite infrastructure — when the ground network has a bad day, you stay online.
• Equivalent speed on failover. A 4G failover SIM typically gives you 30–80 Mbps. Starlink gives you 100+ Mbps. For businesses with heavy upload requirements or hosted VoIP, the failover speed actually matters.

The right call for: retail with card-payment infrastructure, professional services running cloud-based case management, healthcare-adjacent businesses, anywhere with hosted VoIP that needs to stay reachable. Particularly attractive on rural sites where the local fibre is on a single route through the valley — one excavator can take it out.

Costs and contracts

Starlink offers separate residential and business plans. The business plan is more expensive but ships with priority service (higher peak performance), higher data allowances, and faster support — appropriate for a commercial use case.

Hardware is a one-off cost — the dish, router and mount kit. Monthly fees run materially higher than residential broadband but typically much less than a leased line.

Contracts are usually 12 months on the business plan. No long lock-in like fibre — useful if you are testing the kit in failover mode for a few quarters before committing.

Install considerations

Starlink installation for a business site is more involved than residential. We typically:

• Survey the roofline for clear sky — Starlink needs an unobstructed field of view above ~25°. Trees, neighbouring buildings and hillsides need checking.
• Mount the dish on a non-penetrating roof mount or a wall-mounted pole — the position is dictated by the survey, not by where the cable run is easiest.
• Run weatherproof cable from the dish to the router, with proper grommets, drip loops and surge protection.
• Configure the router and integrate with the existing business network — VLAN segregation, firewall rules, failover routing if it is sitting alongside fibre.

Most business installs are a half-day to a day on-site. See our business Starlink installation page for the full process.

Multi-site rollouts

For businesses with multiple branches — holiday parks, hospitality chains, multi-site agriculture — we standardise the Starlink kit and install pattern across all sites so you have one supplier, one billing setup, one number to call when something needs attention. Easier to manage than mixing primary connections from local suppliers.

When Starlink is NOT the right answer

• You have solid FTTP already and want a cheaper backup — a 4G SIM at £20/mo is cheaper than Starlink at £75+, and for many businesses 4G is enough.
• You need genuine carrier-grade SLAs with credit-back — Starlink does not currently offer business SLAs comparable to a fibre leased line.
• Your site has poor sky visibility — wooded valley floors, properties under overhanging hills. We check before quoting.

What we do at Cader Networks

We install Starlink for business sites across Wales — survey, mount, weatherproof cable run, router integration, ongoing support. Whether the use case is primary connectivity for an off-grid premises or genuine failover diversity for a fibre-connected site. See our business Starlink installation page, or for residential installs see Starlink installation in Wales.