Switching Business Internet Provider: The AMVIA Guide

Most business switches go wrong for the same two reasons: starting weeks before a contract ends instead of months, and assuming the changeover is automatic. It rarely is — especially when you are moving from business broadband up to fibre, or onto a business leased line. Below is the exact sequence we run for clients, the lead times to plan around, and the traps that cost businesses days offline.

Why do businesses switch internet provider?

Businesses change provider for four main reasons: a contract is expiring and there is room to cut costs, speed or reliability has become a daily frustration, the team has outgrown its connection, or an office move opens up better options at the new address. A switch is also the natural moment to upgrade the underlying technology, not just the supplier.

The most common upgrade paths are FTTC to FTTP, or FTTP to a dedicated leased line when uptime guarantees and symmetrical upload speeds start to matter. If your needs have moved on, a like-for-like swap to another cheap broadband deal is usually a false economy.

How do you check your current contract before switching?

Before you talk to any new provider, pull your current contract and confirm three things: the end date, the notice period, and any early termination charge. Miss the notice window and most providers auto-renew you for another full term, which can lock you in for two or three more years.

• Contract end date: most business internet contracts run for 24 or 36 months. Check the paperwork or call your provider.
• Notice period: most providers require 30 days' written notice before the end of the term; some leased line products require up to 90 days. Ofcom's rules on changing communications provider set the baseline protections here.
• Early termination charges (ETCs): leaving early usually costs the remaining monthly fees. On a leased line that can be substantial, so weigh the ETC against the savings before you commit.

Should you upgrade your connection when you switch?

A provider switch is the right moment to reassess whether your connection type still fits. If headcount, cloud usage or VoIP traffic have grown since you last signed, the question is not "who is cheaper" but "what does this business actually need for the next three years". Answer that first, then shop.

Ask yourself:

• Has the team grown significantly since the last contract?
• Have you moved core apps to the cloud, demanding far better upload speeds?
• Are you running VoIP and need lower, more consistent latency?
• Has full fibre, or a leased line, become available at your postcode since your last review?

If the answers point upward, read what a leased line is and how dedicated internet access differs from shared broadband before you decide. The table below sets out the practical trade-off.

How do you compare provider quotes?

Get pricing from several carriers for your postcode, then compare on more than headline rental. The UK business internet market is genuinely competitive, and a specialist broker can return quotes from all the major carriers in a single enquiry — which is the fastest way to see the real range for your address.

Compare like-for-like on:

• Monthly rental cost
• Installation and activation fees
• Contract length (typically 24 or 36 months)
• SLA terms — uptime guarantee and fault repair time
• Static IP inclusion
• Router supplied, or required separately

A cheap monthly price with a weak SLA and a long fix-time is not a saving — it is a downtime risk you have agreed to in writing.

When should you place the order?

Order early and order in parallel. Leased line installs typically take 30–60 working days, FTTP usually 2–4 weeks, and even a simple broadband transfer around 2 weeks. Starting at least 8–10 weeks before your current contract expires gives you a comfortable margin and avoids paying for two services for long.

For leased lines especially, the new circuit should be installed and tested before the old one is cancelled — never ordered at the same time as the cancellation notice. The overlap is what protects you from a gap in service.

How do you plan the migration window to avoid downtime?

Plan the actual cutover for your lowest-risk window: late on a Friday, over a weekend, during a quiet trading period, or in school holidays if your business is term-sensitive. For broadband, the switch is usually near-instant at activation; for leased lines, the new circuit runs alongside the old one and is tested before a planned switchover.

Downtime is not a minor inconvenience — it is a measurable cost. UK businesses lost £3.7 billion to internet outages alone in 2023 — up from £742 million in 2018, a fivefold increase in 5 years, reflecting growing dependence on digital infrastructure (Beaming research). That single figure is the whole case for installing and testing the new line before you drop the old one.

What happens to your static IP when you switch?

In almost all cases, you cannot keep your static IP. Static IP addresses are issued by, and belong to, the ISP — they are not portable between providers. If your current address is whitelisted with third-party services or used for VPN tunnels, you will get a new allocation from the incoming provider and must update everything that references the old one.

Before or immediately after the cutover, update IP whitelists, VPN configurations, firewall rules and DNS records. Our guide to why a static IP address matters explains where these dependencies usually hide. Missing one is the most common cause of "the internet works but our payment gateway / VPN / remote app doesn't" after a switch.

What about security when you change provider?

Changing connection means changing your network edge — new IP ranges, often a new router or firewall, and new rules to harden. Treat the switch as a security task, not just a procurement one. A new edge configured carelessly is an open door, which is exactly why a security-first provider should own the change end to end.

Disruption is expensive in every form. For context on scale, the average cost of recovery from a ransomware attack in the UK (excluding the ransom) runs to roughly $2.58 million, including downtime, lost opportunities, and device repairs (the source attributes this to UK Government data). The NCSC's Small Business Guide covers the basics of hardening your network after any change. Done properly, switching is a chance to tighten security, not loosen it.

What does AMVIA manage for you?

AMVIA handles the entire switch for business clients: comparing carriers, placing the order, managing installation, coordinating the migration window, and supporting you after go-live. For teams without in-house IT, that removes the burden of juggling provider relationships and technical cutover details. As your managed IT support partner, we treat connectivity, the network edge and security as one job — one provider, security-first, Microsoft-certified.