A speed tier does not describe the whole purchase. Address-specific availability, upload needs, support, contract terms and recovery plans can change which offer fits. This guide gives you a practical way to compare those details in writing.
Connection types, explained honestly
Most of the confusion in business internet comes from providers describing very different products with the same vocabulary. Here is what the main options actually are.
Fiber
Fiber can support high-capacity service, but upload speed, committed bandwidth, support and service-level terms depend on the specific offer. Confirm whether the building is already served. A new build may require construction, permits or building-owner approval; get the proposed installation date and any construction charges in writing.
Cable
Business cable commonly uses coaxial access with more download than upload capacity. Available speeds, congestion, support and contract terms vary by supplier and address. Compare a written cable offer against your busiest-hour use and recovery needs; it may be entirely suitable for an office or branch.
Fixed wireless and LTE/5G
Fixed wireless connects over a radio link; LTE/5G uses a mobile network. Either may serve as a primary, temporary or backup option when the supplier confirms coverage and a workable installation. Ask about signal testing, equipment, data terms and the installation date at your address. Do not assume a wireless path is independent of the wired primary without checking the design.
DIA vs. best-effort: the distinction that matters most
Dedicated internet access (DIA) and best-effort service can differ in capacity commitments, contention, support and service-level terms. The label alone does not tell you what will happen at your site. Ask each supplier to state its committed upload and download rates, repair process, SLA exclusions and remedies in the written offer. Compare those terms and the full contract cost against the impact of disruption on your operation. Best-effort may be the right choice when the extra commitments do not solve a material need.
Sizing bandwidth for your actual operations
The wrong way to size bandwidth is to pick the tier whose number feels safe. The right way is to look at what your team actually does. Start with the applications: cloud suites, video conferencing, VoIP, file transfer, backups, point-of-sale. Then count concurrent users, not employees — what matters is how many people lean on the connection at the same time on your busiest day.
Check upload as well as download: video calls, cloud backups and voice traffic all use upstream capacity. Consider expected growth, but ask whether the proposed contract lets you change capacity if needs shift. The useful number is a requirement tied to your applications and busiest periods, not an oversized tier chosen for reassurance.
Contract terms that bite
The contract is where good connections go bad. Four clauses deserve your attention before anything gets signed.
Auto-renewal. Some business internet contracts renew automatically unless you give notice within a defined window. The consequences of missing it depend on your agreement. Find the clause, confirm the notice method and deadline, and put the date somewhere an owner will see it.
Term length. Compare the full-term price with the flexibility you give up. Ask what happens if you move, close or change capacity, and price any early-exit terms before choosing a longer commitment.
Install windows. The gap between signing and a working connection is a real operational risk, especially for fiber builds. Get the install estimate in writing, ask what happens if construction is required, who pays for it, and what your options are if the date slips. A temporary connection may bridge the gap if its coverage, capacity and setup date are confirmed for the site.
SLAs. A service-level agreement is only as good as its remedies. Read what uptime is actually committed, how credits are calculated, and — critically — whether you must open a ticket and claim the credit yourself. Record who opens a ticket and who follows through on any remedy.
Failover: planning for the bad day
A backup connection can reduce downtime when the primary fails, but switchover behavior depends on the equipment and configuration. Ask how the supplier will test failover and whether the two services share a physical route, building entry, power dependency or upstream network. Wireless can be an option; its independence and site coverage still need confirmation.
Estimate the effect of an outage on transactions, staff and calls, then compare that with the full cost and tested recovery behavior of a backup. A site that can work offline may decide against one; a site with critical online systems may prioritize it. Document the assumption behind either decision.
The 10-point buying checklist
- 01Confirm what is actually available at your address — not what a provider advertises regionally. Availability is address-specific.
- 02Decide whether you need dedicated or best-effort service based on what downtime and congestion cost your operation.
- 03Size bandwidth from how your team actually works — cloud apps, video calls, file sizes, headcount — not from a generic tier.
- 04Check upload speed, not just download. Cloud backups, video calls, and VoIP lean on upload far more than browsing does.
- 05Read the auto-renewal clause: how long is the renewal term, and how much notice must you give to avoid it?
- 06Weigh the term-length tradeoff deliberately — what the longer commitment gets you versus the flexibility you give up.
- 07Get the install window in writing, and ask what happens (and who pays) if construction or building access is required.
- 08Read the SLA for what it actually promises: the uptime commitment, how outage credits work, and what you must do to claim them.
- 09Plan failover for any site that cannot afford to be offline — ideally on a different network path or technology than the primary.
- 10Confirm whether the quoted price is promotional or ongoing, and what the rate becomes after any promotional period ends.
Comparing written offers? Use the renewal review worksheet (CSV) to record terms, charges, service requirements and details that still need supplier confirmation.
Mistakes to avoid
Buying on headline speed alone
A bigger number is not automatically a better connection. Upload speed, latency, contention, and the service-level commitment often matter more to how the connection feels in daily use than the download figure on the order form.
Letting the lease get signed before checking connectivity
Connectivity is address-specific. Check serviceability and any building work before committing to an opening date. A fiber build can add approval, construction and cost questions that belong in the location plan.
Treating the SLA as decoration
An SLA only helps if you understand what it commits the provider to and what you have to do to claim a remedy. Many buyers discover what their SLA actually covers during their first serious outage, which is the worst possible time.
Ignoring the contract end date
The agreement may require notice by a specific date and method. Record those terms and confirm them with the incumbent before assuming a renewal or cancellation outcome.
Skipping failover because the primary "has been fine"
Estimate the impact of a realistic outage and compare it with a documented backup design, its monthly cost and recovery behavior. The right answer depends on the site and the systems it supports.
When to bring in a procurement desk
You can run everything in this guide yourself, and for a single straightforward site, you probably should. A procurement desk starts to earn its place when the comparison gets wide or the stakes get high: multiple locations on different contracts, a move or new site on a deadline, a renewal where you suspect the pricing has drifted, or a failover design you want a second opinion on.
Our desk helps document the brief, request comparable supplier options where available and review the written terms with you. Staying with the incumbent remains a valid outcome. If that would be useful, you can read how we source business internet or start a review with the form below.