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Gradwell Reviews 2026: VoIP, Business Mobile and Alternatives

Gradwell Reviews 2026: VoIP, Business Mobile and Alternatives

They Built Their Own VoIP Platform. That Is Both Their Strength and Their Risk.

Gradwell is not like most VoIP providers. While the majority of UK business telecoms companies resell someone else's technology, Gradwell built their own platform from scratch. It is called Wave, and it powers their entire hosted VoIP offering.

That is impressive. Building and maintaining your own voice platform requires serious engineering investment. It means Gradwell controls the features, the reliability, the update cycle, everything. When there is a bug, they fix it directly. When customers request a feature, Gradwell's own developers build it. There is no middleman, no waiting for a third-party vendor to prioritise your issue.

But there is a flip side. When you choose Gradwell, you are choosing Wave. Your entire phone system runs on their proprietary platform. If Wave works brilliantly for your business, great. But if you outgrow it, or if your needs change, or if a competing platform offers something Wave does not, switching means changing everything. You cannot just move your VoIP to a different platform and keep the rest of your Gradwell setup. It is Wave or nothing.

This is the fundamental trade-off of any proprietary platform, and it is worth understanding before you commit. A single provider controlling everything is powerful when it works. It is limiting when it does not.

Based on our experience helping over 2,000 businesses with their telecoms since 2008, we hear from Gradwell customers in two distinct situations. The first group is happy with Wave for VoIP but needs better business mobile deals. The second group has outgrown Wave and wants to compare the full VoIP market before their contract renews.

We are not here to tell you Gradwell is bad. Wave is a solid platform with a proven track record. We are here to help with the bits Gradwell does not do well (mobiles), and to give you a benchmark for the bits it does (VoIP).

We are Compare The Networks, an independent, OFCOM-regulated comparison service rated 4.3/5 on Trustpilot from over 1,000 reviews. We compare EE, Vodafone, O2 and Three for business mobiles and help businesses benchmark their VoIP setup against the wider market. Completely free.

Who Gradwell Is and What They Actually Do Best

Gradwell has been operating from Bath, Somerset since 1998. That is over 25 years in business telecoms, which makes them one of the longer-established VoIP providers in the UK. In an industry where providers appear and disappear regularly, longevity matters.

Their product range includes:

  • Hosted VoIP (Wave platform) with call routing, auto-attendant, call recording, voicemail-to-email and softphone apps
  • SIP trunking for businesses keeping existing PBX hardware
  • Business broadband including fibre, FTTP and leased lines
  • Business mobile deals (a secondary offering, not their focus)
  • Unified communications through the Wave platform
  • Number porting and virtual numbers for UK geographic and non-geographic numbers

The Wave platform is the centrepiece. Everything else is built around it or offered alongside it. When Gradwell says they are a VoIP company, they mean it. The mobile and broadband offerings are complementary, not core.

What We Hear About Gradwell: The Good and The Gaps

Where Wave Delivers

Reliability is excellent. Wave has a strong uptime record, and businesses that depend on their phones being available 100% of the time report consistent quality. For a smaller provider, this suggests robust infrastructure underneath the platform.

Gradwell controls the platform. When bugs appear, they get fixed by the team that built the system. When features are requested, the development is done in-house. This is faster and more responsive than providers who depend on third-party vendors for their underlying technology.

UK support that actually helps. Gradwell's support team is based in the UK and genuinely understands the platform they are supporting. Customers consistently praise the quality of technical support, which is a significant differentiator in an industry where offshore call centres are common.

25 years of stability. In a market where providers merge, get acquired, or shut down regularly, Gradwell's longevity is reassuring. They have survived multiple industry transitions and are still independently operating.

Good migration support. Number porting and system setup are handled well, with clear communication during the transition.

Where Gradwell Hits Its Limits

Business mobiles are not their thing. This comes up repeatedly. Gradwell offers mobile deals, but it is not their core product and the deals are typically less competitive than what you would get from a dedicated mobile comparison. Based on our experience, businesses that compare their Gradwell mobile deal against the full market from EE, Vodafone, O2 and Three typically find significantly better options.

The Wave ecosystem means commitment. Choosing Gradwell means choosing Wave. If you later decide you need a different VoIP platform (perhaps one with better CRM integration, or better video conferencing, or lower per-seat pricing), you are looking at a complete migration. There is no easy way to swap just the VoIP component while keeping other Gradwell services.

Pricing can be higher than the competition. The own-platform approach and UK support come at a cost. Some businesses report that Gradwell's per-user pricing is above the market average for comparable VoIP features. The VoIP market has become fiercely competitive, and platforms that were good value three years ago may not be today.

Larger businesses can outgrow it. Wave works well for small to medium businesses. Once you get beyond 50 users and start needing advanced call centre features, deep CRM integrations, or enterprise-grade analytics, the platform can start feeling limited.

Broadband is a side offering. Like mobiles, broadband is offered for convenience rather than as a core product. Specialist broadband providers often offer better deals at specific premises.

The Ecosystem Lock-In Question

This deserves its own discussion because it is the most important strategic consideration when choosing Gradwell.

When you build your phone system on Wave, your call routing, your auto-attendant, your call recordings, your virtual numbers, your entire voice infrastructure runs on Gradwell's proprietary platform. If you want to leave, you have to migrate everything to a new platform. That is a project, not a phone call.

Compare this to the flexibility of choosing independently. If you use a non-proprietary VoIP solution, switching VoIP providers is straightforward. Numbers port across, features are configured on the new platform, and you are done. If you compare mobiles through us and switch networks, the process is similarly clean.

The question is whether the advantages of Wave (control, reliability, integrated support) outweigh the risk of ecosystem lock-in. For many businesses, they do. But it is a question worth asking before you sign, not after.

The Best Approach for Gradwell Customers: Separate What Works From What Does Not

Many Gradwell customers do not need to leave Gradwell entirely. They need to separate the services where Gradwell excels from the ones where it does not.

Keep Wave for VoIP if it is working well for you. Gradwell's phone platform is genuinely good, and if your team is happy with it, there may be no reason to change.

Compare your mobiles independently. This is where the biggest savings typically are. Business mobiles from £11 per month ex VAT across EE, Vodafone, O2 and Three, with coverage checked at every postcode your team operates from. Based on our experience, businesses that separate their mobile comparison from their VoIP provider save 15% to 30% on mobile costs.

Benchmark your broadband. If Gradwell provides your broadband, check whether specialist broadband providers offer better speeds or pricing at your premises.

Through Compare The Networks, you can compare all of this in one 10-minute conversation. We will tell you honestly where Gradwell is competitive and where the market offers something better.

What You Get Through Compare The Networks

  • Free comparison across EE, Vodafone, O2 and Three for business mobiles
  • VoIP benchmarking against multiple providers, from £20 per month ex VAT
  • Virtual landlines from £10 per month ex VAT
  • Business mobiles from all four networks, from £11 per month ex VAT
  • Postcode-level coverage check across all four networks
  • Business broadband (SOGEA) comparisons
  • No cost to you --- the networks pay us, not you
  • OFCOM-regulated and ICO registered since 2008
  • 4.3/5 on Trustpilot from over 1,000 verified reviews
  • Ongoing support through your contract and at renewal

Ten minutes. Free. No obligation.

Get a Free Comparison Today

Whether you are considering Gradwell, already using Wave and wondering about your mobile deal, or thinking about benchmarking the whole setup, it costs nothing to find out.

Get a free quote and we will compare your options across EE, Vodafone, O2 and Three for mobiles, and benchmark your VoIP against the wider market. Ten minutes, completely free, no obligation.

Want to explore further?

Nearly 20 years helping UK businesses. 1,000+ happy customers on Trustpilot. OFCOM-regulated. Free.

Get your free comparison now.

Frequently Asked Questions

Is Gradwell a good VoIP provider?

Gradwell is one of the more established UK VoIP providers, operating since 1998 with their own proprietary Wave platform. They have a solid reputation for reliability and UK-based support. Whether they are the right choice for your business depends on your specific requirements, budget and whether their pricing is competitive against the wider VoIP market. The best way to be sure is to compare your options.

What is Gradwell's Wave platform?

Wave is Gradwell's proprietary hosted VoIP platform. Unlike providers who resell third-party technology, Gradwell built and maintain Wave themselves. It offers features including call routing, auto-attendant, call recording, voicemail-to-email and softphone applications for desktop and mobile.

Is Gradwell good for business mobiles?

Business mobile is not Gradwell's core product. Their primary strength is VoIP and hosted telephony. If business mobiles are a significant part of your requirements, you may find more competitive deals and broader network choice through a dedicated mobile comparison service that compares EE, Vodafone, O2 and Three side by side.

Can I use Gradwell for VoIP and a different provider for mobiles?

Absolutely. Many businesses use the best provider for each service rather than taking everything from one company. You could use Gradwell (or any VoIP provider) for your phone system and compare business mobile deals independently through us to ensure you are getting the most competitive pricing and the best network coverage for your locations.

Can I leave Gradwell before my contract ends?

This depends on your specific contract terms. Early termination fees may apply. Review your contract carefully or contact Gradwell directly to understand your exit options. If your contract is approaching its end, that is the ideal time to compare the full market.

How does Compare The Networks differ from Gradwell?

We are an independent, OFCOM-regulated comparison service, not a telecoms provider. We compare deals from EE, Vodafone, O2 and Three for business mobiles and help businesses compare VoIP providers. Gradwell is a provider that sells their own VoIP platform and telecoms services. Think of us like a mortgage broker versus going direct to one bank.

Is Compare The Networks really free?

Completely free. The networks pay us a commission when you take a deal through us. You pay the same price as going direct to the network, or less. We never charge you a fee. This is the same model used by comparison sites like uSwitch and MoneySupermarket.

What is Compare The Networks Trustpilot rating?

4.3 out of 5 from over 1,000 verified reviews, rated "Excellent" on Trustpilot.

Get a Free Comparison Today

If you are considering Gradwell, or you are already with them and wondering whether you are on the best deal for VoIP and business mobiles, it costs nothing to find out.

Get a free quote and we will compare your options across EE, Vodafone, O2 and Three for business mobiles, and help you benchmark your VoIP setup against the wider market. It takes about 10 minutes, it is completely free, and there is no obligation.

Want to explore further first?

Nearly 20 years helping UK businesses. 1,000+ happy customers on Trustpilot. OFCOM-regulated. Free.

Get your free comparison now.

Ready to compare your options?

Get a free, no-obligation comparison across EE, Vodafone, O2 and Three in under 10 minutes.

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