Posted by: Aaron Sadler
31 October 2025
If you’re weighing up Azure migration partners, you want numbers, not noise. This page puts Growcreate’s track record, methods and measures in one place so you can judge success with your eyes open.
What we mean by migration success
Success is not “it went live”. It’s a clean cutover, audited data integrity, the right uptime, and a platform that runs faster and costs less than before. We measure that with clear KPIs, publish the results and keep improving.
Proof points at a glance
- Over 50 Azure migrations delivered across finance, professional services and membership organisations.
- 99.99% uptime during migrations with 0% data loss, plus up to 30% post‑migration cost reduction cited on our service page.
- Migration process engineered for 100% migration accuracy and zero unplanned downtime through rehearsed cutovers, automated testing and rollback plans.
- 100% data integrity achieved across enterprise CMS migrations, with RPO under 15 minutes backed by Azure Backup and replication.
- SLA‑backed operations after go‑live – 99.95% availability target, 24/7 monitoring and <15 minute incident acknowledgement.
These outcomes are achieved by applying Microsoft’s Well‑Architected and Cloud Adoption Framework guidance to every migration, then validating with automated tests and live drills.
How we calculate migration success rate
We calculate success rate as the percentage of production cutovers that meet all acceptance criteria:
- Zero unplanned downtime during cutover window
- Data integrity verified with automated checksums and record‑level audits
- RPO and RTO achieved for each workload
- No rollback invoked, or rollback executed and full service restored within agreed RTO
- Performance and functional parity validated against pre‑migration benchmarks
RPO and RTO definitions follow Microsoft guidance, so you know we’re counting the same way you do.
Methods that keep cutover clean
- Discovery and assessment – We use Azure Migrate to discover dependencies, right‑size resources and map your waves with a central dashboard, then add code and database assessments where needed.
- Landing zone first – We prepare an Azure landing zone with policy, networking, identity and monitoring aligned to CAF so workloads land into the right guardrails on day one.
- Architecture reviews – Every workload is checked against the five pillars of the Well‑Architected Framework to tune reliability, security, cost, operations and performance.
- Blue‑green and slot swaps – For web workloads we use App Service deployment slots to warm up releases and swap with no downtime.
- DR drills – We set tiered RPO/RTO and rehearse failover so recovery is proven, not presumed.
- UK data residency by design – We deploy to UK South and UK West with regional pairing and clearly document non‑regional services, then apply sovereignty controls where required.
What “good” looks like in the UK
If you operate in regulated sectors, the bar is higher. Our approach maps to UK expectations on resilience and evidence.
- Finance – FCA rules require firms to operate within impact tolerances for important business services. We design for that standard and provide audit evidence after cutover.
- Public sector and EEA operations – Where residency matters, we keep customer data in‑geography and align to Microsoft’s EU Data Boundary and sovereignty capabilities if you serve EU users alongside UK.
Client outcomes you can check
- Flagstone – Migrated to managed Azure with automated deployments and always‑on support, backed by a 99.9% uptime guarantee.
- Mortgage Advice Bureau – Cloud consulting and DevOps transformation on Azure to improve stability, scalability and release cadence.
- Quintet Private Bank – Enterprise CMS migration and Azure hosting with Azure Front Door WAF, SSO and fully monitored environments.
- Thirtyone:eight – Modernised on Umbraco and Azure with a secure member portal and Microsoft Dynamics integration.
The scorecard we publish on every migration
| Metric | Target on cutover day | How we validate |
|---|---|---|
| Unplanned downtime | 0 minutes | Synthetic and real user monitoring during swap |
| Data integrity | 100% records matched | Checksums, row counts, media audits |
| RPO | ≤ 15 minutes where applicable | Backup and replication logs |
| RTO | As contracted per workload | Failover rehearsal timing |
| Performance | = or better than baseline | Load tests and Lighthouse metrics |
| Cost efficiency | Right‑sized from day one | Azure cost reports and Advisor |
Targets align with our migration service commitments and DR best practice.
Why our uptime claims add up
Azure’s own SLAs set the ground rules: design across availability zones or availability sets and you move from 99.9% for single instances to 99.95% and 99.99% connectivity guarantees. We architect to those patterns, then wrap them with our SLA for ongoing operations.
After go‑live, our Azure Support Services team runs 24/7 with 99.95% availability targets backed by SLA, so your platform stays steady while you release features at pace.
How we work with your team
- Support – We stabilise environments fast, improve observability and share clear incident runbooks so nothing gets lost in translation.
- Enhance – We tune performance, cut waste and tighten security with small, high‑impact changes each sprint.
- Evolve – We plan the next upgrades together so your platform keeps pace with the business.
Ready to see your numbers
Book a short Azure migration audit. We will map your estate, confirm downtime tolerance, define RPO/RTO and give you a migration plan with cost, effort and risk laid out in plain English.
Related reading
- Our Azure migration services and commitments.
- Microsoft’s migration checklist and planning guidance.
- The Well‑Architected Framework explained.
FAQs
Yes – we design the plan around your downtime tolerance, use continuous replication where needed and validate the swap using App Service deployment slots for web workloads.
We deploy regional services in UK South and UK West, specify paired regions for resilience, and document any non‑regional services with residency notes.
Yes – we use the Well‑Architected Framework and the Cloud Adoption Framework from planning to operations.
We move you into an SLA‑backed support plan with 24/7 monitoring, P1 acknowledgement within 15 minutes and monthly reporting on uptime, incidents and costs.