Your Umbraco Site Ison Borrowed Time
Security support has ended. Finding developers is a challenge. Each day on legacy Umbraco increases your exposure.
Work directly with senior engineers who've delivered Umbraco solutions for Diageo, NSPCC, and Médecins Sans Frontières. London agency quality. Nearshore rates. 30–50% savings.
Do You Know Which Umbraco Version You're Running?
Unsupported versions leave you exposed to security vulnerabilities, compliance issues, and growing technical debt. It's worth checking.
Unsupported Versions — Upgrade Required
Supported Versions — Your Upgrade Targets
- ✓ Maximum support window (Nov 2028)
- ✓ .NET 10 LTS performance gains
- ✓ Future-proof your investment
LTS — Long-Term Support
3 years of security updates
LTS versions align with .NET LTS releases: 24 months of full support plus 12 months of security-only updates. The sensible choice for production sites needing stability.
STS — Standard-Term Support
1 year of security updates
STS versions offer the latest features and .NET versions, with 9 months of full support plus 3 months of security updates. Better suited to teams who want to stay on the cutting edge.
The Cost of Waiting Is Higher Than You'd Expect
Security Exposure
End-of-life versions receive no security patches. Each new vulnerability discovered remains a permanent risk to your data and reputation.
Compounding Technical Debt
The longer you wait, the more breaking changes accumulate. Upgrading from v8 to v17 typically costs 3-4× more than v13 to v17.
Performance Gap
.NET 10 delivers 40%+ faster cold starts and 2× better throughput than .NET Framework. Your competitors may already be there.
Not certain which version you're on, or what the best upgrade path looks like?
We'll Assess Your Site—Free of Charge
Check My Version & Get a Plan15 minutes of your time • No obligation • Full report within 48 hours
Why Your Umbraco 7–13 Site
Can't Wait
Your Umbraco 7/8 site is already a security liability—no patches, no support, just risk. The longer you wait, the more complex and costly the migration.
Security is Non-Negotiable
Umbraco 7 and 8 no longer receive security patches. Umbraco 13 support ends December 2026. Every day without patches is exposure.
Technical Debt Compounds Daily
Legacy .NET Framework developers are expensive and rare. Your codebase becomes riskier every month.
Hosting Costs You More
Modern .NET 10 unlocks Azure, AWS, and containers. Stop overpaying for legacy Windows hosting.
Performance Drives Conversions
Umbraco 17 on .NET 10 delivers 2-3x faster page loads. Slow sites lose customers.
Why Umbraco 17 + .NET 10?
Umbraco 17 is the new Long-Term Support release, built on Microsoft's .NET 10 LTS. Security updates until November 2028. Modern development patterns. A platform for the next decade.
Let's Talk About Your Migration
I'm Marco Teodoro, Managing Partner at Double. With over 17 years in .NET development and countless Umbraco projects delivered, I personally oversee every migration we do.
When you work with Double, you're not handed off to junior developers or lost in a project queue. You get direct access to senior engineers who understand both the technical and business stakes of your upgrade.
Let's have a conversation about your site, your timeline, and your budget. No pressure, just honest advice.
London Quality.
Nearshore Pricing.
We're not a "software factory." We're 10 senior engineers and designers in Lisbon with 17+ years building enterprise .NET solutions for UK agencies and brands.
Official Umbraco Partner
One of a select group globally. Certified developers, direct Umbraco HQ support access, and early access to new releases and migration tools.
GMT Aligned
Same working hours as UK. Real-time collaboration. No 3am standups.
Senior-Only Engineers
No juniors, no learning on your dime. 8+ years average experience per developer.
30–50% Less
Lower overhead than London agencies. Same quality, better value, no compromise.
Enterprise & Agency Partners
We partner with UK and European agencies who need reliable, expert Umbraco delivery. Our clients include Diageo, NSPCC, MSF, and agencies across the UK, Denmark, and Netherlands.
“Double's team feels like an extension of our own. Their Umbraco expertise and reliability has been exceptional.”
Transparent. Predictable. Low-Risk.
No surprises. No scope creep. Fixed-price migrations with clear milestones.
Discovery & Technical Audit
We analyze your codebase, document package versions, custom code, and data structures. You get a detailed migration roadmap with timeline and costs.
Development & Migration
We rebuild on Umbraco 17 + .NET 10, migrating content, templates, and integrations. Weekly demos and full transparency.
QA, UAT & Launch
Rigorous testing, performance optimization, and security hardening. You approve each milestone before go-live.
Hypercare & Support
Post-launch monitoring, rapid bug fixes, and knowledge transfer. We don't disappear after deployment.
Fixed-Price Packages.
No Surprises.
30–50% less than UK agency rates. Every quote is fixed after our discovery phase.
Standard Migration
For straightforward brochure sites with standard templates and limited custom code.
- Umbraco 7/8 to 17 migration
- Content type migration
- Template conversion to Razor
- Basic integrations
- Testing & QA
- 2-week hypercare
Complex Migration
For sites with custom code, multiple integrations, and advanced functionality.
- Everything in Standard
- Custom code refactoring
- Complex integrations
- Multi-language support
- Performance optimization
- 4-week hypercare
- Priority support SLA
Enterprise
For large-scale, mission-critical sites requiring dedicated resources.
- Everything in Complex
- Dedicated project team
- Architecture consulting
- Load testing & scaling
- Security audit
- Training & documentation
- Ongoing maintenance
All prices exclude VAT. Final quote provided after technical discovery.
Frequently Asked Questions
If your question isn't answered here, do get in touch.
Most migrations take 8–16 weeks, depending on complexity. A straightforward brochure site might be 6–8 weeks, whilst a complex enterprise site with bespoke integrations could be 12–16 weeks. We provide realistic timelines after our discovery phase.
All content is migrated to the new platform. We use automated migration scripts combined with manual validation to ensure nothing is lost. You continue updating your existing site until go-live, and we do a final content sync before launch.
Not necessarily. We can migrate your templates and styles as they are. That said, many clients use this as an opportunity for a design refresh. We can do both—migrate first then iterate, or combine them if the timeline allows.
We include 2–4 weeks of hypercare support post-launch. During this period, any issues are prioritised and addressed promptly. We also offer ongoing maintenance contracts for longer-term peace of mind.
Absolutely. We regularly white-label for UK agencies who need specialist Umbraco expertise. We integrate with your project management tools, attend standups, and work as a seamless extension of your team.
Bespoke code is refactored to work with .NET 10 and Umbraco 17. We assess each integration individually—some can be upgraded, others may need replacing with modern alternatives. You receive a complete breakdown during discovery.
Get Your Free
Technical Assessment
Enter your email and tell us about your Umbraco site. We'll respond within 24 hours with initial thoughts and next steps.
No obligation
Free assessment with honest advice, even if we're not the right fit.
24-hour response
We reply fast. Usually same business day.
Senior engineers
Your assessment comes from experienced developers, not sales people.