The .NET Legacy Specialists
Chesapeake Foundry maintains, extends, and modernizes the .NET Framework systems that run your business. We've been here since day one—handling the WebForms, legacy MVC, and SQL Server codebases most shops walk away from.
Real engineering for the .NET systems that actually run your business
From .NET Framework maintenance to incremental modernization, we meet you where your code actually is — not where a vendor wishes it were.
Legacy .NET Maintenance & Support
Ongoing maintenance, bug fixes, and support for .NET Framework 1.1–4.8, WebForms, and MVC — the core stack that runs your business, kept running.
Legacy .NET Modernization
Planned, incremental migration from .NET Framework 1.1 – 4.8 and WebForms to modern .NET versions — at a pace that fits your business.
SQL Server & Data Engineering
SQL Server administration, optimization, and reporting — including SSRS, SSIS, and complex T-SQL work for organizations running critical data workflows.
The engineers who know your stack
Most development shops are optimized for greenfield projects and modern frameworks. We built Chesapeake Foundry around the opposite — the .NET Framework systems that have been running businesses for decades. We've been here since day one, providing a real engineering partner for the code that actually runs your business.
We know the old stack
VB6, classic ASP, Access, .NET Framework, SQL Server. We've worked in these environments long enough to move fast without breaking things.
Practical, not ideological
We don't push rewrites when maintenance makes sense. We assess what you have, tell you what we find, and recommend what actually serves your business.
Long-term partnership
Legacy systems need sustained attention, not a one-time fix. We work as an ongoing partner — someone who knows your code, your history, and your constraints.
"Your engineers should be building what's next — not babysitting the system that runs things today."
We step in as the team that owns the legacy system. Your developers stay focused on new work. The old system stays stable, maintained, and in capable hands.
Free your team to focus on what matters.
Legacy systems generate tickets, deployment anxiety, and tribal knowledge debt. Every hour your best developers spend on the old system is an hour not spent on the new one. We solve that split.
We absorb the tribal knowledge
Your system carries history that only one or two people know. We learn it, document it, and take ownership — so that knowledge stops being a single point of failure.
We own the incidents
Scary deployments and production fires shouldn't interrupt your product team's sprint. That's what we're here for.
Your roadmap stays intact
When the legacy system needs attention, it comes to us — not your developers. Your team stays focused on forward work.
The 'Invisible' Wins
.NET engineering isn't about flashy launches. It's about stabilizing the systems that run your business so your team can focus on what actually matters.
Unwinding the 'Cargo-Cult' Architecture
The Challenge
A sprawling .NET application where logic was buried in 'Clean Code' and 'DDD' layers that fought the team's ability to ship, combined with logic spread across multiple databases and stored procedures.
Our Approach
A systematic audit and simplification of the architecture. We stripped away the layers that were adding friction without value, moved logic to where it was most maintainable, and stabilized the missing lower environments.
The Outcome
The engineering team was freed from fighting their own architecture and could finally focus on high-impact work that moved the business forward.
Surgical Logic Extraction & Parity
The Challenge
Business-critical logic was locked in complex stored procedures across multiple SQL Server databases, making it impossible to test or extend without significant risk.
Our Approach
We carefully extracted the T-SQL logic, porting it to a testable .NET layer. We used automated unit testing to ensure the output of the new system was bit-for-bit identical to the legacy procedures before switching over.
The Outcome
A high-risk legacy component was stabilized and moved to a modern, testable codebase, allowing for rapid future iteration with zero regressions.
The 'Invisible' Stability Rescue
The Challenge
A vital system required constant 'firefighting' from the dev team. It was a black box of tribal knowledge, fragile deployments, and inconsistent behavior.
Our Approach
We performed a deep engineering audit, stabilized the environments, and automated the 'tribal knowledge' out of the deployment process. We fixed the bugs that no one noticed until they were gone.
The Outcome
The system became so stable that the 'firefighting' stopped. No one noticed the change—which was the ultimate win. The developers moved on to work that actually grew the company.
A process built for .NET reality
Assess
We learn your system before touching it. Documentation, history, risk areas, dependencies.
Stabilize
Address the immediate issues: bugs, failing components, security vulnerabilities, documentation gaps.
Extend or Modernize
New features, integrations, or a planned migration path — on your timeline and budget.
Support
Ongoing maintenance, monitoring, and a partner that knows your codebase.
Your legacy system deserves a real engineer.
Tell us what you're running and we'll tell you what we can do with it.
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