ASP.NET Development Services: Support, Upgrades and Core Migration
We support and modernize ASP.NET applications: fixing and securing Web Forms and MVC apps on .NET Framework, migrating them to ASP.NET Core, and building new APIs and features on Azure or AWS.
- Web Forms and MVC support
- Migration to ASP.NET Core
- Security patches and IIS hardening
- Azure and AWS deployment
- ASP.NET Core
- ASP.NET MVC
- Web Forms
- C#
- .NET Framework
- Entity Framework Core
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Move your .NET application forward without stopping the business
- Web Forms apps that need a modern UI
- MVC apps moving to ASP.NET Core
- On-premise IIS apps moving to Azure
- APIs for mobile apps over legacy data
- Security fixes after a failed audit
- Support for apps with no in-house team
Ecomsolver provides ASP.NET development services for companies running important systems on ASP.NET Web Forms, ASP.NET MVC or older Web API projects on .NET Framework. These apps often power quoting, claims, scheduling, ordering and reporting, and they usually work. The problem is that they are tied to Windows servers, hard to hire for and increasingly difficult to integrate with modern tools.
We stabilize first: fix bugs, patch security issues, update NuGet packages and harden IIS. Then we plan a staged migration to ASP.NET Core, using the strangler pattern so new and old code run side by side and modules move one at a time. The result runs on Linux or Windows, in containers or Azure App Service.
Every engagement starts with a free consultation and a written fixed quote, with weekly demos and full code ownership.
ASP.NET services
Every engagement starts with a free consultation and a written, fixed quote.
Legacy ASP.NET support
Bug fixes, small features, performance tuning and monitoring for Web Forms, MVC and Web API applications on .NET Framework, handled by developers who learn your system.
Migration to ASP.NET Core
Staged migration using the strangler pattern and upgrade tooling, moving controllers, views, authentication and data access to ASP.NET Core while users keep working.
Security patching and hardening
Fix injection and authentication weaknesses, update vulnerable packages, enforce HTTPS and secure cookies, and move secrets out of config files into Azure Key Vault.
Web Forms UI modernization
Replace ViewState-heavy Web Forms pages with Razor Pages, Blazor or a React front end, screen by screen, keeping business rules and data intact.
APIs and integrations
Build ASP.NET Core Web APIs that expose your legacy data to mobile apps, Power BI, Dynamics, Salesforce or partners, with OAuth2 and Microsoft Entra ID sign-in.
Cloud migration
Move from on-premise IIS and SQL Server to Azure App Service and Azure SQL, or to AWS, with CI/CD in Azure DevOps or GitHub Actions.
We fix it, fine-tune it, then add AI and automation.
Most clients come to us with something already running: a store that is slow, an app that crashes, code nobody wants to touch. We stabilise it first, then add the AI features that save time and earn money.
Fix
A code and infrastructure audit of your .NET product, then the fixes that matter most.
- Bugs, crashes and broken integrations
- Security patches and outdated versions
- Code nobody can maintain
Fine-tune
Make it fast, stable and easy to change, without a risky rewrite.
- Speed, caching and database tuning
- Tests, CI/CD and monitoring
- UX fixes where users get stuck
Add AI & automation
Practical AI built into the .NET product you already have.
- AI search and assistants over your own data
- Content, document and support automation
- AI agents that work with your tools
Why modernize ASP.NET with us
Lower hosting costs
ASP.NET Core runs on Linux and in containers, which opens cheaper hosting options and removes dependence on dedicated Windows servers and IIS.
Reduced security exposure
Patching packages and moving to supported .NET releases closes known vulnerabilities and helps you pass security reviews and customer audits.
No risky big-bang rewrite
Incremental migration lets each module go live separately, with rollback options, so the business keeps running throughout the project.
Easier hiring and integration
A modern .NET codebase with APIs, tests and CI/CD is easier to staff, extend and connect to AI, analytics and mobile tools.
- ASP.NET Core
- ASP.NET MVC
- Web Forms
- C#
- .NET Framework
- Entity Framework Core
- Blazor
- SQL Server
- IIS
- Azure App Service
- Azure DevOps
- Microsoft Entra ID
- Docker
- AWS
Get a fixed quote for your ASP.NET project
Tell us what your ASP.NET app does and where it runs. We reply within 24 hours with next steps and a written fixed quote.
- 100% free
- No obligation
- Reply within 24 hours
From first call to launch, with no surprises.
Clear milestones, weekly demos and a fixed price agreed before any work starts.
Application assessment
We review the .NET Framework version, project types, dependencies, database, hosting and integrations, and flag security risks and migration blockers.
Roadmap and fixed quote
You get a written plan covering what to fix now, what to migrate and in what order, with a fixed price and milestones.
Stabilize and secure
Critical bugs and vulnerabilities are fixed first. We add source control, automated builds and a staging environment if they are missing.
Migrate in stages
Modules move to ASP.NET Core one at a time behind a shared routing layer, each tested and demoed before it replaces the old code.
Cloud rollout and support
We deploy to Azure or AWS with monitoring and backups, retire old servers when safe and continue with support and new features.
Senior engineering, with the safeguards that make outsourcing safe.
9+ years as Ecomsolver Pvt. Ltd., building and maintaining software for clients in the USA, UK, Europe, Australia and India. Rated 5.0 on Clutch and 4.8 on GoodFirms.
Pay per milestone
You never pay for work you have not seen and approved.
You own everything
Full source code, designs and accounts are transferred to you. No lock-in.
NDA before you share
We sign your NDA before you tell us about your idea. Your IP stays yours.
Full transparency
Weekly demos, a shared task board and direct access to your developers.
Your time zone
Overlapping hours with the USA, UK, Europe, Middle East and Australia.
Senior engineers
Your project is built by experienced developers, not trainees.
What clients say about working with Ravindra and the team.
Verified reviews from Clutch, GoodFirms, LinkedIn and long-term clients in the USA, UK, Australia, Europe and India.
“I've been working with Ravindra and the Ecomsolver development team consistently for several years now and will continue to do so. During this time, the team has worked across the Magento, Shopify and WordPress platforms and on everything from small changes to full website builds. Throughout this period the team has continued to provide excellent service and inventive, skillful solutions…”
“We've increased sales by 20% thanks to their work.”
Clutch summary: Ecomsolver provides ongoing web development services and support for a Magento website, adding extensions and troubleshooting and fixing bugs as needed. Ecomsolver's ability to maintain an evolving, complex e-commerce site is critical to the…
Founder, Crown Bees · Woodinville, WashingtonMagento development & support
“I recently had the pleasure of working with Ravindra Saini on the redesign and refinement of my website, CulturalConfidence.com, and I couldn't be more pleased with the results. Ravindra brought both technical skill and a responsive, collaborative attitude to the process. He implemented a range of updates with care, from visual improvements to functional adjustments, and always remained receptive to…”
CEO & Cultural Expert, Cultural ConfidenceWebsite redesign“Ravindra is one of the absolute best Magento developers I've hired and worked with over the past 3 years and just a pleasure to work with! If you are in need of integrating the fastest Magento product import process available this is your guy! He's very professional and his English communication skills are perfect. If you are on Magento or…”
AVP, Web Marketing Manager, AXOS BankMagento development“We're impressed with their quality of work.”
Clutch summary: Ecomsolver Pvt. Ltd. has developed an e-commerce website for a custom uniforms company. The team has built and maintained the client-requested Magento features. Ecomsolver Pvt. Ltd. has helped the client see success in their…
President, WearForm · Houston, TexasMagento e-commerce development“5* What an amazing developer. I have been communicating with Ravindra over the last few days and his service he delivered has been exemplary brilliant. Outstanding service, amazing value, great product and he have made every effort to go above and beyond for my needs. Ravindra listened to my needs, explained everything and gave support all the way through. Ravindra…”
“I could always depend on them when something needed to be done quickly.”
Clutch summary: Ecomsolver Pvt. Ltd. fixed technical issues in a sophisticated e-commerce site. They also created custom navigation functionality and an online catalog. The enhanced site helped double sales, thanks to Ecomsolver's technical expertise. Their reliability,…
Technical Lead, AP OnderdelenCustom Magento development“Their breadth of knowledge exceeded our expectations.”
Clutch summary: Ecomsolver Pvt. Ltd. provided website support for an e-commerce platform. They upgraded the client's Magento website from version 4.4.2 to version 4.4.7-p3 and updated their existing and depreciated plug-ins. Ecomsolver Pvt. Ltd. delivered a…
Sales Manager, Streamaster Australia · SydneyMagento upgrade & support“We have worked with Ecomsolver for the past 3 years in a steady capacity. Our magento website (www.crownbees.com) has been maintained, upgraded, and modified by Ecomsolver. We're are in the middle of rebuilding our website for Magento 2, and rely upon their team to ensure all extensions function and work as developed. We are extremely pleased with their work. Ravindra,…”
Owner, Crown Bees · Woodinville, WashingtonMagento maintenance & Magento 2 rebuild“As someone without any experience in creating a webpage, it was important to me to be able to work with an expert. Ravindra is not only an expert at web design and creation, but also a very smart, patient and professional person. The project was completed faster than expected, and the site looks even better than I imagined. It was…”
Website design & development“They would give you exactly what you want and expect.”
Clutch summary: A GIS data service provider tapped Ecomsolver Pvt. Ltd. to update their e-commerce site from Magento 1 to Magento 2. They worked closely with the client to upgrade and refresh the web app. Ecomsolver…
CEO & Founder, USLandGrid · Denver, ColoradoMagento 1 to Magento 2 migration“Ravindra Saini is a very skilled professional. We have developed a few projects together and I really enjoyed working with him. He proved to have a deep knowledge of website design and building on multiple platforms, solved all the problems in a fast and effective way, and showed a big availability to accommodate client's demands and needs. I recommend Ravindra…”
ASP.NET Development: frequently asked questions
Ask us on WhatsApp. A real person replies, usually within minutes during working hours.
Ask on WhatsAppCan you support our old ASP.NET Web Forms application?
Yes. Web Forms still runs on .NET Framework and many businesses rely on it. We provide bug fixes, small features, security patching and server hardening while the app stays in place. If you later decide to modernize, the knowledge we build during support makes migration faster and less risky.
What do your ASP.NET development services include?
Our ASP.NET development services include support for Web Forms, MVC and Web API apps, security patching, performance tuning, migration to ASP.NET Core, UI modernization with Razor Pages, Blazor or React, new APIs and cloud migration to Azure or AWS. You can start with an assessment or a single fix and expand from there.
How do you migrate from .NET Framework to ASP.NET Core?
We use an incremental approach. A new ASP.NET Core app sits in front of the old one and takes over routes as each module is migrated, while shared authentication keeps users signed in. Data access moves to Entity Framework Core, and business logic is ported and tested module by module. The old app is retired at the end.
Will the migration change our database?
Usually not much. Most migrations keep SQL Server and the existing schema, so reports and integrations continue to work. We may add indexes, fix problem queries or move to Azure SQL if you are moving to the cloud. Any schema changes are scripted, tested on a copy of your data and reviewed with you first.
How long does an ASP.NET Core migration take?
It depends on the number of modules, the amount of Web Forms UI and how much business logic sits in code-behind files. After the assessment, we give you a written timeline split into milestones with a fixed quote. Because migration is staged, you start seeing modernized modules in production well before the full project ends.