The original developer has gone
A freelancer moved on or a vendor closed, and nobody understands the code well enough to fix it safely.
Software Maintenance and Support Services Software that keeps working, long after launch day.
Bug fixes, testing, security patches and small enhancements for the software your business already runs — whoever built it. One support contract, agreed response times and a team that has kept business software running for 21 years.
- Bug fixing & hotfixes
- Support SLAs
- QA & software testing
- Security patches
- Framework upgrades
- Small enhancements
21+years building and supporting business software
7500+projects delivered for clients in India and abroad
4 levelsticket priorities, each with an agreed response time
Freecode health check before any support contract
When you need a support partner
Six signs your software needs a proper maintenance contract.
Software is never finished. Browsers update, payment gateways change their APIs, tax rules move and users find the bugs testers missed. Without someone responsible, small faults turn into lost sales.
Bugs wait weeks for a fix
Issues are reported on WhatsApp, forgotten in email threads and fixed only when someone senior complains.
Every fix breaks something else
There are no test cases, so a change to invoicing quietly breaks reports, and users find out first.
Unpatched and out of date
Old frameworks, expired SSL certificates and libraries with published vulnerabilities nobody has updated.
Unpredictable support bills
Every small change becomes a new quote and a new negotiation, so budgeting for IT is guesswork.
A backlog of small changes
New report columns, form fields and GST tweaks pile up because no one has time between bigger projects.
Our software maintenance services
Software maintenance and support services, end to end.
We cover the four classic types of software maintenance — corrective, adaptive, perfective and preventive — plus the testing and help-desk support that make them reliable.
Corrective Maintenance & Bug Fixing
Reproduce, fix, test and release defects by priority, with hotfixes for anything that stops sales or billing.
Read more about Corrective Maintenance & Bug FixingHelp Desk & User Support
A ticket portal, email and phone line for your users, with L1 queries answered and L2/L3 issues routed to developers.
Read more about Help Desk & User SupportQA & Software Testing
Manual and automated regression testing, test-case libraries and release sign-off for every change we ship.
Read more about QA & Software TestingAdaptive Maintenance
Keep software compatible with new browsers, Android and iOS versions, payment gateway APIs and tax rules.
Security Patches & Upgrades
Dependency updates, vulnerability fixes, SSL renewals and framework upgrades before support ends.
Read more about Security Patches & UpgradesPerfective Maintenance & Enhancements
Small features, new reports, form changes and usability fixes delivered from a monthly bank of hours.
Read more about Perfective Maintenance & EnhancementsPreventive Maintenance
Code clean-up, log reviews, backup checks and database housekeeping that stop faults before users see them.
Takeover of Third-Party Code
Structured handover of software built by another vendor: code audit, documentation and a stabilisation plan.
Documentation & Knowledge Base
Release notes, user guides and technical documentation, so knowledge stays with your business, not one person.
Corrective maintenance
Bugs fixed by priority, not by who shouts loudest.
Every issue is logged as a ticket, given a priority from P1 (business stopped) to P4 (cosmetic) and worked to the response time agreed in your SLA. We reproduce the fault, find the root cause rather than patching the symptom, and release the fix through testing so it stays fixed.
- Root-cause analysis for every P1 and P2 incident
- Hotfix route for faults that stop sales, billing or payroll
- Fixes tested on a staging copy before they reach live users
- Ticket history you can search and report on
Software testing & quality assurance
Testing that catches problems before your customers do.
Most maintenance pain comes from changes that were never tested. We build a library of test cases around the workflows that matter most — orders, invoices, payments, payroll — and run regression tests before each release. Where it pays off, we automate them so every build is checked the same way.
- Functional, regression and user-acceptance testing
- Automated UI and API tests with Selenium, Playwright and Postman
- Cross-browser and real-device testing for web and mobile apps
- Release checklist and sign-off before anything goes live
Help desk & service levels
A support desk with response times written into the contract.
Your users raise tickets through a portal, email or phone, and every ticket is acknowledged, prioritised and tracked to closure. Response and resolution targets for each priority are agreed in the SLA before work starts, and you receive a monthly report showing how we performed against them.
- L1 user support, L2 configuration and L3 developer fixes
- Agreed response and resolution targets for P1 to P4
- Business-hours IST cover, with extended hours by agreement
- Monthly SLA report: tickets, response times and trends
Security patches & framework upgrades
Patched, upgraded and ready for the next audit.
Outdated libraries are one of the most common ways business software is compromised. We track the frameworks and packages your software depends on, apply security patches on a regular cycle, and plan major upgrades — such as moving from an end-of-life .NET or PHP version — before support for them runs out.
- Monthly dependency and vulnerability scans
- Planned upgrades for .NET, PHP, Node.js, Angular and React
- SSL certificate, domain and API key renewal tracking
- Access reviews and backup restore tests
Perfective maintenance
Small improvements, delivered every month.
A maintenance contract should not stop your software from getting better. A monthly bank of hours covers the small changes users ask for — a new report, an extra field, a changed GST rule, a faster screen — estimated upfront and delivered in planned releases with release notes.
- Monthly hours bank for change requests
- Written estimate and approval before any work starts
- Planned release calendar with release notes
- Larger changes quoted separately as fixed-price projects
What you get
What a Sysfo software support contract includes.
Clear paperwork and clear reporting, so you always know what was fixed, what changed and what is coming next.
- Code health check and stabilisation plan at the start
- Signed SLA with response and resolution targets per priority
- Ticket portal for your users, with full history
- Test-case library and regression test runs before releases
- Release notes for every fix and enhancement
- Monthly SLA and maintenance report
- Updated technical documentation and runbook
- Full source code in your own repository
Monthly support reportSample output · figures are illustrative
SLA performance
P1 response in SLA100%
All tickets in SLA96%
Regression pass rate98%
Patches applied18/20
Reopened tickets4%
Support roadmap
StabiliseMonth 1
- Code health check
- Fix critical bugs
- Set up ticket portal
StrengthenMonths 2–3
- Regression test suite
- Patch dependencies
ImproveOngoing
- Monthly enhancements
- Framework upgrade plan
How our support works
How we take over and maintain your software.
A structured onboarding means we understand your software before the first urgent ticket arrives.
-
1
Free code health check
freeWe review the code, hosting and open issues, and tell you honestly what state the software is in.
-
2
Agree the SLA
1 weekScope, priorities, response targets, support hours and a monthly hours bank are agreed in writing.
-
3
Knowledge transfer
1–3 weeksAccess, repository, documentation and walkthroughs with your team or the previous vendor.
-
4
Stabilise
first monthCritical bugs fixed, backups verified, dependencies patched and a regression test suite started.
-
5
Support & improve
ongoingTickets handled to SLA, planned releases, enhancements from the hours bank and a monthly report.
Support plans
Software support plans that fit how you work.
Every plan is quoted as a fixed monthly or per-project price after the free code health check.
Code health check
Free
A no-obligation review before you commit.
- Code, hosting and backlog review
- List of urgent risks
- Recommended support plan
Annual maintenance contract
Monthly retainer
Our most popular plan for live business software.
- Signed SLA for P1–P4 tickets
- Monthly hours bank for enhancements
- Monthly SLA report
Pay-as-you-go support
Per ticket
For stable software that rarely needs changes.
- Fixed quote for each request
- No monthly commitment
- Same team, same documentation
Testing & QA project
Fixed price
Independent testing before a big release.
- Test plan and test cases
- Manual and automated regression
- Defect report with priorities
Why Sysfo
Why businesses choose Sysfo for software support.
We build software too, so we know what makes code easy or hard to maintain — and we plan for the long term.
We support code we didn't write
Most of our support clients come with software built elsewhere. We audit it, document it and take responsibility for it.
Written SLAs, measured monthly
Response targets are in the contract and reported every month, so service quality is visible, not a promise.
Testing is part of every fix
No change goes live untested. Regression tests protect the workflows your business depends on.
Broad technology coverage
.NET, PHP, Java, Node.js, React, Angular, Flutter and native mobile — one team for web, mobile and database.
Your code, your access
Source code stays in your repository, access is least-privilege, and we sign an NDA on request.
Reachable in Lucknow and online
Talk to the engineers who fix your software, by phone, video or at our Lucknow office in IST hours.
FAQ
Software Maintenance and Support Services — frequently asked questions
What do software maintenance and support services include?
Our software maintenance and support services cover corrective maintenance (bug fixing), adaptive maintenance (keeping up with new browsers, OS versions and APIs), perfective maintenance (small enhancements), preventive maintenance, security patches, QA and regression testing, and a help desk for your users. Everything runs under a written SLA with agreed response times and a monthly report.
How much does software maintenance cost?
It depends on the size and age of the software, the technologies used, the support hours you need and how many changes you expect each month. After a free code health check we give you a fixed, itemised quote — usually a monthly retainer with an hours bank, or per-ticket pricing for stable software — so there are no surprise bills.
Can you maintain software built by another company?
Yes, and most of our support work starts this way. We begin with a code health check, get access to the repository and hosting, document the architecture and key workflows, and fix the most urgent issues first. If source code is missing or incomplete, we tell you plainly what can and cannot be supported.
What are the four types of software maintenance?
Corrective maintenance fixes defects. Adaptive maintenance keeps software working when its environment changes, such as a new Android version or a payment gateway API update. Perfective maintenance improves features and usability. Preventive maintenance reduces future risk through refactoring, patching and housekeeping. A good support contract covers all four, not just bug fixes.
What response times does your SLA offer?
Response and resolution targets are agreed per priority before the contract starts. A P1 issue that stops sales or billing gets the fastest response and a hotfix route, while cosmetic P4 issues are scheduled into the next planned release. Support hours, extended cover and escalation contacts are written into the SLA, and performance is reported monthly.
Do you provide software testing as a separate service?
Yes. We run independent QA and software testing projects before major releases: a test plan, test cases, manual and automated regression testing, cross-browser and device testing, and a prioritised defect report. Testing is also built into every maintenance contract, so no fix goes live without regression checks.
What is the difference between software maintenance and application maintenance?
On our site, software maintenance and support services focus on the support contract itself: fixing bugs, testing, patching and handling user tickets under an SLA. Application maintenance services go further into running the application — proactive monitoring, performance tuning, platform upgrades, migrations and legacy modernisation. Many clients combine both.
Who owns the source code during a maintenance contract?
You do. Code stays in your own Git repository or one we create in your name, with every change committed and documented. If you ever move support elsewhere, you keep the code, the documentation and the test cases, and we help with the handover.
Do you offer an annual maintenance contract (AMC) for software?
Yes. An annual maintenance contract is our most common arrangement for business software in India. It is billed monthly or annually, includes SLA-based bug fixing, security patches and a monthly hours bank for enhancements, and is reviewed each year against the ticket history.
Talk to our support team
Get a free code health check and support quote.
Tell us what your software does, what it is built with and what is going wrong. An engineer will call you back within one business day to arrange a free code health check.
- Free code health check
- Written SLA with response times
- Fixed monthly or per-ticket pricing
- We take over third-party code
- NDA signed on request
- You keep the source code