01
Web Development
Custom websites and web apps on modern frameworks.
Design and engineering studio, Colombo
We build digital products worth remembering.
Serendix partners with ambitious brands to design and ship websites, apps, and stores that look premium, load fast, and quietly win customers.
9 yrsbuilding for the web
70+products shipped
4.9average client rating
Saduka visalSEWWMINI
What we do
Six disciplines, one standard.
Strategy, design, and engineering under one roof, so nothing gets lost between teams.
02
UI/UX Design
Research-led interfaces that feel effortless.
03
Mobile App Development
iOS and Android apps with native-quality feel.
04
SEO & Digital Marketing
Get found and turn clicks into revenue.
Why Serendix
Chosen for the craft, kept for the partnership.
Experience
Nine years and seventy plus launches across fintech, retail, and hospitality.
Modern technologies
Next.js, React Native, and edge infrastructure as defaults, not upsells.
Performance
Green Core Web Vitals budgeted from day one and verified before launch.
Security
OWASP-aligned builds, least-privilege access, and audited dependencies.
Scalability
Architecture that survives traffic spikes and feature roadmaps alike.
Dedicated support
A named engineer on WhatsApp, not a ticket queue.
Creative thinking
Concepts tested against your market, not our portfolio.
Long-term partnership
Most clients stay past year three. We build for that.
Selected work
Proof, not promises.
A few of the products we are proud to have shipped.
A grocery store that loads in a blink
View case studyDirect bookings, fewer commissions
View case studySaduka visal
Visit websiteHow we work
A process you can see.
Eight stages, each with a clear owner, deliverable, and sign-off. You always know where your project stands.
Stage 01
Discovery
Goals, constraints, and success metrics on the table before anything else.
Stage 02
Research
Your market, your users, and your competitors, studied properly.
Stage 03
Strategy
A scoped plan with milestones, owners, and a fixed proposal.
Stage 04
UI/UX Design
Wireframes to high fidelity, reviewed with you at every step.
Stage 05
Development
Clean, documented code with weekly demos you can click through.
Stage 06
Testing
Devices, browsers, accessibility, and performance, all verified.
Stage 07
Launch
Zero-drama deploys with analytics, monitoring, and rollback ready.
Stage 08
Support
A support window on every project, and care plans that keep improving it.
Client words
Trusted by teams who ship.
★★★★★
They rebuilt our store and sales jumped within weeks. The site is fast, clean, and finally feels like our brand.
Dinesh FernandoFounder, Ceylon Cart
★★★★★
Working with Serendix felt like having an in-house team. Thoughtful, responsive, and seriously good at design.
Aisha NawazMarketing Lead, Serene Stays
Pricing
Honest numbers, no surprises.
Starting points for scoped quotes. Every project gets a fixed proposal before we begin.
Starter
For new businesses that need a credible home online.
LKR 145k from
Typically ships in 2 to 3 weeks
- Up to 5 designed pages
- Mobile-first responsive build
- Contact and WhatsApp integration
- Technical SEO foundation
- Two revision rounds
Recommended
Growth
For brands ready to turn their website into a channel.
LKR 385k from
Typically ships in 5 to 7 weeks
- Up to 12 pages or full store
- Custom design system
- CMS so your team can edit
- Performance budget, verified
- Analytics and event tracking
- 30 days of launch support
Scale
For products, platforms, and long-term partnerships.
Custom
Scoped sprint by sprint
- Web or mobile product builds
- Dedicated design and dev team
- Sprint-based delivery
- SLAs and priority support
- Ongoing optimization
All prices in Sri Lankan rupees. International clients are quoted in USD.
FAQ
Questions, answered.
A launch site ships in two to three weeks. Larger builds run five to ten weeks with weekly demos, so you always see progress instead of waiting for a big reveal.
Half to begin, half at launch for fixed-scope work. Larger engagements bill monthly against agreed milestones. No hidden line items, ever.
Every project includes a support window. After that, most clients keep a monthly care plan covering updates, monitoring, and steady improvements.
Fully. Repositories, design files, domains, and accounts are handed over in your name at launch, with documentation your next developer will thank us for.
Yes. We regularly embed with founders and internal engineers, joining your standups and shipping documented, testable code inside your workflow.
Get in touch
Tell us what you are building.
Send a few lines about your project and we will reply within one business day with honest next steps.
Chat on WhatsApp+94 77 123 4567, fastest reply
hello@serendix.lkFor briefs and documents
+94 11 234 5678Weekdays, 9am to 6pm
42 Flower Road, Colombo 07Visits by appointment
Thank you.
Your inquiry is on its way. We reply within one business day.