The Challenge

KRW Renovasi (PT Iman Berkah) had no structured web presence despite 8+ years of work and 150+ completed projects across 10+ cities in West Java. Prospective clients researching contractors for renovations worth tens to hundreds of millions of rupiah found no indexable pages, no portfolio, and no clear way to start a conversation, so high-intent local searches in Karawang, Bekasi, and Cikarang converted to competitors instead. The contractor relied on word-of-mouth, leaving it invisible to the growing share of homeowners who shortlist renovation contractors online before ever picking up the phone.

Constraints & Scale

This was a solo-developer build on a lean SME budget, so the architecture had to stay simple to maintain and cheap to host: no CMS overhead, no database, just statically rendered Next.js pages the client can extend later. Content had to be written and structured from scratch because the contractor had no existing brand copy, only raw project photos and a service list. The brand also needed to read as trustworthy to homeowners wary of contractor scams, which constrained tone and demanded visible social proof. Finally, the entire experience had to be WhatsApp-first, since that is how Indonesian SME clients actually convert.

System Architecture

The site is a statically generated Next.js (App Router) application written in TypeScript and styled with Tailwind CSS, with no backend database. Service and project content is modeled as structured data within the codebase and rendered at build time, giving every page a static HTML payload that caches at the edge for sub-second TTFB. The URL taxonomy is intentionally flat and semantic: /layanan/{service} for the 6 service pages, /proyek/{project} for case studies, plus /tentang, /galeri, and /kontak. Next.js Image serves responsive, lazy-loaded, format-optimized imagery so portfolio photos do not regress Core Web Vitals. On-page SEO is handled per-route through the Next.js Metadata API: unique titles, descriptions, canonical URLs, and Open Graph tags, complemented by LocalBusiness JSON-LD and a generated sitemap. Conversion is funneled through deep-linked WhatsApp click-to-chat URLs with prefilled messages, removing any form-handling backend. Deployment runs on Cloudflare for global edge delivery and caching.

Key Tradeoffs

We chose static Next.js rendering over a database-backed CMS because the contractor updates content rarely and a static build eliminates hosting cost, attack surface, and maintenance burden for a solo-managed site. We chose a WhatsApp click-to-chat flow over a traditional contact form because Indonesian SME buyers expect instant, personal messaging and abandon multi-field forms; this also removed the need for any server, spam handling, or email infrastructure. We chose individual indexable URLs for every service and project over a single long-scroll landing page because separate routes let each high-intent keyword (for example jasa renovasi rumah Karawang) rank on its own page, multiplying the site's search surface area at the cost of slightly more upfront content work.

Measurable Results

Shipped 13+ individually indexable pages (homepage, 6 service pages, portfolio, gallery, about, and contact) where the contractor previously had zero web presence. Static Next.js rendering and Next.js Image deliver mobile load times under 2 seconds and target Lighthouse performance scores above 95. The site exposes 6 high-intent service keywords on dedicated URLs for local Karawang search, backed by LocalBusiness structured data. Social proof is surfaced site-wide (150+ projects, 8+ years, 120+ clients, 4.9/5 rating), and a single-tap WhatsApp flow replaces multi-field forms, collapsing the path from landing to consultation to one click.

Case Study

KRW Renovasi Contractor Marketing Website

2026

A local-SEO marketing website for KRW Renovasi, a Karawang contractor, with 6 service pages and a WhatsApp-first lead flow built on Next.js.

KRW Renovasi Contractor Marketing Website screenshot

Tech Stack

Key Features

01Routes every visitor to a one-tap WhatsApp consultation with a prefilled message
02Exposes 6 dedicated service pages for high-intent local SEO
03Showcases real project photos across 6 featured case studies
04Surfaces trust signals: 150+ projects, 8+ years, 4.9/5 rating
05Loads in under 2 seconds via static Next.js and edge caching
06Embeds LocalBusiness schema and per-page metadata for Karawang search
07Explains the workflow through a documented 5-step process section
08Optimizes every image with responsive, lazy-loaded Next.js Image

Project Details

Aksara Karya built a fast, local-SEO marketing website for KRW Renovasi (PT Iman Berkah), a renovation and construction contractor serving Karawang, Bekasi, and Cikarang. The site turns a previously offline contractor brand into a structured online presence with 13+ pages, 6 dedicated service pages, and a WhatsApp-first conversion path that routes every visitor toward a single, frictionless consultation. The website serves homeowners and small business owners across 10+ cities in West Java who research contractors online before committing to a renovation worth tens to hundreds of millions of rupiah. As the sole developer on the project, we owned everything from information architecture and copywriting structure to component development, on-page SEO, and deployment. The brand needed to look trustworthy fast, so we surfaced social proof early: 150+ completed projects, 8+ years of experience, 120+ satisfied clients, and a 4.9/5 testimonial rating. We built the site on Next.js with the App Router, TypeScript, and Tailwind CSS, rendering pages statically for near-instant loads and edge cacheability. Next.js Image handles responsive, lazy-loaded imagery so project photos stay sharp without hurting Core Web Vitals. The most deliberate engineering work went into local SEO: per-page metadata, canonical URLs, Open Graph tags, a clean URL taxonomy (/layanan/* for services, /proyek/* for projects), and LocalBusiness structured data so the contractor surfaces for high-intent Karawang searches. Every service and project lives at its own indexable URL rather than behind a single-page scroll. The result is a contractor website that loads in well under 2 seconds on mobile, targets Lighthouse scores above 95, and exposes 13+ individually indexable pages to search engines instead of one. The WhatsApp-first design collapses the path from landing to conversation into a single tap, and structured trust signals (RAB transparency, a documented 5-step process, real project photos) lower the perceived risk of hiring a contractor sight-unseen.

#website#company-profile#local-seo#nextjs#construction#karawang

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