Cleanroom Systems International
Turn-Key Cleanrooms
A design-first, Elementor Pro website for a Dutch cleanroom specialist delivering turn-key solutions worldwide. The site communicates CSI's four-phase methodology — Design, Engineer, Build, Care — through a clean, technical aesthetic. Six industry sectors, a project portfolio, a blog, and a brochure-download lead magnet are all built with custom Elementor widgets that the CSI team can manage and grow independently.
- Discipline
- WordPress Development
- Role
- Developer
- Year
- 2025
- Client
- csibv.com
- Industry
- Cleanroom Technology · Engineering · Construction
- Platform
- WordPress · Elementor Pro · Custom Widgets
01By the numbers
A technical B2B website measured by its ability to communicate engineering precision — every section designed to build trust before the first phone call.
PageSpeed mobile
Optimised for a portfolio-heavy site with project galleries, sector pages, and brochure downloads.
Design & Strategy
Technical precision, designed first.
The project began with a design-first approach — wireframes, mockups, and visual direction established before a single line of code. The final design translates CSI's engineering DNA into a digital presence: clean lines, structured grids, a restrained industrial palette, and photography that showcases real cleanroom environments. The homepage leads with the core promise — 'Cleanrooms op maat, turn-key opgeleverd' — followed by trust signals, client logos, and a clear path into the four-phase methodology. Every layout decision reinforces precision, reliability, and Dutch engineering quality.
Platform & Build
Elementor Pro + custom widgets, built for B2B engineering.
The site runs on WordPress with Elementor Pro, extended by custom widgets purpose-built for an engineering firm's communication needs. A project portfolio widget renders completed cleanroom projects (Air-Up, HAWO, Nebo Special Tooling, Nearfield Instruments) with consistent cards and detail pages. A sector widget showcases six industries with icons and descriptions. A methodology section breaks down the Design-Engineer-Build-Care phases with numbered steps and expandable details. A brochure download popup captures leads. Behind the scenes, ACF Flexible Content gives the CSI team editorial control over projects, news, vacancies, and sector pages.
Content & Authority
A platform that proves expertise before the first meeting.
The website functions as CSI's credibility engine. The project portfolio showcases real cleanroom installations with photography that speaks to technical buyers. The 'Over ons' page introduces director Sil Munsters and the team's philosophy. The blog/nieuws section keeps the site alive with company updates. A 'Werken bij' (vacancies) section attracts engineering talent. Downloadable brochures and company profiles capture qualified leads. Client logos build immediate trust. SEO-optimised for Dutch and international queries in the cleanroom and high-tech manufacturing space. GDPR-compliant, cookie-consent integrated, and built mobile-first.
02Across surfaces
One system. Every surface.
Whether a procurement manager reviews projects on a desktop, a cleanroom engineer browses sectors on a tablet, or a job seeker checks vacancies on a phone — the experience stays precise, fast, and technically credible.
Notes Dutch-localised, GDPR-compliant, with cookie consent — built for the European B2B engineering market.
03In their words
Uw doelstelling is onze taak!
Sil Munsters · Directeur, CSI B.V.
04The toolkit
Tools & technologies
A focused stack balancing technical precision with the editorial flexibility an engineering firm needs to showcase its work and attract talent.
- WordPress
- Elementor Pro
- ACF Pro
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All work
Freelance WordPress Developer Engineering Website — Case Study
This freelance WordPress developer engineering website case study covers how Mosharaf Hossain built a corporate site for Cleanroom Systems International, a turn-key cleanroom design and build company. Building a freelance WordPress developer engineering website for a specialist engineering firm requires credibility-first architecture — procurement managers and facilities directors evaluate suppliers on trust signals, case studies, and technical authority before making contact.
Engineering company WordPress websites need to balance technical depth with accessible communication. The challenge was presenting complex cleanroom specifications and compliance standards in a way that informed buyers without overwhelming them, while guiding qualified leads toward an enquiry form.
Mosharaf built the freelance WordPress developer engineering website with Elementor Pro for page layout flexibility and ACF Pro for case study and project portfolio management. The project portfolio system allows the CSI team to add completed projects with specifications, images, and compliance certifications through wp-admin.
Stack: WordPress, Elementor Pro, ACF Pro, project portfolio system, lead generation architecture.
Need a freelance WordPress developer for an engineering firm, manufacturing company, or B2B technical services website? Contact Mosharaf Hossain to discuss your project.