WindowPlus

WindowPlus supplies and installs premium European uPVC and aluminium windows and doors for homes in Perth and across Western Australia. Every order is double or triple glazed, custom-made in Europe and backed by a 10-year product warranty. The team has more than 15 years of experience with European window systems, and its mobile showroom brings samples to customers' homes.

We redesigned the website from the ground up and rebuilt it as a fast, custom site. It went live on 27 October 2026.

The old site ran on WordPress with the Divi page builder and plugins such as Yoast and Site Kit, which loaded a lot of code on every page. Page titles were generic, such as "Home | WindowPlus", and the content said little about what sets the products apart: the thermal and acoustic ratings, the European profiles and the warranties.

Homeowners now research windows on Google and, more and more, by asking AI assistants such as ChatGPT and Gemini. WindowPlus needed a site that answers their questions clearly, loads fast on a phone and gives search engines and AI tools facts they can trust and quote.

• Redesigned the whole site around the questions homeowners ask: energy efficiency, noise, security, heritage looks and warranties
• Rebuilt it from scratch in PHP and plain JavaScript, with no WordPress, page builder or plugins to slow it down or keep updating
• Wrote dedicated pages for each window and door range, plus guides to glazing, energy efficiency, security and maintenance, with FAQs that answer common questions
• Added structured data to every page (business details, service area, services, FAQs and breadcrumbs) so Google and AI assistants can read the facts directly
• Published an llms.txt summary and robots.txt rules that welcome search engines and AI answers
• Built a gallery of nearly 300 photos of real Perth installations, filterable by product and lazy-loaded so it stays fast
• Kept every page light, with self-hosted fonts, CSS inlined into the page and responsive images
• Added a quote form that asks what the visitor needs and how they found WindowPlus, so the team can see which channels bring enquiries

The new site went live on 27 October 2026. In Google PageSpeed Insights, tested on 30 October 2026, the home page scores 98 for performance on mobile and 99 on desktop, and 100 for accessibility, best practices and SEO on both. It also passes all three of Lighthouse's new Agentic Browsing checks, which test how well AI agents can read and use a site.

On an emulated mid-range phone over a slow 4G connection, the first content appears in 1.0 second and the main content in 2.3 seconds, with no layout shift and no blocking scripts.