Platform
We built a Single Page Application on Craft CMS, secure and designed for high traffic and fast loading, with refreshed styling, an enhanced window and door selector and every part of the design split tested for conversion.
We delivered a new, conversion-focused website for Safestyle Windows, then relaunched it for ASHI Group Limited after it acquired the brand in December 2023.
Safestyle Windows is one of the UK's largest door and window installation businesses. Its website was more than a decade old, carrying years of iterations, bolt-ons and third-party integrations on a Sitecore build that was too complex a framework for future requirements. Safestyle wanted a fresh look, a leaner CMS without the baggage and a stable content migration, and we won the redesign ahead of nine other agencies.
We worked for 12 months on the new site, designed from split-test data gathered on the old one. Testing ideas and concepts is part of our CRO process, so we were confident the new site would perform better. The launch was split tested too, released to 10%, 25%, 50% and then 75% of search traffic, and it was performing 20% better. Days before the full switch, Safestyle announced it was entering administration.
ASHI Group Limited acquired the brand, website included, and wanted Ascensor to complete the job. The site was ready to go, and split testing had shown it was boosting sales and improving user experience. ASHI set a tight four-week deadline to integrate it with its back-office systems and go live.
This project focused on one part of the system: the platform, with CRO built into every stage. Every part of the design was split tested before the site went fully live.
We built a Single Page Application on Craft CMS, secure and designed for high traffic and fast loading, with refreshed styling, an enhanced window and door selector and every part of the design split tested for conversion.

We took a two-phase approach, starting with a customer-led design process. We reviewed Safestyle's architecture, environments, CMS core, CRM plugins and custom scripts, alongside competitor sites. Ascensor Advantage, our in-house tool, mapped customer pain points and friction against competitors, while forums and social listening showed why potential customers had chosen competitors instead.
UX workshops and focus groups shaped new recommendations for the sitemap, functionality and appearance. Our UX team then built wireframes from those recommendations and our own customer journey mapping, forming the foundations of the build.

Once the wireframes were agreed, development began. The new site is a Single Page Application on Craft CMS, built to be secure, handle high traffic and load fast. The styling was refreshed, and the interactive selector was overhauled to show windows and doors on different property styles.
Every part of the design was split tested, and the improvements were fully cross-browser tested across all current devices, operating systems and browser combinations. The launch itself rolled out to 10%, 25%, 50% and then 75% of search traffic.

After the acquisition, a project team of seven worked every available hour to integrate the site with ASHI's back-office systems in four weeks. It went live on time, right before the Christmas holidays and the start of the busy season.
Our development team handled the content migration, set-up, testing and deployment, while our data science team handled the move from Universal Analytics to GA4 to better monitor site activity.
Acquiring the Safestyle Windows brand happened very quickly. Everyone involved had to be agile and reactive, we asked and expected a lot of the incumbent partners and set strict deadlines. Ascensor did not let us down. We’ve been so happy with Ascensor’s service and support that we’ve agreed a contract extension and have been working through other projects with the team.
Completed on time and on budget, the site converts over 20% better than the original, a big difference for a high-traffic, high lead-generating site. It gives Safestyle a simpler, more secure CMS. ASHI has since extended its contract with us, and we provide ongoing technical support and further development.
The navigation redesign alone delivered a 19% uplift, one of many elements split tested before launch.
Designed and launched on split-test data, the new site lifted the conversion rate by 21% over the original Safestyle site.
The site's visual styling was refreshed, and every part of the new design was extensively split tested, giving Safestyle the fresh look it asked for.
Days from launch, the work looked lost. *Now it converts over 20% better.*