A renovation professional counts on Roto NX
For decades now, perfecta Fenster Vertriebs- und Montage GmbH has been focusing on the needs of homeowners who would like to replace their old windows with new ones. The company began working with Roto in 2024.
perfecta sees itself as a dependable partner with high standards in design, quality and service. With around 120 members of staff, two production sites in Westendorf and Grimma, and information and distribution centres throughout Germany, the family-run business is independent and close to its customers. This proximity can be seen not only in a tailored, solution-oriented service for renovations, but also in the continuous development of the product range.
Proximity to customers put into practice
The family-run business developed the ift-certified “no-mess window replacement” installation system back in 1978. Tailored product solutions of the highest standard and an openness to new ideas and innovations continue to shape the company to this day. In the new millennium, Ines and Stefanie Karl from the third generation of the family took over management responsibility. Something they both have in common is a passion for the continuous improvement and successful further development of perfecta. They choose their business partners with care and in close consultation with their managers. This is because they aim to consistently promote product design, production processes and digitalization together with expert partners.
Choosing a partner with clear objectives in mind
In early 2024, perfecta decided to enter into a strategic partnership with hardware manufacturer Roto. Ines Karl is pleased with the journey they have been on together so far: “Just a few weeks after the initial contact, we were holding intense discussions on a large scale. As part of these, we defined specific tasks and clearly formulated the expectations on each side. Before long, we were certain that close and structured collaboration would result in the perfect solutions, so we sealed the deal on the partnership.”
A single security striker for multiple depths
Stefanie Karl recounts a particular challenge: “Our windows are equipped with security strikers and compatible security cams at all locking points. Even in the basic version, we therefore offer a high level of burglary protection – combined with an excellent design and exceptional operating convenience. At the same time, we want our production process to be economical with as many identical parts as possible for all models and both depths. So we were looking for a manufacturer who was prepared to really get to grips with our window systems. A partner who was able to deliver the perfect hardware system for perfecta.” Roto was happy to take on this challenge.
The first step was to develop and test configurations based on the Roto NX Tilt&Turn hardware system for the different models from perfecta. Christoph Ruth from the Roto Lean Management team recalls what the experience was like at the start: “We were filled with ambition when we learned that perfecta previously had to work with different security strikers when processing white profiles and profiles laminated in colour. We wanted to optimize this with streamlined inventory in mind. And at the same time, it was important to achieve the aim of ‘operating convenience’ that we set ourselves, ideally with a single security striker that is a perfect match for the different profile systems. We somehow felt that we could take things one step further.”
New driving force
Holger Naumann, the assigned adviser in the Roto sales team, has been providing support to perfecta at the Westendorf site since the contract was formed. From day 1, he has been part of the project team, which he says has a special atmosphere: “Straight away there was a huge driving force behind the collaboration because everyone saw and wanted to exploit the opportunities for optimisation.” The two Karl sisters also felt this. “Roto professionally organised the entire conversion process. All the cogs meshed perfectly together,” recalls Stefanie Karl. Lean Production and Process Support, the Data Service, Product Development and Sales tackled every challenge that cropped up and didn’t take long to find an outstanding solution.
Changing hardware within five months
The plan was to switch over production at perfecta in Grimma in September 2024, while maintaining the same high level of productivity. This was agreed on in April 2024. While the changeover to working with Roto NX and the Roto NX | C concealed hinge side then took place in a strictly organised process, design engineers at Roto were working on a new striker. The Roto Data Service developed whole-new machine data in a short space of time. This was necessary because hardware solutions for perfecta’s renovation windows aren’t directly comparable with those of a standard new-build window. Over the summer months, production staff and fitters at perfecta’s sites in Westendorf and Grimma were taught how to process, set and adjust the new hardware. Some new shelving was procured for workstations in production and a Kanban system was established.
Even now, after working with Roto NX for more than a year, perfecta’s staff and distribution partners remain full of praise, reports Ines Karl. “Changing hardware in this short time frame was a huge challenge for us. One that our team not only accepted but easily overcame in collaboration with Roto. Our production process is efficient. Windows of consistently high and long-lasting quality leave the plant. This makes our staff very happy. And our customers too, of course.”
Ease of installation, strong design
Around 90% of all the windows sold by perfecta feature the “Roto NX | C” concealed hinge side. Ines Karl describes this as “an exceptional product” which can be used to produce sashes up to 150 kg and makes window installation simpler. perfecta’s distribution and installation partners are similarly pleased with the outcome of the changeover to Roto hardware technology.
Stefanie Karl ends the conversation by stating:
“Better windows for a better future – this is the joint promise that perfecta and Roto make to our customers.”
This article was published in Roto Inside 60.