March 2025
Letchworth Garden City, Hertfordshire
Introduction
R4 Interiors, a specialist in high-quality commercial fit-outs, is committed to delivering exceptional interiors while maintaining sustainable site practices. As the company continues to grow, so does its focus on reducing its environmental impact across all operations—including on-site welfare provisions.

The Requirement
R4 Interiors needed a modern, eco-conscious welfare solution to support its on-site teams during project delivery. Traditional diesel-powered units conflicted with the company’s sustainability values and incurred high operational costs, prompting the search for a greener alternative.
The Solution
Partnering with ecowelfare, R4 Interiors brought in a fully solar-powered 24ft welfare unit. Thoughtfully equipped with a canteen, office space, and two toilets, the unit provided essential amenities for staff—without the fuel costs or carbon emissions of conventional setups. Designed for performance and comfort, the welfare unit aligned seamlessly with R4 Interiors’ commitment to efficiency, sustainability, and staff wellbeing.
The Conclusion
- Zero fuel costs – 100% solar-powered, removing the need for diesel
- Over 76 litres of fuel saved – Significantly cutting operating expenses
- Over 243kg of CO₂ emissions avoided – Supporting R4 Interiors’ low-carbon approach
- Enhanced team welfare – A clean, comfortable, and functional space for site staff