At Eco Sash & Case, we’re proud to be recognised as one of the best window companies in Edinburgh, trusted by homeowners across the Lothians and Fife. Whether we’re restoring a listed Georgian townhouse or upgrading a Victorian flat with double glazing, our mission remains the same: to combine expert craftsmanship, trusted certifications, and an eco-conscious approach, giving you peace of mind with every installation.
1. We Put the “Eco” in Every Project
Sustainability is at the heart of everything we do, guiding the way we restore, repair, and install windows. We place a high priority on fixing and reusing the existing timber windows whenever we can, protecting homes’ aesthetic appeal and cutting down on waste. If new timber is required, we use FSC-certified redwood, ensuring that every piece comes from responsibly managed, sustainable forests.
Our commitment to eco-conscious practices extends to every material we use. Including the paint finish, which is applied with Remmers paint. Remmers paint rigorous VOC testing and is EN71-3 compliant, providing a safe, low-impact solution for both people and the environment.
Beyond materials, we also focus on improving your home’s energy efficiency. Our draught-proofing techniques and glazing upgrades help reduce heat loss, lower energy bills, and improve overall comfort, while also shrinking the carbon footprint of your home.
We don’t stop there, as part of our dedication to giving back to nature, we plant a tree through Trees for Life for every new window installation. Helping restore Scotland’s native woodlands and supporting the long-term health of our environment. By combining traditional craftsmanship with modern sustainable practices, we create windows that are not only beautiful and functional but also truly eco-friendly.
2. Certified Quality You Can Trust
Homeowners choose us not only for our craftsmanship but also for the reassurance that our work meets the highest industry standards.
✅ Our double-glazed units are fully BS EN 1279 compliant, ensuring top performance and durability.
✅ We use FSC-certified redwood timber, guaranteeing responsibly sourced, sustainable materials.
✅ Our Remmers finishes are VOC tested and EN71-3 compliant, prioritising safety and sustainability.
✅ Every joiner on our team is Safe Contractor approved and CITB certified, reflecting our commitment to skill and safety.
✅ We are proud to be ISO 9001 certified, demonstrating our dedication to quality management and continuous improvement.
✅ Our health and safety standards are managed in partnership with Citation, giving you complete peace of mind.
✅ We’re an Edinburgh Trusted Trader, independently vetted for quality and reliability.
3. We Respect Heritage and Character
Edinburgh’s period properties possess unique charm, and we preserve it through every project. Our expert joiners replicate original mouldings, proportions, and glazing bars to maintain architectural authenticity.
Whether restoring existing windows or crafting bespoke replacements, we balance tradition with innovation. If your property is listed or in a conservation area, we guide you through the process, ensuring your windows meet heritage standards while improving comfort and efficiency.
4. Long-Term Value for Your Home
As one of Edinburgh’s best window companies, we invest in quality that endures.
- Improve energy efficiency and comfort.
- Preserve the architectural integrity of your property.
- Meet conservation and planning requirements.
- Enjoy windows that are built to last, not just to look good.
We don’t just install windows, we help protect your home’s history while preparing it for the future.
5. We Build Trust Through Transparency
From the first survey to the final inspection, we keep you informed every step of the way. We’ll always give honest advice. If your windows can be repaired rather than replaced, we’ll tell you.
Our customers value our reliability, clear communication, and attention to detail. That’s why we’re proud to be one of Edinburgh’s most highly rated window companies, with strong local recommendations and consistent five-star reviews.
