Partners & Accreditations
Professional memberships, industry accreditations and the partnerships that underpin our work.
Our Credentials
Accreditations & Memberships
Federation of Master Builders
Full membership with commitment to quality standards and customer protection
Citation
Health, Safety and HR compliance specialists supporting Collstone's commitment to best practice on every project
Our Partners
Trusted Partners
We collaborate with trusted industry specialists to deliver consistent, high-quality results — combining expert knowledge, sustainable solutions, and a bespoke approach for every home.
Want to work with us? Find out more about joining our partner network.
Premium Materials
Our Suppliers
At Collstone Projects, we work with a handpicked network of premium suppliers who support our commitment to exceptional quality and attention to detail. From sustainably sourced materials to high-end fixtures and finishes, our suppliers provide the foundation for every successful project.
Paints & Finishes
Bathrooms & Plumbing
Kitchens & Appliances
Construction
Trusted Suppliers & Craftspeople
We work with a carefully selected network of specialist suppliers and subcontractors, many of whom we've collaborated with for over a decade. These relationships ensure consistency, quality and access to the finest materials and expertise.
Our supplier network includes heritage stone merchants, specialist timber suppliers, conservation materials stockists, and craftspeople skilled in traditional trades — from lime plasterers to leadwork specialists.
We believe in supporting local businesses where possible, maintaining relationships with South West suppliers and craftspeople who share our commitment to quality and heritage conservation.
Questions About Our Credentials?
We're happy to provide copies of our insurance certificates, accreditation documentation and references from previous clients.
Contact Us