Business Details
48 Years
experience
Expert Doors & Windows Solutions in Cardiff
Established in 1978, Vellacine has built a reputation as a trusted provider of bespoke glazing solutions for residential and commercial properties. Our expertise spans the design, manufacture, and installation of high-performance windows, doors, bi-folding systems, and glazed garden rooms, tailored to meet individual client needs while prioritising energy efficiency and sustainability. With a consultative approach, our experienced team collaborates closely with homeowners and architects to ensure every project aligns with both aesthetic vision and functional requirements. Backed by a comprehensive 10-year guarantee, our products are engineered to deliver durability, security, and thermal performance, incorporating materials such as aluminium, PVCu, and timber-hybrid systems.Our dedicated maintenance and repair service extends to both our installations and third-party systems, supported by a hardware trade counter offering specialist components and expert advice. Holding accreditations including ISO 9001, ISO 14001, and Fensa, we combine traditional craftsmanship with modern innovation to serve clients across Wales and the South West. With decades of operational history, our commitment to quality remains evident in every project, from traditional renovations to cutting-edge new builds.
Services
Windows
Doors
Bi-Folds
Garden Rooms
Maintenance
Hardware Trade
Commercial Solutions
Conservatories
Orangeries
Glazed Extensions
Details
- Year established: 1978
Highlights and features
- We have over 45 years of experience in bespoke glazing solutions.
- Our installations are backed by a comprehensive 10-year guarantee.
- We offer energy-efficient products tested to perform in all environments.
- Our team provides expert maintenance and repair services for all systems.
- We hold industry-leading accreditations, including ISO 9001 and Fensa.
Associations and certifications
- ISO 9001
- ISO 14001
- CHAS
- Fensa
- Constructionline
Services
Windows
Our high-performance windows combine energy efficiency, security, and aesthetic appeal, available in aluminium, PVCu, and timber-hybrid systems. Designed to suit traditional and contemporary properties, they reduce energy bills while maintaining durability. Expert installation ensures seamless integration with your home's architecture.
Bi-Folds
Custom bi-folding doors create seamless transitions between indoor and outdoor spaces, featuring thermally efficient frames and security-focused designs. Available in aluminium or timber-hybrid materials, they maximise natural light and provide year-round thermal comfort for modern living environments.
Garden Rooms
Transform your home with insulated garden rooms and glazed extensions that blend functionality with natural light. Our designs use high-performance materials to ensure year-round usability, offering versatile spaces for dining, relaxation, or work environments connected to nature.
Maintenance
We provide comprehensive maintenance and repair services for all window, door, and conservatory systems, regardless of original installer. Our engineers offer prompt solutions, annual servicing, and access to specialist hardware components through our dedicated trade counter in Cardiff.
Doors
From composite and aluminium entrance doors to sliding and French door systems, our products enhance security and thermal performance. Custom designs ensure compatibility with property aesthetics while meeting modern energy efficiency standards for improved comfort and reduced noise.
Questions
What types of windows do you offer?
We provide aluminium, PVCu, and timber-hybrid windows with options for casement, tilt/turn, and sash designs, all focused on energy efficiency and security.
Do you provide guarantees for your installations?
Yes, all our installations come with a comprehensive 10-year guarantee covering both materials and workmanship.
Can you repair existing windows and doors?
Yes, our maintenance team services all systems regardless of original supplier, including hardware replacement and annual servicing.
Do you serve areas outside Cardiff?
We operate across Wales and the South West, with showroom and trade counter facilities available in Cardiff for local support.
What accreditations do you hold?
We maintain ISO 9001 (quality), ISO 14001 (environmental), Fensa, CHAS, and Constructionline certifications for industry compliance.
Are your products energy efficient?
All systems meet current thermal performance standards, with options designed to reduce energy consumption and improve home insulation.
