Are You Looking for Door & Window Companies in Llanelli?

Seal UPVC Products is a Llanelli-based manufacturer and installer of high-quality uPVC windows and doors, serving South Wales since 1988. We specialise in bespoke solutions for residential and commercial properties, including bi-folding, composite, and aluminium doors. Our FENSA-approved team provides professional installations, repairs, and 10-year guarantees, using 100% recyclable materials to ensure environmental responsibility.

Classic PVC is a Llanelli-based home improvement specialist offering premium uPVC windows, doors, conservatories, and orangeries. Established in 1994, we combine 28 years of experience with Certass-certified installations and a 10-year guarantee. Our services enhance property security, energy efficiency, and aesthetics while serving South and Mid Wales with competitive pricing and no-obligation quotes.

Ambassador Windows specialises in custom-designed windows, doors, and conservatories for residential and commercial properties. With 40 years of expertise, we deliver durable, energy-efficient solutions crafted to exact specifications. Serving South West Wales, we combine professional craftsmanship with competitive pricing to meet diverse client needs.