From supply-only and professional fitting to commercial project support, we help trade customers across the South of England deliver with confidence.
Supplying The Trade Across The South Of England
At Capital Building Plastics, we’re more than a supplier — we’re your trade partner, providing quality products, flexible service options, and reliable support to help you deliver exceptional results on every project. Whether you’re a sole installer, a developer, or a large contractor, we have the right solution for you.
Supply Only
Quality Products, Delivered When You Need Them
Our supply-only service is ideal for trade professionals who prefer to manage their own installations. With on-site warehousing and a well-established distribution network, we keep a wide range of UPVC building plastics, doors, windows, and consumables in stock and ready for quick dispatch.
- Large stock of fascias, soffits, trims, cladding, and gutters
- Doors and windows from leading UK brands, including Camden
- Fast turnaround and reliable delivery across the South of England
- Trade pricing and dedicated account support
Supply & Fit
Complete Service, Hassle-Free
For customers looking for a turnkey solution, our supply and fit service provides everything from product selection and measurement to professional installation. Backed by decades of experience from our parent company Capital Garage Doors, our installation teams deliver exceptional workmanship and attention to detail.
- Free site surveys and expert advice
- Installation by fully trained professionals
- All products fitted to manufacturer standards
- Backed by product and installation guarantees
Commercial Projects & New Builds
Scalable Solutions for Developers and Contractors
At Capital Building Plastics, we specialise in supporting commercial and residential developments across the South of England, working in partnership with builders, contractors, and project managers to deliver large-scale installations on time and within budget.
- Bulk supply and tailored pricing for trade and commercial accounts
- Camden Windows and Doors — energy-efficient, sustainable, and backed by a 15-year guarantee
- Capital Garage Doors – a trusted name in automation, security, and style since 1978
- Flexible delivery options for multi-site and phased developments
- Dedicated project coordination and technical support for every stage of the build
- Sustainable product options made with up to 80% recycled materials
Whether you’re managing a new-build housing project, commercial installation, or refurbishment scheme, Capital Building Plastics ensures consistent quality, dependable logistics, and proven trade expertise from start to finish.
Areas Covered
Proudly Serving the South of England
From our base in the South East, we support trade professionals throughout the South of England — including London, Kent, Surrey, Sussex, Hampshire, Essex, and surrounding areas.
With a strong logistics network and responsive trade support, you can count on Capital Building Plastics to deliver when and where you need us.
Sales & Distribution
Explore a full range of Camden windows and doors alongside garage doors and entrance doors in a dedicated display environment
Trade Counter
Visit Us for Expert Advice and Same-Day Collection
Our trade counter is open to installers, builders, and contractors who need quick access to stock, friendly advice, and exclusive trade-only pricing.
- Wide range of stock items ready for collection
- Knowledgeable team offering product advice and guidance
- Easy ordering for account customers
- Convenient location with on-site parking
Why Partner with Us?
Your Trusted Trade Supplier
At Capital Building Plastics, we combine decades of industry experience with a commitment to quality, service, and sustainability.
Partnering with us means you benefit from:
- A trusted name backed by Capital Group (est. 1986)
- Exclusive Camden windows and doors with a 15-year guarantee
- Sustainable, UK-sourced products with high recycled content
- Competitive trade pricing and reliable delivery
- A friendly, knowledgeable team dedicated to your success