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Expert Construction & Restoration Services in Thornton
Established over 25 years ago, Longden Building Contractors have built a reputation for excellence in the building trade across Yorkshire and Lancashire. Our commitment to quality and reliability is evidenced by our extensive customer base, many of whom return regularly due to our high standards and honest approach. As registered warranted builders and members of the Federation of Master Builders, we offer work guaranteed under the Masterbond warranty scheme. Our team holds the CITB site safety certificate and is an approved contractor for Polyroof GRP flat roofing systems, providing a 20-year guarantee for domestic and commercial applications.

We collaborate closely with local architects for planning advice and specialize in restoring listed buildings and properties of distinction, including recent church tower restoration projects in the Ribble Valley. Approved by local health authorities, we frequently undertake work for hospitals and health centres. Our services extend to building repairs, extensions, traditional stonework, roofing, plastering, joinery, and electrical/plumbing installations, with a 30-mile service radius covering Skipton, Ilkley, Harrogate, and beyond. We provide free, no-obligation quotations and welcome the opportunity to discuss your project.
Services
Building Repairs Extensions GRP Flat Roofing Restoration Work Loft Conversions Plastering Joinery Conservatory Bases Barn Conversions Traditional Stonework
Highlights and features
  • We have over 25 years of experience in the building trade.
  • Our work is guaranteed under the Masterbond warranty scheme.
  • We specialize in restoring listed buildings and historic properties.
  • Approved contractors for Polyroof GRP flat roofing systems.
  • Local health authority approved for hospital and healthcare projects.
Associations and certifications
  • Federation of Master Builders
  • Polyroof GRP
  • CITB
What people say
Highest standard Knowledgeable craftsman Expert subcontractors Client satisfaction Careful attention
Services
GRP Flat Roofing
Our GRP flat roofing systems offer durable, weatherproof solutions for domestic and commercial properties. Backed by a 20-year guarantee, these roofs combine modern materials with expert installation. Ideal for extensions, conservatories, and flat-roofed buildings, our service ensures long-term performance and compliance with industry standards.
Listed Building Restoration
Specializing in historic properties, we restore listed buildings and structures of distinction with meticulous attention to detail. Our team preserves original features while meeting modern safety requirements. Recent projects include church tower restoration in the Ribble Valley, demonstrating our expertise in heritage conservation.
Building Extensions
We design and construct bespoke extensions tailored to your property and lifestyle needs. From traditional stonework to modern designs, our extensions enhance living space while maintaining structural integrity. Full project management ensures seamless delivery from planning to completion.
Traditional Stonework
Our craftsmen specialize in traditional stonework techniques for repairs, walls, and decorative features. Using authentic methods and materials, we preserve the character of historic buildings while ensuring durability. Services include stone carving, wall rebuilding, and period-appropriate detailing.
Loft Conversions
Transform unused loft space into functional rooms with our conversion service. We handle structural modifications, insulation, and finishing to create extra bedrooms, offices, or living areas. All work complies with building regulations, maximizing your property's value and usability.
People
Simon Longden
Owner
With over 25 years in the building trade, Simon Longden leads Longden Building Contractors, specializing in restoration and construction. His expertise in listed buildings and commitment to quality have earned industry recognition from architects and clients alike.
Questions
What areas do you serve?
We operate within a 30-mile radius covering Skipton, Ilkley, Harrogate, Barnoldswick, and the Ribble Valley, serving both domestic and commercial clients.
Are your services guaranteed?
Yes, we offer a 20-year guarantee on Polyroof GRP flat roofing systems and work under the Masterbond warranty scheme for added assurance.
Do you handle listed building projects?
Yes, we specialize in restoring listed buildings and historic properties, ensuring compliance with heritage regulations while preserving architectural integrity.
Can you assist with planning advice?
We collaborate with local architects to provide planning advice and drawings, ensuring your project meets local authority requirements and design standards.
What services do you offer?
Our services include building repairs, extensions, GRP flat roofing, loft conversions, traditional stonework, plastering, joinery, and electrical/plumbing installations.
Is there a free quotation option?
Yes, we provide free, no-obligation quotations for all projects, with a friendly team ready to discuss your specific requirements.