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Business Details
37 Years
experience
Trusted Roofing Contractors in Leicester
Cassie Thomas & Sons has been a trusted name in the roofing and cladding industry for over three decades. Our expertise spans both new build and refurbishment projects, serving a diverse clientele including local authorities, healthcare providers, educational institutions, and multinational corporations. We pride ourselves on delivering tailored solutions that meet the evolving demands of the commercial, industrial, and public sectors. Our team combines traditional craftsmanship with modern methodologies to ensure durability, safety, and aesthetic excellence. With a focus on innovation, we utilise BBA-certified materials and cutting-edge techniques such as drone surveys to enhance project efficiency.

All operatives are CSCS-certified, and our supervisors hold SSSTS or SMSTS accreditations, reflecting our commitment to health and safety. We maintain full insurance coverage and adhere to rigorous risk assessments, ensuring every project meets the highest standards. Our membership with the NFRC and accreditations like Safe To Torch underscore our industry credibility. From initial design consultation to project completion, we prioritise client collaboration, transparency, and cost-effectiveness. With a proven track record across the UK, we continue to build long-term partnerships founded on reliability and technical excellence.
Services
Flat Roofing Metal Cladding Slating & Tiling Leadwork Drone Survey Asbestos Cement Removal
Details
  • Year established: 1989
Highlights and features
  • We have over 30 years of experience in commercial, industrial, and public sector roofing projects.
  • Our operatives are CSCS-certified, and supervisors hold SSSTS or SMSTS accreditations.
  • All projects undergo rigorous risk assessments and adhere to health and safety standards.
  • We maintain full insurance coverage and industry accreditations including NFRC membership.
  • Our BBA-certified materials and technical expertise ensure long-lasting, high-quality solutions.
Associations and certifications
  • NFRC
  • Safe Contractor
  • CHAS
  • Constructionline GOLD
  • Safe To Torch
What people say
Immaculate quality Completed ahead of schedule Expertise Cost-effective solutions Reliable
Services
Flat Roofing
We install BBA-certified flat roof systems using high-performance materials like torch-on felts, PVC membranes, and liquid coatings. Our experienced teams ensure watertight, durable solutions for commercial and industrial buildings. With 30+ years of expertise, we deliver cost-effective installations compliant with industry standards.
Metal Cladding
Our metal cladding services include insulated composite panels, standing seam systems, and rainscreen facades. We use factory-formed and site-rolled materials in steel, aluminium, and coated finishes. Bespoke fabrication ensures precise fit and aesthetic appeal for industrial and commercial structures.
Drone Survey
We deploy drone technology for accurate, non-invasive roof surveys. This method reduces costs and risks associated with traditional scaffolding-based inspections. High-resolution imagery aids in identifying defects, planning maintenance, and streamlining project timelines for large or complex buildings.
Slating & Tiling
We install natural slate and manmade tiles compliant with BS 5534 standards. Our BBA-accredited systems combine traditional craftsmanship with modern materials. Services include leadwork integration and solar PV installations, ensuring longevity and energy efficiency for residential and commercial properties.
Leadwork
We fabricate and install leadwork for pitched roofs, including valleys, flashings, and traditional lead roofs. All works follow Lead Sheet Association guidelines. Our certified teams ensure watertight, durable solutions that meet heritage and modern building requirements.
Questions
What services does Cassie Thomas & Sons offer?
We specialise in flat roofing, metal cladding, slating, tiling, leadwork, drone surveys, and asbestos cement removal for commercial, industrial, and public sector clients.
Are your operatives certified and insured?
All operatives are CSCS-certified, supervisors hold SSSTS/SMSTS accreditations, and we maintain full insurance coverage for all projects.
How do you ensure project safety and compliance?
We conduct rigorous risk assessments, adhere to LSA guidelines, and employ IOSH/NEBOSH-certified consultants to ensure compliance with health and safety standards.
Do you provide warranties for your work?
Yes, we offer 15–25-year warranties on flat roof systems, depending on the selected product or system.
Can you handle large-scale public sector projects?
Yes, we have extensive experience working with universities, councils, and healthcare providers on complex refurbishment and new build projects.