Business Details
17 Years
experience
Trusted Roofing Slate Suppliers in Larne, Northern Ireland
Established in 2009, J Long and Son Ltd has become a leading supplier of high-quality roofing materials across Northern Ireland, the UK, and the Republic of Ireland. With over 25 years of industry experience, our founder Jonathan Long has worked with major companies and contributed to landmark projects such as Stormont Castle and the Millennium Theatre in Londonderry. Our expertise extends to the direct import and supply of Spanish natural roofing slate and architectural guttering products, sourced through regular visits to quarries in North West Spain to ensure premium quality and competitive pricing.We offer comprehensive support from project conceptualisation to completion, including free site surveys, building reports, and costings. All products meet BS/EN A1, S1, T1 standards and come with manufacturer guarantees, complemented by our own 100-year written guarantee on slates. Our commitment to quality is evidenced by over 780 completed roofs with zero reported issues. We maintain strong relationships with two of Spain's largest quarry suppliers, ensuring consistent product excellence and customer satisfaction.
Services
Spanish Slate Supply
Clay Tile Supply
Guttering Products
Roofing Accessories
Project Consultation
Site Surveys
Building Reports
Cost Estimation
Details
- Year established: 2009
Highlights and features
- We have over 25 years of specialist experience in the roofing industry.
- Our team personally selects products from Spanish quarries to ensure quality.
- We offer free site surveys, building reports, and costings for all projects.
- All products come with a 100-year company-written guarantee on slates.
- We have completed over 780 successful roofing projects with zero reported issues.
Associations and certifications
- British Standards Institution (BSI)
What people say
Excellent quality
Very reasonable price
Honest and reliable
Best value and quality
Excellent customer service
Services
Spanish Natural Roofing Slate
We supply premium Spanish natural roofing slate directly sourced from quarries in North West Spain. Our products meet BS/EN A1, S1, T1 standards and come with manufacturer guarantees. Each slate undergoes rigorous quality checks to ensure durability and aesthetic consistency for residential and commercial projects.
Clay Tile Supply
Our Visum 3 clay tiles offer durable, aesthetically pleasing roofing solutions with competitive pricing. These tiles combine traditional craftsmanship with modern manufacturing standards, providing long-lasting performance for various building types across the UK and Ireland.
Guttering Products
We provide architectural guttering systems designed to complement our roofing materials. Our products ensure efficient water management while maintaining visual harmony with slate or clay tile roofs for both new builds and restoration projects.
Project Consultation
From conceptual planning to project completion, we offer expert guidance including free site surveys, building reports, and cost estimations. Our team ensures material selection aligns with structural requirements and aesthetic preferences for optimal results.
Site Surveys
We conduct detailed site surveys to evaluate roof structures and recommend appropriate materials. This service ensures accurate quantification and pricing for slate or tile requirements, minimising waste and optimising project budgets.
People
Jonathan Long
Owner
With over 25 years in the roofing industry, Jonathan has worked with major companies and contributed to landmark projects like Stormont Castle. He established J Long and Son Ltd in 2009, leveraging his expertise to deliver quality materials and service.
Questions
What guarantees do you offer on your roofing products?
All our slates come with a 100-year written guarantee, and products meet BS/EN A1, S1, T1 standards with manufacturer-backed warranties.
Do you supply materials outside Northern Ireland?
We deliver across the UK, Republic of Ireland, Scotland, and Wales, maintaining the same quality and service standards for all regions.
How do you ensure product quality from quarries?
Our team personally visits Spanish quarries regularly to inspect production processes and select materials that meet our strict quality criteria.
Can you assist with project-specific requirements?
Yes, we provide free site surveys, building reports, and costings to tailor solutions for residential, commercial, or heritage projects.
What slate sizes and types are available?
We offer Santiago (600x300mm), DC X1 (500x250mm), La Bana (500x250mm), and Zamora slates, along with various clay tile options.
