Business Details
17 Years
experience
Trusted Roofing Materials Supplier in Larne
Established in 2009, J Long and Son Ltd has become a leading supplier of high-quality roofing materials across Ireland and the UK. With over 25 years of industry experience, our team sources directly from quarries in Northwest Spain to ensure premium natural slate and guttering products at competitive prices. We provide comprehensive support from project conceptualisation to completion, including free site surveys, costings, and recommendations. All products meet BS/EN A1, S1, T1 standards and come with manufacturer guarantees, complemented by our company's written guarantee of up to 100 years. Our commitment to quality is evidenced by over 780 successful roof installations with no reported issues.We pride ourselves on maintaining direct relationships with quarries to eliminate intermediaries, ensuring both cost efficiency and product excellence. Our portfolio includes prestigious projects such as Stormont Castle and the Ulster Folk and Transport Museum. Customer satisfaction remains our priority, reflected in our consistent delivery of promised timelines and specifications. Our expertise extends to both private and commercial projects, offering tailored solutions for diverse architectural requirements. This combination of experience, quality assurance, and client-focused service positions us as trusted specialists in the roofing materials sector.
Services
Natural Roofing Slate
Clay Tile Supply
Guttering Products
Project Consultation
Site Surveys
Cost Analysis
Commercial Roofing
Residential Roofing
Details
- Year established: 2009
Highlights and features
- We offer 25+ years of specialist roofing industry expertise
- Direct quarry sourcing eliminates intermediaries for cost efficiency
- 100-year written company guarantee on all slate products
- BS/EN A1, S1, T1 standard compliance for all materials
- Free project consultation including site surveys and costings
Associations and certifications
- CE Assured
- EN Certified
- NF Certified
What people say
Excellent quality
Very reasonable price
Honest and reliable
Best value and quality
Excellent customer service
Services
Natural Roofing Slate
Premium Spanish natural roofing slate sourced directly from quarries in Northwest Spain. Available in multiple including Zamora, DC X1, and Santiago ranges. CE-assured with 100-year durability guarantees. Ideal for both heritage restoration and modern architectural projects requiring long-lasting, weather-resistant roofing solutions.
Clay Tile Supply
High-performance clay tile solutions including Visum 3 and Planum ranges. Engineered for superior thermal insulation and aesthetic appeal. Available in various colours and dimensions to meet diverse architectural requirements. Complies with BS/EN A1, S1, T1 standards for fire resistance and structural integrity.
Guttering Products
Comprehensive architectural guttering systems designed for optimal water management. Includes PPC Guttering and other high-capacity solutions. Engineered to complement natural slate roofs while ensuring efficient rainwater disposal for residential and commercial properties.
Project Consultation
End-to-end project advisory services from conceptual design to completion. Offers free site surveys, building reports, and cost analysis. Specialised in complex roof geometries and heritage building requirements. Ensures material specifications match structural and aesthetic needs.
Commercial Roofing
Dedicated commercial supply chain solutions for contractors and builders. Includes volume pricing, delivery scheduling, and product certification documentation. Supports large-scale developments with consistent material quality and guaranteed supply timelines.
People
Jonathan Long
Director
25+ years' experience in the roofing industry with expertise in natural slate sourcing and project management. Formerly employed by major roofing companies, now leading direct quarry operations in Spain to ensure product quality and cost efficiency.
Questions
What types of roofing materials do you supply?
We specialise in CE-certified Spanish natural slate, clay tiles, and architectural guttering systems. Our product range includes Zamora, DC X1, and Santiago slate varieties in multiple dimensions.
Do your products come with guarantees?
All materials include manufacturer guarantees plus our company's written assurance of up to 100 years. Products meet BS/EN A1, S1, T1 standards for quality and durability.
Can you supply materials outside Northern Ireland?
We deliver throughout the UK and Republic of Ireland. Our distribution network ensures timely delivery to both trade and private customers across all regions.
Do you provide technical support for roofing projects?
Yes, we offer free site surveys, building reports, and cost analysis. Our team provides technical guidance from project conceptualisation through to completion.
How do you ensure product quality?
We personally visit Spanish quarries to select materials, maintaining direct quality control. Products undergo rigorous testing to meet European standards before reaching customers.
What payment methods do you accept?
We accept major credit/debit cards and bank transfers. Payment terms for trade customers can be arranged through our sales team.
