Business Details
Emergency
services
Your Trusted Partner for Drainage & Construction Solutions
Established as a leading provider of integrated solutions, Semilong Services delivers expert drainage, civil engineering, roofing, and construction services across Northamptonshire, Buckinghamshire, and Bedfordshire. With over a decade of local experience in roofing and a strategic 2024 reorganisation into The Semilong Services Group, we combine technical excellence with innovative methods to address diverse client needs. Our team of qualified professionals prioritises efficiency, sustainability, and minimal disruption, offering tailored services from emergency drainage solutions to large-scale infrastructure projects.Backed by accreditations including CHAS Elite and Cyber Essentials, we provide workmanship guarantees, premium materials, and 24/7 emergency support. Our commitment to community impact ensures every project enhances the spaces where people live and work, supported by industry-recognised safety standards and client-centric transparency.
Services
Drainage
Civil Engineering
Roofing
Construction
Tankering
CCTV Surveys
Drain Repairs
Roof Installations
Infrastructure
Maintenance
Highlights and features
- We offer 24/7 emergency drainage services with rapid response times
- Our team holds CHAS Elite and Cyber Essentials accreditations
- We provide workmanship guarantees and extended warranties
- We use premium materials from reputable manufacturers
- Approved by Anglian Water and local authorities for compliance
Associations and certifications
- CHAS
- Cyber Essentials
- SMAS Worksafe
- CSCS
- NADC
- Safe Contractor
- NFRC
- PQS
- Achilles
- Constructionline
What people say
Absolute star
Great customer service
Highly recommended
Top Man
Brilliant team
Services
Drainage Services
We provide emergency, reactive, and preventative drainage services including drain cleaning, unblocking, and CCTV surveys. Our Van Packs and Jetvacs resolve internal and external blockages efficiently. Sustainable solutions cover septic tank installations and culvert cleaning, with licensed waste disposal services.
Civil Engineering
Specialising in UK infrastructure development, we deliver rail, road, water, and energy projects. Our expertise includes flood protection schemes, pavement design, and multi-utility services. Projects combine technical excellence with timely delivery for public and private sector clients.
Roofing Services
Offering residential and commercial roofing solutions across the Midlands, we handle repairs, installations, and refurbishments. Services include flat/pitched roofing, Velux installations, and guttering using premium materials. Workmanship guarantees ensure long-term durability and client satisfaction.
Construction Services
We deliver design-and-construct and construct-only projects for commercial, educational, and domestic properties. Services range from new builds to extensions, with specialist expertise in healthcare and industrial sectors. Innovative methods ensure cost-effective, sustainable outcomes.
Tankering Services
Our tankering services manage liquid waste disposal, pump station cleaning, and septic tank emptying. As licensed waste carriers, we handle oil interceptor cleaning and culvert maintenance, ensuring environmental compliance and operational efficiency for industrial clients.
People
Sean Hogan
Director
Leading Semilong Services' strategic direction, Sean brings extensive industry experience to ensure technical excellence and client satisfaction across all service lines.
Sully Elliot
Chief Operating Officer
Overseeing daily operations, Sully ensures seamless project delivery while maintaining compliance with safety and quality standards across the organisation.
Cahal Hurrell
Quantity Surveyor
Cahal manages cost control and financial planning for major projects, ensuring budget adherence without compromising on quality or safety standards.
Paul Steedman
Business Development & Transport Manager
Paul drives business growth while coordinating logistics for our fleet of specialist vehicles across drainage and construction operations.
Carrie Harris
Customer Relations Manager
Carrie ensures exceptional client experiences, managing feedback channels and service quality improvements across all departments.
Questions
What areas do you cover for drainage services?
We serve Northamptonshire, Buckinghamshire, and Bedfordshire with rapid-response drainage solutions for residential and commercial properties.
Are your engineers available for emergencies?
Yes, our 24/7 emergency service ensures technicians arrive within 30 minutes for urgent drainage or roofing issues.
Do you offer guarantees on roofing work?
All roofing services include workmanship guarantees and extended warranties on materials for long-term peace of mind.
Can you handle large-scale infrastructure projects?
Our civil engineering team delivers niche and large-scale infrastructure projects including rail, road, and water sector developments.
Are your services environmentally sustainable?
We prioritise sustainable practices in drainage solutions, construction methods, and waste management processes across all operations.
How do you ensure service quality?
Through CHAS Elite accreditation, Cyber Essentials certification, and continuous staff training to maintain industry-leading standards.
