MAC SERVICES
Drainage
The external spaces of any development – from car parks and pathways to boundary walls and drainage systems – form the critical interface between buildings and their environment.
Our expertise spans all aspects of hard landscaping and water management. For hardstanding surfaces, we construct durable, high-performance solutions including block-paved driveways, tarmacadam car parks, and resin-bound pedestrian walkways. Each is designed with integrated falls and gradients to ensure effective surface water runoff, preventing pooling and ice formation in winter months. We pay particular attention to material selection, using premium aggregates and binding materials that withstand heavy traffic while maintaining their appearance over time.
Boundary treatments form another key element of our externals work. Our retaining walls and perimeter structures are engineered for long-term stability, incorporating features such as weep holes and proper backfill to prevent water pressure build-up. Where visual impact matters, we offer a range of facing materials from traditional brick and stone to contemporary rendered finishes, seamlessly blending practical engineering with architectural vision.
Drainage forms the hidden but essential backbone of all external works. Our team designs and installs complete foul and surface water systems, from simple yard gullies to complex adoptable drainage networks complying with Section 38 and Section 104 standards. We incorporate sustainable drainage solutions (SuDS) where appropriate, including permeable paving, attenuation tanks and swales to manage runoff naturally.
Every project benefits from our rigorous quality control processes, including CCTV drainage surveys and pressure testing to guarantee system integrity. With MAC Group Ltd, you gain a partner committed to delivering externals and drainage solutions that stand the test of time – combining robust construction with intelligent design to create spaces that work as hard as they look good.
Key features of our service:
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Complete design and installation of hardstanding surfaces
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Engineered boundary walls and retaining structures
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Fully compliant foul and surface water drainage
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Sustainable drainage solutions (SuDS) integration
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Quality assurance through comprehensive testing
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Adoption-ready systems for public realm projects
”We work with MAC because they take ownership of their work. Their quality is excellent, they are flexible, proactive and they stand by their promises. They are able to work to specification, they bring the best tools and labour for the job and they do this within timescales, hitting deadline we require. Whether a short or long-term project, the work is cost-effective and always completed to the highest standards.
Chris MannProject Manager, O’Boyle Brothers
WHY MAC GROUP?
The MAC Group Drainage Service Advantage
Drainage design and installation that form the unseen structural integrity to any successful development; it can help to protect the development and asset from unnecessary water ingress, reduce environmental impact, provide safety in surface water flow and storage, and alleviate the public network and services from unwanted load or back pressure.
MAC Group Ltd has expertise in hardstanding, fencing, kerbs, drainage systems, all adopted standard within the public realm. However, the main difference is our holistic approach in how all these interact, with drainage at its heart. Our drainage systems are purpose-built to last and include the following benefits:
01. A System First Approach for Total Solution Integration
Our drainage services include the system planning and design approach to integrate with all other aspects of the external works process; drainage is not standalone, and we design from the start in conjunction with all the hard landscaping and external works and services included with your project.
System Design All In One:
Our systems are designed with correct falls and gradients from the initial stage to ensure surface water does not puddle or not move away from the proposed hardstanding area to allow fast runoff. We work from hardstanding up and back to the drainage; all three elements are placed in conjunction with one another to connect as one.
Hardstanding to Drainage to Surface:
We lay permeable, hardstanding wearing courses connected to constructed engineered retaining walls with correctly engineered backfill to allow for correct water run off. These hardstanding areas are also installed with the correct falls and connected to an underground drainage network we install below.
Design for Problem Prevention:
Our drainage system is proactive by avoiding water build up or standing on hard standing areas by correctly designing it with the same holistic approach we use in conjunction with the construction of external works such as kerbs, channel drainage, retaining walls and boundary fencing. This helps in both time and cost to avoid post-fixing of landscaping services that may not have been considered in the surface water drainage plans.
02. Sustainable Solutions Expertise with Adopted Standards
Expertise in applied engineering standards combined with sustainable natural water management techniques to deliver the best possible compliant solution.
Engineering Guarantees to Adoptable Standards:
We specialise in adopted standards foul and surface water drainage design and installation to the highest standard to ensure your development or asset meets all required regulation for drainage that connect into the public network.
SuDS Integration Leadership:
We have particular expertise in the integration of Sustainable Drainage Solutions (SuDS) systems such as permeable paving, attenuation tanks and swales to enable natural flow and attenuation of water to be dispersed across the development rather than to the public network, with a view to reducing planning impacts or water attenuation conditions on the main drainage systems.
Best Approach for Your Site:
Our cross-discipline expertise in all types of water management enable us to best understand which mix of traditional and sustainable water management is most suitable and efficient for your site and its particular challenges.
03. Engineered Certainty with Years of Future Performance
We go the extra mile to ensure every system is built to the highest standard, providing you with the confidence it will perform to the highest standard.
System Validation with CCTV and Pressure Testing:
As part of our quality control processes, we conduct CCTV drainage surveys and pressure test on all systems installed to ensure the integrity and watertightness of all underground drainage connections. This also avoids any potential issues or remedial costs for future landscaping works.
Built with Long-Lasting Materials:
We only use high-specification aggregates, binding materials and components for drainage including systems to ensure all paved and built areas can take heavy traffic and bad weather, with a prolonged service life.
Partner for Asset Resilience:
We like to work with our clients as partners to help them understand the value of building with drainage as the underlying system, in that it helps in the longevity and safety of the entire asset. Our solutions are designed to “stand the test of time” so you can be sure your asset and water management systems have the greatest protection and efficiency for the future.
”With any project, dates move and timelines of project change. With MAC, their flexibility sets them apart from other paving contractors. Their labourers are professional, personable and trustworthy. Their attention to detail and commitment to quality & health safety makes them a very reliable supplier and I won’t hesitate to recommend MAC Group.
Shaun GillSenior Operations Manager, McArdle SportTec
PORTFOLIO
Our Latest Projects
SmartParc Plot 6A, Derby
SmartParc Plot 6A, Derby
SmartParc Plot 6A, Derby
Melton Business Park, Hull
Melton Business Park, Hull
Melton Business Park, Hull
Orwell Logistics Park, Ipswich
Orwell Logistics Park, Ipswich
Orwell Logistics Park, Ipswich
MAC GROUP LTD SERVICES
