Drainage plays a critical role in the success of any development.
It shapes how water moves through the site, protects buildings from damage, and ensures long-term safety for residents and businesses. When done poorly, the results can be costly – from surface water flooding to erosion and blocked systems. In short, effective drainage design is a crucial element of responsible construction, particularly as rainfall patterns become increasingly unpredictable.
At N&G Groundworks, we provide groundworks drainage services that meet strict technical and environmental standards. Our experience across Dorset, Somerset and Devon has shown that early planning, smart design and quality construction are essential to managing flood risk on site.
Protecting developments begins before construction starts
Drainage design should begin as early as possible in the planning process. Once roads, plots and landscape features are in place, options become more limited, and early engagement helps identify challenges such as clay soil, shallow water tables, or limited outfall routes. It also gives time to secure technical approvals and coordinate with water authorities or highways teams.
A well-designed system reduces surface water runoff, protects surrounding areas, and meets the conditions set out by planning authorities. Waiting too long to address flood prevention in development often leads to expensive changes, delayed approvals and longer build times.
Sustainable drainage systems (SuDS) now lead the way
Sustainable urban drainage systems (SuDS) are a vital part of new development strategy. Designed to mimic natural water movement, SuDS help control flow rates, improve water quality, and reduce pressure on public networks. Common features include swales, filter drains, retention ponds and underground attenuation tanks.
Our team has delivered SuDS schemes for a wide range of sites, adapting designs to suit urban plots, rural developments and sloping ground. From working on large housing estates to single commercial builds, we construct systems that meet both planning conditions and real-world use.
Drainage solutions built for long-term performance
No two sites behave the same way in heavy rain. What works in one location may fail in another. At N&G Groundworks, we design and install drainage systems to match site-specific risks and conditions. This includes foul and surface water separation, integration with SuDS features, and careful routing of pipework to prevent future maintenance issues.
On recent projects, we’ve installed wet well pumping stations to move water on sloped developments, and constructed reinforced concrete aprons with integrated drainage for high-traffic commercial sites. Each solution is built with durability in mind and in full compliance with current regulations.
Groundworks drainage services from start to finish
We handle all phases of drainage installation – from excavation and trenching to pipe laying, manhole construction and system testing. Our team also reinstates surfaces and coordinates with other trades to keep schedules moving. As part of our service, we assist with local authority liaison and ensure all works meet the required specification for adoption or handover.
Our groundworks drainage expertise extends to managing complex layouts and tight deadlines, especially on multi-phase developments or constrained urban plots. Every system is installed with care and clarity, ensuring it performs reliably from the first day of use.
Helping developers build safer, compliant sites
For developers, working with a contractor who understands both the technical and environmental aspects of drainage is critical. Poor water management can delay projects, damage infrastructure, and lead to long-term liabilities. N&G Groundworks brings practical experience, regional insight and a clear focus on quality to every job.
If your next project requires expert support with drainage design or flood prevention in development, we’re ready to help. Our team works across the South West to deliver systems that keep sites dry, safe and built for the future.
Posted on July 11th 2025
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