Our services include:

We carry out soakage testing across the South East of the UK.

A BRE365 soakage test may be required to be carried out as part of your planning application. This test is a crucial aspect of design for any project that intends to use infiltration to manage surface water on site.

We will carry out the test at a time that suits you and provide you with a detailed report.

We provide Flood Risk Assessments across Sussex & Kent.

We assess flood risk from all relevant sources —fluvial or tidal, surface water, groundwater, and reservoir—using the latest data and national policy guidance.

We  specialise in management of surface water (SuDS) and flood risk, providing drainage schemes for residential new builds and extensions over 25 square metres to meet planning requirements.

We deliver innovative solutions that meet the unique needs of our clients as well as prioritising sustainability.

We assist in making diversion and new connection applications to Southern Water. 

We help you to make informed, confident decisions early in the design and planning process to avoid delays and higher costs down the line.

We work closely with architects, planners, and developers to ensure that drainage and flood risk strategies are considered early and aligned with sustainable, practical outcomes. 


At HGC, we strive for excellence in the quality of our services using engineering and mathematical principles, environmental sustainability, and commercial awareness.

We adhere to professional codes of conduct and prioritise health and safety in line with the Construction Design Management Regulations 2015 (CDM2015).

As a Chartered Civil Engineer (MEng CEng MICE) with the Institution of Civil Engineers, Christian is fully qualified and competent to deliver these services that meet the standards of all UK planning authorities, water companies, and regulators.

You can be assured that our services are delivered to the highest quality, in full alignment with current industry standards and legislation.

Services