Basement Conversions
Secure, dry & liveable lower ground transformations
Our basement conversions deliver dry, structurally secure and naturally lit lower ground spaces through robust waterproofing design, ventilation planning and precise temporary works coordination.
What\'s Included
Feasibility & soil assessment liaison
Delivered with compliance and quality assurance.
Temporary works & underpin sequencing
Delivered with compliance and quality assurance.
Waterproofing design (Type A/B/C)
Delivered with compliance and quality assurance.
Drainage & sump integration
Delivered with compliance and quality assurance.
Mechanical ventilation & dehumidification
Delivered with compliance and quality assurance.
Egress & natural light solutions
Delivered with compliance and quality assurance.
Key Benefits
- High-value floor area gain
- Moisture & structural risk mitigation
- Multi-functional layout potential
- Future services flexibility
Delivery Process
Feasibility & Desk Study
Review constraints, soils info & planning parameters.
Design & Engineering
Coordinate structural scheme, waterproofing & ventilation.
Excavation & Temporary Works
Managed underpinning / propping maintaining stability.
Shell & Waterproofing
Apply membranes / integral systems & drainage details.
Fit Out & Commission
Services, finishes & performance validation.
FAQs
Will a basement need planning permission?+
Often yes for excavation or external alterations; we assess policy and advise early on risk and timing.
How do you control damp risk?+
Layered waterproofing strategy (e.g. combined Type A + C), ventilation design and moisture monitoring during cure.
Ready to discuss basement conversions?
Book a consultation – we'll assess feasibility, outline options and provide a transparent starting cost band.