Need reliable Groundwork Contractors in Balham for a build, extension or garden project? We handle everything from site clearance and excavation to drainage, concrete work and retaining walls—done properly, first time.
Response within 24 hours
From garden rooms to rear extensions, good groundwork is what keeps everything stable and dry. Our team works across SW12, including around Balham station and Bedford Hill, preparing sites safely and efficiently. We carry out site clearance, excavation, levelling and access roads to suit your programme. Every job is planned to protect neighbouring boundaries and keep disruption under control.
Balham’s Victorian terraces, Edwardian houses and mansion conversions often come with tight side access and shared party walls. In areas like Nightingale and Balham Hill, we regularly deal with stepped gardens, old drains and mixed ground conditions. That’s why our groundwork contractors Balham area approach starts with careful set-out and levels. We coordinate with your builder, architect or engineer to ensure foundations and drainage align with the design.
You’ll get a clear scope, staged schedule and tidy working practices from day one. We provide methodical excavation, concrete work and retaining walls, with photographs and updates as the job progresses. Our team is fully insured, and our workmanship is backed by a 10-year warranty for peace of mind. Homeowners choose us for straightforward communication and dependable results—especially when access and timing are tight.
Working in the London Borough of Wandsworth means considering parking controls, skip permits and delivery access on busy roads like Balham High Road. Many properties have narrow entrances and limited storage space, so we plan spoil removal and material drops carefully. Ground conditions can vary from made ground in older gardens to heavier clay, affecting drainage and foundation depths. Our groundwork contractors in London Borough of Wandsworth adapt methods and sequencing to keep your project compliant and on track.
Rated 4.9/5 from over 280 verified reviews
Costs vary with access, spoil removal, foundation depth and drainage complexity. As a guide, small groundwork packages (site clearance, minor excavation and basic concrete base) often start around £1,500–£4,000. Extension foundations and drainage commonly fall in the £6,000–£18,000 range, while larger multi-stage projects can exceed £25,000. We provide a detailed, itemised quote after a site visit in SW12.
Timescales depend on scope and access. Simple clearance and levelling may take 1–3 days, while excavation and concrete bases typically take 3–7 days including curing time. Foundations and drainage for an extension often run 1–3 weeks, especially if inspections are required. Factors such as restricted access, wet weather, hidden services and spoil cart-away logistics around SW12 can extend programmes.
Many garden and driveway groundwork elements are permitted development, but it depends on what you’re building and how water is managed. For example, new or altered driveways may need compliant permeable surfacing or drainage to a suitable soakaway rather than the street. If you’re excavating for an extension, Building Control requirements will apply for foundations and drainage. We’ll flag likely permissions and help you check Wandsworth rules before work starts.
We provide a 10-year warranty on our workmanship for installed groundworks such as concrete bases, drainage runs, retaining walls and properly prepared sub-bases. The warranty covers defects caused by installation issues, subject to normal use and maintenance. It doesn’t cover damage from third-party alterations, extreme events, or design changes outside our scope. You’ll also receive documentation of what was installed and where, for future reference.
We tailor the build-up to your finish and how you use the space. Options include reinforced concrete slabs for garden rooms, Type 1 sub-bases for patios and driveways, French drains and soakaways for surface water, and blockwork or reinforced retaining walls for level changes. For access roads and temporary haul routes, we can install stabilised stone layers to protect the site. We’ll recommend the right specification based on ground conditions, loading and drainage needs.
Get your free, no-obligation quote today.