Stormwater Drainage & Subsoil Drains
Protect your Property, Protect Your Peace of Mind
Persistent run-off water, pooling, soggy lawns and damp foundations can cause costly damage and disrupt daily living. With over 30 years of experience, Alpha Plumbing’s PIRB-registered plumbers design and install tailored drainage systems that restore balance, prevent damage and safeguard your property for the long term.
Why Drainage Matters
In Gauteng, seasonal downpours and clay-rich soils often reveal hidden drainage issues. Left unchecked, excess water can:
- Weaken building foundations and lead to structural cracks
- Damage paving, driveways and landscaping
- Cause mould, damp and foul odours
- Lower the long-term value of your property
- Waste valuable rainwater that could otherwise be harvested and reused
Alpha Plumbing delivers drainage solutions that don't just fix the surface problem – they address the cause, ensuring sustainable protection and uninterrupted living.
What You Can Expect with Alpha Plumbing
When you partner with Alpha Plumbing, you receive a comprehensive, professional service that puts your peace of mind first:
On-site assessment: every property is unique, so we start with a full soil and site evaluation
Custom solutions: drainage designs are tailored to your property’s topography and needs
Professional grading: we correct ground falls and ensure water flows where it should
Neat installation: from trenching to finishing, our teams leave your space tidy and functional
Long-term protection: our systems are built to last, and backed by a five-year guarantee
Don't wait for water damage to worsen. Protect your property today.
Our Drainage Solutions
We offer a full suite of stormwater and subsurface drainage services across Johannesburg and Pretoria:
- Stormwater drainage systems to redirect surface run-off water and prevent flooding
- Subsoil drainage installations that remove groundwater to protect structures and landscaping
- CCTV drain camera inspections for diagnosis of malfunctioning stormwater drains
- Jet blastingof stormwater drains clogged by sand or debris
- Repair and replacement of stormwater drains
- Rainwater harvesting: integrated system design to capture and store excess rainwater for sustainable living
All our drainage systems are designed and installed by PIRB-certified plumbers, in line with SANS standards and best practices.
We’re trusted by institutions such as the South African Institution of Civil Engineering (SAICE) and are proud members of IOPSA, PIRB, WPC, IRHA and AWS – giving you confidence that our solutions meet the highest professional and sustainability standards.
Helpful Tips & Advice on Stormwater Issues
Even before drainage problems become obvious, there are steps you can take to protect your property:
Walk your property after a downpour. Standing water near walls, foundations or paving often points to hidden issues.
Damp smells, mould near skirting boards or cracks in paving are often drainage-related, not just cosmetic.
Blocked or misaligned gutters can overload stormwater systems, causing overflow and pooling.
Adding soil, paving or garden features without considering slope can unintentionally trap water.
The longer water sits, the higher the risk of damage to foundations and underground pipes. Prompt action usually means a simpler, more affordable fix.
FAQs – Stormwater & Subsurface Drainage
High groundwater, poor slope (ground fall), clay-rich soils or blocked stormwater drains are common culprits in Johannesburg and Pretoria.
Perforated pipes wrapped in geotextile fabric are installed underground to collect and redirect excess water away from foundations.
Persistent puddles, damp basements, water stains, soggy lawns, or cracks in paving and walls are key red flags.
Yes – structural damage, damp and mould can significantly reduce your property’s value if left untreated.
Routine checks keep systems clear of debris and performing efficiently. Talk to us about scheduled maintenance plans.
Yes – we provide a five-year workmanship guarantee on all drainage system installations.
Absolutely. Our team includes PIRB-registered plumbers and engineers, and we comply with SANS codes and industry regulations.
By redirecting and harvesting water where possible, our systems reduce waste and support responsible water management.
Our team responds promptly and will schedule an on-site assessment at your earliest convenience.
Call us on 010 001 8364 or WhatsApp us on 082 336 9783 to arrange a site visit.
Real Stories from Our Drainage Clients
Backed by 400+ five-star reviews, customers across Johannesburg and Pretoria highlight Alpha Plumbing’s reliability, service excellence and professionalism.
Our Stormwater & Subsoil Drain Work
