Professional installation of new drain systems for homes, extensions and small developments. We handle connections, correct fall and venting, and deliver compliant, long-lasting installations across Hampshire, Berkshire and surrounding areas.
Our Services
Drain Installation
About This Service
Drain Installation Specialists with 8 Years Experience
Local customers praise our tidy, reliable installations and quick response - proof of the workmanship we deliver. FlowStream Drainage Group installs new drain systems for homes, extensions and small developments, managing connections to existing networks while ensuring correct fall and venting to current regulations. Each job uses CCTV diagnostics where needed and is backed by up to a 2-year guarantee, completed by experienced engineers with modern plant.
Our Process
How It Works
Site Survey & Diagnostics
We carry out a site visit and, where needed, a CCTV survey to map existing drainage, confirm levels and identify optimal connection points.
Design & Permits
We prepare a straightforward installation plan showing pipe runs, falls, venting and connections, and advise on compliance with Building Regulations.
Installation & Handover
Our team installs using appropriate materials and plant, pressure-tests or CCTV-checks the new runs, tidies the site and issues documentation and guarantees.
Benefits
Why Choose us for Drain Installation?
Workmanship you can trust
Experienced drainage engineers deliver installations to current regulations with correct fall and venting, reducing future maintenance and failure risk.
Clear diagnostics, fewer surprises
CCTV surveys and level checks ensure we connect to the right point and avoid unnecessary excavation — you get a precise plan and honest recommendations.
Rapid, reliable service with guarantees
Same-day responses for urgent projects, modern plant for efficient installation and up to a 2-year guarantee for long-term confidence.
Complete drain installation for properties and small developments. Whether laying a new run for an extension, replacing a collapsed branch or connecting a new development to the existing network, FlowStream Drainage Group handles the full scope: excavation, pipework with correct fall, venting, rodding points and final connection to the public or private system.
We work to current regulations and best practice: that means fall and venting designed to prevent long-term blockages, pressure testing where required and a tidy reinstatement of surfaces. For a survey or to discuss access and build sequencing, call +44 7934 732046.
FAQ
Frequently Asked Questions
Yes. We arrange and complete connections to public sewers or existing private systems as required. Where a sewer connection needs consent, we advise on the application process and coordinate with the sewerage undertaker to ensure compliance.
We use level surveying and established drainage principles to set gradients that promote flow and prevent siltation. Venting positions are specified to prevent siphoning and odour issues, and all details meet current Building Regulations and best practice guidance.
Yes — a pre-install CCTV survey is recommended where ties into an existing system are planned. It confirms pipe condition, alignment and connection points so we can avoid surprises during excavation and provide an accurate design.
Installations are backed by up to a 10-year guarantee depending on the scope of work. We also provide documentation of the works, test results and any manufacturer guarantees for materials used.
Timescales vary by site access, ground conditions and connection complexity. A straightforward run for an extension usually completes within a few days, while works involving deep excavations or third-party consents take longer. We provide a clear programme at the quote stage.
Book a Drain Installation Survey
Arrange a site visit and site-specific plan. Same-week appointments often available across Hampshire, Berkshire and the surrounding towns.