What this work involves
Investigate the cause of problems and establish the existing drainage route before choosing replacement work.
- Investigation and pipe routes
- Connections and inspection points
- Floor and ground reinstatement
Use the following design considerations when coordinating this service with a wider project. Agree which parts apply to your request.
Reassess ventilation when airtightness or insulation changes.
Decide this before construction
Address assessed causes of defects before new finishes conceal them. Plan comfort measures together with ventilation and necessary access to building services.
Allow for later maintenance
Update the maintenance record after each phase. Keep photographs of concealed elements and note which investigation questions remain open.
Cost factors for this service
Costs depend on pipe route, access, investigation and repair extent. Ask for the scope and selected specification to be described separately.
Bring this to the discussion
Photographs of the existing situation, available drawings and your requirements for drains, sewers & drainage repairs. Identify the elements that should remain.
Questions about the work
What should I discuss before arranging drains, sewers & drainage repairs?
Recurring blockages can have causes beyond accumulated debris. Investigation helps establish whether cleaning, local repair or replacement is appropriate.
The design situations here illustrate choices; they are not completed projects or a diagnosis of your property.

