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.
Coordinate cooling, ventilation and controls with assessed room requirements.
Decide this before construction
Discuss glazing, shading and ventilation before finalising facade or roof openings. Coordinate required service routes before closing internal finishes.
Allow for later maintenance
Keep operating instructions and maintenance agreements for the different systems together. Record where filters and inspection points must remain accessible.
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.

