Before covering old pipework with a new bathroom, ask what can stay, what needs repair and what remains uncertain. A tenement's age does not prove that every pipe is original or that all plumbing must be replaced. These five checks help Glasgow homeowners prepare for a refit and discuss shared supplies, water performance and access with the installer.

1. Describe existing problems and arrange an inspection

Tell the plumber about previous leaks, damp patches, slow drains, unusual noises or changes in the shower's performance. Explain when each problem happens and whether it affects other taps. Keep photographs or records of earlier repairs if you have them. These observations help direct the inspection, but they do not establish the cause. Weak flow, for example, does not by itself prove that a pipe is blocked or made from lead.

Ask which parts can be inspected before work and which are concealed behind existing finishes. No survey can confirm the condition of everything that remains hidden. The quote should explain how further findings will be handled after the old bathroom is removed. Agree that additional repairs are described and priced before proceeding where practicable. This gives you a clearer basis for decisions than a broad promise that every old pipe will be dealt with.

2. Identify shared supplies and responsibilities

Ask whether the flat has shared supply pipes or drainage, and tell the installer about the building's factor and any known access arrangements. Work affecting another flat or a common part of the building needs coordination. Identify who must be contacted before a shut-off or alteration. Do not assume that the pipe visible in your bathroom serves only your home or that its position alone establishes who pays for work.

If lead supply pipework is suspected, use Scottish Water's lead and drinking-water guidance and arrange appropriate investigation. Scottish Water also publishes guidance for shared lead supply pipes. Confirm the actual pipe sections and responsibilities before agreeing replacement work. Replacing short lengths inside the bathroom does not necessarily address a lead supply elsewhere in the building or at its connection.

3. Check the water supply against the new fittings

Give the installer details of the boiler, any cylinder and the shower you want. Ask for pressure and flow to be assessed for the proposed arrangement, including use elsewhere in the home. A large shower head or two simultaneous outlets may need more water than the present setup delivers comfortably. Choosing fittings around the findings is more reliable than buying first and hoping a plumbing adjustment will make them work.

A pump is not a universal remedy for a weak shower. Its suitability depends on the water system and the requirements of the proposed installation. Ask for any pump or supply alteration to be explained separately, including access and maintenance. Our water pressure checklist explains the difference between pressure and flow and the observations that help a plumber investigate the problem.

4. Agree which pipes and fittings will be changed

Ask the plumber to describe the replacement work, materials and connections to pipework that remains. Suitable product selection and correct installation matter more than choosing a material because it sounds modern. The proposal should account for hot and cold supplies, waste routes, supports and access. Keep the shower and basin specifications available so the installation is designed for the products that will actually be fitted.

If the layout is changing, ask how the new waste route affects floors, walls and any shared drainage. Alterations to structure or protected features may need approvals; confirm this before work begins. Our bathroom installation service in Glasgow is the starting point for discussing the full refit. Separate confirmed work from allowances for concealed problems so you understand what the quoted price covers.

Agree how long water and drainage may be unavailable and what that means if the flat has only one bathroom. Let neighbours know about agreed interruptions through the appropriate building contact. Keep shared stairs and access routes clear while materials and old fittings are moved.

5. Keep service access and useful records

Ask where water shut-off valves, traps and other parts that may need repair will be reached after the bathroom is finished. A neat box or panel is only useful if it can be opened for the intended repair. Do not hide access behind permanently fixed furniture. Where possible, keep photographs of the completed pipe routes before they are covered, along with the layout and details of the products installed.

At handover, ask for the shower, taps, drainage and relevant shut-offs to be demonstrated. Keep the installer's contact details, invoices, certificates where applicable and product instructions together. Report leaks or changes in performance promptly rather than repeatedly covering a stain or adjusting unfamiliar components. Call Dream Bathrooms Glasgow on 0141 471 9145 to discuss a tenement bathroom refit, including the building's access arrangements and any plumbing concerns already known.