Bathroom renovation process: which stages matter?

This guide helps you prepare the next steps around your renovation in the Zurich region in a structured way. Explore renovation.

Where does planning a bathroom renovation begin?

A bathroom renovation in the Zurich region starts with a survey: how large is the room, how old are the pipes and waterproofing, which connections exist, and what should be different at the end? Clarify these questions before choosing materials or scheduling dates. A realistic assessment of the starting condition prevents surprises during the work. Fedenko supports you with the project assessment.

Why is waterproofing the most important step?

Waterproofing protects the floor, walls and adjoining rooms from moisture. It is applied after demolition and before the new wall and floor build-up, and must suit the intended tile format and installation. Waterproofing errors often only show months later — as water stains on the ceiling below or mould behind the tiles. This step is non-negotiable.

What must be considered with pipes and connections?

Existing water and waste pipes, electrical connections and ventilation must be checked before the new build-up. Old pipes made of lead or corroded steel should be replaced during the renovation while access is already open. Plan the position of the washbasin, shower, WC and any washing machine before laying pipes — subsequent changes are costly and disruptive.

What role does ventilation play in a bathroom?

Good ventilation reduces moisture, prevents mould and extends the life of joints and surfaces. Check whether an extract fan is present, whether it works and whether it is adequately sized. In bathrooms without a window, mechanical ventilation is especially important. During a renovation it is worth replacing or retrofitting the fan while the ceiling is open anyway.

What matters when choosing tiles?

Choose tiles not only for appearance but also for slip resistance, ease of maintenance, format and replacement availability. Large-format tiles look spacious but need a perfectly level substrate and experienced installation. Small formats are more forgiving of unevenness. Make sure floor tiles in the wet area have a slip-resistant surface — this is a safety issue, not an aesthetic one.

How do I choose fixtures and sanitary fittings?

Taps, washbasin, WC and shower set should suit the existing connections and be available long-term — for spare parts and repairs. Clarify dimensions, mounting type and installation height before tiling so that cut-outs and connections are correct. In a rental apartment, discuss changes to sanitary fittings with the property manager beforehand.

Which stages belong to a bathroom renovation?

A bathroom renovation starts with a review of the existing room and a realistic discussion of the intended result. Sequence, access, materials and works are then considered. Clarify building-law requirements with the owner or responsible authority.

How should a bathroom renovation be planned?

Good planning first clarifies use, existing condition, connections, storage, surfaces and access to the apartment. Then come demolition, pipe inspection, waterproofing, wall and floor build-up, tiling, grouting and fitting. The sequence matters: waterproofing must suit the intended build-up before tiles and fixtures are installed. Choose tiles, lighting and sanitary fittings not only for appearance but also for maintenance, format and replacement availability. Good ventilation helps reduce moisture in daily use.

Can I stay in the apartment during renovation?

This depends on the scope, the availability of a second bathroom and whether water or electricity work is involved. Discuss access, dust protection, usage interruptions and a realistic sequence early. Do not commit to fixed durations without a project assessment; materials, condition and coordination all affect the schedule. In a rental apartment, discuss changes with the property manager in advance. This makes expectations and practical constraints visible early.

How do I manage a temporary bathroom solution?

During renovation the bathroom is not available. Clarify in advance whether a second bathroom in the apartment is usable, whether neighbours or a temporary arrangement can help, and how long the interruption will last. Discuss with the renovation team a sequence that keeps the water outage as short as possible. In a rental apartment, inform the property manager in good time about planned works and possible disruptions.

What is a sensible sequence of works?

The typical sequence for a bathroom renovation is: survey, planning, demolition, pipe inspection, waterproofing, wall and floor build-up, tiling, grouting, fitting sanitary ware and fixtures, painting and final inspection. Each step builds on the previous one — changing the order risks rework. The founders of Fedenko bring over 15 years of renovation experience and coordinate the works in the Zurich region from a single source.

What should I check after the renovation is complete?

After completion, check all connections for leaks, test taps, drains, flush and ventilation. Inspect joints, silicone seals and transitions at walls and floors. Record any defects in writing and with photos and discuss them promptly with the contractor. A thorough inspection protects against later surprises.

What are the options if the bathroom is out of use during work?

A bathroom renovation that involves plumbing work or floor replacement will make the room unusable for a period — typically one to three weeks depending on the scope. If the apartment has a second bathroom or a guest WC, daily life continues with some inconvenience. If it does not, plan ahead: ask neighbours whether occasional access is possible, check whether your building has a shared facility, or arrange temporary accommodation for the most intensive phase. Discuss the sequence with the renovation team so that the toilet is reconnected as early as possible, even if finishing work continues around it. Knowing exactly which days the bathroom will be offline helps you plan meals, showers and routines without last-minute surprises.