Bathroom Sealant Resealing Guide

Scope of Works

• Survey joints, note movement gaps and any underlying water damage.

• Drain and dry the bath/shower area; protect adjacent finishes.

• Slice out existing silicone, scrape residue and apply chemical remover.

• Treat black mould with fungicidal spray; rinse and alcohol-wipe surfaces.

• Mask tile and tub edges for a crisp 3–4 mm bead.

• Gun sanitary-grade, anti-mould silicone in one continuous pass.

• Tool bead smooth, peel tape, ventilate area and issue cure-time guidance.

• Bag and remove waste off-site if agreed.

  
  

Typical Cost (inc. VAT)

Time on Site

About 1–2 hours per bath or shower tray. May extend if joints are heavily contaminated, multiple sides require resealing, or panels/trims must be removed for access.

Questions to Ask Your Tradie

1. Which sanitary-grade silicone brand and colour will you use, and is it mould-resistant?

2. Is complete removal of old sealant included in the quoted price?

3. How long must the area stay dry before we can bathe or shower again?

4. Do you mask joints for a clean line and provide a workmanship guarantee?

5. Will you supply and fit new trim caps or end stops if existing ones break?

6. Are you insured for accidental damage to tiles, enamel or acrylic?

7. Does the quoted cost cover parking, congestion or disposal fees?

   
   

How to Avoid Surprises

• Access & Lighting: Clear toiletries, shower screens and provide bright task lighting.

• Dry Surfaces: Ensure the area is fully dry before the technician arrives.

• Parking: Reserve a space close to the property or supply a visitor permit.

• Ventilation: Open windows or run an extractor so fumes can disperse.

• Weighting the Bath: Agree whether the tub will be filled during sealing (prevents joint tearing later).

• Hidden Damage: Flag any spongy floors or leaking tiles that may need extra repair work.

  
  

All prices are indicative mainland-UK ranges for 2025 and include VAT.