Southampton · England

Bath & shower resealing (mastic) in Thornhill, Southampton

Bath, shower and sink resealing with new mould-resistant silicone in Thornhill, carried out at your home and guaranteed for a year.

  • Black spots in the silicone
  • Leaks at the edges
  • Unsealed corners
Surface Doctor technician refinishing the outside of a roll-top bath

Book bath resealing in Thornhill

Resealing in Thornhill: why it matters

A reseal is one of the cheapest bathroom jobs there is. Failed sealant can lead to water damage that is much more expensive. The price depends on the type and amount of damage, what it’s made of and how many jobs we combine into one visit. We give a fixed quote from your pictures, so you know the cost before booking.

What you get with us

  • One-year guarantee on every repair
  • One price list for the entire UK
  • Work done at your home or business
  • Straight answers about what a repair can do

See our full price list.

Bath resealing in Thornhill, done in place

A proper reseal starts with removing every trace of the old silicone. New silicone will not bond to old, which is why so many DIY reseals peel. We are often asked to fix gaps by the taps and silicone smeared on tiles, on baths, kitchen worktops & sinks and wet rooms.

Big or small, you get the same one-year guarantee.

Area
Thornhill (SO19, SO18, SO30)
County
Southampton
Guarantee
12 months on all our work
Quotes
Free and fixed, from your pictures
Phone
0345 017 0787
Page updated
23 October 2026
Technician in a mask working on a freestanding roll-top bath

Materials and what they mean for the repair

Sinks and worktops

We reseal basins, vanity tops and kitchen worktops, once the joint is completely dry.

Shower trays

Trays are sealed with weight on them, so the joint is at its widest.

What we cannot put right

Some jobs are not right for a repair, including:

  • Hidden water damage
  • Very wide gaps that need a trim
  • Loose tiles, which need refixing first

Send us photos and we’ll tell you honestly before you book.

Surfaces we repair

  • Baths
  • Kitchen worktops & sinks
  • Basins & vanity units
  • Wet rooms
  • Shower trays & enclosures

Keeping it looking good

Aftercare is simple:

  • Clean the joints with a mild cleaner
  • Wipe the joints dry after use
  • Reseal when black spots won’t clean off
  • Open a window after bathing

Use the extractor fan, dry the joints after bathing, and give them a regular clean with a mild cleaner to slow mould growth.

Black mould in sealant is not just unsightly, it’s a sign moisture is sitting in the joint. An early reseal keeps water where it belongs.

Landlord and trade work in Thornhill

We regularly work with letting and managing agents. Send the address, photos and access details and we’ll handle the rest.

We regularly price jobs from inventory or check-out pictures. You can have a price before you arrange access, and we liaise with tenants about access if you’d like us to.

What bath resealing costs

We don’t charge extra for travel to Thornhill. The price comes down to:

  • Any earlier repairs that need removing first
  • How hard the colour is to match
  • The material and finish
  • How many areas need work

We charge the same wherever you are, with no extra for Thornhill. What changes the price is the job itself: the material, the amount of damage and how many items.

Send photos for a quote

Two or three clear photos are generally enough. It helps if you send:

  • A photo taken from further back
  • Any details about the material
  • The postcode, so we can plan the visit
  • One sharp close-up of the damage

You don’t need a survey visit. Nearly every job can be priced from photos: we need a close-up, a wider picture and your postcode, and we will reply with a fixed price.

Questions from Thornhill

What do you need from me?

Just pictures, your postcode and a contact number. On the day, access to the room.

How much does bath resealing cost in Thornhill?

The exact price depends on the damage, so we quote from pictures. You will get a fixed figure before you book.

Do you work for landlords and businesses?

Yes, frequently. We quote for multiple addresses and fit around tenancy changeovers.

How do I stop mould in sealant?

Normally poor ventilation and moisture sitting on the joint. We use mould-resistant silicone, and ventilation helps it last.

My seal keeps tearing. Why?

Generally because the bath or tray moves, or it was sealed with the bath empty. We fill the bath before sealing it.

Do you seal over the old sealant?

Never over old. It’s removed, cleaned off and the joint dried first.

How soon can you come?

It depends on the time of year and where you are. We’ll offer you dates when we send your quote.

Do I need to be at home?

Yes. The technician needs access to the room for the visit, at a time we agree with you.

Thornhill and the surrounding area

Thornhill is about 2 miles east of Southampton, in Southampton. Wherever you are in the SO19 postcode area, a technician comes to you. Thornhill is one of 40 towns and villages in Southampton we cover. Our jobs stretch from Thornhill to London (68 miles away).

Our visits in SO19, SO18 and SO30 are booked in the same way as anywhere else. Local streets include Drove Road, Barry Road and Luton Road, and we cover them all. You will find Thornhill on the A334, so it’s easy for us to reach. If you’re just outside Thornhill, we cover Harefield (1 mile north), Sholing (1 mile south-west), Bitterne (1 mile west), West End (1 mile north) and Chartwell Green (1 mile north). Further out, we also cover Shirley (4 miles west), Regents Park (4 miles west), Maybush (5 miles west), Portswood (3 miles north-west), Coxford (5 miles west) and Freemantle (4 miles west). Thornhill is among the bigger towns we cover in Southampton.

What’s near Thornhill

Around Thornhill, we work in homes near Westwood Woodland Park, St Christopher and The Red Lion pub, among other places. Nearby too are Thornhill Primary School (within half a mile west), Grove Park Business and Enterprise College (1.3 miles south) and Woodlands Community College (0.6 miles north). For rail, the closest station is Sholing station, about 1.4 miles south-west. Other landmarks nearby include Moorgreen Hospital (1.4 miles north-east) and Bitterne Local History Society Heritage And Research Centre (1.1 miles west). For a walk, there is Netley Common.

Map of Thornhill © OpenStreetMap contributors

DIY repairs versus a professional job

What a professional repair adds is preparation, colour matching and finishing. We prepare the area properly, mix the colour on site and polish the finish to match, and the work is guaranteed.

It’s natural to want to try a repair yourself. The risk is that a kit repair hides the damage for a while, then fails, and then the old filler has to be removed first.

How it works

We begin by going over the job with you, so there are no surprises. Next, we cover and mask everything nearby and we start. Allow around two hours.

  1. First we strip out every bit of the old mastic.
  2. The joint is cleaned and any mould treated.
  3. The joint is dried thoroughly.
  4. We fill a bath with water before sealing so the gap is at its widest.
  5. New mould-resistant silicone goes on and is tooled to a neat finish, taps included.

Before we arrive

  • Have a window or extractor fan available
  • Move bottles, mats and clutter away from the area
  • Let us know about parking or access

Ask for a price

No survey visit is needed: we price from photos. Send them through the quote form, or call 0345 017 0787 if you’d rather talk it through, and you’ll get a fixed figure back.

Get a fixed quote

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