Swansea · Wales

Bath & shower resealing (mastic) in St Thomas, Swansea

Our repair technicians come to St Thomas for bath, shower and sink resealing with new mould-resistant silicone. Everything is done in place, with a one-year guarantee.

  • Silicone smeared on tiles
  • Mould you can’t clean out
  • Damp near the bath
Surface Doctor technician refinishing the outside of a roll-top bath

Book bath resealing in St Thomas

How we handle bath resealing in St Thomas

A proper reseal starts with removing every trace of the old silicone. Fresh sealant doesn’t stick to old, which is why so many DIY reseals peel. We regularly repair shower trays & enclosures, baths and kitchen worktops & sinks, and people most frequently call us about gaps by the taps and silicone smeared on tiles.

You are covered for a year from the day of the repair. If anything is not right, ring us and we’ll come back.

Where
St Thomas (SA1)
County
Swansea
Cover
One year on every repair
Quotes
Free and fixed, from your pictures
Phone
0345 017 0787
Page updated
23 October 2026
Surface Doctor technician refinishing the outside of a roll-top bath

St Thomas questions

How long does resealing take?

A bath or shower typically takes a couple of hours. Leave it to cure before use.

Can you repair something that is been repaired before?

Generally, yes. Tell us what was done before and we will plan for it.

Can you price it without visiting?

Yes, almost always. A close-up and a wider photo are enough to give a fixed price.

How do I stop mould in sealant?

Mould needs moisture. Run the fan, dry the joints and the new seal stays cleaner for longer.

How quickly can you book me in?

That depends on our diary for your area. Send photos with your postcode and we will reply with the earliest dates.

Will it make a mess?

Dust sheets and masking go down before we start, and we clean up when we have finished.

Do I need to be at home?

Someone needs to let us in and show us the job. After that, you can carry on with your day.

Are you accredited?

We’re accredited with CHAS, Constructionline, SafeContractor, SMAS Worksafe and Builder’s Profile.

How we price bath resealing

Each job gets its own fixed quote. These are the things that affect it:

  • How hard the colour is to match
  • The material and finish
  • Whether we combine several jobs
  • How easy the damage is to reach

No two jobs are quite the same, so we price each one individually. What’s damaged, how badly and how easy it is to reach all play a part, and doing several things on one visit costs less than separate visits.

Send pictures for a quote

Most quotes are done from pictures alone. To help us price it:

  • Something in shot to show the size
  • One sharp close-up of the damage
  • Your postcode, so we can check dates
  • Natural light rather than flash

For a price in St Thomas, the easiest route is pictures: a close-up, a wider shot and your postcode. We reply with a fixed quote and our next available dates.

Should I try a DIY kit first?

The difference between a kit and a professional repair is mostly in the preparation and colour. We clean and key the area properly, mix the colour to your surface and finish it to the same sheen, and the work is guaranteed.

We understand the appeal of fixing it 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.

Aftercare tips

Simple care helps the repair last. We recommend:

  • Run the extractor fan during and after showers
  • Do not stand toiletries on the seal
  • Replace the seal when mould sets in
  • Keep the joints dry

Leave the sealant to cure for the time we give you, normally about a day.

Reseal before water gets in. Gaps or lifting edges mean it needs doing.

Materials and what they mean for the repair

Sinks and worktops

We reseal basins, vanity tops and kitchen worktops, with the joint fully dried first.

Baths

Baths are resealed with water in them, so the joint is at its widest.

What happens on the day

On the day, we arrive at the time we have agreed, cover the area with dust sheets and masking, and set to work. The job usually takes about two hours for a bath. We tidy up before we leave and tell you when it’s ready to use.

  1. The surrounding area is protected and the joints masked.
  2. Old sealant and residue are removed.
  3. The joint is cleaned, treated and dried.
  4. We run a continuous bead of new silicone.
  5. The bead is smoothed, the tape removed and the seal left to cure.

Getting ready for the visit

  • Clear the area around the damage
  • Let us know about parking or access
  • Tell us about any previous repairs or coatings

How to get a price

For most jobs, pictures are all we need to give you a price. Add a line about what happened and your postcode, and we’ll reply with a fixed quote and the earliest dates we have.

Get a fixed quote

Related advice

Do you need bath resealing in St Thomas?

Black mould is the most common reason people reseal. It grows into the silicone, so cleaning only removes the surface.

Customers typically contact us about:

  • Gaps by the taps
  • Leaks at the edges
  • An untidy old seal
  • Silicone coming away from the tiles

Comparing quotes

  • What happens if the damage is worse than the pictures show
  • Who turns up on the day
  • Whether the colour is mixed to match
  • How soon you can use it again

10 questions to ask before you book

Honest limits

A few problems are outside what a surface repair can do:

  • Gaps so wide they need filling or trims before sealing
  • Water damage behind the bath that needs a builder
  • Hollow or loose tiles

If in doubt, send pictures and we will say what we think.

Materials we repair

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

Resealing in St Thomas: why it matters

Resealing costs very little. Failed sealant can lead to water damage that is much more expensive. Set against the cost of replacement, a repair is normally a fraction of the price, because nothing has to be taken out, refitted or made good. The quote lists exactly what you are paying for.

Why book with us

  • One visit for most repairs
  • We will tell you if it’s not worth repairing
  • Repair technicians who travel to you, UK-wide
  • We leave the room as we found it

See our full price list.

St Thomas and nearby

St Thomas is about 1 mile east of Greenhill, in Swansea. We agree a date that works for you, and you’ll know when to expect us, so you are not left waiting in all day. We work in all 153 towns and villages across Swansea, from the larger towns to small villages.

All of SA1 is within our area, from the main roads to the quietest streets. Jobs here include addresses on Dupre Road, Morris Lane and Kilvey Road. Being close to the A4067, St Thomas is easy for our technicians to reach. Neighbouring places we cover include Foxhole (1 mile west), Port Tennant (1 mile south-east), Waterfront (1 mile south), Hafod (1 mile west) and Pentrechwyth (1 mile north). Within a short drive, we also cover Morriston (3 miles north), Gorseinon (6 miles north-west), Llwchwr (6 miles west), Mumbles (4 miles south-west), Penderry (3 miles north-west) and Norton (5 miles south-west).

What’s near St Thomas

We visit homes around St Thomas Community Primary School, Church of Saint Thomas and The Victory (Village Hotel). You’ll also find Dynevor School (1.1 miles south-west), Pentrehafod School (0.9 miles north-west) and Cwm Level Park (1.4 miles north-west). The closest station to St Thomas is Swansea station, roughly 0.8 miles west of the centre. Well-known places in the area include The Tramshed (0.9 miles south-west) and Mount Pleasant Hospital (1.2 miles west). Green spaces nearby include Pluck Lake and Kilvey Hill.

Map of St Thomas © OpenStreetMap contributors
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