Caerphilly · Wales

Bath & shower resealing (mastic) in Pengam, Caerphilly

Our repair technicians come to Pengam for bath, shower and sink resealing with new mould-resistant silicone. Everything is done in place, and the work is guaranteed.

  • Old sealant that looks dirty
  • Unsealed corners
  • Black spots in the silicone
Surface Doctor technician refinishing the outside of a roll-top bath

Bath resealing near Pengam

Bath resealing in Pengam without replacing anything

Baths are resealed with water in them, so the joint opens fully, which stops the new seal tearing the first time the bath is used. We regularly repair wet rooms, shower trays & enclosures and kitchen worktops & sinks, and people most frequently call us about old sealant that looks dirty and gaps by the taps.

Big or small, it’s backed by a one-year guarantee.

Where
Pengam (NP12)
Area hub
Caerphilly
Guarantee
One year on every repair
Quotes
Free, fixed quote from pictures
Call
0345 017 0787
Page updated
23 October 2026
Technician in a mask working on a freestanding roll-top bath

What your bath or shower is made of matters

Shower trays

We put weight on a tray before sealing it, so the joint is at its widest.

Sinks and worktops

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

Is resealing worth it?

A professional reseal costs little compared with water damage. It’s a quick job that protects your walls and floors. We do not add extras on the day. What we quote from your photos is what you pay, unless the damage turns out to be different, in which case we talk to you first.

What you get with us

  • We leave the room as we found it
  • We come to you, anywhere in the UK
  • Normally one visit, start to finish
  • No need to remove anything

Read our prices page.

Covering Pengam

Pengam is about 6 miles north of Caerphilly, in Caerphilly. We work in every kind of home, old or new, large or small, as well as offices, shops and holiday lets. Pengam is one of 94 places in Caerphilly we cover. You can also see our page for Birmingham, about 79 miles away.

Our repair technicians cover all of the NP12 postcode area and the streets around it. From High Street, St Deinols Close and Gwern y Sant or anywhere nearby, we can come to you. Neighbouring places we cover include Tir-y-berth (1 mile south-west), Fleur-de-lis (1 mile south), Glan-y-nant (1 mile north-west), Cefn Fforest (1 mile north-east) and Pen-pedair-heol (1 mile west). Further out, we also cover Caerphilly (6 miles south), Risca (7 miles south-east), Trecceln (3 miles east), Newbridge (4 miles east), Beddau (6 miles south) and Trecenydd (6 miles south).

Landmarks near Pengam

Typical jobs here are in homes near Toby Jug pub, Pengam Primary School and Ysgol Gymraeg Gilfach Fargod. You will also find Lewis School Pengam (0.5 miles north) and St Anne's Church (0.8 miles south-west). The nearest railway station is Pengam station, roughly 0.5 miles north-west of the centre. Further afield, we also cover the area around Twyn Castell (1.2 miles west) and Llancaiach Fawr Living History Museum (2.6 miles west). Not far away are Parc Coetir Bargoed.

Map of Pengam © OpenStreetMap contributors

Questions from Pengam

Do you cover Pengam?

Yes, we do. We send a technician to Pengam for every job, with no extra charge for travel.

What information do you need?

Photos of the damage, a picture of the entire bath or shower and your postcode. After that, we just agree a date.

Is it messy?

Very little mess: we sheet and mask everything nearby, and we leave the room clean.

How do I stop mould in sealant?

Mostly moisture and poor ventilation. Mould-resistant silicone and good ventilation help.

How quickly can you book me in?

We’ll give you dates with your quote. If it’s urgent, say so and we will do what we can.

Are there extra charges for Pengam?

Travel is included in the price, with the same prices everywhere we work.

Do you work for landlords and businesses?

We do, regularly. We can quote for several properties together and work between tenancies.

Why does my sealant keep splitting?

Movement is the usual cause. We seal baths full of water.

When we would advise against a repair

It helps to know what we can’t do:

  • Hidden water damage
  • Movement in the bath or tray
  • Gaps so wide they need filling or trims before sealing

Send us pictures and we’ll tell you honestly.

Surfaces we repair

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

Looking after it afterwards

Aftercare is simple:

  • Wipe the joints dry after use
  • Store bottles on a shelf
  • Use the extractor fan
  • Reseal at the first sign of lifting

Run the extractor fan, wipe the joints dry after use, and clean them regularly with a mild cleaner to slow mould growth.

Black mould in sealant isn’t just unsightly, it’s a sign moisture is sitting in the joint. Resealing early keeps water out of the walls and floor.

The process

You don’t need to empty the room beforehand. Everything we use comes in the van with us, lay protective sheets and start once you are happy with the plan. Most jobs take a couple of hours, and you’re welcome to carry on with your day while we work.

  1. We cut out and remove all of the old sealant.
  2. The joint is cleaned and any mould treated.
  3. We dry the joint thoroughly.
  4. For a bath, we fill it with water first so the joint is at its widest.
  5. We run a new bead of mould-resistant silicone and smooth it neatly, including around the taps.

How to prepare

  • Make sure the room can be ventilated
  • Have somewhere for us to park nearby if possible
  • Move bottles, mats and clutter away from the area

Getting a price

No survey visit is needed: we price from pictures. Use the quote form, or ring 0345 017 0787 to talk it through, and we will come back with a fixed figure.

Get a fixed quote

Advice

Landlord and trade work in Pengam

Landlords, letting agents and housing providers in Pengam use us as well as homeowners. A repair between tenants keeps the property empty for less time, and it normally costs far less than a refit.

Builders, developers and site managers book us for snagging repairs, fixing chips and scratches before handover so nothing needs replacing. We are CHAS, Constructionline and SafeContractor accredited.

DIY kit or professional repair?

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.

Kits are cheap and easy to find, but the repairs we redo most frequently are DIY ones that have discoloured or lifted. Getting it right first time is usually cheaper.

When to call us in Pengam

Joints split if the bath or tray moves, frequently because it was sealed while the bath was empty.

These are the problems we’re asked about most:

  • An untidy old seal
  • Discoloured, yellow sealant
  • Black mould in the sealant
  • Gaps by the taps

What your quote should include

  • What happens if they find more damage
  • How long it needs to cure
  • The length of the guarantee and what it covers
  • A fixed quote, and whether VAT is included

Choosing a repair company

CHAS accredited contractor and Constructionline logos SafeContractor, SMAS Worksafe and Builder’s Profile logos

About our accreditations · Every repair comes with a one-year guarantee.

Read what customers say about us on Trustpilot.