Cardiff · Wales

Bath & shower resealing (mastic) in Newton, Cardiff

Bath resealing for Newton, without a refit. Get a fixed price from your photos, then we come to you.

  • Discoloured, yellow sealant
  • Water getting behind the bath or tray
  • An untidy old seal
Surface Doctor technician refinishing the outside of a roll-top bath

Bath resealing for Newton homes

How we handle bath resealing in Newton

A fresh seal protects your bathroom. Failed sealant lets water get where it shouldn’t, and a new seal stops it. If you’re dealing with missing sealant behind the taps and black spots in the silicone, we can usually put it right.

A one-year guarantee comes as standard.

Where
Newton (CF3)
County
Cardiff
Guarantee
One year on every repair
Price
Fixed and free, based on photos
Call
0345 017 0787
Last updated
23 October 2026
Technician in a mask working on a freestanding roll-top bath

Looking after it afterwards

Good habits make a big difference to how long a repair lasts:

  • Use the extractor fan
  • Reseal when black spots won’t clean off
  • Open a window after bathing
  • Keep the joints dry

Don’t scrape the sealant with anything sharp, and keep shampoo bottles off the joints.

Mouldy sealant is more than a cosmetic problem. An early reseal keeps water where it belongs.

Questions from Newton

What if the damage is worse than the photos show?

We will show you and explain before doing anything extra. Nothing extra is done without your say-so.

Do you hold any accreditations?

Yes, including CHAS, Constructionline and SafeContractor. The full list is on our accreditations page.

Do you work for landlords and businesses?

Yes. We carry out repairs for homeowners, landlords, letting agents, builders and businesses across Cardiff.

Do you cover the entire of Cardiff?

We cover the entire UK, including Newton and the rest of Cardiff. Send your postcode with your pictures and we will offer you dates.

Is repairing better than replacing?

In most cases, yes. Replacement brings removal, refitting and making good, which a repair avoids. If it isn’t worth repairing, we will tell you.

My seal keeps tearing. Why?

Something is moving. If it keeps happening, the support may need fixing.

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.

How soon can you come?

Your quote comes with available dates. Tell us if you need it done quickly.

What bath resealing costs

We give every job a fixed quote from pictures. This is what makes a difference:

  • How many areas need work
  • Any earlier repairs that need removing first
  • What the surface is made of
  • Where the damage is and how we get to it

Compared with replacing, repairing generally costs far less, because there is no removal, plumbing or making good. Your fixed quote shows exactly what’s included.

Send photos for a quote

A couple of clear pictures is all it takes. It helps if you send:

  • Daylight if possible, and no flash reflection
  • A wider photo showing the entire bath or shower
  • What it’s made of, if you know
  • Something in shot to show the size

For a price in Newton, pictures are the quickest way: a close-up, a wider shot and your postcode. You will get a fixed quote with dates to choose from.

Is resealing worth it?

Resealing costs very little, and it protects everything around the bath. Failed sealant can lead to water damage that is much more expensive. Rather than charging by the hour, we price the entire job up front. It depends on the damage, the material and access, and combining items on one visit brings it down.

What you get with us

  • CHAS and Constructionline accredited
  • A year’s guarantee on all work
  • Technicians who travel to you, UK-wide
  • One visit for most repairs

Take a look at our pricing.

DIY kit or professional repair?

You can buy a DIY kit for most repairs, and they can make a small mark look better. Where they fall down is colour and preparation: they come in a handful of shades, and if the surface is not prepared the repair won’t last.

The difference between a kit and a professional repair is mostly in the preparation and colour. We prepare the area properly, mix the colour on site and polish the finish to match, and the work is guaranteed.

Materials and what they mean for the repair

Baths

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

Shower trays

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

What a repair cannot fix

It helps to know what we can’t do:

  • Rotten walls or floors behind the bath
  • Movement in the bath or tray
  • Loose tiles, which need refixing first

Send us pictures and we’ll tell you honestly.

Materials we repair

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

Landlords, agents and businesses in Newton

Rental properties take more wear, and replacing things at every changeover adds up. Repairing between tenants keeps the property presentable for less.

Builders use us to fix snagging damage before handover. We can visit several plots in one trip.

What we do, step by step

You do not need to empty the room beforehand. We bring everything we need with us, put protection down and get going once we’ve agreed what we’re doing. It usually takes around two hours, and you can get on with other things while we’re there.

  1. We protect the area and mask the joint lines.
  2. We remove the old sealant and every trace of residue.
  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.

Preparing for the visit

  • Clear toiletries, mats and anything else from around the area
  • Let us know if it has been repaired before
  • Ensure the area is dry

How to get a price

We price from photos so you do not have to wait in for a survey. Send them through the quote form, or call 0345 017 0787 if you’d rather talk it through.

Send photos for a quote

Read more

Newton and the surrounding area

Newton is about 3 miles north-east of Splott, in Cardiff. We work in every kind of home, old or new, large or small, plus businesses and rented homes. We work in 91 places across Cardiff.

Postcode districts we cover here: CF3. Nearby, we also work in Pwll-mawr (1 mile west), Trowbridge (1 mile north-west), Rumney (2 miles west), St Mellons (2 miles north) and Tremorfa (2 miles west). Further out, we also cover Cardiff (4 miles west), Ely (7 miles west), Castle (4 miles west), Adamsdown (3 miles west), Roath (3 miles west) and Splott (3 miles south-west).

Landmarks near Newton

Our customers here include homes close to Trowbridge Primary School and Eastern High School, among other places. The closest station to Newton is Cardiff Queen Street station, about 3.4 miles west. Other landmarks nearby include Cardiff Royal Infirmary (3 miles west) and Firing Line: Cardiff Castle Museum of the Welsh Soldier (3.9 miles west). The countryside around Newton includes The Mount and Roath Park Lake.

Map of Newton © OpenStreetMap contributors
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.