Cornwall · England
Bath & shower resealing (mastic) in Trewen, Cornwall
Bath resealing for Trewen, without a refit. Get a fixed quote from your photos, then book a visit.
- Old sealant that looks dirty
- Black spots in the silicone
- Gaps in the seal

About our bath resealing in Trewen
Baths, trays, basins and kitchen worktops all get resealed. Most jobs take a couple of hours. Common call-outs are for mould you can’t clean out and a messy previous reseal, in kitchen worktops & sinks, wet rooms and shower trays & enclosures.
The work is covered for a year after we finish. Just call us if there’s a problem and we’ll come back.
- Where
- Trewen (TR11)
- Area hub
- Cornwall
- Warranty
- One year on every repair
- Quotes
- Free and fixed, from your pictures
- Call
- 0345 017 0787
- Updated
- 23 October 2026

How we price bath resealing
Prices are worked out job by job, from your pictures. What matters most is:
- Access to the area
- Whether it’s a chip, crack, burn or wear
- Previous DIY repairs that have to come out
- What the surface is made of
The price reflects the work involved, not where you live. The full price is agreed before you book, with nothing added on the day.
How to get a fixed price
We price nearly every job from pictures. This is what we need:
- The postcode, so we can plan the visit
- The material, if you know it
- Whether it’s been repaired or coated before
- A coin or ruler next to the damage for scale
Email us photos of the damage and a wider shot of the whole item, with your TR11 postcode, and we’ll come back with a fixed quote.
Also near Trewen
More services for Trewen
Work for landlords and builders
We also carry out snagging repairs for builders and developers, putting right damage done during fitting so nothing needs replacing. We’re CHAS, Constructionline and SafeContractor accredited.
Hotels, guest houses and holiday lets can’t afford rooms out of action for long, so we keep visits short and tidy. We can work around your bookings.
Is resealing worth it?
Resealing is a small job. Putting off a reseal lets water get behind the bath or tray, and that damage costs much more to fix. Set against the cost of replacement, a repair is normally a fraction of the price, because there is no removal, plumbing or making good. The quote lists exactly what you’re paying for.
Why choose Surface Doctor in Trewen
- Every repair guaranteed for a year
- Accredited with CHAS, Constructionline and SafeContractor
- One visit for most repairs
- Rooms protected and left tidy
Take a look at our prices page.
Different materials, different repairs
Sinks and worktops
We reseal basins, vanity tops and kitchen worktops, once the joint is completely dry.
Baths
Baths are resealed with water in them, to open the joint fully.
Keeping it looking good
Most damage we see is avoidable. These habits help:
- Dry the seal after bathing
- Use the extractor fan
- Reseal when black spots won’t clean off
- Clean the sealant gently and regularly
Let it cure fully before using the bath or shower, generally around 24 hours.
If you notice damp, stains on the ceiling below or loose tiles, act quickly. There may be more going on, and we’ll say if you need a builder or plumber.
When we would advise against a repair
Honesty matters more than a booking, so here’s what a repair will not do:
- Water damage behind the bath that needs a builder
- Loose tiles, which need refixing first
- Very wide gaps that need a trim
Not sure? Send pictures and we’ll give you a straight answer before you book.
Surfaces we repair
- Shower trays & enclosures
- Wet rooms
- Baths
- Basins & vanity units
- Kitchen worktops & sinks
Do you need bath resealing in Trewen?
Sealant doesn’t last forever. Each shower leaves moisture and soap behind, which mould loves, and the joint moves slightly every time the bath is filled.
Look out for any of the following:
- Gaps by the taps
- A messy previous reseal
- Water getting behind the bath or tray
- Silicone coming away from the tiles
What to look for in a quote
- Whether the price is fixed and includes VAT
- What preparation is included
- Who will actually do the work
- How soon you can use it again
Trewen questions
Can you repair something that’s been repaired before?
Typically, yes. The old repair comes out first, so mention it when you send photos.
How quickly can you book me in?
It depends on the time of year and where you are. We’ll offer you dates when we send your quote.
Why does mould come back so fast?
Mould needs moisture. Ventilation and drying keep it clean longer.
Is there any odour?
There can be some smell while we work, so we ventilate the room. It fades as everything cures.
What happens once I’ve sent photos?
You get a fixed price and available dates. If we need another angle, we will ask.
How much does bath resealing cost in Trewen?
We give a fixed price based on pictures of the damage. Send a close-up of the damage and a wider photo and your postcode.
Do you do work for letting agents?
Yes. We carry out repairs for homeowners, landlords, letting agents, builders and businesses in Trewen.
Is it safe with children and pets around?
Yes, as long as they stay out of the room we are working in. We will tell you when the room can be used again.
Trewen and nearby
Trewen is about 1 mile south-west of Falmouth, in Cornwall. Customers in Trewen get the same service as everywhere else we cover: a fixed quote from photos, and a technician at your door on the day. Trewen is one of 644 places in Cornwall we cover.
Every address in TR11 is within our area. Jobs here include addresses on Trewen Road and Parc Stephney and the roads around them. Neighbouring places we cover include Budock Water (1 mile north), Bareppa (1 mile south), Carlidnack (1 mile south), Mawnan Smith (2 miles south) and Kernick (2 miles north). Within a short drive, we also cover Truro (9 miles north), Camborne (10 miles north-west), Redruth (8 miles north-west), Helston (8 miles west), Hayle (14 miles west) and Rosewarne (10 miles north-west).
Landmarks near Trewen
In Trewen, that means homes near Falmouth School, Church of Saint Budock and St Francis CofE Primary School, among other places. Trewen’s nearest station is Penmere station, roughly 1.2 miles north-east of the centre. Nearby you’ll also find Penryn Museum (1.9 miles north) and St Mawes Castle (3.7 miles east).
What happens on the day
Nothing needs to be moved out of the room beforehand. Everything we use comes in the van with us, put protection down and get going once we have agreed what we are doing. It usually takes around two hours, and you can get on with other things while we are there.
- We protect the area and mask the joint lines.
- Old sealant and residue are removed.
- We clean, treat and dry the joint.
- We run a continuous bead of new silicone.
- The bead is smoothed, the tape removed and the seal left to cure.
How to prepare
- Let us know if it has been repaired before
- Let the surface dry out before the visit
- Let us know about parking or access
How to get a price
Getting a quote takes a couple of minutes: photograph the damage, then the entire bath or shower, add your postcode and send them over. You’ll get a fixed price, not an estimate.
Related advice
About our accreditations · Every repair comes with a one-year guarantee.

