Cornwall · England
Bath & shower resealing (mastic) in Trevithal, Cornwall
Our repair technicians come to Trevithal for bath, shower and sink resealing with new mould-resistant silicone. Everything is done in place, and the work is guaranteed.
- An untidy old seal
- Black spots in the silicone
- Water getting behind the bath or tray

Materials and what they mean for the repair
Sinks and worktops
Basins, vanity units and kitchen worktops are resealed too, with the joint fully dried first.
Baths
We fill the bath before sealing, so the joint is at its widest.
Bath resealing in Trevithal, done in place
A good reseal is all about preparation: every bit of old silicone out, mould treated, the joint clean and dry. Only then does the new sealant go on, in a neat, continuous bead. Our repair technicians work on kitchen worktops & sinks, wet rooms and basins & vanity units, and people most frequently call us about a messy previous reseal and unsealed corners.
A one-year guarantee comes as standard.

- Where
- Trevithal (TR19)
- Region
- Cornwall
- Warranty
- One year on every repair
- Quotes
- Free and fixed, from your photos
- Call
- 0345 017 0787
- Updated
- 23 October 2026
Landlord and trade work in Trevithal
Housing associations and facilities teams use us for planned and reactive repairs in Cornwall and across the UK. A repair avoids taking out and refitting, which matters when someone is living in the home.
Rental properties take more wear, and replacing things at every changeover adds up. A repair between tenancies is a cheaper way to keep the property in good order.
The process
Expect a friendly, tidy visit. We confirm the time with you beforehand, cover and mask the work area, then carry out the work, which normally takes a couple of hours. If anything looks different from your pictures, we will talk to you before going ahead.
- We protect the area and mask the joint lines.
- We remove the old sealant and every trace of residue.
- The joint is cleaned, treated and dried.
- Fresh silicone is applied in a continuous bead.
- The bead is smoothed, the tape removed and the seal left to cure.
How to prepare
- Mention any earlier repairs or resurfacing
- Open a window if you can
- Let the surface dry out before the visit
Getting a price
A quote takes minutes to ask for: take one close-up and one wider shot of the bath or shower, add your postcode and send them to us. You’ll get a fixed quote, not an estimate.
Read more
How to care for the repair
Once the work has cured, treat it gently:
- Use the extractor fan
- Open a window after bathing
- Clean the joints with a mild cleaner
- Reseal when black spots will not clean off
Keep the room well ventilated, and wipe the joints after use to keep mould away.
Do not wait until water gets behind the bath. Gaps or lifting edges mean it needs doing.
Other services in Trevithal
What bath resealing costs
There is no area surcharge for Trevithal. The price reflects:
- Whether it’s a chip, crack, burn or wear
- Previous DIY repairs that have to come out
- Doing more than one item at once
- How many areas need work
The price reflects the work involved, not where you live. The full price is agreed before you book.
Send photos for a quote
Good pictures mean an accurate price. Here’s what helps:
- What it’s made of, if you know
- One picture of the entire bath or shower
- The postcode, so we can plan the visit
- A coin or ruler next to the damage for scale
The quickest way to a price is to send two or three pictures using our quote form or ring us. We’ll say straight away whether it can be repaired.
Questions from Trevithal
Can pets and children be at home?
Yes, as long as they stay out of the room we’re working in. We’ll let you know when it’s safe to use again.
Which areas do you work in?
Everywhere in the UK, Trevithal included. There’s no extra charge for travel.
Can you reseal over the old silicone?
We always remove the old sealant completely. New silicone will not bond to old.
When can I use the bath after resealing?
Normally after around 24 hours. We’ll tell you the exact time.
What do you need from me?
Photos of the damage, a picture of the entire bath or shower and your postcode. After that, we just agree a date.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Landlords are often glad to have it sorted before the end of a tenancy.
Why does the silicone keep cracking?
Generally because the bath or tray moves. We fill the bath before sealing it.
How do I stop mould in sealant?
Mostly moisture and poor ventilation. Mould-resistant silicone and good ventilation help.
Trevithal and nearby
Trevithal is about 2 miles south of Penzance, in Cornwall. Whether you are in the middle of Trevithal or on the outskirts, the service is the same: fixed prices, tidy work and a one-year guarantee. Trevithal is one of 644 places in Cornwall we cover.
Every address in TR19 is covered, from the main roads to the quietest streets. If you’re just outside Trevithal, we cover Paul (1 mile north), Sheffield (1 mile west), Mousehole (1 mile east), Raginnis (1 mile south) and Lamorna (2 miles south-west). Larger places within reach include Camborne (14 miles north-east), Helston (12 miles east), Hayle (9 miles north-east), St Ives (9 miles north), Rosewarne (14 miles north-east) and Porthleven (10 miles east).
What’s near Trevithal
We visit homes around St Pol de Léon's Church, The Ship Inn and Mousehole Community Primary School and the streets around them. The nearest railway station is Penzance station, roughly 2.6 miles north of the centre. Other landmarks nearby include British Cured Pilchards Ltd (1.5 miles north) and West Cornwall Hospital (2.5 miles north). For a walk, there’s Chapel Carn Brea and Marazion Marsh RSPB Reserve.
Common problems we fix in Trevithal
Sealant splits when the bath or tray moves, frequently because it was sealed while the bath was empty.
Common reasons people in Trevithal contact us are:
- Gaps in the seal
- Black spots in the silicone
- Silicone smeared on tiles
- Old sealant that looks dirty
Comparing quotes
- What preparation is included
- How the colour is matched
- Is the price fixed, and does it include VAT?
- How long it needs to cure
Resealing in Trevithal: why it matters
Sealing over old silicone is a false economy. It soon peels, and mould stays trapped behind it. We remove the old sealant completely. No two jobs are quite the same, so we price each one individually. The size and type of damage, the material and access all play a part, and doing several things on one visit costs less than separate visits.
What you get with us
- Same prices wherever you are
- Every repair guaranteed for a year
- Nothing taken out or refitted
- Accredited with CHAS, Constructionline and SafeContractor
See our pricing.
What a repair cannot fix
Honesty matters more than a booking, so here’s what a repair cannot fix:
- Gaps too big for silicone alone
- Rotten walls or floors behind the bath
- Loose tiles, which need refixing first
Not sure? Send photos and we will give you a straight answer.
Materials we work on in Trevithal
- Wet rooms
- Baths
- Kitchen worktops & sinks
- Shower trays & enclosures
- Basins & vanity units
About our accreditations · Every repair comes with a one-year guarantee.

