Dorset · England
Bath & shower resealing (mastic) in Knowlton, Dorset
Bath, shower and sink resealing with new mould-resistant silicone for homes and businesses in Knowlton and across Dorset. Free, fixed quotes from your photos.
- Water getting behind the bath or tray
- An untidy old seal
- Discoloured, yellow sealant

Bath resealing at your home in Knowlton
A fresh seal protects your bathroom. Failed sealant lets water get where it shouldn’t, and a new seal stops it. We regularly repair shower trays & enclosures, wet rooms and kitchen worktops & sinks, and common reasons people contact us are stained silicone and silicone smeared on tiles.
All of our repairs are guaranteed for twelve months. We return to put right any problem with the work.
- Where
- Knowlton (BH21)
- Area hub
- Dorset
- Warranty
- One year on every repair
- Quote
- Free, fixed quote from pictures
- Telephone
- 0345 017 0787
- Updated
- 23 October 2026

Keeping it looking good
A little care keeps the finish looking good. We recommend:
- Use the extractor fan
- Air the room after use
- Don’t stand toiletries on the seal
- Dry the seal after bathing
Let it cure fully before using the bath or shower, typically around 24 hours.
Do not wait until water gets behind the bath. Gaps or lifting edges mean it needs doing.
How it works
Nothing needs to be moved out of the room. We bring everything we need with us, put protection down and get going once we have agreed what we are doing. It normally takes a couple of hours, and you can get on with other things while we’re there.
- All the old sealant is cut out and removed.
- The joint is cleaned and any mould treated.
- We dry the joint thoroughly.
- For a bath, we fill it with water first so the joint is at its widest.
- We apply new mould-resistant silicone and tool it to a neat finish, taps included.
Preparing for the visit
- Let us know which floor the room is on
- Point us to the nearest place to park
- Move bottles, mats and clutter away from the area
Ask for a price
For most jobs, photos are all we need to give you a price. Add a line about what happened and your postcode, and we will send back a fixed quote and some dates.
Related advice
Common problems we fix in Knowlton
Sealant does not last forever. Every bath or shower adds moisture and soap residue, which mould feeds on, and the joint moves slightly every time the bath is filled.
Most people get in touch after spotting one of these:
- Damp near the bath
- Silicone smeared on tiles
- Missing sealant behind the taps
- Black spots in the silicone
Questions to ask before booking
- What happens if the damage is worse than the photos show
- What the guarantee covers, and for how long
- Whether the price covers travel
- How to look after the finish
Covering Knowlton
Knowlton is about 4 miles west of Verwood, in Dorset. We visit customers in Knowlton and nearby villages, so nothing has to leave your home. Knowlton is one of 462 towns and villages in Dorset we cover.
All of BH21 is within our area. If you’re just outside Knowlton, we cover Haythorne (2 miles south-east), Horton (2 miles south), Woodlands (2 miles south-east), Chalbury Common (2 miles south) and Whitmore (2 miles east). Further out, we also cover Christchurch (14 miles south-east), Wimborne Minster (6 miles south), Blandford Forum (9 miles west), Verwood (4 miles east), Shaftesbury (12 miles north-west) and Ferndown (7 miles south-east).
What’s near Knowlton
In Knowlton, that means homes near Church of St Giles and Wimborne St Giles Church of England First School and Nursery and the streets around them. Well-known places in the area include Cranborne Castle Hill (2.6 miles north-east).
Work for landlords and builders
We regularly price jobs from inventory or check-out photos. That means we can quote before you even visit the property, and we can arrange access with the tenant directly if that helps.
We carry out planned and one-off repairs for housing associations and facilities teams. A repair avoids taking out and refitting, which matters when someone is living in the home.
Questions from Knowlton
Is repairing better than replacing?
Typically, if the item is otherwise sound. Repairing avoids the cost and disruption of replacing. If replacing would be better, we will say so.
My seal keeps tearing. Why?
The bath or tray is probably flexing. Persistent splitting can mean the support needs attention.
Do you come to Knowlton?
Yes, we do. Technicians travel to Knowlton from across the region, and the price is the same as everywhere else.
Can landlords book you?
Yes, frequently. We can quote for several properties together and work between tenancies.
Do I have to be there?
Someone needs to let us in and show us the job. You don’t need to watch us work.
What do you need from me?
A close-up, a wider photo and your postcode. After that, we just agree a date.
Can you quote from pictures?
Yes, almost always. Clear photos let us give you a fixed quote without visiting.
It’s been repaired before. Can you still fix it?
In most cases. The old repair comes out first, so mention it when you send photos.
Resealing in Knowlton: why it matters
Resealing is routine maintenance. Putting off a reseal lets water get behind the bath or tray, which costs far more to put right. The price depends on the type and amount of damage, what it’s made of and how many jobs we combine into one visit. You get a fixed quote from your pictures, so there are no surprises on the day.
Why us?
- A year’s guarantee on all work
- We’ll tell you if it’s not worth repairing
- CHAS, Constructionline and SafeContractor accredited
- Technicians who travel to you, UK-wide
See our pricing.
Places near Knowlton
What else we do in Knowlton
DIY repairs versus a professional job
If you are set on a kit, follow its instructions closely, and give it the full curing time. If it does not work out, we can still repair it properly.
A kit can be fine for a tiny mark out of sight. For damage in plain view, cracks, holes or rust, or coloured finishes, a professional repair is worth it.
What your bath or shower is made of matters
Sinks and worktops
We reseal basins, vanity tops and kitchen worktops, with the joint fully dried first.
Baths
We fill the bath before sealing, so the joint is at its widest.
What affects the price in Knowlton
A fixed quote means you know the cost before booking. We look at:
- What the surface is made of
- The type of damage
- Previous DIY repairs that have to come out
- Unusual colours or finishes
Compared with replacing, repairing generally costs far less, because there is no removal, plumbing or making good. The quote lists exactly what you’re paying for.
Getting a price from photos
Phone pictures are fine. Just make sure we can see:
- Details of any past repairs
- The postcode, so we can plan the visit
- Something in shot to show the size
- A close-up of the damage, in focus
No survey visit is needed: we price from photos. Send them through the quote form, or call 0345 017 0787 if you’d rather talk it through, and we’ll come back with a fixed figure.
About our accreditations · Every repair comes with a one-year guarantee.

