Portsmouth · England
Bath & shower resealing (mastic) in Cosham, Portsmouth
Bath, shower and sink resealing with new mould-resistant silicone for homes and businesses in Cosham and across Portsmouth. Free, fixed quotes from your photos.
- Water getting behind the bath or tray
- Missing sealant behind the taps
- Black spots in the silicone
Bath resealing in Cosham, done in place
Resealing is quick, but it transforms the look. Fresh joints make the whole room look cleaner, and they keep water out. Our technicians work on wet rooms, baths and shower trays & enclosures, and people most frequently call us about gaps by the taps and black mould in the sealant.
Every job is backed for twelve months. If something goes wrong with the work, we come back.
- Location
- Cosham (PO6, PO3, PO2)
- Area hub
- Portsmouth
- Guarantee
- 12 months on all our work
- Quote
- Free and fixed, from your pictures
- Telephone
- 0345 017 0787
- Updated
- 23 October 2026
DIY repairs versus a professional job
A DIY attempt is not a disaster. We remove the old filler and start again, so it does not stop a professional repair. Just mention it when you send photos, as it can add time.
For a hairline mark somewhere you will never see, a kit may be enough. For damage in plain view, cracks, holes or rust, or coloured finishes, it’s worth having it done properly.
Places near Cosham
More services for Cosham
Your questions about bath resealing in Cosham
Why does mould come back so fast?
Mould needs moisture. Run the fan, dry the joints and the new seal stays cleaner for longer.
How long does resealing take?
Most reseals take about two hours. Leave it to cure before use.
Do you cover the whole of Portsmouth?
Everywhere in the UK, Cosham included. There’s no extra charge for travel.
Is it safe with children and pets around?
Yes, as long as they stay out of the room we’re working in. We will tell you when the room can be used again.
What does bath resealing cost?
Because every job differs, we price from photos. You’ll get a fixed figure before booking.
Are there extra charges for Cosham?
No. Our quotes include travel, and we charge the same wherever you are.
Are you a vetted contractor?
Yes. Our accreditations include CHAS, Constructionline and SafeContractor. The full list is on our accreditations page.
Can I get a quote without a visit?
Yes, almost always. A close-up and a wider photo are enough to give a fixed price.
Our work in Cosham
Cosham is about 2 miles south-west of Purbrook, in Portsmouth. Whether you are in the middle of Cosham or on the outskirts, we offer exactly the same service: fixed prices, tidy work and a one-year guarantee. Our repair technicians cover all 19 towns and villages in Portsmouth. We work right across the region, from Cosham to London (about 62 miles away).
Our technicians cover all of the PO6, PO3 and PO2 postcode area. Streets in the area include Dean Road, Park Lane and Elgin Road, all of which we cover. Cosham sits on or near the A397, so getting to you is simple. If you’re just outside Cosham, we cover Wymering (1 mile north-west), Hilsea (1 mile south), Drayton (1 mile east), Widley (1 mile north-east) and Paulsgrove (1 mile west). Larger places within reach include Southsea (4 miles south), Milton (3 miles south), Landport (3 miles south), Portsea (3 miles south-west), Portsmouth Point (4 miles south-west) and Fratton (3 miles south).
What’s near Cosham
Typical jobs here are in homes near The First Post pub, Springfield School and Church of St Philip and the streets around them. You will also find Alexandra Park (1.3 miles south-west), UTC Portsmouth (0.8 miles south) and Court Lane Junior Academy (less than half a mile east). There’s a railway station in Cosham itself: Cosham station. Nearby you’ll also find Tricorn Centre (2.9 miles south) and World War I Remembrance Centre (1 mile south-east). Open spaces near Cosham include Southmoor Nature Reserve and Portsdown Hill.
For landlords and businesses
We regularly work with letting and managing agents. Send the address, pictures and access details.
Landlords, letting agents and housing providers in Cosham use us as well as householders. Repairing between tenancies keeps void periods short, and it costs much less than replacing.
Different materials, different repairs
Sinks and worktops
Basins, vanity units and kitchen worktops are resealed too, once the joint is completely dry.
Shower trays
Trays are sealed with weight on them, so the joint is at its widest.
What we can’t put right
Not everything can be repaired, and we would rather say so up front. We cannot fix:
- Rotten walls or floors behind the bath
- A flexing bath
- Very wide gaps that need a trim
Send us pictures and we’ll tell you honestly.
Surfaces we repair
- Kitchen worktops & sinks
- Basins & vanity units
- Wet rooms
- Shower trays & enclosures
- Baths
How the visit works
Once we are through the door, the aim is to do the job without disturbing the rest of your home. Surfaces nearby are masked off, the work takes around two hours, depending on what we find, and we finish with a tidy-up and a look at the finished work together.
- We protect the area and mask the joint lines.
- Old sealant and residue are removed.
- We clean, treat and dry the joint.
- Fresh silicone is applied in a continuous bead.
- The bead is smoothed, the tape removed and the seal left to cure.
Getting ready for the visit
- Avoid using the area for a few hours before we arrive
- Clear the area around the damage
- Tell us about parking, stairs or access
Ask for a price
A quote takes minutes to ask for: photograph the damage, then the entire bath or shower, include your postcode and send them over. You’ll get a fixed price, not an estimate.
Advice
Why reseal now?
A reseal is one of the cheapest bathroom jobs there is and protects the walls and floor. Leaving failed sealant can let water cause damage that costs far more to fix. Set against the cost of replacement, repairing normally costs far less, because there’s no removal, plumbing or making good. The quote lists exactly what you are paying for.
Why choose Surface Doctor in Cosham
- Fixed prices from your photos
- Dust sheets down, tidy finish
- We come to you, anywhere in the UK
- Same prices wherever you are
Take a look at our pricing.
How we price bath resealing
You will know the full cost before booking. We look at:
- Whether it’s a chip, crack, burn or wear
- What the surface is made of
- How much damage there is
- Unusual colours or finishes
The price reflects the work involved, not where you live. You will see the full price before you book, with no extras added later.
How to get a fixed price
You can take the pictures on your phone. Just make sure we can see:
- A clear, close picture of the problem area
- A wider photo showing the entire bath or shower
- Where you are, by postcode
- Any details about the material
For a price in Cosham, pictures are the quickest way: one close up, one from further back, plus your postcode. You will get a fixed quote with dates to choose from.
Common problems we fix in Cosham
Joints split if the bath or tray moves, frequently because it was sealed while the bath was empty.
The things clients generally mention when they call include:
- A messy previous reseal
- Mould you cannot clean out
- Old sealant that looks dirty
- Silicone coming away from the tiles
Questions to ask before booking
- Whether the price covers travel
- Who turns up on the day
- What the guarantee covers, and for how long
- What preparation is included
About our accreditations · Every repair comes with a one-year guarantee.
