Greater London · England
Bath Resealing in Harrow
Bath resealing in Harrow without the cost of replacing. Get a fixed price from your photos, then we come to you.
- Black mould in the sealant
- Silicone smeared on tiles
- Water getting behind the bath or tray
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, to open the joint fully.
Bath resealing in Harrow without replacing anything
We reseal baths, shower trays, basins and worktops, with mould-resistant sanitary silicone. Most jobs take a couple of hours. Our repair technicians work on baths, kitchen worktops & sinks and basins & vanity units, and people most often call us about black mould in the sealant and gaps in the seal.
All our work is covered by a one-year guarantee, wherever you are in Greater London.
- Location
- Harrow (HA2, HA1, UB5, HA3)
- Area hub
- Greater London
- Guarantee
- One year on every repair
- Price
- Free, fixed quote from pictures
- Call
- 0345 017 0787
- Page updated
- 23 October 2026
About Harrow
Harrow is about 7 miles south of Watford, in Greater London. Whether you’re in the middle of Harrow or on the outskirts, we offer exactly the same service: a fixed price, a tidy visit and a guarantee. Harrow is one of 764 towns and villages in Greater London we cover. Our nearest city page is London, about 12 miles away.
All of HA2, HA1, UB5 and HA3 is covered, from the main roads to the quietest streets. We regularly work on streets such as High Street, London Road and Perceval Square. Harrow sits on or near the B457 and B458, so getting to you is simple. We also cover the places around Harrow: Roxeth (1 mile south), South Harrow (1 mile south), North Harrow (1 mile north-west), Harrow on the Hill (1 mile south-east) and Rayners Lane (1 mile west). We also work in nearby towns such as London (12 miles south-east), City of Westminster (9 miles south-east), Marylebone (10 miles south-east), Kensington (8 miles south-east), St Pancras (11 miles east) and Shoreditch (12 miles east).
What’s near Harrow
We visit homes around Northwick Park, Orley Farm School and Grange Primary School, among other places. Other local landmarks include Whitmore High School (within half a mile south-west), Kingsfield Arms (less than half a mile east) and Church of St Peter (under half a mile north). The nearest railway station is Harrow-on-the-Hill station, roughly 0.7 miles north-east of the centre. Well-known places in the area include St. George's Shopping Centre (0.7 miles north-east) and Clementine Churchill Hospital (1 mile south-east). For a walk, there is Islip Manor Meadows and Northala Fields.
Harrow: your questions answered
I’m a tenant. Can you help?
We are happy to deal with the tenant, landlord or agent. Just make sure the landlord agrees.
Can you price it without visiting?
Yes, almost always. A close-up and a wider photo are enough to give a fixed price.
What does bath resealing cost?
Every job gets a fixed quote from your pictures. Send a close-up of the damage and a wider photo with your HA2 postcode.
Can new silicone go over old?
Never over old. It’s removed, cleaned off and the joint dried first.
How quickly can you book me in?
That depends on our diary for your area. Send pictures with your postcode and we’ll reply with the earliest dates.
Can landlords book you?
We do, regularly. We quote for multiple addresses and fit around tenancy changeovers.
Will you leave a mess?
We protect the room with dust sheets and masking first, and we clean up when we’ve finished.
Do you work in Harrow?
We do. We send a technician to Harrow for every job, with no extra charge for travel.
Common problems we fix in Harrow
Poor ventilation speeds things up: damp hangs around, and mould takes hold.
Typical reasons for a call-out include:
- Silicone smeared on tiles
- Discoloured, yellow sealant
- Black spots in the silicone
- Water getting behind the bath or tray
Questions to ask before you book
- How the colour is matched
- What preparation is included
- How the room is protected while they work
- Who turns up on the day
How to look after the repair
Much of the damage we repair could have been avoided. A few tips:
- Store bottles on a shelf
- Wipe the joints dry after use
- Reseal at the first sign of lifting
- Open a window after bathing
Use the extractor fan, wipe the joints dry after use, and give them a regular clean with a mild cleaner to slow mould growth.
If you notice damp, stains on the ceiling below or loose tiles, act quickly. There may be more going on, so we’ll tell you if it needs a builder or plumber.
DIY repairs versus a professional job
It’s natural to want to try a repair yourself. The risk is that a kit repair hides the damage for a while, then fails, and the old filler has to come out before a proper repair.
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.
What happens on the day
We turn up when we said we would, introduces themselves and checks the damage against your photos first. The floor and nearby surfaces are covered before we open a single tin. Most visits take around two hours, and we leave the room as we found it.
- We cut out and remove all of the old sealant.
- We clean the joint and treat any mould.
- We make sure the joint is completely dry.
- We fill a bath with water before sealing so the gap is at its widest.
- We run a new bead of mould-resistant silicone and smooth it neatly, including around the taps.
Before we arrive
- Clear toiletries, mats and anything else from around the area
- Have somewhere for us to park nearby if possible
- Tell us about any previous repairs or coatings
Get a quote
For a price in Harrow, the easiest route is pictures: one close up, one from further back, plus your postcode. You’ll get a fixed quote with dates to choose from.
Related advice
Honest limits
We’ll always be straight with you, so here’s what a repair won’t do:
- Hidden water damage
- Loose tiles, which need refixing first
- Gaps so wide they need filling or trims before sealing
Send us photos and we’ll tell you honestly before you book.
Materials we repair
- Kitchen worktops & sinks
- Shower trays & enclosures
- Basins & vanity units
- Baths
- Wet rooms
Why it’s worth resealing in Harrow
A reseal is one of the cheapest bathroom jobs there is, and it protects everything around the bath. Failed sealant can lead to water damage that is much more expensive. 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.
Why choose Surface Doctor in Harrow
- Same prices wherever you are
- Free fixed quotes from pictures
- Typically one visit, start to finish
- Dust sheets down, tidy finish
Read our prices page.
What affects the price in Harrow
We give every job a fixed price from pictures. These are the things that affect it:
- Where the damage is and how we get to it
- The material
- The type of damage
- How hard the colour is to match
Compared with replacing, a repair is generally a fraction of the price, because there’s no removal, plumbing or making good. Your fixed quote shows exactly what’s included.
How to get a fixed quote
A couple of clear pictures is all it takes. It helps if you send:
- A coin or ruler next to the damage for scale
- The material, if you know it
- A clear, close picture of the problem area
- Daylight if possible, and no flash reflection
You don’t need a survey visit. Photos are enough for us to price nearly every job: we need a close-up, a wider picture and your postcode, and we’ll come back to you with a fixed figure.
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About our accreditations · Every repair comes with a one-year guarantee.
