Wokingham · England

Remedial sealant & repairs in Knowl Hill, Wokingham

Removing failed, mouldy or leaking sealant and putting it right for homes and businesses in Knowl Hill and across Wokingham. Fully insured, ARBOMaster approved and guaranteed for a year.

  • A shower that leaks however often it’s resealed
  • Thick, messy sealant smeared over tiles
  • Sealant that came away because the surface wasn’t prepared

Book remedial sealant in Knowl Hill

Remedial sealant in Knowl Hill, done properly

Some sealant jobs are not a simple reseal, because someone has already had a go. New sealant over old, smeared beads, unsuitable products and hidden mould all have to come out. We work on failed movement joints, shrunken worktop sealant and mouldy bath & shower sealant, and common reasons people get in touch are caulk or the wrong sealant used in a wet area and dark patches showing through the sealant.

For a small place like Knowl Hill, remedial sealant is planned like any other job: the journey and access are simply agreed in advance. Once we’re there, the bathroom or kitchen gets the same care as anywhere else.

Our work is backed for twelve months.

Sealant gun being used along the bath-to-tile joint in a beige tiled bathroom
Location
Knowl Hill (RG10)
Region
Wokingham
Cover
One year on every job
Quote
A clear quote up front
Phone
0345 464 0079
Last updated
26 October 2026

What the job involves on each surface

Mouldy bath & shower sealant

Mould can sit behind the silicone, not just in it. We treat the exposed joint once the bead is out so the new sealant starts clean.

Windows & doors

Wrong-coloured or messy mastic can be replaced for appearance too, matched to the frame colour.

What affects the cost of remedial sealant

The quote reflects the job in front of us. We take into account:

  • The old material and how stubborn it is
  • How many rooms, windows or areas are involved
  • The type of sealant required
  • The number and length of the joints

We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or email us and we’ll talk you through it.

What to tell us for a quote

The more you tell us, the more accurate the quote. When you ask for a quote, tell us:

  • Where the job is, and your postcode
  • How we’d reach the joints
  • What’s wrong with the joints now
  • How many joints, rooms or windows are involved

The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email pictures if that’s easy.

Bathrooms and kitchens in Knowl Hill

Most of the South East has hard water, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.

For an older house near a landmark such as Saint Peter, walls and floors in older homes can move, and sealant and grout show it first. For landlords with property near Wargrave station, a joint that keeps failing is best fixed properly while the property is empty. If you look after a building such as Knowl Hill Church of England Primary Academy, washroom and kitchen sealant there needs the same care as at home, and schools and businesses are part of our work as well as homes.

Knowl Hill is about 4 miles west of Maidenhead, in Wokingham. If you need remedial sealant in Knowl Hill, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We cover Wokingham from our Crawley base, Knowl Hill included. Our Wokingham coverage runs to 35 places, and Knowl Hill is one of them. Reading is on our list too, about 8 miles from Knowl Hill.

Here we cover the RG10 postcode area for remedial sealant. Whether your property is on Star Lane, Choseley Road and Choseley Close or anywhere close by, our applicators can take on the job. Nearby, we also carry out remedial sealant in Warren Row (1 mile north-west), Cold Harbour (1 mile south-east), Bowsey Hill (1 mile west), Cockpole Green (2 miles north-west) and Wargrave (2 miles west). Larger places within reach include Reading (8 miles south-west), Wokingham (7 miles south), Woodley (5 miles south-west), Earley (7 miles south-west), Crowthorne (9 miles south) and Lower Earley (7 miles south-west).

What’s near Knowl Hill

In Knowl Hill, that means homes and buildings near Seven Stars Public House And Attached Stables and the streets around them. The closest station to Knowl Hill is Wargrave station, about 2.7 miles west of the centre. Well-known places in the area include Frazer Nash Archives (3.6 miles west) and St Mark's Hospital (3.3 miles east). For a walk, there’s Weycock Hill and Hurley Chalk Pit.

Map of Knowl Hill © OpenStreetMap contributors

How the visit works

You don’t need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the job takes a few hours for most joints, depending on how much old sealant has to come out for a typical job. In a small place like Knowl Hill, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We start by checking the joint for movement, leaks and the reason it failed.
  2. All the old sealant comes out, including any layers underneath.
  3. We clean the joint, treat any mould and let it dry.
  4. We use the right backing and sealant for any joint that moves.
  5. Finally we finish the joint and talk you through what we found.

Getting ready for the visit

  • Mention if the joints have been sealed before
  • Keep children and pets away from the work area
  • Let us know if you’ve seen damp or leaks

Get a quote

For remedial sealant in Knowl Hill, ring 0345 464 0079 or drop us an email. Tell us what the problem is and where, and you will get a clear quote before we start.

Get a price

Advice

Your questions about remedial sealant in Knowl Hill

Will you come out to Knowl Hill?

Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.

Do you cover Knowl Hill for remedial sealant?

Yes. We work across London and the South East, and Knowl Hill is part of that. You can ring 0345 464 0079 or send us an email and tell us what needs doing.

Will the old sealant be removed?

Yes. We cut out all the old sealant and clean the joint before resealing.

Does someone need to be in?

We need access to the joints, so we’ll agree that with you when we book. Indoors, that usually means someone at home.

Can I add another job to the visit?

Of course. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.

Can you match the sealant colour?

Most of the time, yes. We’ll explain which colours are available.

Can you fix a reseal that hasn’t worked?

Yes. We’ll take all the sealant out, look for why it failed and reseal it properly.

Can you take off two layers of silicone?

Yes. It’s slower than a standard reseal, because every layer has to come out cleanly, but it’s what makes the new bead last.

Leave it or put it right?

Stripping out botched sealant adds time to a reseal, but not by much: it takes a few hours for a typical bath or shower, longer where several layers have been applied. Compared with chasing the same leak every few months, it’s time well spent. Older cottages and farmhouses around Knowl Hill can have timber floors and frames, and water through a failed joint can rot timber if it’s left.

A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, ring 0345 464 0079 or send us an email and we will give you an honest view and a quote.

Why Knowl Hill customers choose us

  • 4.9 on Google from 180+ five-star reviews
  • A sealant colour to suit the surroundings
  • We never seal over old sealant
  • Experience in homes, commercial sites and hotels

Read how sealant jobs are priced or what customers say.

Honest limits

A few problems are outside what sealant work can do:

  • A leaking trap, valve or supply pipe
  • A tray or bath that’s cracked
  • Failed tanking or loose tiles behind the sealant

If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.

Surfaces we seal

  • Expansion joints
  • Leaking tray & enclosure joints
  • Botched or over-sealed joints
  • Mouldy bath & shower sealant
  • Failed movement joints
  • Shrunken worktop sealant

DIY versus a professional finish

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.

Aftercare tips

Joint life depends on how it’s used and looked after. Here’s what we suggest:

  • Check trays and worktops do not move
  • Deal with small splits early
  • Check ceilings under showers for marks
  • Do not add new sealant on top of old

Ventilation keeps mould away from the new bead: use the extractor or open a window after showering.

Mould trapped under over-sealed joints spreads unseen. When it finally shows, the whole bead needs to come out.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job