West Berkshire · England

Remedial sealant & repairs in Donnington, West Berkshire

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

  • Sealant applied over old sealant that has lifted
  • Black mould underneath the bead
  • Thick, messy sealant smeared over tiles

Book remedial sealant in Donnington

About our remedial sealant in Donnington

A joint that keeps failing generally has a reason. A tray that moves, a worktop that isn’t fixed, the wrong sealant or water getting in elsewhere will defeat even a perfect bead. We look for the cause before we reseal. Typical jobs include sealant that came away because the surface wasn’t prepared and smears and lumps from a botched reseal, across leaking tray & enclosure joints, botched or over-sealed joints and mouldy bath & shower sealant.

Being in a small place like Donnington makes no difference to the job itself: it just means planning the journey and access beforehand. Once we’re there, the bathroom or kitchen gets the same care as anywhere else.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.

Location
Donnington (RG14)
Region
West Berkshire
Guarantee
12 months on all our work
Quotes
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026
Sealant gun close-up on a shower enclosure wall joint

Landlord and commercial work in Donnington

We work for landlords and letting agents as well as householders. Sealant work between tenants keeps a property looking cared for.

We regularly work with letting and managing agents. Tell us the address, the job and how access works.

Aftercare tips

Good habits help new joints last longer. Our tips:

  • Do not wait for a small gap to become a leak
  • Ask why a joint failed before redoing it
  • Have loose fittings fixed before resealing
  • Run the fan after every shower

Clean gently: no scraping, scouring pads or harsh chemicals.

Warning signs: peeling layers, mould showing through the bead, leaks after showering or cracks in a movement joint. Any of them means it’s time for remedial work.

Can I do it myself?

Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.

If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.

FAQs for Donnington

Do you work for landlords with property near Newbury station?

Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear price.

Is Donnington within the area you cover?

Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.

What does remedial sealant cost?

We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before work begins.

Can you reseal a split movement joint?

Yes. Where mortar or filler has been used instead of sealant, it’s removed where it can be, and reseal with a flexible product.

Can you do several jobs on one visit?

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

What sealant do you use?

Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will tell you what we are using.

Does remedial work come with a guarantee?

Yes. Every job comes with our one-year guarantee.

What happens if the problem is the tray or the plumbing?

Then we explain what we have found. A plumber or fitter may be needed before any new sealant goes on.

The process

Good joint work is mostly preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours for a typical bath or shower, longer where several layers have been applied. In a small place like Donnington, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  1. First we find out how and where the joint has failed.
  2. We strip the joint completely, removing any layers below.
  3. We clean the joint, treat any mould and let it dry.
  4. Where the joint moves, backing and a flexible sealant suited to the movement go in.
  5. The new joint is tooled neatly and we explain anything else we found.

Preparing for the visit

  • Let us know if you’ve seen damp or leaks
  • Mention any parking rules near the property
  • Keep pets and children clear of the area while we work

Ask for a quote

Every job is quoted individually. Just ring 0345 464 0079 or send us an email with the details and send photos if you have them.

Get a price

Related advice

Quotes for remedial sealant in Donnington

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

  • How many rooms, windows or areas are involved
  • Any working-time requirements on site
  • The type of sealant required
  • The number and length of the joints

Leaving a failed joint normally makes the job bigger, not smaller, because water and mould keep working on it. If you’re not sure whether it needs doing, ring 0345 464 0079 or send us an email for an honest opinion and a quote.

What we need to know

Photos help, but a description is a good start. Please mention:

  • The rough size of the job
  • The address or postcode of the job
  • The problem you’ve noticed
  • If someone has resealed it before

Asking for a quote is easy: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we’ll come back to you with a quote.

Different surfaces, different methods

Movement & expansion joints

A movement joint must be able to stretch. We remove the failed sealant, fit backing and reseal.

Windows & doors

Failed frame mastic is often hard, cracked and in several layers. All of it is cut out and the frame and wall cleaned before backing and resealing.

Remedial sealant around Donnington

Most of the South East has hard water, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in. Donnington has hotels and guest accommodation nearby. As well as homes, we work in hotel bathrooms, where resealing and regrouting can be done room by room.

If you look after a building such as Shaw-cum-Donnington C.E. Primary School, we reseal washrooms and kitchens in schools and businesses as well as homes. If you let a flat or house near Newbury station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak.

Donnington is about 1 mile north of Newbury, in West Berkshire. Jobs in Donnington get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Donnington is one of 155 places in West Berkshire where we work. You can also see our page for Reading, roughly 15 miles from Donnington.

We cover every part of the RG14 postcode area for remedial sealant. Remedial sealant is available to properties on The Orchids, The Redcoats and Cannon Close and the roads around them. Close by, we work in Speenhamland (1 mile south), Shaw (1 mile south-east), Bagnor (1 mile south-west), Speen (1 mile south-west) and Stockcross (2 miles west). Within a short drive, we also cover Thatcham (3 miles east), Burghfield Common (12 miles east), Hungerford (8 miles west), Calcot (12 miles east), Lambourn (11 miles north-west) and Burghfield Hill (12 miles east).

What’s near Donnington

Locally, jobs take us to homes and businesses close to Trinity School, Victoria Park and The Castle pub. The nearest railway station is Newbury station, about 1.5 miles south of the centre. Nearby you will also find Donnington Castle (less than half a mile west) and West Berkshire Community Hospital (1.9 miles south-east). The countryside around Donnington includes Rack Marsh.

Map of Donnington © OpenStreetMap contributors

What we are called out for in Donnington

Joints that move need sealant that can stretch. A bath that flexes, a tray that rocks or a building joint that opens and closes split any bead that is too stiff or too thin.

The problems people generally mention when they call are:

  • Mould trapped under a layer of silicone
  • Repeat leaks from the same joint
  • Kitchen joints letting water behind the worktop
  • Floor or wall movement joints that have failed

For an older house near a landmark such as Parish Church of St Mary, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.

Questions to ask before you book

  • What insurance they hold
  • How the surfaces are prepared before sealing
  • How long the guarantee is
  • How long to leave it before use

Our hiring checklist

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