Surrey · England

Remedial sealant & repairs in Sunbury-on-Thames, Surrey

Failed sealant joints in Sunbury-on-Thames need attention? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.

  • Beads that never stuck properly
  • Gaps opening along the back of the worktop
  • Thick, messy sealant smeared over tiles

Book remedial sealant in Sunbury-on-Thames

Work for landlords, hotels and businesses

Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.

Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.

Remedial sealant in Sunbury-on-Thames

Two decades of sealant work means we recognise most failures quickly. We’re fully insured ARBOMaster approved applicators, and every remedial job comes with a 12-month guarantee. If you have repeat leaks from the same joint and decorators’ caulk around a bath or shower, we can help.

Around Sunbury-on-Thames, it’s mostly busy family bathrooms and kitchens, which is hard on sealant and grout. Black mould along the bath, a lifting bead by the sink or crumbling grout in the shower are the usual signs.

We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.

Where
Sunbury-on-Thames (TW16)
Wider area
Surrey
Guarantee
A year, on every job
Price
A clear price before any work starts
Call
0345 464 0079
Last updated
26 October 2026
Mr Mastic applicator smiling as he applies silicone to the corner of a bath

Looking after it afterwards

Good habits help new joints last longer. Our tips:

  • Have loose fittings fixed before resealing
  • Find out why the sealant failed first
  • Don’t add new sealant on top of old
  • Keep bleach and abrasives off the bead

Go easy on the new sealant: a mild cleaner and a soft cloth, with no blades or scourers.

Mould under a second layer of sealant keeps growing out of sight. By the time it shows through, the joint is well past saving.

Common problems we fix in Sunbury-on-Thames

Joint depth matters. A bead bonded on three sides, or laid too thick, cannot flex, so it tears when the joint moves. Backing rod or bond-breaker tape prevents it.

Keep an eye out for these signs:

  • Movement joints that have split or pulled away
  • Products that weren’t meant for the joint
  • Leaks that keep coming back after resealing
  • Dark patches showing through the sealant

Letting a property close to Sunbury station? Then botched sealant from a previous quick fix is easier to strip out between tenants.

Comparing quotes

  • How the joint is cleaned and prepared
  • What the quote includes, VAT included or not
  • When the joint can take water or movement
  • How long the guarantee is

10 questions to ask before booking

Can I do it myself?

If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.

Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.

How we quote for remedial sealant

We don’t publish a price list, because jobs vary so much. The quote depends on:

  • How many rooms, windows or areas are involved
  • Whether there’s mould to deal with
  • Any working-time requirements on site
  • The product the joint needs

Doing several joints on one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear quote for the lot.

Asking for a quote

Before you ask for a quote, have a think about:

  • Where the property is
  • What the problem is, such as mould, gaps, leaks or cracking
  • If someone has resealed it before
  • Photos by email, if that’s easy

Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved and give you a clear quote.

Sunbury-on-Thames: your questions answered

What guarantee comes with remedial sealant in Sunbury-on-Thames?

Every job comes with our 12-month guarantee, wherever it is. We’re fully insured, and an ARBOMaster approved applicator.

Do you cover Sunbury-on-Thames for remedial sealant?

Yes, Sunbury-on-Thames is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.

Someone resealed my shower and it’s leaking again. Can you help?

Yes. We check it’s the sealant and not the tray, valve or waste, then strip and reseal the joints.

Can you remove sealant that is been put over old sealant?

Yes. Each layer is cut out and the residue cleaned off, before resealing with a single bead.

Are you fully insured?

Yes. We are fully insured for domestic and commercial work.

Where are you based?

Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.

Do you work for hotels and businesses?

Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.

What sealant do you use?

It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. We use products from Arbo and Everbuild.

Sunbury-on-Thames homes and their sealant

Most of the South East has hard water, so limescale builds up on sealant, grout and fittings.

For site and facilities teams at buildings such as St Ignatius RC Primary School, its toilets, changing areas and kitchens need their sealant renewed like any other building’s. For an older house near a landmark such as St Saviour, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.

Sunbury-on-Thames is about 7 miles south of Hayes, in Surrey. For remedial sealant in and around Sunbury-on-Thames, please ring 0345 464 0079 or send us an email for a quick quote. We cover Surrey from our Crawley base, Sunbury-on-Thames included. Our area takes in 395 places across Surrey, large and small. London is on our list too, about 15 miles from Sunbury-on-Thames.

We cover every part of TW16 for remedial sealant. We cover properties on Station Road, The Ridings and Ravenscourt and the roads around them. Sunbury-on-Thames is on the A244 and A308, which makes it straightforward to reach. Close by, we work in Upper Halliford (1 mile south-west), Charlton (1 mile west), Ashford Common (1 mile north-west), Hounslow (1 mile north) and Littleton Common (1 mile west). Further out, we also cover Guildford (13 miles south-west), Woking (10 miles south-west), Camberley (15 miles south-west), Epsom (8 miles south-east), Ewell (8 miles south-east) and Egham (6 miles west).

What’s near Sunbury-on-Thames

We work in homes and buildings around Sunbury Manor School, The Three Fishes Public House and Sunbury Park. There’s a railway station in Sunbury-on-Thames itself: Sunbury station. Other landmarks nearby include Kempton Steam Museum (1 mile north-east) and No. 2 New Zealand General Hospital (2 miles south). The countryside around Sunbury-on-Thames includes St Ann's Hill and Kempton Park Reservoirs.

Map of Sunbury-on-Thames © OpenStreetMap contributors

What happens on the day

The work is kept neat and contained to the joints we’re treating. The job generally takes a few hours for a typical bath or shower, longer where several layers have been applied, and we tell you how long to leave it before we go. Parking in a town like Sunbury-on-Thames is generally straightforward, but tell us if there’s a driveway or any restrictions, and mention if the work is upstairs, in a flat or high on the outside.

  1. We look at how the sealant has failed and check for movement or a leak path.
  2. We strip the joint completely, removing any layers below.
  3. Next, any mould is treated and the joint dried.
  4. We use the right backing and sealant for any joint that moves.
  5. The new joint is tooled neatly and we explain anything else we found.

Before we arrive

  • Mention any leaks or damp you’ve noticed
  • Keep pets and children clear of the area while we work
  • Mention any tricky access

Get a quote

For remedial sealant in Sunbury-on-Thames, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.

Get a quick quote

Related advice

What the job involves on each surface

Worktops & kitchens

A loose worktop splits its sealant. That needs refixing before resealing, and we will tell you if we find it.

Leaking trays & enclosures

A cracked tray, failed valve or leaking waste needs a different fix. We’ll tell you what we find.

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