Hertfordshire · England

Remedial Sealant in Ashwell

Our applicators work in Ashwell on removing failed, mouldy or leaking sealant and putting it right. Old sealant removed completely, joints prepared properly.

  • Sealant peeling off a dusty or damp surface
  • A second bead peeling off the first
  • Floor or wall movement joints that have failed

Book remedial sealant in Ashwell

Honest limits

We will not take on work that won’t last, so here’s what sealant can’t put right:

  • Sealant in an older building that needs testing for asbestos first
  • Tiles that have come away from the wall
  • A tray or worktop that needs refixing first

If in doubt, call 0345 464 0079 or drop us an email and we will say what we think before you book.

Joints and surfaces we work on

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

Remedial sealant in Ashwell

A joint that keeps failing normally 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. If you are dealing with decorators’ caulk around a bath or shower and dark patches showing through the sealant, we can help, whatever the surface.

In and around Ashwell, older properties sit alongside newer ones. Older homes can move a little with the seasons, which is hard on tired sealant and rigid grout.

We stand behind the work with a one-year guarantee.

Fresh white silicone going into the corner where a shower screen meets the tiled wall
Place
Ashwell (SG7)
Region
Hertfordshire
Cover
A year, on every job
Price
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026

Looking after it afterwards

How long the joints last depends on use and care. We suggest:

  • Ask why a joint failed before redoing it
  • Deal with small splits early
  • Never seal over old silicone
  • Look for stains below bathrooms now and then

If the joint ever needs renewing, have it cut out, not sealed over. New silicone doesn’t bond to old, so the old bead should always come out first.

Mould under a second layer of sealant keeps growing out of sight. When it finally shows, the whole bead needs to come out.

Common problems we fix in Ashwell

Movement tears sealant that isn’t designed for it. A bath that flexes, a tray that rocks or a building joint that opens and closes will split a rigid or thin bead.

Keep an eye out for these signs:

  • Kitchen joints letting water behind the worktop
  • Floor or wall movement joints that have failed
  • Products that weren’t meant for the joint
  • Dark patches showing through the sealant

Homes close to St Mary's Church include some older properties, and timber floors under older bathrooms flex, so joints need a sealant that moves with them.

Before booking anyone

  • What guarantee comes with the work
  • Is the old sealant removed completely?
  • How much experience the applicator has
  • What happens if they find a problem under the old sealant

How to choose a mastic man

The process

Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours, depending on how many layers have to come out and we leave things clean and tidy. In a smaller place like Ashwell, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.

  1. The failure is looked at first, so we know whether it’s sealant, movement or water from elsewhere.
  2. Old beads and residue are removed down to clean surfaces.
  3. Mould is treated and the joint dried.
  4. The right product goes in, with backing where the joint moves.
  5. We finish neatly and point out anything that needs another trade.

Getting ready for the visit

  • Tell us if parking is tricky
  • Mention any tricky access
  • Keep pets and children clear of the area while we work

How to get a quote

For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.

Get a quick quote

Related advice

Remedial sealant around Ashwell

Hard water is the norm across most of the South East, which leaves limescale on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.

If you let a flat or house near Ashwell & Morden station, failed or mouldy sealant is worth putting right between tenancies, before it turns into a leak. Managing a site like Ashwell Primary School? Then we reseal washrooms and kitchens in schools and businesses as well as homes.

Ashwell is about 5 miles north-east of Letchworth, in Hertfordshire. For remedial sealant in and around Ashwell, it’s easy to get a quote: please phone 0345 464 0079 or send us an email. We cover Hertfordshire from our Crawley base. Our area takes in 381 places across Hertfordshire, large and small. For nearby work, see our Chelmsford page, about 34 miles away.

Here we cover the SG7 postcode area for remedial sealant. Whether your property is on High Street, Station Road and Alms Lane or anywhere close by, we can help. If you’re just outside Ashwell, we cover Ashwell End (1 mile west), Bury End (2 miles west), Newnham (2 miles south-west), Caldecote (2 miles west) and Hinxworth (2 miles west). We also work in nearby towns such as Stevenage (9 miles south), Hitchin (8 miles south-west), Letchworth (5 miles south-west), Letchworth Garden City (5 miles south-west), Stotfold (4 miles south-west) and Baldock (4 miles south).

Local landmarks in Ashwell

In Ashwell, that means homes and buildings near Rose And Crown Public House. Ashwell’s nearest station is Ashwell & Morden station, about 2 miles east of the centre. Other landmarks nearby include Bygrave House (2.2 miles south) and Fairfield Hospital (4.8 miles south-west). Open spaces near Ashwell include Fox Covert.

Map of Ashwell © OpenStreetMap contributors

Why deal with it now?

Adding more sealant is the usual quick fix, and it rarely works. It cannot bond to what’s underneath, so the leak carries on and there’s now more to remove. In a smaller place like Ashwell, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.

A few things move the cost up or down: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether we need extra access for height. We take all of that into account in your quote.

What you get with us

  • Domestic, commercial and hotel work
  • 180+ five-star Google reviews
  • White, clear, grey or another colour, product permitting
  • Any old sealant cut out fully, not covered over

Read how sealant jobs are priced or customer reviews.

Should I try it myself first?

The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.

A DIY attempt doesn’t rule out a professional job. We cut it out and start again.

What affects the cost of remedial sealant

Your quote is based on your job. We look at:

  • How much old sealant there is and how hard it is to remove
  • Which sealant suits the joint
  • Working hours on commercial sites
  • Mould in or behind the old joints

Doing several joints on one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.

Asking for a quote

To help us quote quickly, let us know:

  • How many joints, rooms or windows are involved
  • If it’s domestic, commercial or a hotel
  • Any previous sealing or DIY work
  • What’s wrong with the joints now

Asking for a quote is easy: let us know what needs doing and where. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.

Ashwell questions

Will you come out to Ashwell?

Yes. Ashwell is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

I let a flat near Ashwell & Morden station. Can you help?

Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will give you a clear price.

Does remedial work come with a guarantee?

Yes, with our one-year guarantee. If we have pointed out another problem, getting it fixed helps the new joint last.

Do you offer different sealant colours?

We’ll suggest a colour to suit the surroundings. The product needed can limit the range.

How long does the work take?

That depends on how many layers there are and how many joints. We’ll tell you before we start.

Can failed expansion joints be resealed?

Yes. If a joint has been filled with mortar or rigid filler, we rake it out where possible, then the joint is sealed properly.

Can you fix a reseal that hasn’t worked?

Yes. All the sealant comes out, we find out why it failed, and the joint is resealed properly.

When is the sealant fully cured?

Different products cure at different speeds, so please follow the time we give you.

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