Greater London · England

Remedial Sealant in Wood Green

Removing failed, mouldy or leaking sealant and putting it right in Wood Green, with a one-year guarantee on every job. Ask us for a quote.

  • Beads that never stuck properly
  • A shower that leaks however often it’s resealed
  • Wide, uneven beads that look worse than the old ones

Need remedial sealant in Wood Green?

DIY sealant or a professional job?

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.

Remedial sealant for homes and businesses in Wood Green

A joint that keeps failing usually has a reason. Movement, the wrong product or a leak from somewhere else will defeat even a perfect bead. Finding that cause comes before any new sealant. We work on expansion joints, mouldy bath & shower sealant and failed movement joints, and people most often call us about over-sealed joints coming away and wide, uneven beads that look worse than the old ones.

Hard London water leaves limescale on sealant, grout and taps alike. In Wood Green, remedial sealant is as much about a room looking cared for as about keeping water out.

Our work is backed for twelve months, and the guarantee is the same wherever you are.

Location
Wood Green (N22, N8)
Wider area
Greater London
Cover
A year, on every job
Price
A clear price before we start
Telephone
0345 464 0079
Updated
26 October 2026
Fresh white silicone going into the corner where a shower screen meets the tiled wall

What affects the quote in Wood Green

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

  • The old material and how stubborn it is
  • How many areas need sealing
  • The type of sealant required
  • How easy the joints are to reach

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

What to tell us for a quote

You do not need to know the technical terms. Just tell us:

  • The type of property
  • Whether it has been sealed before
  • Where the property is
  • Any access issues, like height or stairs

A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.

Surface by surface

Leaking trays & enclosures

When failed joints are the cause, they’re all cut out and renewed, including the screen profile and tray edges.

Mouldy bath & shower sealant

Black mould inside the bead will not scrub out. All of it comes out, and the joint is treated and dried ahead of a new anti-fungal bead.

When to call us in Wood Green

Sealant needs a clean, dry surface with no grease on it. Residue, moisture or dust left in the joint weaken the bond, so it starts lifting sooner than it should.

Most people get in touch after spotting one of these:

  • Sealant applied over old sealant that has lifted
  • Movement joints that have split or pulled away
  • Smears and lumps from a botched reseal
  • Decorators’ caulk around a bath or shower

Rented homes near Alexandra Palace station change hands often, and a joint that keeps failing is best fixed properly while the property is empty.

What your quote should include

  • Whether they seal over old material or remove it
  • Who turns up on the day
  • What product goes in the joint
  • How the joint is cleaned and prepared

How to choose a mastic man

Common questions in Wood Green

I let a flat near Alexandra Palace station. Can you help?

Yes. We work for landlords and agents as well as homeowners, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.

I live in a flat in Wood Green. Can a failed seal leak into the flat below?

Yes. In a flat, water from a failed bath or shower seal has only one way to go, and that’s down. A proper reseal before the leak starts is the easy fix.

How long will it take to strip and reseal the joint?

A little longer than a standard reseal. For most joints, it’s a few hours.

Do you fix expansion and movement joints?

Yes. We cut out the failed sealant, fit backing and reseal with a flexible product.

Should I try DIY first?

Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.

Do the sealants smell?

There can be a smell while the sealant cures. Opening a window helps.

What sealant do you use?

Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.

When is the sealant fully cured?

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

Honest limits

In fairness, some problems need a different trade:

  • A tray or worktop that needs refixing first
  • Cracks in the fitting rather than the joint
  • Leaks from a shower valve, waste or pipework (a plumber’s job)

Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.

Surfaces we seal

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

What happens on the day

There’s no need to move everything out, only the area right around the joints. Everything nearby is protected, and the job takes a few hours for a typical bath or shower, longer where several layers have been applied in most cases. For a job in Wood Green, parking and access are the things to plan: let us know about parking, the floor we will be working on and any lift or shared entrance.

  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. 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.

How to prepare

  • For business premises, tell us about site rules or sign-in
  • Keep children and pets away from the work area
  • Tell us about any previous sealing or DIY attempts

How to get a quote

Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved.

Get a price

Related advice

Remedial sealant in Wood Green: local notes

In a London flat, water from a failed bath or shower seal can reach the neighbours below, which is why it’s worth fixing early. London has hard water, so limescale builds up on sealant, grout and fittings, and it has to be cleaned off before new sealant goes in.

Wood Green is in London, so parking needs planning: let us know about parking bays, permits or a driveway. Schools such as St Michael's CofE Primary School are buildings too, and we reseal washrooms and kitchens in schools and businesses as well as homes.

Wood Green is about 3 miles south-west of Edmonton, in Greater London. Every kind of property in Wood Green can book us for remedial sealant, old or new, large or small. The work is guaranteed for a year. Wood Green is one of 764 places in Greater London where we work. Our London page covers work nearby (7 miles or so).

Jobs for remedial sealant in N22 and N8 is quoted and booked the same way as anywhere else. Whether your property is on Vincent Square, Station Road and Gathorne Road or anywhere close by, our applicators can take on the job. You’ll find Wood Green on the B151, so it’s easy for us to get to. If you are just outside Wood Green, we cover Noel Park (1 mile south-east), Turnpike Lane (1 mile south), Hornsey (1 mile south-west), Crouch End (1 mile south-west) and Stroud Green (2 miles south). Larger places within reach include London (7 miles south), City of Westminster (6 miles south), Marylebone (6 miles south), Kensington (8 miles south-west), St Pancras (5 miles south) and Shoreditch (5 miles south).

Around Wood Green

Typical jobs here are in homes near St Thomas More Catholic School, Woodside Park and The Nag's Head pub, among other places. Wood Green’s nearest station is Alexandra Palace station, about 0.5 miles west. Other landmarks nearby include Broomfield House Museum (1.3 miles north) and The Mall Wood Green (less than half a mile south). The countryside around Wood Green includes Railway Fields and Highgate Hill.

Map of Wood Green © OpenStreetMap contributors

How to look after the new joints

Once the sealant has cured, a few habits help it last:

  • Deal with small splits early
  • Keep an eye on the ceiling below the bathroom
  • Clean sealant with mild products only
  • Never fill a movement joint with mortar or grout

Leave the new joint to cure fully before it gets wet or moves: follow the cure time we give you.

A failing joint rarely gets better on its own. Each use pushes more water behind the bead, into whatever is behind or below. Early action keeps it to a sealant job.

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