Greater London · England

Floor & skirting joints in West Dulwich, Greater London

Floor joint sealing for West Dulwich, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Floor edges that trap water and grime
  • Open gaps along the bottom of skirting boards
  • Concrete floor joints that have broken down

Floor joint sealing near West Dulwich

Floor joint sealing around West Dulwich

Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent. Across Greater London, floors range from older suspended timber floors to concrete slabs in newer homes and commercial units, and each moves in its own way. That’s why the skirting and threshold joints need a flexible seal.

Managing a site like Dulwich Wood Primary School? Then floor and threshold joints in busy corridors wear quickly and are best resealed early. Rented homes near Sydenham Hill station change hands often, and a tidy floor and skirting joint helps a rental look ready for the next tenant.

West Dulwich is about 1 mile north-east of West Norwood, in Greater London. Across the SE21 area, we can carry out floor joint sealing at your property. West Dulwich is one of 764 places in Greater London where we work for floor joint sealing.

Jobs for floor joint sealing in SE21, SE27 and SE19 works the same way as everywhere else we cover. That includes homes and businesses on Berry Lane, Clive Road and Myton Road. West Dulwich is on the A2199, which makes it straightforward to reach with everything needed for floor joint sealing. Close by, we work in Sydenham Hill (1 mile east), West Norwood (1 mile south-west), Gipsy Hill (1 mile south), Dulwich (1 mile north) and Upper Norwood (1 mile south). Further out, we also cover London (5 miles north), City of Westminster (6 miles north-west), Marylebone (6 miles north-west), Kensington (7 miles north-west), St Pancras (7 miles north) and Shoreditch (6 miles north).

Around West Dulwich

We work in homes and buildings around The Wood House, Dulwich Prep & Senior and Kingsdale Foundation School, among other places. West Dulwich has its own railway station: Sydenham Hill station. Well-known places in the area include British Vintage Wireless And Television Museum (less than half a mile west) and St Christopher's Hospice (1.3 miles south-east). Green spaces nearby include Battersea Park Lake and Dulwich Upper Wood.

Map of West Dulwich © OpenStreetMap contributors

Floor joint sealing in West Dulwich

Wet-area floor joints keep water out of the gap behind skirting and plinths. We seal them with a flexible, water-resistant sealant and stops dirt collecting. Typical jobs include caulk that has cracked where the floor moves and dirt and water collecting in open floor joints, across concrete floor joints, commercial floors and skirting boards.

New flats are going up across London, many of them in larger developments. In a new development, snags are often reported through the developer or the managing agent, and shower seals that fail early, skirting joints that open up and gaps at thresholds are all common snags.

All our work comes with a one-year guarantee.

Mr Mastic applicators lined up beside the company vans, one holding a sealant gun
Where
West Dulwich (SE21, SE27, SE19)
Region
Greater London
Guarantee
One year on every job
Price
A clear quote up front
Phone
0345 464 0079
Last updated
26 October 2026

Should I try it myself first?

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.

Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

Landlord and commercial work in West Dulwich

Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.

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

West Dulwich questions

Can parking be tricky for a visit in West Dulwich?

It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.

Is West Dulwich in your area for floor joint sealing?

Yes. We work across London and the South East, and West Dulwich is part of that. You can phone 0345 464 0079 or email us and tell us what needs doing.

My floor grout keeps cracking in a line. Can you help?

Often, yes. A crack along a grout line often means the floor needs room to move. We rake out that line and seal it with flexible sealant.

Will the old sealant be removed?

Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.

Will there be a smell?

There can be a smell while the sealant cures. Ventilation helps.

What causes gaps between the floor and skirting?

It’s normally the floor moving: timber drying in winter, floors settling, or caulk that can’t stretch. A flexible bead keeps up with the movement.

How long does floor joint sealing take?

A typical job takes a few hours for most rooms, longer for large commercial floors. Your quote will say how long we expect yours to take.

What should I tell you?

The location, the problem and the rough size of the job. Photos by email help too.

How to look after the new joints

Aftercare is simple, and it makes a real difference:

  • Sweep along the edges of the floor
  • Have a cracking tiled floor checked before tiles break
  • Mark off resealed joints in warehouses
  • Ask before painting over a sealed joint

Silicone sealant isn’t made to take paint. If the joint will be painted, tell us beforehand so we use a paintable sealant.

A tiled floor that cracks along a line will keep cracking until it can move. Adding a movement joint early can stop cracks spreading to the tiles.

How the job changes by surface

Tiled floors

A crack running along a grout line is often a sign of a missing movement joint. That line is converted to a flexible joint if it’s in the right place.

Commercial floors

Commercial washrooms and kitchens have floor joints that get wet constantly. They’re resealed with a flexible, water-resistant sealant.

What we do, step by step

There is not much for you to do on the day. Show us the job and we will take it from there. The work itself takes a few hours, depending on the length of joint, including the tidy-up. For a job in West Dulwich, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.

  1. We look at the gap and the floor type and agree the right sealant.
  2. Whatever is in the joint now, whether caulk, grout or sealant, comes out.
  3. The joint is vacuumed clean, with backing fitted wherever depth matters.
  4. The sealant goes in, chosen for the floor and coloured to suit it.
  5. We tool the joint neatly and tell you when it can be walked on and cleaned.

Before we arrive

  • For indoor joints, keep the area dry beforehand if you can
  • Mention any parking rules near the property
  • Mention any leaks or damp you’ve noticed

How to get a quote

Want a quote for floor joint sealing? Please phone 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.

Ask for a quote

Read more

Why it’s worth doing now in West Dulwich

Leaving skirting gaps until the next decorating job lets dirt and draughts in. Sealing them now is a short job in most rooms. Converted houses in London often have a bathroom above someone else’s living room, and a slow leak from a failed seal can end up in the flat below. Putting it right early is much less trouble for homes in West Dulwich.

Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we’ll go through it with you.

What you get with us

  • Any old sealant cut out fully, not covered over
  • Tidy, careful work
  • Domestic, commercial and hotel work
  • White, clear, grey or coloured to suit, where the product allows

Read how sealant jobs are priced and what customers say.

What we’re called out for in West Dulwich

Wheels crossing an unfilled concrete joint chip its edges. Pallet trucks and trolleys knock the edges away and the joint gets wider.

These are the problems we are asked about most:

  • Perimeter joints in tiled floors filled with grout
  • Gaps at thresholds between rooms
  • Open gaps along the bottom of skirting boards
  • Gaps between floors and kitchen plinths

West Dulwich is in London, so parking needs planning: let us know about parking bays, permits or a driveway.

What your quote should include

  • Whether all the old sealant comes out first
  • What the quote includes, VAT included or not
  • How hidden problems are handled
  • Whether the sealant suits the joint

Our hiring checklist

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