Greater London · England

Floor & skirting joints in Seven Dials, Greater London

Professional floor joint sealing in and around Seven Dials, with old sealant always removed completely and a 12-month guarantee.

  • Open joints around bathroom floor edges
  • Threshold joints that have opened or worn
  • Concrete floor joints that have broken down

Book floor joint sealing in Seven Dials

For landlords and businesses

Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.

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

Floor joint sealing in Seven Dials, done properly

In kitchens and bathrooms, the joint where the floor meets a bath panel, plinth or skirting takes mop water every day. We seal them with a flexible, water-resistant sealant and stops dirt collecting. If you’re dealing with chipped and open joints in warehouse floors and tiled floors with no room to move, we can put it right, on wet room & bathroom floors, thresholds and skirting boards alike.

Across London, commercial floors have movement joints that break down under heavy foot traffic, while new homes need a neat, sound finish around frames, baths and kitchens before handover.

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

The Mr Mastic team in navy uniforms in front of three Mr Mastic vans
Place
Seven Dials (W1F, W1D, W1T)
Wider area
Greater London
Cover
One year on every job
Quotes
A clear quote up front
Telephone
0345 464 0079
Updated
26 October 2026

Aftercare tips

Joint life depends on how it’s used and looked after. We suggest:

  • Keep caulk for dry, still joints only
  • Don’t slide heavy items over sealed joints
  • Ask before painting over a sealed joint
  • Have a cracking tiled floor checked before tiles break

Check the joints after the first winter. If anything has opened, it’s easy to reseal before they spread.

Concrete joints damaged by traffic get worse quickly. Early resealing helps keep the joint intact and the floor safer.

Honest limits

Honest advice matters more to us than a booking, so here’s what new sealant will not do:

  • Subfloor problems that need a flooring contractor
  • Failed waterproofing under a wet room floor
  • Loose, hollow or cracked tiles, which need a tiler

If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.

Joints and surfaces we work on

  • Thresholds
  • Concrete floor joints
  • Skirting boards
  • Commercial floors
  • Tiled floors
  • Wet room & bathroom floors

Questions from Seven Dials

Do you work for landlords with property near Tottenham Court Road station?

Yes, we work for landlords and letting agents. Just call 0345 464 0079 or email us and tell us about the property, and we will send you a clear quote.

Can you do floor joint sealing in Seven Dials?

Yes. Our work covers London and the South East, and Seven Dials is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.

Will the old sealant be removed?

Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.

Where are you based?

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

Do you hold any approvals?

Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.

Is there a guarantee?

Yes. There’s a 12-month guarantee on every job.

What do you need from me for a quote?

The location, the problem and the rough size of the job. If you can, email a few pictures.

Do I need to be at home?

Access is agreed with you when the job is booked. Indoors, that generally means someone at home.

Can I do it myself?

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.

Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.

Signs you need floor joint sealing in Seven Dials

Floors and walls move a little with the seasons. In winter, with the heating on, timber dries and gaps open and they change again in summer.

Signs it’s time to call us include:

  • Floor edges that trap water and grime
  • Failed joint filler in concrete floors
  • Skirting caulk that keeps splitting
  • Gaps opening between the floor and skirting

Schools such as St Josephs Catholic Primary School are buildings too, and floor joints in corridors, halls and entrances take heavy wear and need resealing before the edges break up.

What to look for in a quote

  • Whether the sealant suits the joint
  • Are they insured?
  • Who turns up on the day
  • How long the guarantee is

How to choose a mastic man

Different surfaces, different methods

Skirting boards

Skirting pulls away from the floor as floors shrink and settle. A flexible sealant closes the gap without cracking in a colour to suit.

Concrete floor joints

Concrete floors have sawn or formed joints to control cracking. We reseal them with a floor-joint product suited to the traffic.

What we do, step by step

You don’t need to clear the whole room or building, just the space around the work. We protect the rest, and the job takes a morning or an afternoon for most homes for a typical job. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Seven Dials. A visitor permit or a nearby bay makes the visit run more smoothly.

  1. First, the floor type, the gap and the traffic are checked.
  2. Any old caulk, grout or sealant is raked or cut out.
  3. The joint is vacuumed clean and backing fitted where needed.
  4. We apply the sealant in a colour that suits the floor.
  5. We tool it neatly and tell you when it can be walked on and cleaned.

Before we arrive

  • Let us know about stairs, lifts or work at height
  • Let us know about parking restrictions
  • Clear items away from the joints we’re working on

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 talk you through the work.

Get a price

Read more

Joints and finishes in Seven Dials homes

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 they don’t all move the same way. That is why the skirting and threshold joints need a flexible seal.

If you look after a church, hall or community building such as Soho Baptist Chapel, floor and skirting joints in halls and kitchens wear like any others. Rented homes near Tottenham Court Road station change hands often, and open skirting and floor joints collect dirt and water, so seal them while the property is empty.

Seven Dials is about 1 mile east of City of Westminster, in Greater London. For floor joint sealing in and around Seven Dials, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We cover Greater London from our Crawley base, Seven Dials included. Seven Dials is one of 764 places in Greater London where we work.

We work across W1F, W1D and W1T for floor joint sealing and the streets around it. Floor joint sealing is available to properties on Duck Lane, Drury Lane and Bridle Lane. With the A301 and A400 close by, Seven Dials is easy for our applicators to reach. Close by, we work in St Giles (1 mile north), West End (1 mile west), Soho (1 mile west), Covent Garden (1 mile east) and Chinatown (1 mile south-west). We also work in nearby towns such as Kensington (3 miles west), Walthamstow (7 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Stockwell (3 miles south) and Orpington (13 miles south-east).

Near you in Seven Dials

Typical jobs here are in homes near London Nautical School, St Anne's Churchyard and LSE Shaw Library, among other places. Nearby too are Two Brewers pub (under half a mile south-west) and Mercers' School (0.8 miles east). There’s a railway station in Seven Dials itself: Tottenham Court Road station. Other landmarks nearby include Kingly Court (0.5 miles west) and St Paul's Hospital (under half a mile north-east). Open spaces near Seven Dials include Barnsbury Wood and Ludgate Hill.

Map of Seven Dials © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job