Greater London · England

Floor & skirting joints in Fitzrovia, Greater London

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

  • Failed joint filler in concrete floors
  • Worn sealant at door thresholds
  • Open joints that fill with dirt

Book floor joint sealing in Fitzrovia

How we handle floor joint sealing in Fitzrovia

Concrete floors in warehouses and units have joints that take heavy wear. Each is resealed with a floor-joint product suited to what runs over it. If you are dealing with dirt and water collecting in open floor joints and concrete floor joints that have broken down, we can help, on skirting boards, concrete floor joints and tiled floors alike.

From brand-new flats to converted terraces with new flooring, London has every kind of floor. Every joint between floor, skirting and threshold has to cope with some movement.

The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or drop us an email.

Eleven members of the Mr Mastic team standing in front of branded white vans
Location
Fitzrovia (NW1W, W1T, W1G)
Region
Greater London
Guarantee
12 months on all our work
Quotes
Quoted before any work starts
Telephone
0345 464 0079
Last updated
26 October 2026

Common problems we fix in Fitzrovia

When a tiled floor has no movement joints, the grout takes the strain. You’ll see a crack running along the grout, where a flexible joint should have been.

Common reasons people contact us include:

  • Gaps between floors and kitchen plinths
  • Perimeter joints in tiled floors filled with grout
  • Threshold joints that have opened or worn
  • Skirting caulk that keeps splitting

For landlords with property near London Euston station, open skirting and floor joints collect dirt and water, so seal them while the property is empty.

Questions to ask before you book

  • What happens if the job turns out different
  • Whether the sealant suits the joint
  • Whether VAT is included
  • Which colour the sealant will be

Our hiring checklist

Keeping the joints in good condition

Aftercare is simple:

  • Walk round the room once a year and look at the edges
  • Do not fill floor joints with caulk where they move or get wet
  • Lift furniture rather than dragging it across joints
  • Avoid sloshing water against skirting

Avoid flooding the floor when you clean. Keeping the edges drier helps the sealant last longer.

Open skirting gaps let in draughts, dust and sometimes insects. Sealing it early keeps the room cleaner and the edges sound.

Floor joint sealing in Fitzrovia: local notes

Floors around Greater London run from suspended timber in older homes to concrete in newer houses and units, and each moves in its own way. The joint at the skirting or threshold has to allow for that. Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the managing agent.

For site and facilities teams at buildings such as All Souls CofE Primary School, floor joints in corridors, halls and entrances take heavy wear and need resealing before the edges break up. If you look after a church, hall or community building such as Whitefield's Tabernacle, joints in its floors, skirtings and thresholds need resealing as they wear.

Fitzrovia is about 1 mile north-east of Marylebone, in Greater London. Homes, rented property, offices and hotels in Fitzrovia is covered for floor joint sealing, old or new, large or small. The work is guaranteed for a year. Our area takes in 764 places across Greater London, from the larger towns to small villages.

Work in NW1W, W1T and W1G is quoted and booked the same way as anywhere else. If you need floor joint sealing at a property on Euston Road, Duke's Road and Market Place or a nearby road, we can help. You’ll find Fitzrovia on the A501 and A4200, which makes it straightforward to reach. Other places close to Fitzrovia include Euston (1 mile north-east), Marylebone (1 mile south-west), Bloomsbury (1 mile east), Somers Town (1 mile north-east) and Soho (1 mile south-east). Within a short drive, we also cover Kensington (3 miles south-west), Shoreditch (3 miles east), Walthamstow (7 miles north-east), Whitechapel (3 miles east), Hampstead (3 miles north-west) and Ruislip (12 miles west).

Near you in Fitzrovia

Around Fitzrovia, our work takes us to homes and buildings near Carpenters Arms, UCL School of Slavonic and East European Studies and St Anne's Churchyard and the streets around them. You’ll also find Wellcome Library (under half a mile north-east) and Maria Fidelis Catholic School FCJ (less than half a mile north). Fitzrovia has its own railway station: London Euston station. Nearby you will also find London Foot Hospital (under half a mile south-west) and Blindiana Museum (under half a mile west). Not far away are St. James's Park Lake and Primrose Hill.

Map of Fitzrovia © OpenStreetMap contributors

What the job involves on each surface

Tiled floors

Perimeter joints in tiled floors should be sealant, not grout. Grout at the edge is removed and replaced with sealant.

Thresholds

Thresholds take daily traffic, so we choose a hard-wearing, flexible product.

What affects the quote in Fitzrovia

Some jobs are bigger than they look, and some smaller. The main factors:

  • Whether there’s mould to deal with
  • When we can work, for business premises
  • Whether the work is at height
  • How much old sealant there is and how hard it is to remove

Doing several joints on one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. We’ll give you a clear price for the lot.

Asking for a quote

There’s no need for technical detail. Just tell us:

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

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

Why act early in Fitzrovia

Waiting until the next redecoration can mean a winter of draughts and dirt in the gaps. It’s a quick job to seal them now for most homes. 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.

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 the work is at height. Your quote takes all of that into account.

Why book with us

  • An ARBOMaster approved applicator
  • We’re fully insured
  • Quality sealants from Arbo and Everbuild
  • Experience in homes, commercial sites and hotels

Read our cost guide and our reviews.

Fitzrovia: your questions answered

Can parking be tricky for a visit in Fitzrovia?

London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.

I let a flat near London Euston station. Can you help?

Yes. We work for landlords and letting agents as well as householders. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.

Can you seal where the floor meets the bath panel?

Yes. We cut out any old sealant or caulk and reseal with flexible silicone.

What should I tell you?

A short description and the location. We will ask anything else we need to know.

Why has a gap opened under my skirting?

It’s normally the floor moving: timber drying in winter, floors settling, or caulk that can’t stretch. A flexible sealant stays closed as the floor moves.

Do I have to be there?

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

Can new sealant go over the old?

No. New silicone won’t bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.

Will you leave a mess?

Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.

Should I try it myself first?

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.

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.

What happens on the day

We bring everything the job needs with us, so you don’t need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours, depending on the length of joint. For a job in Fitzrovia, 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. First, the floor type, the gap and the traffic are checked.
  2. We remove what’s in the joint now.
  3. We vacuum out the joint and add backing where the depth needs setting.
  4. The chosen sealant goes in, coloured to suit the floor.
  5. We tool it neatly and tell you when it can be walked on and cleaned.

Before we arrive

  • Clear the area around the work
  • On commercial sites, let us know about site rules
  • Let us know if you’ve seen damp or leaks

How to get a quote

Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will talk you through the work.

Get a quick quote

Related advice

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