Greater London · England

Floor & skirting joints in Kingsbury, Greater London

Floor joint sealing in Kingsbury from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.

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

Book floor joint sealing in Kingsbury

Floor joint sealing in Kingsbury, done properly

Floors move, and the joint where they meet a wall, skirting, threshold or another floor has to move with them. We seal skirting gaps, tiled floor movement joints and concrete floor joints using a product that suits the floor. If you are dealing with perimeter joints in tiled floors filled with grout and gaps at thresholds between rooms, we can put it right, whatever the surface.

Shops, offices and commercial units across London have hard-wearing floors with movement joints that need resealing as they wear, and new homes need their plot mastic finished properly before handover.

Every job is covered by our 12-month guarantee, wherever you are in Greater London.

Eleven members of the Mr Mastic team standing in front of branded white vans
Location
Kingsbury (NW9, HA3, HA9)
Wider area
Greater London
Guarantee
One year on every job
Quote
A clear price before any work starts
Call
0345 464 0079
Updated
26 October 2026

Floor joint sealing around Kingsbury

Many of London’s new homes are flats in bigger developments, where snags may need reporting through the developer or the 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 is why the skirting and threshold joints need a flexible seal.

For landlords with property near Hendon station, gaps at skirtings and thresholds are worth sealing between tenancies. For site and facilities teams at buildings such as Kingsbury Green Primary School, floor and threshold joints in busy corridors wear quickly and are best resealed early.

Kingsbury is about 2 miles north-east of Wembley, in Greater London. Homes, rented property, offices and hotels in Kingsbury is covered for floor joint sealing, old or new, large or small. The work is guaranteed for a year. Our Greater London coverage runs to 764 places, Kingsbury among them. We also work in London, around 10 miles away.

Postcode districts we cover here for floor joint sealing: NW9, HA3 and HA9. Streets in the area include Bacon Lane, Slough Lane and Minterne Road, and we cover them all. You will find Kingsbury on the A4006, which makes it straightforward to reach. We also cover Queensbury (1 mile north-west), West Hendon (1 mile east), The Hyde (1 mile east), Preston (1 mile south-west) and Colindale (1 mile north-east). We also work in nearby towns such as London (10 miles south-east), City of Westminster (7 miles south-east), Marylebone (7 miles south-east), Kensington (6 miles south-east), St Pancras (8 miles south-east) and Shoreditch (9 miles south-east).

Around Kingsbury

Around Kingsbury, our work takes us to homes and buildings near JFS, Woodfield School and J.J. Moon's pub. Kingsbury’s nearest station is Hendon station, about 1.5 miles east of the centre. Other landmarks nearby include Church Farmhouse Museum (2.1 miles east) and London Designer Outlet (1.9 miles south). Green spaces nearby include Castlebar Hill and Darland's Lake.

Map of Kingsbury © OpenStreetMap contributors

Do you need floor joint sealing in Kingsbury?

Water and dirt collect in open floor joints. In kitchens and bathrooms, mop water gets into the gap and can reach the subfloor.

Signs it’s time to call us include:

  • Open joints that fill with dirt
  • Worn sealant at door thresholds
  • Failed seals where bathroom floors meet baths and panels
  • Skirting that has pulled away from the floor

Community buildings like Church of the Holy Innocents are part of the picture too: floor and skirting joints in halls and kitchens wear like any others.

Before booking anyone

  • How the joint is cleaned and prepared
  • What the cure time is
  • Which colour the sealant will be
  • How much experience the applicator has

Choosing a sealant specialist

What affects the cost of floor joint sealing

We quote each job individually. These are the things that affect it:

  • The product the joint needs
  • How much old sealant there is and how hard it is to remove
  • How many rooms, windows or areas are involved
  • How much there is to do

We do not show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.

What to tell us for a quote

There’s no need for technical detail. It helps if you can tell us:

  • If it’s domestic, commercial or a hotel
  • The rough size of the job
  • Where the property is
  • What’s wrong with the joints now

We don’t publish a price list, because every job is different. Instead, we give you a clear quote for your job. To get started, phone 0345 464 0079 or send us an email.

What happens if it’s left?

Dirt builds up in open joints and makes the floor look worn. A neat sealed joint is easier to clean. In a flat in Kingsbury, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.

Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

Why book with us

  • Homes, businesses and hotels
  • 4.9 on Google from 180+ five-star reviews
  • White, clear, grey or another colour, product permitting
  • A 12-month guarantee on all work

Take a look at what affects the cost and our reviews.

Surface by surface

Tiled floors

A crack running along a grout line is often a sign of a missing movement joint. We rake out that line and seal it where it suits the floor.

Wet room and bathroom floors

Bathroom floors meet baths, trays, panels and skirting. They’re sealed with a flexible, anti-fungal silicone to keep water out of the edges.

Common questions in Kingsbury

Can parking be tricky for a visit in Kingsbury?

Parking in Kingsbury, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.

Do you work for landlords with property near Hendon station?

Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or email us with the details for a clear quote.

Which products do you use?

Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will explain our choice.

Can you quote for more than one area?

Yes. Tell us about everything you’d like done and we will quote it together.

How soon can the floor be mopped?

It depends on the product and the conditions. We give you the times for walking, cleaning and traffic when we finish so you can plan.

Is the work guaranteed?

Yes. All our work carries a one-year guarantee.

Is it worth trying it myself?

You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.

Can you use decorators’ caulk instead?

Caulk is fine for dry joints that don’t move, but it splits where the joint moves or gets wet. For most floor joints, we use a flexible sealant.

Work for landlords, hotels and businesses

We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.

In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.

What we cannot put right

Honest advice matters more to us than a booking, so here’s what sealant cannot fix:

  • Damaged concrete that needs breaking out and repairing
  • Large cracks that need a surveyor
  • Subfloor problems that need a flooring contractor

If you’re not sure, just phone 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.

Where we work in Kingsbury

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

The process

We keep the work tidy and contained to the area we are working on. The job generally takes a morning or an afternoon for most homes, and we explain the cure time before we leave. In Kingsbury, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.

  1. We start by looking at the floor, the gap and the traffic, then choose the product.
  2. Old caulk, grout or sealant is removed from the joint.
  3. The joint is cleaned, vacuumed and backed where depth needs controlling.
  4. We apply a flexible sealant, or a floor-joint product on concrete, in a suitable colour.
  5. We tool the joint neatly and tell you when it can be walked on and cleaned.

Before we arrive

  • Where the joints are inside, avoid wetting them before we arrive
  • Clear items away from the joints we’re working on
  • On commercial sites, let us know about site rules

How to get a quote

For floor joint sealing in Kingsbury, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.

Get a quick quote

Read more

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