The Mastic Doctor team standing beside their branded vans outside an office building
Greater London · England

Floor Joint Sealing contractors in Clare Market

Floor joint sealing and filling in warehouses, factories and industrial units across Clare Market, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Trucks and loads jolting over damaged joints
  • Flexible sealant torn out by wheels
  • Saw-cut joints left open and packed with grit
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS accredited
£5m public liability

Need floor joint sealing in Clare Market?

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

How we handle floor joint sealing in Clare Market

Most industrial slabs are divided into panels by saw-cut joints and construction joints, and every one of those joints is an exposed edge under hard wheels. Our job is to put the right filler or sealant into them for the loads and the movement they see, so the arrises are supported and grit stays out. We work on construction joints, retail and showroom floors and joints along racking aisles, and the failures we are asked to look at most are grimy joint lines spoiling a showroom floor and broken arrises where pallet trucks cross. One point of contact handles commercial sealant work in Clare Market from the first photographs to the final walk-round, whether it’s one building or several.

Floor and movement joints in London take heavy use: car park decks, loading bays, shopping centre malls and podiums over occupied space. When a joint fails, grit and water get in and the arrises start to break up, so it pays to act early.

Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.

Location
Clare Market (WC2H, W1D, WC2B)
Wider area
Greater London
Cover
A 12-month guarantee
Quote
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Joints that move: notes for Clare Market

Less than 3 miles from Clare Market there are at least three named estates and business parks. Their warehouses, yards and car parks are exactly where joints take the most punishment. Few London car parks or loading bays can be taken out of use for more than a short spell, so the work is broken into short sections agreed with the building manager.

Another example is Southwark Bridge Business Centre, 1.2 miles south-east of Clare Market, where floors and yards would be done in stages around the occupiers. Retail centres such as Brunswick Centre (0.7 miles north-west of Clare Market) have floors, service yards and car parks with joints under constant traffic. If you manage units on an estate such as Grand Vitesse Industrial Estate (1 mile south-east of Clare Market), the floor joints under forklifts and pallet trucks and the slab joints in the yard are the ones to watch.

Clare Market is about 1 mile south of St Pancras, in Greater London. Any commercial site in Clare Market is covered, for single jobs and planned programmes alike. Clare Market is one of 764 places we cover in Greater London.

Business premises anywhere in WC2H, W1D and WC2B are within our area. For a building on Drury Lane, New Square and Old Square or nearby, send details and we will quote for floor joints. With the A4 and A301 nearby, Clare Market is straightforward for us to reach. Just outside Clare Market, we also work in Aldwych (1 mile south), Temple Bar (1 mile east), Covent Garden (1 mile south-west), Temple (1 mile south-east) and Seven Dials (1 mile west). Further afield, our area takes in Kensington (4 miles west), Walthamstow (6 miles north-east), Hampstead (4 miles north-west), Ruislip (13 miles west), Stockwell (3 miles south) and Orpington (13 miles south-east).

Local landmarks in Clare Market

In Clare Market, that means premises near Lincoln's Inn Fields, London Nautical School and LSE Shaw Library and the streets around them. You will also find Ye Old White Horse pub (less than half a mile north) and Mercers' School (under half a mile north-east). Clare Market’s nearest station is London Charing Cross station, about 0.6 miles south-west. Well-known places in the area include St Philip's Hospital (less than half a mile north-west) and Montfichet's Tower (0.7 miles east). Not far away are Ludgate Hill and St. James's Park Lake.

Map of Clare Market © OpenStreetMap contributors

On site: what to expect

Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then reopened once the sealant allows before the next one starts. Most London premises stay occupied while we’re on site, so we agree zones and timings with the building or facilities manager. Areas are handed back as each section is finished.

  1. A floor survey records every joint, its edges and what crosses it.
  2. You receive a fixed quote showing products and phasing.
  3. Old fill and packed debris come out until both faces are sound.
  4. Dust is vacuumed out and primer applied where specified.
  5. Filler or sealant is placed to depth and finished flush.
  6. We hand each phase back when it can take traffic.

Before we start on site

  • Confirm the product named in the specification
  • Let building users know which areas are affected
  • Flag any permit to work we will need

Ask for a quote

Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.

Ask for a quote

Read more

What affects the price in Clare Market

These are the things that shape the price:

  • Which sealant the job calls for
  • The total length or number of joints
  • Any access equipment needed
  • Removal of failed or old sealant

What a job costs comes down to how many linear metres there are, how much old material needs removing and the access. Call for a fixed quote when you’re ready.

Sending details for a quote

A good diagnosis starts with the right details. Let us know:

  • The type of building and who uses it
  • The postcode of the building
  • Anything awkward about access or site hours
  • Photos of the joints, close up and from further back

Need a figure for a tender or a budget? We will quote against your scope and drawings you can plan around. For a chat about it beforehand, call 01277 525 020 or send details through our quote form.

Keeping the joints sound

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:

  • Respect the cure time before traffic returns
  • Let us know what the floor is cleaned with
  • Expect fillers on young slabs to need a top-up
  • Walk the main routes and inspect joint lines on a regular cycle

Young concrete carries on shrinking, so some fillers part slightly from one face. It is a known trait of new floors and a later top-up deals with it.

Regular inspection catches failing fills before the edges go. We can quote a programme that starts with the busiest areas and keeps on top of the rest.

FAQs: Clare Market

Do you take on jobs in Clare Market where loading and access are tightly controlled?

Yes. Inductions, permits and timed loading are routine for us in London. Send the building rules and access times with your enquiry. The ULEZ covers the whole of Greater London, which we allow for

Can you work on a hospital site such as Royal London Hospital for Integrated Medicine?

Yes. We work in healthcare settings as well as offices and schools. Work is phased so departments keep running, under the site’s own rules.

Are you CHAS accredited and on Constructionline?

Yes. We are CHAS accredited, we’re a Constructionline member and we use CSCS-carded applicators.

How many days will you need on site?

That varies with the scale of the job, but the work usually takes between a day and a number of days, set by the joint lengths, the edge condition and the phasing you need. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

Do you use semi-rigid filler or flexible sealant on floor joints?

The answer comes from the traffic and the joint’s movement. Forklift routes generally call for a semi-rigid filler that holds the arrises, while joints that move more take a flexible sealant.

Why has the filler pulled away from one side?

Young concrete carries on shrinking for a long time, so a semi-rigid filler can part from one face. A top-up normally puts it right.

Will you just go over the old sealant?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

When to bring in a specialist

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

When something else is needed

A few problems need another trade or a different fix, and we say so rather than covering them up:

  • Worn screed or surface finishes
  • Broken concrete either side of the joint
  • Slab panels that rock or move under load

Not sure which it is? You can speak to us on 01277 525 020 or email the details over and we’ll tell you honestly before you book.

Surfaces we seal

  • Saw-cut induced joints
  • Forklift and pallet-truck routes
  • Construction joints
  • Retail and showroom floors
  • Joints along racking aisles
  • Loading bays

Building owners, agents and FMs in Clare Market

We work for building owners and managing agents on everything from one building to a spread of sites around Clare Market. One quote can cover more than one site, so there’s one set of paperwork to deal with.

Hospitality, education, healthcare, office and retail clients come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.

Accreditations

Trusted. Accredited. Insured.