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

Floor Joint Sealing in Southfleet

Floor joint sealing and filling in warehouses, factories and industrial units in Southfleet. CHAS accredited and fully insured, with a 12-month guarantee.

  • Soft sealant dragged out of trafficked joints
  • A gap opening alongside old joint filler
  • A rough ride across broken joints
1
Send details
Send the specification, photos or a marked-up plan.
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
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Floor joint sealing for businesses in Southfleet

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Looking after the joints

Sealant joints are maintenance items, and how long they last depends on how they’re treated. Our advice:

  • Respect the cure time before traffic returns
  • Clear packed debris from open joints regularly
  • Allow for topping up joints as a new slab settles
  • Make joint checks part of your floor inspections

On younger slabs, a fine line can open down one side of a filled joint as the concrete keeps shrinking. That is common and is normally dealt with by topping up once the slab has settled down.

Joints are easiest to look after when someone checks them regularly. We can quote a programme that starts with the busiest areas and keeps on top of the rest.

Floor joint sealing in Southfleet

It isn’t only heavy industry. Shops, showrooms and trade counters have joints that take trolleys, foot traffic and scrubber-driers, where a gappy, dirty joint looks untidy and snags castors. A flush, well-finished joint tidies the whole floor. We work on saw-cut induced joints, joints along racking aisles and construction joints, and what we’re called in for most is trucks and loads jolting over damaged joints and loading bay joints breaking down. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Southfleet it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Halls, schools and small commercial buildings near places like Southfleet have movement joints in brick, block and concrete too. They’re easily forgotten until water gets in or an edge breaks.

We sign every job off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.

The Mastic Doctor team standing beside their branded vans outside an office building
Place
Southfleet (DA13)
Wider area
Kent
Cover
A 12-month guarantee
Quotes
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026

On site: what to expect

Diagnose, treat, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. If others near Southfleet need work, visits can be combined, which keeps travel down. You’ll have a fixed quote before work starts.

  1. We agree the traffic routes and phasing with your site team.
  2. Any joints with broken edges are flagged before work starts.
  3. We clear each run back to clean concrete.
  4. We fill the joints with the agreed product, finished level.
  5. Each area is handed back when ready for traffic.

What we need from you

  • Flag any permit to work we’ll need
  • Point out parking and an unloading spot
  • Send asbestos survey details if the building is pre-2000

Request a quote

We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, ring 01277 525 020 or email drawings and photos.

Ask for a quote

Read more

When something else is needed

Part of a good diagnosis is knowing where sealant stops. We will tell you if the real problem is one of these:

  • Spalled arrises, which need an edge repair first
  • A floor that is out of level for the racking or trucks
  • Damaged or worn floor coatings and screeds

Not sure which it is? You can call the office on 01277 525 020 or send photos by email and we’ll tell you honestly before you book.

Surfaces we seal

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

Questions we’re asked in Southfleet

Is Southfleet too small for you to travel to?

No. Places such as Southfleet are covered as much as the big towns. We work across Greater London and the South East. Good photos up front let us bring everything on the first visit.

Will you take on work at estates like Fawkham Business Park, close to Southfleet?

Yes. Our area takes in Southfleet and its surroundings, with estates and business parks such as Fawkham Business Park included. To start, just speak to us on 01277 525 020 or email a schedule or drawings with the unit, the joints involved and your access times.

What happens if old sealant might contain asbestos?

Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and work stops until any suspect material has been tested. Removing asbestos is a job for asbestos specialists, not us.

How long does a typical visit take?

It depends on the scope, but the work typically takes anything from a day for one loading bay to several days for a large floor, split into phases. Larger or phased jobs take longer, and we will give you a timescale with the quote.

Do you guarantee industrial floor joints?

A 12-month guarantee covers the work we do. It covers our workmanship, not later slab movement or damage from impacts.

Are you insured?

Yes. We’re fully insured, including public liability cover.

Can you follow the specification on our project?

Yes. Send it with your enquiry, and we’ll price the work to it, flagging anything that needs clarifying.

Floors, slabs and movement joints in Southfleet

The South East is one of the drier parts of the UK. Outside joints in yards and car parks still have to be dry before sealing, and gritting in cold spells finds its way into open joints. Southfleet lies roughly 19 miles out from central London. Warehousing clusters around the motorways that ring and radiate from London; their floors carry heavy traffic every shift.

For a centre such as Imperial Retail Park (2.7 miles north-east of Southfleet), the service yard and car park joints normally need attention first. Business parks such as Fawkham Business Park (1.7 miles south-west of Southfleet) have car parks, paved areas and long brick and panel elevations, all with movement joints.

Southfleet is about 2 miles south-west of Northfleet, in Kent. If you’re looking for floor joint sealing in Southfleet, we can help. Southfleet is one of 931 places in Kent on our list for floor joints. For work in that direction, see our London page, about 19 miles away.

Anyone looking for floor joint sealing in DA13 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Streets here include Red Street, Gloxinia Road and Brakefield Road, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Hook Green (1 mile south-west), Northfleet Green (1 mile east), Betsham (1 mile north-west), Painters Ash (1 mile north-east) and Springhead (1 mile north) for floor joints. A short drive away, we cover Maidstone (13 miles south-east), Dartford (5 miles north-west), Sevenoaks (11 miles south-west), Gravesend (3 miles north-east), Tonbridge (15 miles south) and Swanley (7 miles west).

Near you in Southfleet

Recent enquiries here include premises near Northfleet School for Girls, Black Lion pub and Longfield Chalk Bank, among other places. Southfleet’s nearest station is Longfield station, roughly 1.5 miles south-west of the centre. Well-known places in the area include Gravesham Community Hospital (2.7 miles north-east) and Bluewater (2.9 miles north-west). The countryside around Southfleet includes Sawyers Lake.

Map of Southfleet © OpenStreetMap contributors

When to call us in Southfleet

Joints near dock doors see colder air, rain blown in and water off vehicles, as well as the tightest turning loads. They are often the first on a site to break down.

Any of the following is a good reason to get the joints checked over:

  • Flexible sealant torn out by wheels
  • Untidy open joints in a retail unit
  • Joint fill separating from the concrete
  • Failing joints at loading bays and dock doors

Another example is Ebbsfleet Business Park, 2.4 miles north of Southfleet, where floors and yards would be done in stages around the occupiers.

Questions to ask before you book

  • What the guarantee covers, and for how long
  • Will RAMS and insurance details be available?
  • Health and safety accreditation such as CHAS
  • Will failed sealant be removed rather than covered?

How to choose a sealant contractor

Surface by surface

Flexible floor sealants

Polyurethane floor sealants are available in a range of colours so ask if the colour matters.

Retail and showroom floors

Polished and coated concrete floors in shops and showrooms show every joint. We aim for a tidy, flush finish that suits the floor, and we will confirm the colours available for the specified product.

What sets the cost

Quotes vary with the job. Expect it to depend on:

  • How much there is to seal
  • Phasing around occupants
  • How accessible the joints are
  • The product specified

The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we’ll explain how it’s made up.

Details that help us quote

However big the job, the same details help:

  • The type of building and who uses it
  • Access details, including height
  • Approximate linear metres or a joint schedule
  • Photos of the joints, close up and from further back

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to call 01277 525 020 or email a schedule or drawings with what you know.

Accreditations

Trusted. Accredited. Insured.