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

Floor Joint Sealing in Lewson Street

Sealant work in Lewson Street for main contractors, managing agents and facilities managers: floor joint sealing and filling in warehouses, factories and industrial units, with a fixed quote first.

  • Cracked and crumbling joint fill
  • Scruffy, dirty joint lines on a shop or showroom floor
  • A rough ride across broken joints
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Need floor joint sealing in Lewson Street?

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

Our process

Before any cutting starts, the area is protected: tape along each joint edge and covers over finishes, stock and equipment close by. The work itself usually takes anything from a day for one loading bay to several days for a large floor, split into phases, and we clear our waste as we work. Rural sites near Lewson Street may need directions, gate codes or a contact on site. Send that with the details and we’ll confirm the plan with the quote.

  1. Each area is assessed for joint width, arris damage and the wheels that cross it.
  2. A fixed quote follows, listing the treatment for each area and the order of work.
  3. Each joint is cleared of old fill and dirt and taken back to clean, sound edges.
  4. We vacuum each run and prime it if the chosen product requires a primer.
  5. The chosen product is placed to its specified depth and trimmed level with the floor.
  6. Each phase reopens when the product is ready for wheels, then we start the next.

Before we start on site

  • Flag any permit to work we’ll need
  • Confirm the product named in the specification
  • Explain the parking and delivery arrangements

Get a fixed quote

Send us photos, drawings or a joint schedule and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.

Get a price

Related advice

Floor joint sealing for commercial buildings in Lewson Street

We diagnose the floor first rather than guessing at a product: joint widths, whether the joints are still opening, what runs over them and how the edges have held up. That tells us whether semi-rigid filler or flexible sealant suits each run, area by area where it needs to be. If you have broken arrises where pallet trucks cross and saw-cut joints left open and packed with grit, we can help, whatever the surface. Searching for sealant specialists in Lewson Street? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.

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

Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Lewson Street (ME9)
Wider area
Kent
Guarantee
12 months on every job
Price
Quoted before any work starts
Call
01277 525 020
Last updated
3 November 2026

When it isn’t the sealant

Honesty saves time and money. Fresh joints won’t solve:

  • Structural cracking in the slab
  • Uneven floors that need grinding or levelling
  • Joint edges that have already broken away, which need repairing before filling (we will tell you if so)

Not sure which it is? You can phone 01277 525 020 or email drawings and photos and we’ll tell you honestly before you book.

Joints and surfaces we work on

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

Common questions from Lewson Street clients

Is Lewson Street off your patch?

No. Places such as Lewson Street are covered as much as the big towns. We cover Greater London and the counties of the South East. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

Will our site in Lewson Street have to close for joint sealing?

Rarely. Work is phased around your operations. Tell us which hours and entrances we can use and we’ll plan from there.

Is it fine to apply new sealant on top of old?

No, never. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.

Can weather delay the job?

It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.

Are you insured?

Yes. We’re fully insured, and the certificate can go with your quote.

How many days will you need on site?

That varies with the scale of the job, but the work normally takes anything from a day for one loading bay to several days for a large floor, split into phases. For bigger or phased jobs, we will set out a timescale with the quote.

What happens if the joint edges are damaged?

Filling against broken edges doesn’t last. We’ll tell you if the joint edges need repairing first, so you can decide how to proceed.

General trades versus a specialist

For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.

Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong typically costs more in the end than doing them right.

Why it’s worth doing now in Lewson Street

Some runs only need partial renewal or topping up. Where existing filler is well bonded and the gap beside it is small, a full strip-out isn’t always needed, and we will say which joints need what. Converted and older buildings near places like Lewson Street tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

The specified product makes a difference, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.

Why us?

  • Over 20 years of commercial sealing
  • Joints cleaned back to sound surfaces
  • Health and safety: CHAS accredited
  • Constructionline member for supplier checks

See our cost guide or how we’re accredited.

Keeping the joints sound

Once the work is signed off, a little attention goes a long way:

  • Put loading bays at the top of the list
  • Walk the main routes and inspect joint lines on a regular cycle
  • Tell us about strong cleaning chemicals before we quote
  • Sweep debris out of open joints until they can be filled

We will give you a time before trucks can run over the new joints, and it’s worth enforcing. Cones or barriers stop the first driver cutting the corner.

Every day an open joint stays full of grit, the edges take more punishment. Getting it filled stops the damage while it is still a straightforward job.

Floor joint sealing around Lewson Street: how the place shapes the job

With the shore within about 3 miles, Lewson Street counts as a coastal location. Near the sea, external slabs, ramps and decks see salt air and driven rain as well as their usual loads, and edges left open tend to break up faster. At about 41 miles from central London, Lewson Street is within reach of the capital. The roads out of London are lined with trade parks and distribution sheds.

In and around Lewson Street, the right filler or sealant for each joint depends on the traffic and the movement it takes. Schools like Teynham Parochial Church of England Primary School often have long brick elevations with movement joints that age quietly.

Lewson Street is about 3 miles west of Faversham, in Kent. Anywhere in ME9, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. We work across 931 places in Kent, large and small. London is covered too, around 41 miles from Lewson Street.

We cover the ME9 postcode districts for floor joints. We cover commercial and managed buildings on World's End, Lewson Street Road and Norton Road. Close to Lewson Street, our area also takes in Tickham (1 mile south-west), Norton Ash (1 mile north-east), Loyterton (1 mile south-west), Deerton Street (1 mile north-east) and Teynham (1 mile north-west). Bigger towns within reach include Maidstone (13 miles west), Ashford (12 miles south), Canterbury (12 miles east), Sittingbourne (4 miles north-west), Whitstable (10 miles east) and Faversham (3 miles east).

What’s near Lewson Street

Locally, jobs take us to sites close to The Plough Inn, among other places. Lewson Street’s nearest station is Teynham station, about 1.3 miles north-west. Well-known places in the area include Sittingbourne Heritage Museum (3.6 miles north-west) and Newnham Castle (2.2 miles south).

Map of Lewson Street © OpenStreetMap contributors

Owners, agents and contractors

CHAS accredited and a Constructionline member, we make supplier vetting simple. Our insurance certificate can be sent along with the quote.

For main contractors, we work as the sealant subcontractor. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.

Accreditations

Trusted. Accredited. Insured.