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

Industrial and floor joint sealing in Cotman's Ash, Kent

Need floor joint sealing in Cotman's Ash? It’s simple: send details, get a quote, we seal, guaranteed.

  • Unfilled floor joints collecting dirt and grit
  • Filler that has parted from one face
  • Failing joints at loading bays and dock doors
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
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Floor joint sealing for businesses in Cotman's Ash

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

Floor joint sealing in Cotman's Ash

We have been sealing commercial joints since 2005. Applicators carry CSCS cards and work to your site rules, and the business is CHAS accredited and a Constructionline member, with public liability insurance in place. Completed joints come with a 12-month guarantee on our workmanship. We work on loading bays, retail and showroom floors and forklift and pallet-truck routes, and what we’re called in for most is brittle joint filler breaking up and drivers complaining about joints on a route. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Cotman's Ash is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Around smaller places such as Cotman's Ash, floor joints are often in barns and farm buildings turned into workshops, stores and offices. Whether it’s a farm store turned workshop or a storage unit, the joints need a product that suits the traffic.

Our workmanship is guaranteed for 12 months, in Cotman's Ash as everywhere else we work. If our installation lets you down in that time, we return and fix it.

Where
Cotman's Ash (TN15)
Region
Kent
Guarantee
12 months on our workmanship
Quote
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Questions about Cotman's Ash

Is Cotman's Ash too far out for you?

Not at all. Cotman's Ash is within our area. Our area covers London and the South East counties. Where we can, we group nearby jobs to make the most of each trip.

Would you work within a site like Sevenoaks Hospital?

Yes, healthcare and care buildings are part of our work. Work is phased so departments keep running, under the site’s own rules.

Can you work to our specification?

Yes. Include it with the drawings when you ask for a quote, and we’ll price the work to it.

Are you CHAS accredited and on Constructionline?

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

Is the floor joint work guaranteed?

There is a 12-month guarantee on our workmanship, and we hold public liability insurance.

What if there’s asbestos in the old mastic?

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 if asbestos is suspected, work stops until it’s tested. We don’t remove asbestos-containing materials.

Can weather delay the job?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.

General trades versus a specialist

The visible bead is only part of the job. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.

For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.

Traffic, movement and joints around Cotman's Ash

Cotman's Ash is about 19 miles from central London. The roads out of London are lined with trade parks and distribution sheds. Cotman's Ash is in the South East, one of the UK’s drier regions. Outside joints in yards and car parks still have to be dry before sealing, while winter salting gets into any joint left open.

A healthcare site such as Sevenoaks Hospital (to the south-west of Cotman's Ash) depends on car parks, ramps and service yards whose joints take traffic all day. Office parks like Chaucer Business Park (to the south of Cotman's Ash) have decks, ramps and clad elevations whose joints take movement every day. Schools like Kemsing Primary School often have long brick elevations with movement joints that age quietly.

Cotman's Ash is about 3 miles north-east of Sevenoaks, in Kent. We cover Cotman's Ash, with the same fixed quotes and 12-month guarantee as everywhere else. We work across 931 places in Kent, from busy centres to rural villages. Our London page has more on work in that area.

Anyone looking for floor joint sealing in TN15 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Sites close to Cotman's Ash are covered too, including Woodlands (1 mile north-east), Heaverham (1 mile south-east), Knatts Valley (1 mile north), Romney Street (1 mile north-west) and Kemsing (1 mile south-west). A short drive away, we cover Maidstone (13 miles east), Dartford (9 miles north), Sevenoaks (3 miles south-west), Royal Tunbridge Wells (13 miles south), Gravesend (10 miles north-east) and Tonbridge (8 miles south).

What’s near Cotman's Ash

Locally, jobs take us to sites close to The Rising Sun pub and Kemsing Down. The nearest railway station is Kemsing station, roughly 1.4 miles south. Well-known places in the area include Kemsing Castle Bank (0.9 miles south-west) and Sevenoaks Hospital (2.8 miles south-west). For a walk, there’s Dryhill Nature Reserve.

Map of Cotman's Ash © OpenStreetMap contributors

Different surfaces, different methods

Loading bays and dock areas

Joints at dock doors need a product that copes with the traffic and the conditions. Curing times also have to fit around deliveries.

Construction joints

Day joints sit where one section of slab was cast against another. They often see more movement than sawn joints and that shapes the choice of filler or sealant.

What sealant work can’t fix

We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:

  • Broken concrete either side of the joint
  • A floor that rocks at the joints, which needs a structural fix
  • Wide or random cracking that suggests a structural issue

If you are not sure, just call 01277 525 020 or send details through our quote form and we’ll give you a straight answer before you book.

Where we work in Cotman's Ash

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

On site: what to expect

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Joint faces are cleaned back to sound, dry surfaces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. Smaller jobs around Cotman's Ash can be grouped with others nearby. A fixed quote is given before anything starts.

  1. We agree the traffic routes and phasing with your site team.
  2. We point out joints whose edges need repairing first.
  3. Failed material and debris are removed and the joint cleaned.
  4. We fill the joints with the agreed product, finished level.
  5. You get a time for each zone to reopen.

Before we start on site

  • Tell us your opening times and when work is allowed
  • Point out parking and an unloading spot
  • Agree which areas must stay open

Get a fixed quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, call the office on 01277 525 020 or email the details over.

Get a price

Read more

What affects the price in Cotman's Ash

Your fixed quote is built from the real scope. It allows for:

  • Any access equipment needed
  • The size and state of each joint
  • Quantities, in metres or numbers
  • Specialist products, such as fire-rated or hygienic sealants

Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Sending details for a quote

There’s no need for a formal survey. These details are enough to start:

  • The postcode of the building
  • Your programme or deadline
  • Photos of the joints, close up and from further back
  • What the building is and how it’s used

A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or speak to us on 01277 525 020 or email a schedule or drawings if you’d rather talk the job through.

Why it’s worth doing now in Cotman's Ash

Waiting for a site-wide shutdown often means the joints keep getting worse. Phased in zones, the busiest routes can be treated first while the rest of the floor carries on. Older rural buildings around Cotman's Ash move with the seasons, and rigid or tired sealant can’t keep up. The right product, sized to the joint, copes much better.

The specified product makes a difference, and so does the preparation, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.

What you get with us

  • Fully insured, including public liability cover
  • Clear, fixed quotes
  • CSCS-carded applicators
  • Workmanship guaranteed for 12 months

Take a look at what affects the cost or our accreditations.

Accreditations

Trusted. Accredited. Insured.