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

Floor Joint Sealing contractors in Herne

Floor joint sealing and filling in warehouses, factories and industrial units throughout Herne and nearby, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Brittle joint filler breaking up
  • A gap opening alongside old joint filler
  • Grimy joint lines spoiling a showroom floor
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
Constructionline member
£5m public liability

Floor joint sealing for Herne sites

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

Floor joint sealing in Herne

Sometimes the concrete either side of a joint has already spalled. A filler laid against broken edges has nothing sound to grip, so if the edges need repair before any filling, we’ll say so and leave that decision with you. We work on forklift and pallet-truck routes, loading bays and retail and showroom floors, and what we’re called in for most is sealant pulled out along a truck route and dock area joints that have failed first. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Herne, preparation and product choice get the time they need.

Small units near places like Herne are often converted farm buildings with new concrete floors. Joints in those slabs need a product suited to whatever runs over them, from pallet trucks to foot traffic.

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
Where
Herne (CT6)
Region
Kent
Guarantee
A 12-month guarantee
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026

Diagnose, treat, sign off

We follow your site rules from the start: signing in, inductions and any permit to work. Once we are cleared to begin, we take the joints in the sequence agreed with you, and each area is checked before we leave it. For a job in Herne, the main thing is a clear picture of the work. A fixed quote follows.

  1. We walk the floor and mark up joint widths, edge damage and traffic routes.
  2. The treatment and the zones are set out in a fixed quote.
  3. Each joint is cut or routed back to clean, sound concrete.
  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.

Getting the site ready

  • Tell us your opening times and when work is allowed
  • For older buildings, check the asbestos register before work
  • Tell us what induction or permit system the site runs

Getting a fixed quote

To get a fixed quote, call the office on 01277 525 020 or use the quote form, telling us the site location and the nature of the job. You can also send details through our quote form.

Get a price

Advice

Your questions answered

Can being near the sea in Herne affect the sealant we need?

It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.

Do you cover business parks and estates near Herne, such as Eddington Business Park?

Yes, sites like Eddington Business Park are within our area, along with the rest of Herne. Photos and a short description are enough for a first look.

Will you just go over the old sealant?

No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.

Are you CHAS accredited?

Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.

Why is there a gap next to the joint filler?

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.

Is the floor joint work guaranteed?

There is a 12-month guarantee on our workmanship and the work is covered by public liability insurance.

Can you work to our specification?

Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.

Building owners, agents and FMs in Herne

Main contractors use us as their sealant subcontractor. Programme, specification and site rules come first.

FMs need a contractor who is easy to get on site. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.

How the quote is worked out

Before we quote, we look at:

  • Removal of failed or old sealant
  • Which sealant the job calls for
  • Distance, for remote addresses
  • Site requirements such as inductions and permits

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.

Before you send an enquiry

We can often quote from photos and a few details. Please tell us:

  • Approximate linear metres or a joint schedule
  • The type of building and who uses it
  • Any specification or named product
  • Anything awkward about access or site hours

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call the office on 01277 525 020 or email a schedule or drawings with what you know.

What we can’t put right

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. These need a different solution:

  • Joint edges that have already broken away, which need repairing before filling (we’ll tell you if so)
  • Slab panels that rock or move under load
  • Damaged or worn floor coatings and screeds

If in doubt, phone 01277 525 020 or email a schedule or drawings and we’ll say what we think.

Joints and surfaces we work on

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

General trades versus a specialist

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.

Using site staff can make sense for a small touch-up, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

Warehouse floors and decks around Herne

With the shore within about 2 miles, Herne counts as a coastal location. Open joints in coastal car parks and yards let in salt-laden water as well as grit, so it pays to keep them sealed. The South East is one of the drier parts of the UK. External joints still wait for dry conditions, and winter de-icing salt on car parks and ramps works into any open joint.

For buildings at a park such as Eddington Business Park, which lies north-west of Herne, brick and panel movement joints are easy to forget until one leaks. Schools like Herne Church of England Infant School often have long brick elevations with movement joints that age quietly. Campuses like University of Kent (to the south-west of Herne) mix old and new buildings, with movement joints wherever they meet.

Herne is about 1 mile south of Herne Bay, in Kent. Commercial clients in Herne use us for work on floor joints, as part of our coverage of Kent. We work across 931 places in Kent. For work in that direction, see our London page, about 54 miles away.

Commercial sites across CT6 are covered. We cover commercial and managed buildings on St Martin's View, Ridley Close and Herne Street and the roads nearby. Close to Herne, our area also takes in Hunters Forstal (1 mile north-east), Eddington (1 mile north-west), Herne Common (1 mile south-west), Bullockstone (1 mile west) and Broomfield (1 mile north-east). A short drive away, we cover Canterbury (5 miles south-west), Margate (11 miles east), Ramsgate (12 miles east), Broadstairs (13 miles east), Whitstable (4 miles west) and Deal (15 miles south-east).

Near you in Herne

We work on buildings around Curtis Wood and Herne Bay High School. For rail, the closest station is Herne Bay station, about 1.2 miles north-west. Other landmarks nearby include Whitstable and Tankerton Hospital (3.7 miles west) and Tankerton Castle (4.4 miles west). Open spaces near Herne include West Blean and Thornden Woods.

Map of Herne © OpenStreetMap contributors

Why it’s worth doing now in Herne

Waiting for a site-wide shutdown often means the joints keep getting worse. Zone by zone, the worst aisles can be dealt with now and the remainder follows on a plan that suits you. For buildings in places like Herne, one well-planned visit beats several small ones, so it’s worth dealing with every failing joint at once.

No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.

What you get with us

  • A fixed quote before work starts
  • 12-month guarantee on workmanship
  • A Constructionline member, so easy to vet
  • Specification-led, product-correct work

See our cost guide or our accreditations and insurance.

Accreditations

Trusted. Accredited. Insured.