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

Expansion and movement joint sealing in Henhurst, Kent

Work needed on a movement joint in Henhurst? We look at it, seal it with the right product and hand it over with a 12-month guarantee.

  • Weathered movement joint sealant that no longer flexes
  • Spalled or broken joint edges in floors and decks
  • Water getting into the wall through a failed joint
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
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
CHAS accredited
£5m public liability

Expansion joint sealing for businesses in Henhurst

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

Expansion joint sealing in Henhurst, done properly

If you need expansion joint sealing in Henhurst, start with photos and joint lengths. We will come and look where photos don’t show enough. To discuss the joints first, call the office on 01277 525 020 or email a schedule or drawings. Most enquiries involve brittle, chalky sealant on external joints and rain penetration at brick or block movement joints, on cladding panel joints, podiums and floor movement joints and car park decks and ramps. For commercial sealant work in Henhurst, you deal with one contact from quote to sign-off, whether it’s one building or several.

In and around smaller places like Henhurst, the concrete floors we see are often in converted farm buildings, small workshops and storage units. Joints in those slabs take vehicles, trolleys and foot traffic, and need a filler or sealant to match.

The 12-month guarantee covers our workmanship: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Where
Henhurst (DA12)
Wider area
Kent
Guarantee
12 months on every job
Price
Quoted before any work starts
Phone
01277 525 020
Page updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Site staff or a sealant specialist?

Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.

On site: what to expect

Inspect, seal, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. For work around Henhurst, we aim to finish in one visit, so we ask for photos and rough sizes first. That way the right products come on the day.

  1. We look at the joints, their width and how they’ve failed.
  2. A fixed quote follows, naming the sealant and its movement class.
  3. We strip out the old seal and prepare the faces, flagging any broken edges that need repair before sealing.
  4. Backing rod goes in at the right depth, or bond-breaker tape where the joint is shallow.
  5. After any primer the maker requires, the bead is applied and tooled so it grips two sides only.
  6. Finished joints are checked and backed by our 12-month guarantee.

Preparing the site

  • Confirm the product named in the specification
  • Let us know about inductions and permits
  • Point out any areas we must not close

Quotes

For a fixed quote, ring 01277 525 020 or email a schedule or drawings. Our quote form is another easy route.

Get a quick quote

Advice

Warehouse floors and decks around Henhurst

At about 22 miles from central London, Henhurst is within reach of the capital. Distribution warehouses and industrial estates are common around the motorway corridors that serve the capital, and their floor joints take forklift and pallet-truck traffic all day. The South East is one of the drier parts of the UK. Even so, yard and car park joints are only sealed when they’re dry and clean, while winter salting gets into any joint left open.

On a site such as Lion Business Park, which lies north of Henhurst, the movement joints are in car park slabs, paving and building elevations. Schools such as Singlewell Primary School have movement joints in their walls and floors that are easy to overlook. Sites like Gravesham Community Hospital, 3 miles to the north of Henhurst, carry ambulances, deliveries and visitors’ cars over their road and deck joints.

Henhurst is about 2 miles south of Gravesend, in Kent. If you’re looking for expansion joint sealing in Henhurst, we can help. Across Kent, 931 places are covered, including Henhurst. Sites around London have their own page, roughly 22 miles from Henhurst.

We take on movement joints across the DA12 postcode area, whatever the building. Nearby places we also cover include Singlewell or Ifield (1 mile north-west), Istead Rise (1 mile west), Gravesend (2 miles north), Denton (2 miles north) and Northfleet Green (2 miles north-west) for movement joints. A short drive away, we cover Maidstone (11 miles south-east), Dartford (8 miles west), Sevenoaks (12 miles south-west), Tonbridge (15 miles south), Northfleet (3 miles north-west) and Swanley (9 miles west).

Local landmarks in Henhurst

We work on buildings around Jeskyns, The George Inn and Thamesview School. The nearest railway station is Sole Street station, roughly 1.3 miles south of the centre. A little further out are Gravesham Museum (2.8 miles north) and Gravesham Community Hospital (3 miles north). For a walk, there’s Sawyers Lake and Gad's Hill.

Map of Henhurst © OpenStreetMap contributors

Why act early in Henhurst

Leaving a failed movement joint rarely stays a small problem. Water and debris get in, the joint jams and the edges spall, so a reseal turns into an edge repair as well. Resealing early keeps the work to sealant. Older rural buildings around Henhurst move with the seasons, and rigid or tired sealant can’t keep up. A sealant with the right movement capability, correctly sized, lasts far better.

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.

Why choose Mastic Doctor in Henhurst

  • One phone line for London, the South East and Scotland
  • Fully insured
  • CHAS accredited
  • Matching to RAL references, product permitting

See what affects the cost and our accreditations and insurance.

What sealant work can’t fix

Not every problem is a sealant problem, and we are upfront when that’s the case. It won’t fix:

  • Waterproofing layers buried beneath the sealant
  • Proprietary pre-formed expansion joint systems
  • Cracking or settlement that calls for an engineer’s assessment

Not sure which it is? You can ring 01277 525 020 or email the details over and we will tell you honestly before you book.

Surfaces we seal

  • Precast concrete panel joints
  • Brickwork movement joints
  • Podiums and floor movement joints
  • Car park decks and ramps
  • Blockwork control joints
  • Cladding panel joints

Questions we are asked in Henhurst

Can you work on a hospital site such as Gravesham Community Hospital?

Yes. Healthcare sites are among the places we work. Work is phased so departments keep running, under the site’s own rules.

Is Lion Business Park, near Henhurst, within your area?

Yes. Our area takes in Henhurst and its surroundings, with estates and business parks such as Lion Business Park included. A few photos and the unit address let us price the work.

What happens if old sealant might contain asbestos?

The duty to manage asbestos sits with the building’s dutyholder, so we will ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.

How long do sealant joints last?

There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.

Are your applicators CSCS-carded?

Yes. Our applicators hold CSCS cards, as many construction sites ask for.

What’s the quickest route to a quote?

It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photographs and a postcode.

Is Henhurst in your area?

Yes. We take on work across Henhurst, with one number for every area we cover.

What the job involves on each surface

Cladding panel joints

We confirm what access is in place before pricing. Close-up photographs help us judge the joints or a site visit fills the gaps.

Internal floor movement joints

Wheeled traffic chips floor joint edges that aren’t supported. The right filler or sealant for the traffic and movement protects them flagging broken arrises before sealing.

Keeping the joints sound

Problems stay small when the joints are checked regularly. In particular:

  • Avoid parking heavy plant or pallets on joint lines
  • Clear dirt from joint lines during routine cleaning
  • Record the sealant used and the date in the O&M file
  • Leave barriers in place until fresh joint sealant has cured

Debris does more harm to joint sealant than most people realise. Grit trodden or driven into the joint works at the surface until it tears, especially on car park decks and warehouse floors. Regular sweeping keeps joint lines clear.

External wall joints that fail let rain into the masonry and cavity. The first sign is often a damp patch indoors. Catching it early keeps the water outside.

Accreditations

Trusted. Accredited. Insured.