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

Expansion and movement joint sealing in East Dean, West Sussex

Planning work on a movement joint in East Dean? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Rain penetration at brick or block movement joints
  • Brittle, chalky sealant on external joints
  • Movement joints with split or torn sealant
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
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
CHAS & Constructionline
Fully insured: £5m PL

Expansion joint sealing in East Dean

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

Expansion joint sealing in East Dean, done properly

The seal is what lets a movement joint do its job. Once it fails, water, grit and debris get in. Resealing at the first signs of failure is far cheaper than repairing the material either side. If you are dealing with water dripping through deck or ramp joints and expansion joints split through the centre of the bead, we can put it right. Whether you call it commercial sealant work, mastic application or joint sealing, in East Dean it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Smaller community and commercial buildings around East Dean have their own movement joints in walls and floors. They tend to be overlooked until something leaks or cracks.

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.

The Mastic Doctor team standing beside their branded vans outside an office building
Place
East Dean (PO18)
Wider area
West Sussex
Guarantee
A 12-month guarantee
Quote
Quoted before any work starts
Telephone
01277 525 020
Page updated
3 November 2026

Floors, slabs and movement joints in East Dean

East Dean is in the South East, one of the UK’s drier regions. External joints still wait for dry conditions, while winter salting gets into any joint left open. East Dean is about 49 miles from central London. The roads out of London are lined with trade parks and distribution sheds.

Large sites such as Chichester Centre, 5 miles to the south-west of East Dean, have car parks, service roads and long elevations with movement joints in brick and panels.

East Dean is about 6 miles north-east of Chichester, in West Sussex. Commercial clients in East Dean use us for work on movement joints. We work across 373 places in West Sussex, from busy centres to rural villages. Sites around Portsmouth have their own page, roughly 17 miles from East Dean.

We take on movement joints across the PO18 postcode area, for business premises of every kind. Streets here include Main Road, Chapel Row and Charlton Road, and sites on any of them can send details for a fixed quote. We also cover Charlton (1 mile west), Singleton (2 miles west), West Dean (3 miles west), Heyshott (3 miles north) and Cocking (3 miles north-west) for movement joints. Further afield, our area takes in Worthing (15 miles south-east), Bognor Regis (8 miles south), Chichester (6 miles south-west), Selsey (13 miles south), Littlehampton (11 miles south-east) and Rustington (11 miles south-east).

Near you in East Dean

Around East Dean, our work takes us to commercial buildings near The Star And Garter Public House. Nearby you’ll also find Weald and Downland Gridshell (1.8 miles west) and Chichester Centre (5 miles south-west). Green spaces nearby include Graffham Common and Levin Down.

Map of East Dean © OpenStreetMap contributors

From enquiry to sign-off

Diagnose, treat, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. Rural sites near East Dean 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. We start with photographs, approximate lengths and any drawings, visiting where needed.
  2. Joint widths and expected movement are checked against what the sealant can take.
  3. Old sealant and debris are cut out of every joint.
  4. Any broken arrises or friable edges are flagged before work goes further.
  5. A sealant suited to the movement and traffic is laid to depth and tooled.
  6. Areas reopen once cured, and the work carries our 12-month guarantee.

Getting the site ready

  • For older buildings, check the asbestos register before work
  • Have the specification and drawings to hand
  • Warn occupants and staff about the work

Ask for a quote

Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, call 01277 525 020 or email a schedule or drawings.

Get a quick quote

Advice

Aftercare for building managers

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

  • Record the sealant used and the date in the O&M file
  • Brief car park operatives to protect joint lines during winter clearance
  • Inspect movement joints alongside other routine building checks
  • Leave barriers in place until fresh joint sealant has cured

Keep wheels, feet and water off new joints until the sealant has cured. The time varies with product, conditions and joint depth, and we confirm it for each area before we leave. Keeping the area coned off until then avoids tyre marks and damage.

When one joint fails, others of the same age are rarely far behind. It pays to check every joint, not just the obvious one. We will tell you which movement joints need doing now and which can wait.

East Dean: questions and answers

Can you work on a hospital site such as Chichester Centre?

Yes. Healthcare sites are among the places we work. Each area is agreed with the ward or department and the estates team in advance.

Will our site in East Dean have to close for joint sealing?

Rarely. Work is phased around your operations. We agree the sequence and timings with you before we start.

What do you charge?

We don’t publish prices, because every site is different. With photos or drawings, we can give you a fixed quote.

Is any job too small?

Single areas, one-off repairs and whole buildings are all quoted the same way: send details, get a fixed quote, we seal, guaranteed.

How long will the joint resealing take?

Allow anything from part of a day to a couple of weeks, depending on joint lengths, widths and access. Timings are set out in the quote along with the phasing plan.

Which product is best for expansion joints?

Movement capability matters most as set out in BS EN ISO 11600. Where two different materials meet, a hybrid sealant can be the better choice.

Can you fit around our working hours?

We are in the office from 8am until 5pm, Monday to Friday. Let us know your site hours and access windows, and the work will be planned around them.

Leave it or put it right?

Resealing is normally the answer, not replacing the element. If the material either side is sound, a properly prepared reseal restores the joint. We’ll flag where edges need repair before sealing. Converted and older buildings near places like East Dean tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.

A quote for movement joints depends on quantities, condition and access, and any specification that applies. Call for a quote.

Why choose Mastic Doctor in East Dean

  • Colours confirmed for the specified product
  • Constructionline member for supplier checks
  • Health and safety: CHAS accredited
  • Fully insured

See how commercial sealant jobs are priced and our accreditations and insurance.

Commercial clients in East Dean

Whether you are a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.

Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.

Common problems we fix in East Dean

With no backing rod or bond-breaker in place, sealant grips the base of the joint too. Bonded on three faces, it can’t stretch evenly when the joint opens.

What tends to prompt an enquiry:

  • Leaks through car park deck joints onto the level below
  • Debris jammed in movement joints
  • Sealant peeling off one face of the joint
  • Brittle, chalky sealant on external joints

For floors and slabs around East Dean, the product is chosen for the traffic and the movement at each joint.

Questions to ask before you book

  • Whether old or failed sealant will be cut out, not overlaid
  • Will RAMS and insurance details be available?
  • Their public liability cover
  • How joint depth will be controlled

How to choose a sealant contractor

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:

  • A joint that has to be widened or re-detailed before it can work
  • Leaks coming from the membrane rather than the joint seal
  • Damaged metal nosings or cover plates over a joint

Not sure which it is? You can ring 01277 525 020 or use the quote form and we will tell you honestly.

Where we work in East Dean

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

Trusted. Accredited. Insured.