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

Expansion and movement joint sealing in Dial Post, West Sussex

Commercial sealant work in Dial Post for contractors, FMs and building owners: expansion and movement joint sealing in walls, decks and floors, quoted at a fixed price.

  • Water getting into the wall through a failed joint
  • Sealant peeling off one face of the joint
  • Hardened, cracked sealant on exposed facades
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 accredited
Fully insured: £5m PL

Expansion joint sealing for Dial Post sites

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

What the job involves on each surface

Joints between different materials

Some mixed-material joints suit a hybrid sealant. We pick the product for the materials and the movement.

Cladding panel joints

Metal and composite panels shift considerably as temperatures change. The joints need a low-modulus sealant with enough movement capability.

How we handle expansion joint sealing in Dial Post

Buildings and slabs are never completely still: temperature, moisture, shrinkage and loading all make materials grow and shrink. Movement joints are where that movement is absorbed. Mastic Doctor reseals movement joints in brickwork, blockwork, concrete, cladding and floors on sites in Dial Post. Most enquiries involve brittle, chalky sealant on external joints and rain penetration at brick or block movement joints, across blockwork control joints, precast concrete panel joints and cladding panel joints. For commercial sealant work in Dial Post, you deal with one contact from quote to sign-off, whether it’s one building or several.

Around smaller places such as Dial Post, floor joints are often in barns and farm buildings turned into workshops, stores and offices. Joints in those slabs take vehicles, trolleys and foot traffic, and need a filler or sealant to match.

A 12-month guarantee applies to all our work in West Sussex. If an installation problem shows up, call 01277 525 020 or email the details over and we’ll arrange a return visit.

Location
Dial Post (RH13)
Wider area
West Sussex
Cover
A 12-month guarantee
Quote
Fixed quote, scope in writing
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Floors, slabs and movement joints in Dial Post

Dial Post lies roughly 39 miles out from central London. 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. Outside joints in yards and car parks still have to be dry before sealing, while winter salting gets into any joint left open.

Across sites such as Huffwood Trading Estate, which lies east of Dial Post, floor and movement joints can be sealed in phases so units keep working.

Dial Post is about 7 miles south of Horsham, in West Sussex. We cover Dial Post, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Dial Post is one of 373 places in West Sussex on our list. We also cover Brighton, around 13 miles from Dial Post.

If you need expansion joint sealing in RH13, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. If your site is on The Green, Swallows Lane and Bentons Lane or close by, we can quote for movement joints. Just outside Dial Post, we also work in Whitehall (2 miles north-west), Shipley (2 miles north), West Grinstead (2 miles north-east), Broomer's Corner (2 miles north-west) and Partridge Green (2 miles east). Bigger towns within reach include Crawley (13 miles north-east), Horsham (7 miles north), Worthing (10 miles south), Haywards Heath (12 miles east), Burgess Hill (10 miles east) and Littlehampton (13 miles south-west).

What’s near Dial Post

Open spaces near Dial Post include Knepp Wildland and Chanctonbury Hill.

Map of Dial Post © OpenStreetMap contributors

Our process

At the end of each section, we remove the tape, clean down and inspect every joint with your site contact. Where the sealant needs time to cure before use, we tell you and sign the area. Rural sites near Dial Post may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.

  1. We start with photographs, approximate lengths and any drawings, visiting where needed.
  2. We compare each joint’s width with the movement and the sealant’s capability.
  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. Each area is handed back after its cure time, under our 12-month guarantee.

Getting the site ready

  • Make sure the joints can be reached
  • Explain the parking and delivery arrangements
  • Send asbestos survey details if the building is pre-2000

Ask for a quote

Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.

Get a quick quote

Read more

When to call us in Dial Post

Sun, rain and frost age external movement joints. UV hardens the surface, and the sealant loses its ability to stretch, so it can’t follow the movement any more.

Things that typically lead to an enquiry:

  • New sealant over old, now failing
  • Sealant pulling off the joint face
  • Car park joints leaking onto vehicles below
  • Water getting into the wall through a failed joint

Business parks such as Pondtail Farm (Business Park) (to the north of Dial Post) have car parks, paved areas and long brick and panel elevations, all with movement joints.

Questions to ask before you book

  • Is the sealant right for the movement and the substrate?
  • Whether primer will be used where the manufacturer specifies it
  • The terms of the workmanship guarantee
  • Their public liability cover

Our contractor checklist

Should maintenance staff do it?

General builders and handymen seal joints, but it isn’t their main trade. 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.

Putting right a botched joint often costs more than sealing it well at the start, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

What sealant work can’t fix

A proper diagnosis includes knowing what sealant can’t do. We will tell you if the real problem is one of these:

  • Leaks coming from the membrane rather than the joint seal
  • Proprietary pre-formed expansion joint systems
  • Crumbling edges that would give a new bead nothing sound to grip

If in doubt, call 01277 525 020 or send photos by email and we will say what we think before you book.

Joints and surfaces we work on

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

Common questions from Dial Post clients

Is Dial Post too small for you to travel to?

Not at all. Dial Post is within our area. We cover Greater London and the counties of the South East. Good photos up front let us bring everything on the first visit.

Is Pondtail Farm (Business Park), near Dial Post, within your area?

Yes. Estates, retail parks and business parks around Dial Post, Pondtail Farm (Business Park) among them, are all within reach. To start, just call 01277 525 020 or email us with the unit, the joints involved and your access times.

What happens if it rains on the day?

Sealing onto a damp surface leads to adhesion failure, so external work waits for suitable conditions. We agree a revised date with you.

Do you need to see the site first?

It depends on the job. Simple work can often be priced from photographs, and bigger or more complex jobs usually get a visit.

Do you take on multi-site work?

Yes. We take on portfolio and planned maintenance work, with each site phased to suit its occupants.

How long do sealant joints last?

It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.

What guarantee do you give on joint sealing?

The workmanship is guaranteed for 12 months from sign-off, and we’re fully insured for public liability. Keeping joints clear of debris helps them last.

What happens if it’s left?

A like-for-like reseal of a joint that keeps splitting rarely lasts. If the joint is too narrow or the product wrong for the movement, it needs a different approach, and we will say so before quoting. Halls, stores and units around places like Dial Post may not be checked every day, which gives a failed joint time to do damage. Renewing joints in good time avoids the problem.

The work involved drives the cost: stripping out, preparation, sealing, access and phasing. Call for a fixed quote.

Why appoint us

  • Fully insured
  • Matching to RAL references, product permitting
  • CHAS accredited
  • One contact handling all your sites

See what affects the cost and how we’re accredited.

Accreditations

Trusted. Accredited. Insured.