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

South Malling expansion joint sealing

Work needed on a movement joint in South Malling? We assess it, carry out the work and guarantee our workmanship for 12 months.

  • Expansion joints split through the centre of the bead
  • Water getting into the wall through a failed joint
  • Sealant pulling off the joint face
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Expansion joint sealing in South Malling

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Expansion joint sealing in South Malling, done properly

For movement joints in South Malling, photos and approximate lengths are the best start. We’ll come and look where photos don’t show enough, then send a fixed quote that names the sealant. You can also phone 01277 525 020 or email a schedule or drawings to talk the joints through. Most enquiries involve hardened, cracked sealant on exposed facades and layers of sealant in a movement joint, across cladding panel joints, brickwork movement joints and podiums and floor movement joints. Facilities teams, main contractors and managing agents in South Malling tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Work in a smaller place like South Malling is usually one building at a time. That way the right materials come on the day and the job is done in one visit where possible.

Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.

Where
South Malling (BN7, BN8)
Wider area
East Sussex
Cover
12 months on our workmanship
Quote
Quoted before any work starts
Phone
01277 525 020
Updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

What sets the cost

Quotes vary with the job. Expect it to depend on:

  • Which sealant the job calls for
  • How accessible the joints are
  • Quantities, in metres or numbers
  • The site’s rules and procedures

What a job costs comes down to how many linear metres there are, what has to come out first and how the joints are reached. Call for a quote once you have the details.

Sending details for a quote

A few photographs plus some basic facts will normally do. It helps to include:

  • Your programme or deadline
  • Drawings or a marked-up plan, if available
  • The postcode of the building
  • Any specification or named product

Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to phone 01277 525 020 or email a schedule or drawings.

What we can’t put right

Honesty saves time and money. New sealant won’t cure:

  • Mechanical expansion joint covers, cover plates or proprietary joint systems (a specialist supplier’s job)
  • Cracking or settlement that calls for an engineer’s assessment
  • Failed waterproofing membranes on podiums, roofs or decks (a waterproofing specialist’s job)

If you are not sure, just call 01277 525 020 or email the details over and we will give you a straight answer before you book.

What we seal

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

Owners, agents and contractors

Main contractors use us as their sealant subcontractor on new-build and refurbishment projects. Programme, specification and site rules come first, and our applicators hold CSCS cards.

Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, and each stage is agreed with your contact.

Questions about South Malling

Is South Malling too small for you to travel to?

No. Small places get the same service as large ones. We cover Greater London and the counties of the South East. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

Would you work within a site like Lewes Victoria Hospital?

Yes. We work in healthcare settings as well as offices and schools. The estates team’s permit system and infection-control rules come first, and the work is planned around them.

How soon can the area be used again?

The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.

Do you seal on top of existing sealant?

No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.

Can staff carry on working while you’re here?

Normally, yes. Phased work can be planned so areas stay in use.

How long will the new sealant last?

There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

Why do our movement joints keep failing?

The way it has failed typically tells us why: a split through the middle points to over-stretching, while peeling from one face points to preparation or primer. Sometimes the edge material itself has failed.

Different surfaces, different methods

Podium joints

On podiums, the joint can belong to a larger waterproofing detail. We reseal the joint where sealant is the specified fix, and tell you if the problem looks like the waterproofing below.

Internal floor movement joints

Floor joints include saw-cut joints and construction joints. Trafficked floor joints often get a semi-rigid filler and a flexible sealant where the joint moves more.

Where floor joints take the most wear near South Malling

The South East is one of the drier parts of the UK. External joints still wait for dry conditions, while winter salting gets into any joint left open. At least three named trading, business or retail sites lie within about 3 miles of South Malling. Sites like these are full of saw-cut floor joints, yard slabs and car park joints.

Sites like Lewes Victoria Hospital (0.8 miles south-west of South Malling) carry ambulances, deliveries and visitors’ cars over their road and deck joints. Campuses like University of Sussex, 4.4 miles to the west of South Malling, mix old and new buildings, with movement joints wherever they meet. Another example is Phoenix Industrial Estate (less than half a mile south of South Malling), where floors and yards would be done in stages around the occupiers.

South Malling is about 1 mile north-east of Lewes, in East Sussex. We cover commercial sites throughout South Malling, whether it’s a single job or part of a planned programme. Our East Sussex coverage takes in 308 places, large and small. Sites around Brighton have their own page, about 7 miles away.

We take on movement joints across the BN7 and BN8 postcode area, for business premises of every kind. Among the streets we cover are Lee Road, New Road and Mill Road, and sites on any of them can send details for a fixed quote. With the A26 and A2029 nearby, South Malling is straightforward for us to reach. Just outside South Malling, we also work in Lewes (1 mile south-west), Cliffe (1 mile south-east), Southover (1 mile south), Hamsey (1 mile north) and Offham (1 mile north-west). Further afield, our area takes in Eastbourne (14 miles south-east), Seaford (8 miles south-east), Hailsham (11 miles east), Crowborough (14 miles north-east), Uckfield (7 miles north-east) and Newhaven (6 miles south).

Near you in South Malling

We work on buildings around Elephant and Castle pub, Priory School and Railway Land. The nearest railway station is Lewes station, about 0.7 miles south of the centre. A little further out are Lewes Victoria Hospital (0.8 miles south-west) and Lewes Castle (0.5 miles south-west). Not far away are Malling Down and Cliffe Hill.

Map of South Malling © OpenStreetMap contributors

Our process

The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. For a site in South Malling, we plan so the whole job is done in one go where possible. Clear photographs and measurements help us bring the right products.

  1. First, the joints are inspected for width, movement and the type of failure.
  2. Next, we fix a price and confirm the sealant we propose for the movement.
  3. The failed seal is removed and both faces are cleaned until sound and dry.
  4. We control the depth with backing rod or, in shallow joints, bond-breaker tape.
  5. After any primer the maker requires, the bead is applied and tooled so it grips two sides only.
  6. Each joint is inspected and handed over with our 12-month guarantee.

Before we start on site

  • Send your site hours and access windows
  • Tell staff and tenants when we’ll be in
  • Point out any areas we must not close

Get a fixed quote

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.

Get a price

Advice

After the work

Regular inspection catches problems early. In particular:

  • Clear dirt from joint lines during routine cleaning
  • Record the sealant used and the date in the O&M file
  • Inspect movement joints alongside other routine building checks
  • Check joints after long freezing spells

Add every elevation, deck and floor joint to your inspection round. Early splits and edges starting to lift show up on a routine check. Should you spot a problem, you can call 01277 525 020 or email drawings and photos and send a picture.

An open joint fills with grit, and a joint full of grit can’t close. The arrises crack and break away under the load. A sound seal keeps the joint working.

Accreditations

Trusted. Accredited. Insured.