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

Industrial and floor joint sealing in High Cross, East Sussex

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

  • Cracked and crumbling joint fill
  • Untidy open joints in a retail unit
  • Broken arrises where pallet trucks cross
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.
London, the South East & Scotland
CHAS accredited
£5m PL insurance

Floor joint sealing near High Cross

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Diagnose, treat, sign off

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. Smaller jobs around High Cross can be grouped with others nearby. You will have a fixed quote before work starts.

  1. First comes a walk of the floor to record joint sizes, broken edges and traffic routes.
  2. A fixed quote follows, listing the treatment for each area and the order of work.
  3. Each joint is cleared of old fill and dirt and taken back to clean, sound edges.
  4. Dust is extracted from the joint and primer applied where the manufacturer specifies it.
  5. The chosen product is placed to its specified depth and trimmed level with the floor.
  6. The area is handed back once it has cured enough to take traffic.

What we need from you

  • Confirm the product named in the specification
  • Share the asbestos register for older buildings
  • Tell us which areas need to stay in use

Request a quote

To get a fixed quote, call 01277 525 020 or use the quote form, telling us the site location and the nature of the job. Our quote form is another easy route.

Ask for a quote

Related advice

About our floor joint sealing in High Cross

A working floor can rarely be closed for days on end, so the work is split into zones and treated one area at a time. Share your site hours and access windows and the programme is built around them, with goods still moving in the areas we aren’t in. The enquiries we see most involve cracked and crumbling joint fill and unfilled floor joints collecting dirt and grit, across joints along racking aisles, loading bays and retail and showroom floors. Most enquiries from High Cross start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.

Smaller community and commercial buildings around High Cross have their own movement joints in walls and floors. They’re easily forgotten until water gets in or an edge breaks.

Every job is signed off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.

Place
High Cross (TN6)
Region
East Sussex
Cover
12 months on every job
Price
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Common questions from High Cross clients

Can you take on a job at a hospital such as Crowborough War Memorial Hospital?

Yes. We work in healthcare settings as well as offices and schools. We follow the site’s permits, sign-in and infection-control procedures in every area.

Is High Cross off your patch?

Not at all. High Cross is within our area. Our area covers London and the South East counties. Send photographs and a list of what needs doing, and we’ll plan the job to need as few trips as possible.

What about RAMS and site documents?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.

What guarantee do you give on joint filling?

A 12-month guarantee covers the work we do. It covers our workmanship, not later slab movement or damage from impacts.

Is colour matching possible?

That depends on the product specified. Some ranges are wide, others limited, so we will confirm the colours available for the specified product with the quote.

Is it fine to apply new sealant on top of old?

No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.

How long will the new sealant 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.

Owners, agents and contractors

We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Sites in High Cross can sit alongside others in a wider programme across East Sussex.

Agents, factors and owners’ representatives all follow the same route: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.

Why act early in High Cross

Not every joint needs stripping out completely. If old material is sound on one face and only a fine gap has opened, it may not all have to come out and the quote shows which approach suits each run. Older rural buildings around High Cross 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.

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

Why appoint us

  • Health and safety: CHAS accredited
  • Fully insured
  • One phone line for London, the South East and Scotland
  • 12 months’ guarantee on every job

Take a look at our cost guide or our accreditations.

Quoting for work in High Cross

Your fixed quote is built from the real scope. It takes account of:

  • How much existing material needs removing
  • Phasing around occupants
  • Access and working height
  • Quantities, in metres or numbers

Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.

Details that help us quote

Good information means a firmer quote. Helpful details to send:

  • Rough lengths or quantities, or drawings if you have them
  • The product your specification calls for
  • Asbestos survey details if the building is older
  • Whether the building will be occupied during the work

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or email drawings and photos.

Keeping the joints sound

Cleaning and maintenance staff play a part too. Pass these on to them:

  • Remind operators to lift rather than drag
  • Tell us about strong cleaning chemicals before we quote
  • Keep grit out of unfilled joints in the meantime
  • Start with the dock areas, where joints fail soonest

On younger slabs, a fine line can open down one side of a filled joint as the concrete keeps shrinking. That is common and is usually dealt with by topping up once the slab has settled down.

While the concrete edges are intact, it’s a filling job. Once they have broken away, edge repair comes first and that takes longer and closes areas for longer.

What we’re called out for in High Cross

Loading bay joints are exposed to wind, wet tyres and bigger temperature swings on top of the heaviest turning movements. That is usually where joint failure starts.

It’s worth sending us details if you spot any of the following:

  • A rough ride across broken joints
  • Broken arrises where pallet trucks cross
  • A gap opening alongside old joint filler
  • Soft sealant dragged out of trafficked joints

If you manage units on an estate such as Millbrook Industrial Estate, 1.6 miles to the north-west of High Cross, the floor joints under forklifts and pallet trucks and the slab joints in the yard are the ones to watch.

Before you book anyone

  • How long is the guarantee, and what does it include?
  • Their pre-qualification and accreditations
  • Their plan for phasing and protecting the area
  • How the existing material will be dealt with

How to choose a sealant contractor

Floor joint sealing around High Cross: points for this area

High Cross is about 35 miles from central London. Distribution warehouses and industrial estates are common around the motorway corridors that serve the capital. The South East is one of the drier parts of the UK. External slab and deck joints still need a dry, clean joint to seal, and where de-icing salt is spread in winter, open joints let it in.

Schools such as Rotherfield Primary School have movement joints in their walls and floors that are easy to overlook. Across sites such as Lexden Lodge Industrial Estate, 1.7 miles north-west of High Cross, floor and movement joints can be sealed in phases so units keep working.

High Cross is about 3 miles east of Crowborough, in East Sussex. Businesses, contractors and managing agents in High Cross use us for work on floor joints. High Cross is one of 308 places we cover in East Sussex for floor joints. Brighton is covered too, some 21 miles away.

Work on floor joints is covered throughout TN6, for business premises of every kind. You’ll find High Cross on or near the B2101. If your building is just outside High Cross, we cover Argos Hill (1 mile east), Rotherfield (1 mile north-west), Town Row (1 mile north), Woolbridge (1 mile south) and Wellbrook (2 miles south-east). Nearby towns on our patch include Lewes (15 miles south-west), Hailsham (12 miles south), Crowborough (3 miles west), Uckfield (7 miles south-west), Polegate (15 miles south) and South Malling (14 miles south-west).

Near you in High Cross

Recent enquiries here include premises near The King's Arms Public House, among other places. The nearest railway station is Crowborough station, roughly 1.8 miles west of the centre. Nearby you will also find Crowborough War Memorial Hospital (3.1 miles west). The countryside around High Cross includes Crowborough Country Park.

Map of High Cross © OpenStreetMap contributors
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