Expansion and movement joint sealing in High Cross, West Sussex
Expansion joint sealing in High Cross, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Damp inside where a wall movement joint has failed
- Joints packed with grit and debris
- Torn sealant in brick or block movement joints
Expansion joint sealing for High Cross sites
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
About our expansion joint sealing in High Cross
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 and the seal across each one keeps out water and grit. Mastic Doctor reseals movement joints in brickwork, blockwork, concrete, cladding and floors on sites in High Cross. We work on precast concrete panel joints, blockwork control joints and podiums and floor movement joints, and the usual reasons a site gets in touch are water dripping through deck or ramp joints and hardened, cracked sealant on exposed facades. A single leaking joint is often how a building in High Cross first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.
For a site near High Cross, measurements and photos up front mean one trip where possible. Tell us the joint widths if you can, and what drives or walks over them.
What our 12-month guarantee covers is the way we did the job: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.
- Place
- High Cross (BN6)
- Region
- West Sussex
- Cover
- 12 months on every job
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
How a job runs
Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed, then reopened once the sealant allows before we move to the next. For a building around High Cross, tell us how to find it and who will meet us. Send that with the details and we’ll confirm the plan with the quote.
- The first job is to check each joint: how wide it is, how it moves and why the old seal let go.
- You get a fixed quote with the product and its movement capability stated.
- The failed seal is removed and both faces are cleaned until sound and dry.
- Backing rod goes in at the right depth, or bond-breaker tape where the joint is shallow.
- Primer goes on where the manufacturer specifies it, followed by the sealant, which is then tooled off.
- Finished joints are checked and backed by our 12-month guarantee.
Before we start on site
- Point out any areas we must not close
- Have the specification and drawings to hand
- Flag any permit to work we’ll need
Ask for a quote
For a fixed quote, ring 01277 525 020 or email the details over. You can also send details through our quote form.
Advice
Why act early in High Cross
Resealing is usually the answer, not replacing the element. If the material either side is sound, a properly prepared reseal restores the joint. If the edges have broken up, we’ll tell you they need repairing first. For buildings around smaller places like High Cross, water damage can go unnoticed for longer, especially where a building isn’t used daily, which gives a failed joint time to do damage. Resealing early avoids that.
The specified product makes a difference, and so does the preparation, from cutting out to priming and backing rod. Access, phasing and site rules also count.
Why us?
- A fixed quote before work starts
- Matching to RAL references, product permitting
- CHAS accredited
- Fully insured
See our cost guide and how we’re accredited.
Common problems we fix in High Cross
Sealant peeling cleanly off one side is an adhesion failure. Poor preparation, a skipped primer, or sealant bonded to the back of the joint are typical reasons.
Common reasons buildings call us in:
- Weathered movement joint sealant that no longer flexes
- Arrises breaking up along floor joints
- Layers of sealant in a movement joint
- Movement joints with split or torn sealant
For a school such as Albourne CofE Primary School, playground and building joints can be done in the holidays.
What to look for in a quote
- Who will actually carry out the work
- What level of public liability insurance do they hold?
- Will RAMS and insurance details be available?
- Is the sealant right for the movement and the substrate?
What sets the cost
Your fixed quote is built from the real scope. It allows for:
- Joint width, depth and condition
- Working within restricted access windows
- Whether old sealant has to be cut out first
- Travel to remote or island sites
Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.
What we need to price the job
To price the job accurately, we need to understand the site. Useful things to include:
- Whether the building will be occupied during the work
- Your programme or deadline
- The asbestos register, for older buildings
- Approximate linear metres or a joint schedule
Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, ring 01277 525 020 or email drawings and photos.
Questions we are asked in High Cross
Is Valley Farm Business Park, near High Cross, within your area?
Yes. We cover High Cross and the area around it, including industrial estates, business parks and retail parks such as Valley Farm Business Park. Send details of the unit and the work through our quote form for a quick quote.
Can you take on a job at a hospital such as The Dene Hospital?
Yes. Healthcare sites are among the places we work. Each area is agreed with the ward or department and the estates team in advance.
Do you work in High Cross?
Yes. High Cross is in our area. To discuss a job, ring 01277 525 020 or email a schedule or drawings.
What will the job cost?
Each job is quoted on its own details. To get one, ring 01277 525 020 or send details through our quote form.
What if the joint edges are damaged?
The edges have to be sound. If they’re damaged, we will say so before any sealing.
Does the weather affect joint sealing?
A wet joint can’t be sealed properly so we’d rather rearrange than seal in the rain. We agree a revised date with you.
What hours do you work?
We’re 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.
Expansion joint sealing in High Cross: the local picture
Rainfall across the South East, High Cross included, is lower than in many 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. The 3 miles around High Cross take in at least three named trading estates, business parks or retail parks. Sites like these are full of saw-cut floor joints, yard slabs and car park joints.
Business parks such as Valley Farm Business Park, 0.7 miles to the north-east of High Cross, have car parks, paved areas and long brick and panel elevations, all with movement joints. A healthcare site such as The Dene Hospital, 2.9 miles north-east of High Cross, depends on car parks, ramps and service yards whose joints take traffic all day.
High Cross is about 4 miles west of Burgess Hill, in West Sussex. We send applicators to High Cross for movement joints. 373 places across West Sussex fall within our area, High Cross among them. Brighton is covered too, around 9 miles from High Cross.
Business premises anywhere in BN6 are within our area for movement joints. Sites close to High Cross are covered too, including Albourne (1 mile south-east), Albourne Green (1 mile south-east), Albourne Street (1 mile south-east), Blackstone (1 mile south-west) and Twineham (2 miles north). Bigger towns within reach include Crawley (12 miles north), Horsham (10 miles north-west), Worthing (11 miles south-west), Haywards Heath (7 miles north-east), Burgess Hill (4 miles east) and Shoreham-by-Sea (8 miles south).
Around High Cross
The nearest railway station is Hassocks station, roughly 3.4 miles east. Other landmarks nearby include The Dene Hospital (2.9 miles north-east) and Clayton Castle (3.9 miles south-east). The countryside around High Cross includes Wolstonbury Hill and Woods Mill.
Work for main contractors and building owners
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.
As a CHAS accredited contractor and Constructionline member, we’re straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
Places near High Cross
What else we do in High Cross
What we can’t put right
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- Concrete or masonry repairs along the arrises
- A joint that has to be widened or re-detailed before it can work
- Mechanical expansion joint covers, cover plates or proprietary joint systems (a specialist supplier’s job)
If in doubt, speak to us on 01277 525 020 or use the quote form and we will say what we think before you book.
Where we work in High Cross
- Car park decks and ramps
- Cladding panel joints
- Precast concrete panel joints
- Podiums and floor movement joints
- Blockwork control joints
- Brickwork movement joints