Chidham expansion joint sealing
Commercial sealant work in Chidham for contractors, FMs and building owners: expansion and movement joint sealing in walls, decks and floors, quoted at a fixed price.
- Expansion joints split through the centre of the bead
- Damp inside where a wall movement joint has failed
- Brittle, chalky sealant on external joints
Need expansion joint sealing in Chidham?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Joints that move: notes for Chidham
Chidham lies within about 1 mile of the sea. External movement joints in car parks, ramps and yards near the coast take salt and wind-driven rain on top of traffic, so a failed joint lets more in and the edges break up sooner. 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, and winter de-icing salt on car parks and ramps works into any open joint.
For estates staff at a university like University of Chichester, 4.5 miles to the east of Chidham, building and paving joints are part of the planned maintenance list. Estates like Southfield Industrial Park. (1 mile east of Chidham) combine warehouse slabs, yards and loading bays, all with joints under wheels.
Chidham is about 4 miles west of Chichester, in West Sussex. If you’re looking for expansion joint sealing in Chidham, we can help. Our West Sussex coverage takes in 373 places. There’s a separate page for Portsmouth, roughly 9 miles from Chidham.
Anyone looking for expansion joint sealing in PO18 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. For a building on Chidham Lane, Harbour Way and Cot Lane or nearby, send details and we will quote for movement joints. If your building is just outside Chidham, we cover Nutbourne (1 mile north-west), Bosham (1 mile east), Broadbridge (1 mile east), Hambrook (1 mile north) and Bosham Hoe (2 miles south-east). Bigger towns within reach include Bognor Regis (9 miles east), Chichester (4 miles east), Selsey (8 miles south-east), Littlehampton (15 miles east), Portfield (5 miles east) and Yapton (12 miles east).
Around Chidham
Around Chidham, our work takes us to commercial buildings near Bourne Community College, among other places. The closest station to Chidham is Nutbourne station, about 1 mile north-west. A little further out are Warblington Castle (4.1 miles west) and St Richard's Hospital (4.6 miles east). Not far away are Nutborne Marshes and Stoke Down.
Expansion joint sealing in Chidham, done properly
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 Chidham. We work on precast concrete panel joints, podiums and floor movement joints and blockwork control joints, and the failures we’re asked to look at most are movement joints with split or torn sealant and new sealant over old, now failing. Looking for mastic applicators who cover Chidham? We’ve been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
For a site near Chidham, measurements and photographs up front mean one trip where possible. Tell us the joint widths if you can, and what drives or walks over them.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Where
- Chidham (PO18)
- Region
- West Sussex
- Guarantee
- A 12-month guarantee
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
What we’re called out for in Chidham
When the movement exceeds the sealant’s capability, the bead tears. Cohesive failure, a split through the centre, usually means the joint or product wasn’t right for the movement. The same product in the same joint tends to fail again unless width and product are reviewed.
Things that usually lead to an enquiry:
- Torn sealant in brick or block movement joints
- Chipped joint edges on forklift routes
- Weathered movement joint sealant that no longer flexes
- Sealant pulling off the joint face
At places like Broadbridge Business Centre (1.1 miles north-east of Chidham), joints are sealed a section at a time so operations carry on.
What your quote should include
- How they’ll work around occupants
- How joint depth will be controlled
- Do they follow the manufacturer’s priming guidance?
- What the guarantee covers, and for how long
Different surfaces, different methods
Concrete and precast panel joints
Precast and concrete panel joints move daily. We use a sealant classed for the movement, laid over backing to depth.
Internal floor movement joints
Floor joints include saw-cut joints and construction joints. Trafficked floor joints often get a semi-rigid filler, with a flexible sealant where movement is larger.
How the quote is worked out
To price the job, we consider:
- Site requirements such as inductions and permits
- Travel to remote or island sites
- The product specified
- How accessible the joints are
The product called for affects the cost, and so does the preparation. Access, phasing and site requirements come into it too.
Before you send an enquiry
There’s no need for a formal survey. These details are enough to start:
- Whether an asbestos survey exists
- What the building is and how it’s used
- How the joints are reached, and at what height
- When you need the work done
Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we’ll arrange a site visit if anything is unclear.
What we can’t put right
We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:
- Failed waterproofing membranes on podiums, roofs or decks (a waterproofing specialist’s job)
- A joint that has to be widened or re-detailed before it can work
- Crumbling edges that would give a new bead nothing sound to grip
If you are not sure, just give us a call on 01277 525 020 or use the quote form and we will give you a straight answer before you book.
What we seal
- Car park decks and ramps
- Precast concrete panel joints
- Blockwork control joints
- Brickwork movement joints
- Cladding panel joints
- Podiums and floor movement joints
General trades versus a specialist
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
On site: what to expect
Where the site stays busy, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed before we move to the next. Jobs in and around smaller places like Chidham are typically planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.
- Photos, joint lengths and drawings come to us, or we visit.
- We compare each joint’s width with the movement and the sealant’s capability.
- Every joint is cleared of the failed seal and any grit packed into it.
- Any broken arrises or friable edges are flagged before work goes further.
- The right sealant goes in at the right depth, bonded to the two sides only.
- Areas reopen once cured, and the work carries our 12-month guarantee.
Getting the site ready
- Agree which areas must stay open
- Send your site hours and access windows
- Flag any permit to work we’ll need
Request a quote
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, ring 01277 525 020 or use the quote form.
Related advice
Towns and villages near Chidham
Other services in Chidham
Your questions answered
Is Chidham too far out for you?
Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Good photos up front let us bring everything on the first visit.
Does a coastal location like Chidham affect which sealant is used?
It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.
What’s the quickest route to a quote?
It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photographs and a postcode.
Can you send site paperwork?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
Are you CHAS accredited and on Constructionline?
Yes. CHAS accredited, Constructionline member, and our applicators hold CSCS cards.
Are expansion joints and movement joints the same thing?
Put simply, it’s a planned break in a wall, slab or deck so the materials can move. Many people call it an expansion joint, and either way it needs a sound seal.
When is resealing likely to be due?
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.