Merston expansion joint sealing
Expansion and movement joint sealing in walls, decks and floors in Merston. CHAS accredited and fully insured, with a 12-month guarantee.
- Chipped joint edges on forklift routes
- Leaks through car park deck joints onto the level below
- Rain penetration at brick or block movement joints
Need expansion joint sealing in Merston?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Do you need expansion joint sealing in Merston?
With no backing rod or bond-breaker in place, sealant grips the base of the joint too. Bonded on three faces, it can’t stretch evenly when the joint opens.
What tends to prompt an enquiry:
- Chipped joint edges on forklift routes
- Brittle, chalky sealant on external joints
- New sealant over old, now failing
- Joints packed with grit and debris
In a school such as North Mundham Primary School, movement joints in brick, block and hall floors tend to be forgotten until they leak.
Questions to ask before you book
- Do they follow the manufacturer’s priming guidance?
- How long is the guarantee, and what does it include?
- Which product they’ll use, and why it suits the joint
- How they’ll work around occupants
Expansion joint sealing for commercial buildings in Merston
We cover the full range of movement joints: brickwork and blockwork joints, precast and cladding panel joints, concrete joints, car park decks and ramps, podiums and floor movement joints. The product depends on the movement, the weather and anything that runs over it, and we’ll confirm the choice in the quote. We work on precast concrete panel joints, blockwork control joints and brickwork movement joints, and what we’re called in for most is rain penetration at brick or block movement joints and new sealant over old, now failing. Most enquiries from Merston start with one failed joint and grow into a wider look at the building: we look at the rest while we’re there and tell you what we find.
In and around smaller places like Merston, the concrete floors we see are often in converted farm buildings, small workshops and storage units. Joints in those slabs take vehicles, trolleys and foot traffic, and need a filler or sealant to match.
We stand by our work with a 12-month guarantee. It covers how we prepared and applied the sealant.
- Where
- Merston (PO20)
- Region
- West Sussex
- Guarantee
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Your questions answered
Is hospital work, at somewhere like St Richard's Hospital, something you do?
Yes. Healthcare sites are among the places we work. Work is phased so departments keep running, under the site’s own rules.
Is Merston too far out for you?
No. Places such as Merston are covered as much as the big towns. London and every South East county are within our area. Good photographs up front let us bring everything on the first visit.
Can you seal car park deck joints?
Yes. Tyre loads, grit and de-icing salts make these some of the hardest joints to keep sealed, and we will tell you if any edges need repairing first.
Is movement joint sealing guaranteed?
Each job is backed by a 12-month guarantee on the workmanship. The guarantee covers how we sealed, not damage caused afterwards.
When is resealing likely to be due?
Nobody can honestly give a figure in years, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.
Do you need to see the site first?
Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we will arrange a visit before quoting.
Can you follow the specification on our project?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.
Diagnose, treat, sign off
Occupied buildings need a little choreography. The work area is signed and kept contained, keep walkways clear and work section by section so the rest of the building stays in use. For work around Merston, we aim to finish in one visit, so photos and measurements up front really help. Then the right materials arrive with us.
- 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 and tell you if the design looks wrong for the movement.
- 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.
Preparing the site
- Send any specification or drawings in advance
- Share your working hours and any access restrictions
- Make sure the joints can be reached
Getting a fixed quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photos and a few notes.
Related advice
Nearby places to Merston
Also in Merston
Why it’s worth doing now in Merston
Sealing over a failed movement joint is a common shortcut. A bead over the old seal can’t bond or flex and soon lets go. Full removal and preparation is in every quote. One visit to deal with every failing joint makes more sense than several trips to a place like Merston. Photos of every joint help us quote for the whole job.
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 we will put a fixed figure on it.
Why clients in Merston choose us
- A fixed quote before work starts
- Workmanship guaranteed for 12 months
- Old sealant cut out, never sealed over
- Work to your specification and the manufacturer’s guidance
Where floor joints take the most wear near Merston
Merston lies roughly 54 miles out from central London. Warehousing clusters around the motorways that ring and radiate from London. Rainfall across the South East, Merston included, is lower than in many 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.
Business parks such as Littlemeads Business Centre (1.4 miles north of Merston) have car parks, paved areas and long brick and panel elevations, all with movement joints. A healthcare site such as St Richard's Hospital, 2.3 miles north-west of Merston, depends on car parks, ramps and service yards whose joints take traffic all day.
Merston is about 3 miles south-east of Chichester, in West Sussex. Looking for expansion joint sealing in Merston? We can help, as we do across West Sussex. Merston is one of 373 places we cover in West Sussex for movement joints. For work in that direction, see our Portsmouth page.
Business premises anywhere in PO20 are within our area. Just outside Merston, we also work in Runcton (1 mile south-west), Colworth (1 mile east), Oving (1 mile north), North Mundham (1 mile west) and Lagness (1 mile south). A short drive away, we cover Worthing (15 miles east), Bognor Regis (3 miles south-east), Chichester (3 miles north-west), Selsey (6 miles south), Littlehampton (9 miles east) and Rustington (10 miles east).
Near you in Merston
In Merston, that means premises near Chichester High School For Girls, among other places. The nearest railway station is Chichester station, roughly 2.3 miles west of the centre. Other landmarks nearby include The Chichester City Museum (2.3 miles north-west) and St Richard's Hospital (2.3 miles north-west).
Aftercare for building managers
After handover, these steps help:
- Brief car park operatives to protect joint lines during winter clearance
- Inspect exposed joints once the cold weather has passed
- Keep stones and debris out of open joint lines
- Include every elevation and deck joint in periodic inspections
Keep wheels, feet and water off new joints until the sealant has cured. How long that takes depends on the product, the temperature and the depth of the joint. Keeping the area coned off until then avoids tyre marks and damage.
A failed deck joint lets water straight through to the level below. That water often carries de-icing salts with it and it can affect the structure over time. Resealing early limits the damage.
What we can’t put right
Some faults sit outside our scope, and we point that out rather than sealing over them:
- Movement on a scale no sealant is meant to absorb
- Leaks coming from the membrane rather than the joint seal
- A joint that has to be widened or re-detailed before it can work
If you are not sure, just give us a call on 01277 525 020 or email us and we will give you a straight answer.
What we seal
- Blockwork control joints
- Brickwork movement joints
- Precast concrete panel joints
- Podiums and floor movement joints
- Car park decks and ramps
- Cladding panel joints
Surface by surface
Internal floor movement joints
Wheeled traffic chips floor joint edges that aren’t supported. The right filler or sealant for the traffic and movement protects them.
Car park decks and ramps
Water coming through deck joints is the usual first sign. We strip the old seal, prepare the edges and seal again flagging broken edges along the way.