Expansion and movement joint sealing in St Lawrence, Isle of Wight
Work needed on a movement joint in St Lawrence? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Sealant peeling off one face of the joint
- Previous reseals laid over old sealant
- Expansion joints split through the centre of the bead
Need expansion joint sealing in St Lawrence?
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
When it isn’t the sealant
Sealant solves a lot, but not everything, and we’re upfront when that’s the case. It won’t fix:
- Leaks coming from the membrane rather than the joint seal
- Broken or spalled joint edges, which need repairing before any sealant goes in
- Structural movement beyond what the joints were designed for (that needs a structural engineer)
If you’re not sure, just speak to us on 01277 525 020 or use the quote form and we’ll give you a straight answer before you book.
What we seal
- Car park decks and ramps
- Blockwork control joints
- Podiums and floor movement joints
- Precast concrete panel joints
- Brickwork movement joints
- Cladding panel joints
Expansion joint sealing in St Lawrence, done properly
Joint design counts for as much as the sealant itself. Joint width must suit the movement and the movement class of the sealant while depth is limited by backing rod or, in shallow joints, a bond-breaker. For wider joints, many sealant makers recommend a width-to-depth ratio, often around 2:1, and the bead is tooled so it grips the two faces alone. Site teams most often ask us about new sealant over old, now failing and car park joints leaking onto vehicles below, across podiums and floor movement joints, cladding panel joints and car park decks and ramps. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in St Lawrence, preparation and product choice get the time they need.
Smaller community and commercial buildings around St Lawrence have their own movement joints in walls and floors. They tend to be overlooked until something leaks or cracks.
We sign every job off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.
- Place
- St Lawrence (PO38)
- Region
- Isle of Wight
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
What we are called out for in St Lawrence
When a bead pulls away from one face, it has lost adhesion. Poor preparation, a skipped primer, or sealant bonded to the back of the joint are typical reasons, and it’s common on joints sealed in a hurry.
These are often picked up first by site or facilities staff:
- Expansion joints split through the centre of the bead
- Water dripping through deck or ramp joints
- Joints where the bead has lost adhesion
- Rain penetration at brick or block movement joints
Hospital campuses such as Arthur Webster Memorial Hospital for Children, 4.1 miles north-east of St Lawrence, grow in stages, leaving movement joints wherever new blocks meet old.
Questions to ask before you book
- Which product they’ll use, and why it suits the joint
- Will CSCS-carded applicators be on site?
- What site paperwork they can supply
- Their plan for phasing and protecting the area
Aftercare for building managers
Your facilities or cleaning team can help the joints last. Pass these on to them:
- Raise snow-clearing blades over deck joints where possible
- Include every elevation and deck joint in periodic inspections
- Report split or peeling joint sealant early
- Check joints after long freezing spells
Floor joints on main traffic routes need watching more closely than the rest. Avoid standing heavy loads or racking legs on the joints, and report any chipped edges early.
An open joint fills with grit, and a joint full of grit can’t close. The arrises crack and break away under the load and the reseal becomes an edge repair as well. A sound seal keeps the joint working.
Our process
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each section is protected, cleaned back and sealed before the next one starts. Jobs in and around smaller places like St Lawrence are typically planned as a single visit, so we ask for photographs and rough sizes first. Then the right materials arrive with us.
- 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.
- We strip out the old seal and prepare the faces, flagging any broken edges that need repair before sealing.
- We control the depth with backing rod or, in shallow joints, bond-breaker tape.
- After any primer the maker requires, the bead is applied and tooled so it grips two sides only.
- Each joint is inspected and handed over with our 12-month guarantee.
Getting the site ready
- Send asbestos survey details if the building is pre-2000
- Send any specification or drawings in advance
- Tell us what induction or permit system the site runs
Quotes
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
Read more
Other services in St Lawrence
Quoting for work in St Lawrence
There’s no standard rate for sealant work, because every site is different. What we take into account:
- How accessible the joints are
- Distance, for remote addresses
- Which sealant the job calls for
- The total length or number of joints
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 and we’ll explain how it’s made up.
Details that help us quote
We can often quote from photos and a few details. It helps to include:
- Anything awkward about access or site hours
- When you need the work done
- Drawings or a marked-up plan, if available
- Photos of the joints, close up and from further back
For a fixed quote, call the office on 01277 525 020 or use the quote form, telling us the site location and the nature of the job. You can also send details through our quote form.
Traffic, movement and joints around St Lawrence
The sea is no more than about 1 mile from St Lawrence. Near the sea, external slabs, ramps and decks see salt air and driven rain as well as their usual loads, and edges left open tend to break up faster. Two named trading, business or retail sites lie within about 3 miles of St Lawrence. Sites like these are full of saw-cut floor joints, yard slabs and car park joints.
Another example is Wroxall Industrial Estate, which lies north of St Lawrence, where floors and yards would be done in stages around the occupiers. Schools like St Francis Catholic and Church of England Primary Academy often have long brick elevations with movement joints that age quietly.
St Lawrence is about 4 miles south-west of Shanklin, in the Isle of Wight. We send applicators to St Lawrence for movement joints. St Lawrence is one of 125 places in the Isle of Wight on our list. Our Portsmouth page has more on work in that area.
Anyone looking for expansion joint sealing in PO38 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Among the streets we cover are Twining Road, Whitwell Road and Woolverton Road. Just outside St Lawrence, we also work in Steephill (1 mile east), Nettlecombe (1 mile north-west), Whitwell (1 mile north-west), Ventnor (1 mile east) and Bierley (2 miles north-west). A short drive away, we cover Newport (8 miles north), Ryde (10 miles north), Cowes (12 miles north), Sandown (6 miles north-east), Shanklin (4 miles north-east) and East Cowes (12 miles north). Remote and island addresses take more planning, from travel and ferries to the weather, so mention the location when you call the office on 01277 525 020 or email the details over.
Around St Lawrence
We work on buildings around St Catherine's School. The nearest railway station is Shanklin station, about 4.1 miles north-east. Well-known places in the area include Arthur Webster Memorial Hospital for Children (4.1 miles north-east) and Longshoremans Museum (1.3 miles east). For a walk, there’s Stenbury Down.
Should maintenance staff do it?
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
Your questions answered
Does a coastal location like St Lawrence affect which sealant is used?
It can, yes: buildings near the sea take more wind-driven rain, and salt in the air nearer the shore. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.
Is St Lawrence too far out for you?
Not at all. St Lawrence is within our area. Our area covers London and the South East counties. We plan jobs in smaller places so return trips are kept to a minimum.
Do you offer coloured sealant?
That depends on the product specified. Some ranges offer many colours, others very few, so the available colours are confirmed with the quote.
What if the joint edges are damaged?
A bond is only as strong as the material behind it, so broken or crumbling edges have to be repaired first. We flag it at the quote stage where we can see it.
Which sealant will you use?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
Will you just go over the old sealant?
No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
When can you be on site?
Give us your site hours and any access windows in your enquiry, and we will plan around them. You can reach the office between 8am and 5pm, Monday to Friday.