Expansion Joint Sealing in Cothill
Expansion and movement joint sealing in walls, decks and floors in Cothill. CHAS accredited and fully insured, with a 12-month guarantee.
- Hardened, cracked sealant on exposed facades
- Expansion joints split through the centre of the bead
- Previous reseals laid over old sealant
Expansion joint sealing in Cothill
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Expansion joint sealing in Cothill, done properly
Joint design counts for as much as the sealant itself. The joint has to be wide enough for the expected movement and the sealant’s movement capability, and depth is controlled using closed-cell backing rod, or bond-breaker tape in shallow joints. For wider joints, the width-to-depth ratio is often around 2:1, as the manufacturer advises, and the bead is tooled so it grips the two faces alone. We work on brickwork movement joints, precast concrete panel joints and car park decks and ramps, and the usual reasons a site gets in touch are arrises breaking up along floor joints and rain penetration at brick or block movement joints. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Cothill is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
Halls, schools and small commercial buildings near places like Cothill have movement joints in brick, block and concrete too. They’re easily forgotten until water gets in or an edge breaks.
Whoever the client is, the cover is the same: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.
- Where
- Cothill (OX13)
- Region
- Oxfordshire
- Cover
- 12 months on every job
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Aftercare for building managers
For the best life from the joints:
- Reopen bays and walkways only after the stated cure time
- Check joints after long freezing spells
- Raise snow-clearing blades over deck joints where possible
- Sweep decks, ramps and floors so grit doesn’t collect in the joints
Our workmanship on movement joints carries a 12-month guarantee. Record which product went into which joints in the building file, so the next reseal starts with the facts.
When one joint fails, others of the same age are rarely far behind. It pays to check every joint, not just the obvious one. We can suggest an order, worst joints first.
Why it’s worth doing now in Cothill
Closing a car park for a reseal is rarely an option. Phased work by bay or zone lets the rest stay in use. We agree phasing with you before work starts. Older rural buildings around Cothill 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.
The product called for affects the cost, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site requirements come into it too.
Why us?
- Matching to RAL references, product permitting
- Work to your specification and the manufacturer’s guidance
- A fixed quote before work starts
- One contact handling all your sites
Read how commercial sealant jobs are priced or our accreditations.
Site staff or a sealant specialist?
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.
More services for Cothill
Joints that move: notes for Cothill
Cothill sits in one of the drier corners of the country, the South East. Outside joints in yards and car parks still have to be dry before sealing, while winter salting gets into any joint left open. Cothill has at least three named business or industrial parks inside a 3-mile radius. Their warehouses, yards and car parks are exactly where joints take the most punishment.
Schools like Dry Sandford Primary School often have long brick elevations with movement joints that age quietly. Office parks like Wootton Business Park, 1.3 miles north of Cothill, have decks, ramps and clad elevations whose joints take movement every day. Sites like Abingdon Community Hospital (2 miles south-east of Cothill) carry ambulances, deliveries and visitors’ cars over their road and deck joints.
Cothill is about 2 miles north-west of Abingdon-on-Thames, in Oxfordshire. Any commercial site in Cothill is covered. Cothill is one of 423 places in Oxfordshire on our list for movement joints. We also cover Oxford, some 6 miles away.
We take on movement joints across the OX13 postcode area. Close to Cothill, our area also takes in Dry Sandford (1 mile north-east), Shippon (1 mile south-east), Frilford Heath (1 mile south-west), Tubney (2 miles west) and Marcham (2 miles south). Further afield, our area takes in Oxford (6 miles north-east), Didcot (7 miles south-east), Witney (10 miles north-west), Carterton (12 miles north-west), Wantage (8 miles south-west) and Grove (7 miles south-west).
Near you in Cothill
In Cothill, that means premises near Merry Miller pub and Larkmead School and the streets around them. Cothill’s nearest station is Radley station, roughly 3.9 miles east of the centre. Well-known places in the area include Abingdon Community Hospital (2 miles south-east) and FitzHarris Castle (2.4 miles south-east). The countryside around Cothill includes Cumnor Hill and Dry Sandford Pit.
Cost factors for movement joints
There’s no standard rate for sealant work, since sites vary so much. What we take into account:
- Whether the work must be split into stages
- The total length or number of joints
- Removal of failed or old sealant
- The product specified
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
What we need to price the job
For an accurate fixed quote, we need to understand the site. Useful things to include:
- Any dates the work must fit around
- The product your specification calls for
- The site address and postcode
- A wide shot and a close-up of the area
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to phone 01277 525 020 or email drawings and photos with what you know.
When it isn’t the sealant
Our job is the joint, not everything around it. On its own, sealant can’t deal with:
- A joint that has to be widened or re-detailed before it can work
- Waterproofing layers buried beneath the sealant
- Broken or spalled joint edges, which need repairing before any sealant goes in
If you are not sure, just speak to us on 01277 525 020 or email the details over and we will give you a straight answer before you book.
Surfaces 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
From enquiry to sign-off
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 the next one starts. If others near Cothill need work, visits can be combined. A fixed quote is given before anything starts.
- We start with photos, approximate lengths and any drawings, visiting where needed.
- 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.
- A sealant suited to the movement and traffic is laid to depth and tooled.
- Each area is handed back after its cure time, under our 12-month guarantee.
Getting the site ready
- Agree which areas must stay open
- For older buildings, check the asbestos register before work
- Tell us your opening times and when work is allowed
Get a fixed quote
Need a figure for a tender or a budget? We will quote against your scope and drawings you can plan around. For a chat about it beforehand, call 01277 525 020 or send details through our quote form.
Advice
Common questions from Cothill clients
Is Cothill too far out for you?
Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Is hospital work, at somewhere like Abingdon Community Hospital, something you do?
Yes. We work in healthcare settings as well as offices and schools. Each area is agreed with the ward or department and the estates team in advance.
Will you just go over the old sealant?
No. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
Are your applicators CSCS-carded?
Yes. If you need card details for site access, tell us and we’ll confirm them with the quote.
Does weather matter for sealant work?
It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
Do the joint edges need to be sound before sealing?
Sealant needs sound faces to bond to, so broken or crumbling edges have to be repaired first. We flag it at the quote stage where we can see it.
Can the building stay open while you work?
In most cases, yes. We phase the work so most of the building stays in use, with each area protected and signed.