Expansion and movement joint sealing in Clewer, Windsor and Maidenhead
Planning work on a movement joint in Clewer? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Layers of sealant in a movement joint
- Brittle, chalky sealant on external joints
- Water getting into the wall through a failed joint
Expansion joint sealing across Clewer
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Expansion joint sealing for commercial buildings in Clewer
Buildings and slabs are never completely still: temperature, moisture, shrinkage and loading all make materials grow and shrink. Expansion and movement joints are built in so the structure can move without cracking and the seal across each one keeps out water and grit. We seal and reseal movement joints in walls, panels, decks and floors. If you have damp inside where a wall movement joint has failed and chipped joint edges on forklift routes, we can help, on cladding panel joints, car park decks and ramps and brickwork movement joints alike. A single leaking joint is often how a building in Clewer first comes to us: we look at the rest while we’re there and tell you what we find.
In a smaller place such as Clewer, floor and movement joints are often in agricultural and rural business units, schools and the odd small industrial yard. Their slabs and walls still need movement joints that work.
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.
- Location
- Clewer (SL4)
- Region
- Windsor and Maidenhead
- Guarantee
- 12 months on our workmanship
- Quote
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Maintenance after handover
Once the work is signed off, these steps help:
- Keep racking legs and heavy point loads off floor joints
- Report split or peeling joint sealant early
- Keep stones and debris out of open joint lines
- Leave barriers in place until fresh joint sealant has cured
Every joint we seal is backed by a 12-month guarantee on workmanship. 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. Inspecting the whole run is worth the effort so you can prioritise and budget. We will tell you which movement joints need doing now and which can wait.
Other services in Clewer
Doing it in-house
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
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 easy to get wrong without experience.
From enquiry to sign-off
In a busy building, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then reopened once the sealant allows before the next one starts. If neighbouring businesses or buildings around Clewer need work too, visits can be combined. Tell us your site hours and we’ll plan around them.
- 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.
- Edges are checked, and we tell you if any need repairing before sealing.
- 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.
What we need from you
- Point out any areas we must not close
- Arrange parking or a loading space
- Tell us your opening times and when work is allowed
Ask for a quote
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to call the office on 01277 525 020 or email the details over.
Related advice
Questions we’re asked in Clewer
Is hospital work, at somewhere like King Edward VII Hospital, something you do?
Yes. We work in healthcare settings as well as offices and schools. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Is Clewer too far out for you?
Not at all. Clewer is within our area. We cover Greater London and the counties of the South East. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.
Are you CHAS accredited?
Yes. We’re CHAS accredited and a Constructionline member, which helps with supplier vetting.
Do you work to architects’ specifications?
Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it.
Is it fine to apply new sealant on top of old?
No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
Will you quote for a small job?
Small jobs are welcome alongside larger packages. Photos and a description are enough to start.
What about RAMS and site documents?
Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
Cost factors for movement joints
Sealant work doesn’t have a standard rate, because every site is different. What we take into account:
- Travel to remote or island sites
- Specialist products, such as fire-rated or hygienic sealants
- Whether old sealant has to be cut out first
- How accessible the joints are
There’s no price list, because the scope varies so much from one building to the next. For a fixed figure, call for a quote and we’ll price your job on its own details.
Details that help us quote
Diagnosis starts before we arrive. Let us know:
- The postcode of the building
- Rough lengths or quantities, or drawings if you have them
- Specification clauses that apply
- What the building is and how it’s used
Every quote starts with the facts: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
Traffic, movement and joints around Clewer
Clewer sits in one of the drier corners of the country, the South East. Even so, yard and car park joints are only sealed when they’re dry and clean, and winter de-icing salt on car parks and ramps works into any open joint. Less than 3 miles from Clewer there are at least three named estates and business parks. Sites like these are full of saw-cut floor joints, yard slabs and car park joints.
For estates staff at a university like Royal Holloway University, 4.9 miles to the south-east of Clewer, building and paving joints are part of the planned maintenance list. Another example is Portland Business Park, 2.1 miles to the east of Clewer, where floors and yards would be done in stages around the occupiers.
Clewer is about 1 mile north of Windsor, in Windsor and Maidenhead. We cover commercial sites throughout Clewer. Our Windsor and Maidenhead coverage takes in 60 places. For work in that direction, see our Reading page.
We cover the SL4 postcode districts. For a building on Oak Lane, Vale Road and Mill Lane or nearby, we can quote for movement joints. With the A308 and A332 nearby, Clewer is straightforward for us to reach. We also cover Windsor (1 mile south), Eton (1 mile north-east), Eton Wick (1 mile north-west), Boveney (1 mile west) and Dedworth (1 mile south-west) for movement joints. A short drive away, we cover Maidenhead (5 miles north-west), Boyn Hill (5 miles west), Cookham (7 miles north-west), Furze Platt (6 miles north-west), Broomhall (6 miles south) and South Ascot (6 miles south).
Landmarks near Clewer
Around Clewer, our work takes us to commercial buildings near The Windsor Boys' School, The Windsor Boys' School and The Vansittart Arms and the streets around them. The nearest railway station is Windsor & Eton Central station, about 0.7 miles east. A little further out are Museum of Antiquities (0.7 miles north-east) and King Edward VII Hospital (1 mile south-east). Open spaces near Clewer include Taplow Lake and Bray Pit.
Commercial clients in Clewer
Whether you’re a managing agent, a property factor or an owner’s representative: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.
Planned maintenance programmes are welcome: resealing failed joints building by building, on a schedule that suits your budget. Clewer can form part of a wider programme across Windsor and Maidenhead.
When to call us in Clewer
Most movement joint failures come down to the joint stretching further than the sealant can take. A joint that’s too narrow for the movement, or a product with the wrong movement class, will split through the middle. Resealing like for like often fails the same way unless width and product are reviewed.
Most enquiries start with something like this:
- Joints packed with grit and debris
- Damp inside where a wall movement joint has failed
- Weathered movement joint sealant that no longer flexes
- Joints where the bead has lost adhesion
Schools such as St Edward's Catholic First School have movement joints in their walls and floors that are easy to overlook.
What your quote should include
- What level of public liability insurance do they hold?
- Their pre-qualification and accreditations
- How the joint faces will be prepared and primed
- Whether their applicators hold CSCS cards