An t-Ob expansion joint sealing
Commercial sealant work in An t-Ob for contractors, FMs and building owners: expansion and movement joint sealing in walls, decks and floors, quoted at a fixed price.
- Car park joints leaking onto vehicles below
- Water getting into the wall through a failed joint
- Joints packed with grit and debris
Expansion joint sealing for An t-Ob sites
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
How we handle expansion joint sealing in An t-Ob
Brickwork and blockwork walls have vertical movement joints at intervals. Once the seal fails, rain reaches the cavity and the joint can no longer close. The old seal is cut away, backing rod goes in at depth, and a low-modulus masonry sealant is gunned and tooled, primed where the manufacturer specifies. If you’re dealing with leaks through car park deck joints onto the level below and layers of sealant in a movement joint, we can put it right, on cladding panel joints, precast concrete panel joints and podiums and floor movement joints alike. Searching for sealant specialists in An t-Ob? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.
Around smaller Scottish places like An t-Ob, slabs needing attention are often in agricultural buildings, workshops, schools and hotels. Concrete slabs and yards there take vehicles and weather.
The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we’re clear about what is covered before work starts.
- Place
- An t-Ob (HS5)
- Region
- Na h-Eileanan Siar
- Guarantee
- 12 months on every job
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Page updated
- 3 November 2026
Your questions answered
Will our site in An t-Ob have to close for joint sealing?
Usually not: we work in sections and hand each one back once it has cured. The phasing plan comes with the quote.
Does the sea air around An t-Ob change the choice of sealant?
It can. Coastal exposure works external joints harder than inland weather. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.
Can weather delay the job?
It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.
What happens if it rains on the day?
Outside work depends on conditions because a damp or frozen joint won’t take a proper bond. Internal floor joints are far less affected.
What about RAMS and site documents?
Requirements differ from site to site, so list what you need, whether RAMS, insurance or CSCS details, and we will confirm with the quote.
How long before the joints can be used?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.
What guarantee do you give on joint sealing?
The workmanship is guaranteed for 12 months from sign-off, and we are fully insured for public liability. Keeping joints clear of debris helps them last.
Places near An t-Ob
Also in An t-Ob
What happens if it’s left?
A torn seal left alone normally gets worse. Grit and water fill the gap and the material either side breaks up. Resealing early keeps the work to sealant. In Scotland, wind-driven rain finds a failed joint quickly, and for a smaller place like An t-Ob, a repair visit takes planning, so it’s better to act early.
Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote, and you’ll have a fixed figure to work with.
What you get with us
- 12 months’ guarantee on every job
- Matching to RAL references, product permitting
- Colour agreed before work starts
- Sealing commercial buildings since 2005
Take a look at how commercial sealant jobs are priced or our accreditations.
Work for main contractors and building owners
For main contractors, we work as the sealant subcontractor. Programme, specification and site rules come first, and our applicators hold CSCS cards.
If you look after buildings for someone else, you need clear quotes and clear reporting. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative, plus a 12-month guarantee.
Signs you need expansion joint sealing in An t-Ob
Some joints were never sealed with the right product. Products not classed for the movement fail early. Movement capability is set out in BS EN ISO 11600, and specifications often refer to it.
Site and facilities staff are often the first to spot these:
- Rain penetration at brick or block movement joints
- Previous reseals laid over old sealant
- Sealant peeling off one face of the joint
- Water dripping through deck or ramp joints
In and around An t-Ob, the right filler or sealant for each joint depends on the traffic and the movement it takes.
Before you book anyone
- Will CSCS-carded applicators be on site?
- Will RAMS and insurance details be available?
- How long is the guarantee, and what does it include?
- Health and safety accreditation such as CHAS
Floors, slabs and movement joints in An t-Ob
The sea is no more than about 1 mile from An t-Ob. Open joints in coastal car parks and yards let in salt-laden water as well as grit, which is why split joints are worth sealing before the edges deteriorate. An t-Ob is in the west of Scotland, the wetter side of the country. External slab joints left open take plenty of rain. Outside joints are sealed in dry spells, so dates have some give.
A joint near An t-Ob that has lost its sealant lets in water and grit, and the edges suffer next.
An t-Ob is in Na h-Eileanan Siar. We cover An t-Ob, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. We work across 87 places in Na h-Eileanan Siar, from busy centres to rural villages.
Postcode districts covered here: HS5 for movement joints. For a building on Pier Road, Ferry Road and Strond Road or nearby, we can quote for movement joints. We also cover Leverburgh (1 mile south), Ruisgarry (7 miles south-west), Clachan Shannda (10 miles south-west), Direcleit (11 miles north-east) and Tarbert (12 miles north-east). As one of the bigger centres in Na h-Eileanan Siar, An t-Ob has a broad mix of commercial, public and industrial buildings. Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so give the site location in your enquiry.
Around An t-Ob
Nearby you will also find Seallam! Visitor Centre (2.3 miles north-west). Not far away are Loch Steisevat and Roineabhal.
What the job involves on each surface
Joints between different materials
Some mixed-material joints suit a hybrid sealant. We pick the product for the materials and the movement, and confirm it in the quote.
Internal floor movement joints
Floor joints include saw-cut joints and construction joints. Trafficked floor joints often get a semi-rigid filler and a flexible sealant where the joint moves more.
Our process
A typical day starts with protection: tape along each joint edge and covers over finishes, stock and equipment close by. On site, the work typically takes anything from part of a day to a couple of weeks, depending on joint lengths, widths and access, and we clear our waste as we work. For a building near An t-Ob, directions, keys and a contact on the day are worth sorting early. We’ll confirm the plan with the fixed quote.
- We start with photographs, approximate lengths and any drawings, visiting where needed.
- Joint widths and expected movement are checked against what the sealant can take 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
- Explain the parking and delivery arrangements
- Tell staff and tenants when we will be in
- Tell us your opening times and when work is allowed
Get a fixed quote
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. If you have questions first, phone 01277 525 020 or email the details over.
Related advice
Quoting for work in An t-Ob
These are the things that shape the price:
- Specialist products, such as fire-rated or hygienic sealants
- Access and working height
- Distance, for remote addresses
- Backing rod, priming and other preparation
Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
Details that help us quote
The more we know, the firmer the quote. When you get in touch, include:
- Anything awkward about access or site hours
- The type of building and who uses it
- Any specification or named product
- Whether an asbestos survey exists
The quickest route to a quote is a few photographs and the site postcode. Upload them with the quote form, or call 01277 525 020 or email a schedule or drawings to discuss it first.