The Mastic Doctor team standing beside their branded vans outside an office building
Na h-Eileanan Siar · Scotland

Lochboisdale expansion joint sealing

Expansion and movement joint sealing in walls, decks and floors throughout Lochboisdale and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Movement joints with split or torn sealant
  • Water dripping through deck or ramp joints
  • Sealant peeling off one face of the joint
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
CHAS & Constructionline
£5m public liability

Expansion joint sealing in Lochboisdale

Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.

Expansion joint sealing in Lochboisdale

Internal floor joints take trolleys, pallet trucks and forklifts. Without a sound filler, joint edges chip and spall under load. If the arrises are already broken, we will say so before sealing. We work on cladding panel joints, brickwork movement joints and podiums and floor movement joints, and what we are called in for most is arrises breaking up along floor joints and debris jammed in movement joints. Most enquiries from Lochboisdale start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.

For outside joints near Lochboisdale, the Scottish weather sets the timetable: sealant needs a dry joint and a temperature within its range. Inside slabs aren’t affected and can be scheduled around the occupier.

Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

The Mastic Doctor team standing beside their branded vans outside an office building
Where
Lochboisdale (HS8)
Wider area
Na h-Eileanan Siar
Cover
12 months on every job
Quote
A fixed quote before we start
Call
01277 525 020
Updated
3 November 2026

Diagnose, treat, sign off

Inspect, seal, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. For a building near Lochboisdale, directions, keys and a contact on the day are worth sorting early. That goes into the plan alongside the quote.

  1. First, the joints are inspected for width, movement and the type of failure.
  2. Next, we fix a price and confirm the sealant we propose for the movement.
  3. The failed seal is removed and both faces are cleaned until sound and dry, flagging any broken edges that need repair before sealing.
  4. Backing rod goes in at the right depth, or bond-breaker tape where the joint is shallow.
  5. Primer goes on where the manufacturer specifies it, followed by the sealant, which is then tooled off.
  6. Each joint is inspected and handed over with our 12-month guarantee.

Before we start on site

  • Send your site hours and access windows
  • Agree which areas must stay open
  • Send asbestos survey details if the building is pre-2000

Ask for a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, ring 01277 525 020 or email drawings and photos.

Ask for a quote

Related advice

Building owners, agents and FMs in Lochboisdale

Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.

Facilities managers want contractors who arrive with the paperwork sorted. Tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm with the quote.

Warehouse floors and decks around Lochboisdale

Lochboisdale sits close to the coast, within about 1 mile. 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. Being on an island, Lochboisdale means planning around ferry times as well as the weather. Send joint sizes and details of the traffic so the right materials come on the crossing.

In and around Lochboisdale, the right filler or sealant for each joint depends on the traffic and the movement it takes.

Lochboisdale is in Na h-Eileanan Siar. Across the HS8 postcode area, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. We work across 87 places in Na h-Eileanan Siar, from busy centres to rural villages.

Postcode districts covered here: HS8 for movement joints. Streets here include Braehead, Calabhaigh and Kenneth Terrace, and sites on any of them can send details for a fixed quote. Nearby places we also cover include Loch Baghasdail (1 mile north), Dalabrog (2 miles north-west), Rubha Ban (5 miles south), Eòlaigearraidh (9 miles south-west) and Cuidhir (12 miles south-west). Where a site is remote or on an island, we plan travel and materials carefully, so the full address helps from the start.

Near you in Lochboisdale

Other landmarks nearby include Calvay Castle (1.8 miles east). Open spaces near Lochboisdale include Beinn Ruigh Choinnich and Loch Stulaval.

Map of Lochboisdale © OpenStreetMap contributors

Why act early in Lochboisdale

A failed joint seal doesn’t mean the slab, panel or wall needs replacing. Where the edges are sound, cutting out and resealing is enough. If the edges have broken up, we’ll tell you they need repairing first. Renewing every failing joint on one visit is the sensible approach for a place like Lochboisdale. Photos of each area help us quote the whole job.

Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.

Why clients in Lochboisdale choose us

  • Our applicators hold CSCS cards
  • Products installed to the manufacturer’s instructions
  • A Constructionline member, so easy to vet
  • Matching to RAL references, product permitting

Take a look at how commercial sealant jobs are priced or our accreditations.

Common problems we fix in Lochboisdale

Sometimes the sealant holds but the substrate breaks away. If the edge of the joint is friable, the bond fails with it.

Clients normally get in touch after noticing something like this:

  • Previous reseals laid over old sealant
  • Torn sealant in brick or block movement joints
  • Weathered movement joint sealant that no longer flexes
  • Sealant pulling off the joint face

Around Lochboisdale, open joints collect water and debris, and the arrises are the next to go.

What to look for in a quote

  • Can the work be phased to keep areas open?
  • Whether their applicators hold CSCS cards
  • Do they follow the manufacturer’s priming guidance?
  • Proof of insurance

How to choose a sealant contractor

Surface by surface

Podium joints

Podium decks are exposed and often trafficked. We choose a product that copes with feet, wheels and weather.

Cladding panel joints

Metal and composite panels shift considerably as temperatures change. A sealant with the right movement class is chosen, and we’ll confirm the colours available for the specified product.

Common questions from Lochboisdale clients

Can you take on a job in Lochboisdale, on the island?

Yes. Islands are part of our area, Lochboisdale included. We plan island jobs around the ferry and the forecast, and bring everything the job needs on the first crossing.

Does a site in Lochboisdale have to shut while its joints are sealed?

Normally not: we work in sections and hand each one back once it has cured. Tell us which hours and entrances we can use and we will plan from there.

Is it fine to apply new sealant on top of old?

No. We cut the old material out and clean the joint back before sealing, since fresh sealant will not bond reliably to aged material.

Is movement joint sealing guaranteed?

A 12-month guarantee covers our workmanship, and we are fully insured for public liability. Regular sweeping and inspection help the joints last.

When can the area be used after sealing?

That comes down to the sealant and the temperature. Some take light use quickly, others need longer to cure, so we’ll confirm the curing time on the day.

How long will the new sealant last?

It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.

Can you follow the specification on our project?

Yes. Send it with your enquiry, and we will price the work to it.

What sealant work can’t fix

A proper diagnosis includes knowing what sealant can’t do. You will hear from us if the cause turns out to be one of these:

  • Proprietary pre-formed expansion joint systems
  • Leaks coming from the membrane rather than the joint seal
  • Changing the joint layout or spacing of a structure

If in doubt, call the office on 01277 525 020 or email a schedule or drawings and we’ll say what we think before you book.

What we seal

  • Car park decks and ramps
  • Brickwork movement joints
  • Precast concrete panel joints
  • Podiums and floor movement joints
  • Cladding panel joints
  • Blockwork control joints
Accreditations

Trusted. Accredited. Insured.