The Mastic Doctor team standing beside their branded vans outside an office building
Argyll and Bute · Scotland

Facade and window perimeter sealing in Arrochar, Argyll and Bute

Facade joint and window perimeter sealing on commercial buildings in Arrochar. CHAS accredited and fully insured, with a 12-month guarantee.

  • Weathered facade joints that have lost their grip
  • Cold air coming in at window perimeters
  • Sealant pulling away from frames or panels
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS & Constructionline
£5m public liability

Need facade sealing in Arrochar?

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Should maintenance staff do it?

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong normally costs more in the end than doing them right.

How we handle facade sealing in Arrochar

Facade joints are the line of defence between the weather and the building fabric. Once a perimeter seal fails, water tracks in around frames and panels. We remove failed sealant and install a new bead chosen for the joint and how far it moves. If you are dealing with facade joints cracked through the middle and air leaks through failed facade joints, we can put it right, on perimeter joints where frames meet the structure, cladding panel joints and window and door perimeters alike. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Arrochar is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Sites near smaller places like Arrochar can mean longer travel, so the mastic is planned with as few trips as the job allows. Clear drawings, a programme and photographs let us bring the right sealants, primers and backing rod first time.

Work we carry out comes with a 12-month guarantee. Should something we installed fail, call 01277 525 020 or email drawings and photos and we’ll come back to it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Where
Arrochar (G83)
Wider area
Argyll and Bute
Guarantee
12 months on every job
Price
Quoted before any work starts
Telephone
01277 525 020
Updated
3 November 2026

Cost factors for facade joints

Sealant work doesn’t have a standard rate, because every site is different. What we take into account:

  • The site’s rules and procedures
  • How accessible the joints are
  • How much there is to seal
  • Whether old sealant has to be cut out first

Access can matter as much as the joints themselves: easy-to-reach joints are quicker than those that need equipment to get to. Mention the access as part of your enquiry.

What we need to price the job

Diagnosis starts before we arrive. Tell us:

  • When you need the work done
  • Whether an asbestos survey exists
  • Access details, including height
  • The product your specification calls for

Every job follows the same four steps: send details, get a quote, we seal, guaranteed. To take the first step, phone 01277 525 020 or email us.

Leave it or put it right?

Patch repairs over old sealant tend to come back. A full cut-out and fresh bead is the repair that holds and avoids repeat call-outs. Around smaller places like Arrochar, halls, stores and seasonal buildings may not be checked often, giving water time to get in. Resealing early avoids that.

What a job costs comes down to how many linear metres there are, how much old material needs removing and the access. Call for a fixed quote when you are ready.

Why appoint us

  • Colour agreed before work starts
  • Workmanship guaranteed for 12 months
  • Standard and matched colours in many product ranges
  • Joints cleaned back to sound surfaces

Read what affects the cost or our accreditations and insurance.

Different surfaces, different methods

Perimeter joints at frames and structure

Where framed systems such as shopfronts meet the building structure, there is a perimeter joint to seal. Our work is that perimeter joint.

Brick and stone facades

On masonry, the sealant has to suit a porous, textured surface. We avoid acetoxy silicone, which can stain some natural stone, and primers go on where specified.

Common questions from Arrochar clients

Can you keep pace with our programme in Arrochar?

Yes. Send the programme and drawings, and we will plan the mastic to suit the stages. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Our building in Arrochar is near the coast: does that change the sealant?

It can. Coastal exposure works external joints harder than inland weather. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.

What’s the quickest route to a quote?

It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photographs and a postcode.

Is the work guaranteed?

Yes. Workmanship is guaranteed for 12 months.

Do you install glazing systems?

No. We don’t install glazing systems, windows or glass. We seal the joints around them, including perimeters where frames meet the structure.

Will your applicators have CSCS cards?

Yes. Should the site need card details in advance, let us know and we will send them with the quote.

Can weather delay the job?

For external joints, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.

Facade sealing around Arrochar: how the place shapes the job

Arrochar lies within about 1 mile of the sea. Schemes this close to the sea see their facade joints tested by wind and rain from the day they’re sealed, so we check the specified product suits the exposure before the first bead. The west of Scotland, where Arrochar is, gets more rain than the east. External mastic dates are agreed with the site manager, with internal sealant kept ready for wet days.

For a contractor at a hotel such as Claymore Hotel, less than half a mile to the north-west of Arrochar, the mastic often has to be finished before a reopening date. On any site in or around Arrochar, the mastic follows the specification and the programme.

Arrochar (Gaelic: An t-Àrchar) is about 13 miles north of Helensburgh, in Argyll and Bute. If you are looking for facade sealing in Arrochar, we can help, as we do across Argyll and Bute. 124 places across Argyll and Bute fall within our area, including Arrochar. Sites around Glasgow have their own page, about 30 miles away.

We take on facade joints across the G83 postcode area, whatever the building. Among the streets we cover are Church Road, Beechwood and Macfarlane Drive, and sites on any of them can send details for a fixed quote. Close to Arrochar, our area also takes in Succoth (1 mile north), Tarbet (1 mile north-east), An Tairbeart (2 miles north-east), Lochgoilhead (6 miles west) and Ardlui (7 miles north). Nearby towns on our patch include Helensburgh (13 miles south), Rhu (12 miles south), Garelochhead (8 miles south), Inbhir Aora (13 miles west) and Inveraray (13 miles west).

Landmarks near Arrochar

Arrochar’s nearest station is Arrochar & Tarbet station, roughly 1 mile north-east. A little further out are Inveruglas Isle Castle (3.9 miles north). For a walk, there’s Loch Lomond.

Map of Arrochar © OpenStreetMap contributors

Looking after the joints

A few simple habits keep the new joints working:

  • Report water ingress at frames as soon as it shows
  • Inspect facade joints on a regular cycle
  • Record the product and colour used on each elevation
  • Check that rainwater leaves the facade the way it was designed to

Keep a note of which product went in and when. It helps when matching repairs or planning the next reseal.

Get the joint design right when resealing: the right width, backing rod and a sealant with enough movement capability. Repeating a faulty detail just repeats the failure.

Our process

We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Travel to smaller Scottish places like Arrochar is planned so the job is finished in one visit where possible, so photographs, sizes and a full list matter. External joints need a dry spell as well.

  1. First we review photographs, drawings or what we saw on a visit, and agree how each joint will be reached.
  2. Failed sealant is cut out along its full length.
  3. Joint faces are cleaned to firm, sound material, with primer where the sealant maker specifies it.
  4. Backing rod, or bond-breaker tape in shallow joints, limits the depth.
  5. A facade-grade sealant rated for the movement goes in, tooled to a concave profile.
  6. We walk the finished joints with you before handing over.

What we need from you

  • Share your working hours and any access restrictions
  • Make sure the joints can be reached
  • Tell us which areas need to stay in use

Get a fixed quote

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photos and a few notes.

Get a price

Advice

Accreditations

Trusted. Accredited. Insured.