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

Facade and window perimeter sealing in Lochboisdale, Na h-Eileanan Siar

Facade joint and window perimeter sealing on commercial buildings throughout Lochboisdale and nearby, by CSCS-carded applicators. Fully insured and CHAS accredited.

  • Gaps between rainscreen or cladding panels
  • Cold air coming in at window perimeters
  • Weathered facade joints that have lost their grip
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Backed by a 12-month workmanship guarantee.
South East, London & Scotland
Constructionline member
£5m PL insurance

Need facade sealing in Lochboisdale?

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

When something else is needed

Some faults sit outside our scope, and we say so rather than covering them up:

  • Providing access systems for the work
  • Damp caused by condensation inside the building
  • Cracked or spalling substrates that need repair before sealing

Not sure which it is? You can phone 01277 525 020 or email us and we’ll tell you honestly.

What we seal

  • Stone and brick facade joints
  • Window and door perimeters
  • Cladding panel joints
  • Coping and flashing joints
  • Perimeter joints where frames meet the structure
  • Shopfront frames

About our facade sealing in Lochboisdale

Managing agents and owners in Lochboisdale ask us to, we reseal perimeters across whole elevations or a handful of problem windows. The approach doesn’t change with the size: cut out, clean, back, prime where needed and seal. A 12-month guarantee applies to our workmanship. If you have discoloured or dirty facade joints and previous reseals run over old sealant, we can put it right, whatever the surface. Whoever orders the work in Lochboisdale, the brief is normally the same: a clear scope, tidy work and joints that don’t fail again.

Outside mastic in Scotland needs a dry, frost-clear joint, and in a place like Lochboisdale that means watching the forecast. A little flexibility in the programme lets external joints go in on suitable days.

Every job we finish is backed by a 12-month workmanship guarantee, wherever the site is. If our installation lets you down in that time, we return and fix it.

Where
Lochboisdale (HS8)
Region
Na h-Eileanan Siar
Guarantee
12 months on our workmanship
Quote
Fixed quote, scope in writing
Call
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Different surfaces, different methods

Cladding panel joints

Where panels are sealed rather than open-jointed, the bead is part of the weather line. We cut out failed joints along their full length and rebuild them to the correct depth.

Render and coated surfaces

Paintable sealants exist for joints that will be coated. The choice depends on the specification and finish.

Questions we are asked in Lochboisdale

Will you fit the mastic around our build programme in Lochboisdale?

Yes, we work to the programme and the sequence the site sets. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.

Do you work on the island where Lochboisdale is?

Yes, Lochboisdale is within the area we cover. We work across every Scottish council area. Island work is planned around ferry crossings and the weather, so photographs and a full list before we travel are essential.

Will you quote for a small job?

Small jobs are welcome alongside larger packages. Send details for a fixed quote.

Can you handle several sites?

Yes. Several buildings can share a single quote, with one point of contact.

What site paperwork can you supply?

Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.

Are your applicators CSCS-carded?

Yes. If you need card details for site access, let us know and we will send them with the quote.

Can you fit around our working hours?

We are in the office from 8am until 5pm, Monday to Friday. Let us know your site hours and access windows, and the work will be planned around them.

From enquiry to sign-off

On arrival, we sign in, go through any site induction and check how permits are handled. Floors, finishes and fittings next to the joints are covered before anything is cut or cleaned, and the work usually takes anything from a single day to several weeks, depending on joint lengths, access and the weather. For work around Lochboisdale, we aim for one trip, which is why we ask for photos and a full list first. Outside work also needs a suitable weather window.

  1. Access, site rules and timing are settled with the client up front.
  2. We only seal when joints are dry and within the product’s temperature range.
  3. We remove the old bead and check the edges are sound.
  4. Faces are cleaned, primed where needed and backed.
  5. Facade-grade sealant goes in and is tooled to a tidy concave profile.
  6. We hand over with our 12-month workmanship guarantee.

What we need from you

  • Let building users know which areas are affected
  • Point out any areas we must not close
  • Explain the parking and delivery arrangements

Quotes

A good quote starts with a clear picture: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we will fill any gaps with a visit.

Get a quick quote

Advice

Contractors’ notes for Lochboisdale

The sea is no more than about 1 mile from Lochboisdale. Schemes this close to the sea see their facade joints tested by wind and rain from the day they’re sealed, which puts weight on correct joint sizing, priming and a sealant suited to the exposure. Lochboisdale is on Scotland’s wetter western side. We keep internal mastic in hand so wet days aren’t lost.

Sites around Lochboisdale get mastic sealed to the drawings and the programme, nothing improvised.

Lochboisdale is in Na h-Eileanan Siar. If you’re looking for facade sealing in Lochboisdale, we can help. Across Na h-Eileanan Siar, 87 places are covered, Lochboisdale among them.

Postcode districts covered here: HS8. We cover commercial and managed buildings on Braehead, Calabhaigh and Kenneth Terrace. Close to Lochboisdale, our area also takes in 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). Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so mention the location when you phone 01277 525 020 or email a schedule or drawings.

Near you in Lochboisdale

Well-known places in the area include Calvay Castle (1.8 miles east). Open spaces near Lochboisdale include Beinn Ruigh Choinnich and Loch Stulaval.

Map of Lochboisdale © OpenStreetMap contributors

Cost factors for facade joints

The price varies from site to site. It mainly depends on:

  • Backing rod, priming and other preparation
  • Which sealant the job calls for
  • Whether the work must be split into stages
  • How accessible the joints are

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.

Details that help us quote

The more we know, the firmer the quote. When you get in touch, include:

  • Asbestos survey details if the building is older
  • Drawings or a marked-up plan, if available
  • The postcode of the building
  • A wide shot and a close-up of the area

Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we’ll return a fixed quote you can plan around. For a chat about it beforehand, call 01277 525 020 or email the details over.

Signs you need facade sealing in Lochboisdale

Sun, rain and temperature swings wear facade sealant down over the years. The bead hardens, chalks on the surface and loses the flexibility to follow the joint, then it splits or peels.

Look out for the following:

  • Cladding panel joints that have opened up
  • Draughts around frames and panels
  • Weathered facade joints that have lost their grip
  • Perimeter joints where frames meet the structure

Hotel extensions and refits, at places such as Lochboisdale Hotel, under half a mile north-east of Lochboisdale, normally run between busy periods, so the sealing is squeezed into short windows.

What to look for in a quote

  • Their pre-qualification and accreditations
  • Their approach to joint depth and backing
  • Whether their applicators hold CSCS cards
  • Will failed sealant be removed rather than covered?

How to choose a sealant contractor

Site staff or a sealant specialist?

A short, simple internal joint is often within reach of a maintenance team. The usual problems come from 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.

Accreditations

Trusted. Accredited. Insured.