The Mastic Doctor team standing beside their branded vans outside an office building
Shetland Islands · Scotland

Facade Sealing in Exnaboe

Our CSCS-carded applicators take on facade joint and window perimeter sealing on commercial buildings in Exnaboe and the surrounding area. Send photographs or drawings for a fixed quote.

  • Failed seals around shopfront and entrance frames
  • Damp patches beside frames after rain
  • Unsightly perimeter sealant on a visible elevation
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS accredited
Fully insured: £5m PL

Facade sealing for Exnaboe sites

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

Facade sealing in Exnaboe, done properly

Every facade quote starts with how the joints will be reached. Let us know what access exists or is planned, and any site rules we need to work around, so the price covers the real job. We work on cladding panel joints, coping and flashing joints and shopfront frames, and the usual reasons a site gets in touch are weathered facade joints that have lost their grip and damp patches beside frames after rain. Whoever orders the work in Exnaboe, the brief is normally the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Construction around smaller Scottish places like Exnaboe is often one-off schemes: a school, a health centre, a hotel extension or a few houses. The mastic still needs to suit exposed elevations and Scottish weather.

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
Exnaboe (ZE3)
Wider area
Shetland Islands
Guarantee
12 months on every job
Price
Fixed quote, scope in writing
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

For managing agents and facilities managers

We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Exnaboe can form part of a wider programme.

If you look after buildings for someone else, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.

What we can’t put right

Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. It won’t fix:

  • Work on the window or framing system itself
  • Movement beyond what any sealant can handle
  • Water getting in through cracked render or porous masonry

If you are not sure, just call the office on 01277 525 020 or use the quote form and we will give you a straight answer.

Where we work in Exnaboe

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

Doing it in-house

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

There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.

Questions about Exnaboe

Is Exnaboe inside the area you cover, given it’s on an island?

Yes, Exnaboe is within the area we cover. We work across every Scottish council area. Ferry times and the weather set the plan, so we ask for photos and a full list first.

Does the sea air around Exnaboe change the choice of 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.

Do you seal facades in winter?

Year-round work is possible as long as joints are dry and temperatures suit the product. Frost and condensation on glass and steel are common on winter mornings, so we plan around the forecast.

Are you CHAS accredited and on Constructionline?

Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.

Will you check whether the sealant is causing the leak?

Yes. We check the sealant joints and report what we find. Where the cause seems to be elsewhere, we’d rather tell you than reseal pointlessly.

When can you be on site?

Mention the site’s hours and access windows in your enquiry, and we will plan around them. Our office runs Monday to Friday, 8am until 5pm.

How is access to upper-level joints handled?

That comes down to the access arranged for the job. Share what access exists or is planned when you send details, and we’ll agree the approach together.

On site: what to expect

We schedule the visit to fit the site hours and access windows you give us. While we’re working, the area stays contained and tidy, and your contact hears from us before we move to the next area. For a building near Exnaboe, directions, keys and a contact on the day are worth sorting early. We’ll confirm the plan with the fixed quote.

  1. We start with photos, drawings or a visit to see the joints and agree access.
  2. Product choice follows the joint’s movement and substrate.
  3. Failed beads are removed in full.
  4. Primer goes on where the product data asks for it.
  5. Backing rod is fitted and the new sealant gunned in and tooled.
  6. We go over the completed work with you before leaving.

Before we start on site

  • Clear stock, furniture or equipment away from the joints
  • Tell us what induction or permit system the site runs
  • Let building users know which areas are affected

Request a quote

For a fixed quote, phone 01277 525 020 or email the details over, telling us the site location and the nature of the job. You can also send details through our quote form.

Get a price

Related advice

What the job involves on each surface

Window and door perimeters

Window and door perimeters make up most facade sealing work. A low-modulus neutral-cure product, chosen for the frame and wall, goes in finished to throw water off the joint.

Cladding panel joints

Panel joints on cladding and rainscreen systems take movement every day. We use a product rated for the movement and suited to the panel surface.

Sites and facades in and around Exnaboe

With the shore within about 1 mile, Exnaboe counts as a coastal location. Coastal exposure means perimeter and cladding joints work harder than on an inland job, so joint design, primers and product choice deserve extra care. Work on Exnaboe has to fit the ferry timetable and the forecast. With drawings and the programme in hand, the whole mastic package comes with us.

For contractors building in or near Exnaboe, we seal to the drawings, the specification and the programme. Around Exnaboe, as anywhere, a facade joint depends on its sizing, backing rod and preparation.

Exnaboe is about 19 miles south of Lerwick, in the Shetland Islands. We cover commercial sites throughout Exnaboe, whether it’s a single job or part of a planned programme. Exnaboe is one of 63 places in the Shetland Islands on our list for facade joints.

We cover the ZE3 postcode districts. If your building is just outside Exnaboe, we cover Toab (1 mile west), Hestingott (1 mile west), Scatness (1 mile south), Boddam (2 miles north) and South Scousburgh (3 miles north). Remote and island addresses take more planning, from travel and ferries to the weather, so give the site location in your enquiry.

Around Exnaboe

Nearby you will also find Shetland Crofthouse Museum (1.6 miles north). The countryside around Exnaboe includes Loch of Huesbreck and Sumburgh Head RSPB reserve.

Map of Exnaboe © OpenStreetMap contributors

After the work

After handover, these steps help:

  • Investigate damp beside windows promptly
  • Share access with other external trades
  • Avoid harsh cleaners on facade sealant
  • Keep the sealant details on the building file

Look at perimeter and panel joints as part of routine building checks. Watch for splits, gaps at the edges, hardening and discolouration; record the locations.

Check older buildings for asbestos before disturbing old mastic. Older sealants can contain asbestos, and if it’s suspected, we stop until it has been tested.

Accreditations

Trusted. Accredited. Insured.