
Construction and new-build mastic in Sandwick, Shetland Islands
Our CSCS-carded applicators take on mastic packages for new-build and refurbishment projects in Sandwick and the surrounding area. Send photographs or drawings for a fixed quote.
- External joints sealed in damp or cold conditions that are now failing
- Inconsistent sealant finishes from plot to plot
- Internal caulk splitting as the building dries out
Need construction mastic in Sandwick?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Sites and facades in and around Sandwick
Sandwick lies within about 1 mile of the sea. Coastal exposure means perimeter and cladding joints work harder than on an inland job, which puts weight on correct joint sizing, priming and a sealant suited to the exposure. Sandwick is in the east of Scotland, which is drier than the west. Frosty spells still affect external mastic dates. We agree external dates with the site team and keep internal work ready.
Around Sandwick, as anywhere, a facade joint depends on its sizing, backing rod and preparation. On any site in or around Sandwick, the mastic follows the specification and the programme.
Sandwick is in the Shetland Islands. Any commercial site in Sandwick is covered, whether it’s a single job or part of a planned programme. We work across 63 places in the Shetland Islands, large and small.
We cover the ZE2 postcode districts for mastic packages. Buildings on Central Park, Parklands and Aestbrek are within our area for mastic packages. If your building is just outside Sandwick, we cover Hoswick (1 mile west), Mail (2 miles north), Levenwick (2 miles south-west), Bremirehoull (3 miles north) and Bigton (3 miles south-west). Further afield, our area takes in Lerwick (11 miles north), Sound (10 miles north) and Scalloway (10 miles north). As one of the bigger centres in the Shetland Islands, Sandwick has a broad mix of commercial, public and industrial buildings. For island and remote sites, travel and materials need planning ahead.
Near you in Sandwick
Not far away are Loch of Vatsetter.
How we handle construction mastic in Sandwick
A typical mastic package covers more than window perimeters: frame perimeters inside and out, caulking to trims and boards where the specification calls for it, sanitary silicone, kitchens, and the final snag list. Splitting those between trades often leaves gaps in responsibility. Site teams most often ask us about missed perimeter joints on a new elevation and sanitary sealant damaged by following trades, on window and door perimeters, cladding and panel joints and internal decorators’ caulk. Looking for mastic applicators who cover Sandwick? We have been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
Outside mastic in Scotland needs a dry, frost-clear joint, and in a place like Sandwick that means watching the forecast. A little flexibility in the programme lets external joints go in on suitable days.
We stand by our work: 12 months, guaranteed. That covers our preparation and application.
- Place
- Sandwick (ZE2)
- Region
- Shetland Islands
- Guarantee
- 12 months on every job
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026

Looking after the joints
Problems stay small when the joints are checked regularly. Specifically:
- Share drawings and the specification as soon as possible
- Brief the final clean team to avoid blades near sealant
- Don’t force external sealing on a damp or frosty day
- Protect sealed areas from following trades
A new structure shifts as it loses construction moisture. Flexible sealants in the right joints handle normal movement, but caulk in a joint that moves more than expected may crack. We can advise if a joint needs a different product.
External joints sealed in poor weather are a common cause of early failure. Holding off until conditions suit avoids callbacks so external sequencing builds in some flexibility.
Surface by surface
Window and door perimeters
A frame gap that’s too wide can’t just be filled with sealant. Gaps outside the product’s range are raised with the site team.
Internal decorators’ caulk
Caulking is often done in a hurry by whoever’s on site. A neat, consistent caulk line makes the decorators’ job quicker and reduces snags.
Owners, agents and contractors
Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, with each stage agreed with your site contact.
We work for building owners and managing agents on everything from one building to a spread of sites around Sandwick. One quote can cover more than one site, which keeps the paperwork simple.
Our process
We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. For a building near Sandwick, directions, keys and a contact on the day are worth sorting early. We’ll confirm the plan with the fixed quote.
- Drawings, the sealant specification and your programme come to us for pricing.
- We return a fixed quote that ties the mastic package to your programme.
- You tell us what site paperwork you need, such as RAMS, an insurance certificate or CSCS details, and we confirm it with the quote.
- We seal each plot or floor as it’s released to us.
- Each joint is prepared, backed to depth and sealed in the product the specification names.
- We close out snagging and hand over with a 12-month guarantee.
Preparing the site
- Tell us what induction or permit system the site runs
- Share the asbestos register for older buildings
- Explain the parking and delivery arrangements
Get a fixed quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.
Advice
Nearby places to Sandwick
More services for Sandwick
What affects the price in Sandwick
We price every job individually. The main factors are:
- The total length or number of joints
- The site’s rules and procedures
- Phasing around occupants
- How accessible the joints are
Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well, along with the time of year for external work.
What to include in your enquiry
The more we know, the firmer the quote. Helpful details to send:
- Any dates the work must fit around
- Specification clauses that apply
- The site address and postcode
- Photos of the joints, close up and from further back
For a fixed quote, call 01277 525 020 or email the details over. You can also send details through our quote form.
What we can’t put right
Some faults sit outside our scope, and we say so rather than covering them up:
- Faulty frames rather than failed sealant
- Approving fire stopping as compliant
- Damage to finishes by other trades after we’ve sealed
Not sure which it is? You can speak to us on 01277 525 020 or send details through our quote form and we will tell you honestly.
What we seal
- Brick and block movement joints
- Sanitary and kitchen joints
- Cladding and panel joints
- Window and door perimeters
- Internal decorators’ caulk
- Floor and skirting junctions
FAQs: Sandwick
Is Sandwick inside the area you cover, given it’s on an island?
Yes. Islands are part of our area, Sandwick included. Island work is planned around ferry crossings and the weather, so photographs and a full list before we travel are essential.
Does a coastal location like Sandwick affect which sealant is used?
It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.
Can you fit around our programme?
We seal plot by plot or floor by floor as areas are released. The sequence is settled with your site team and updated as the programme moves.
What do you charge?
It depends on the job: quantities, access, the product and any phasing. Call for a quote.
What does a mastic package typically include?
Inside and out: frame perimeters, movement joints, caulk where called for, sanitary and kitchens, all priced as one package.
Are you insured?
Yes. Mastic Doctor is fully insured, public liability included.
Can you send site paperwork?
Let us know which documents the site needs, such as RAMS, an insurance certificate or CSCS details, and we’ll confirm them with the quote.