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

Bigton construction mastic

Mastic packages for new-build and refurbishment projects across Bigton, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Internal caulk splitting as the building dries out
  • Oversized or tapered gaps around new frames
  • Failed sealant in an existing building being refurbished
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
London, the South East & Scotland
Constructionline member
Fully insured: £5m PL

Construction mastic for Bigton sites

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

About our construction mastic in Bigton

External mastic depends on the weather in a way most internal trades don’t. Each sealant has a temperature range, and damp, frost or condensation on frames stops work. Internal sealing often fills those days. If you have a long mastic snag list close to completion and internal caulk splitting as the building dries out, we can put it right, whatever the surface. Whoever orders the work in Bigton, the brief is typically the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

Outside mastic in Scotland needs a dry, frost-clear joint, and in a place like Bigton that means watching the forecast. We build some give into the plan and agree it with the site manager.

Our workmanship is guaranteed for 12 months, wherever the site is. If our installation lets you down in that time, we return and fix it.

Mastic Doctor team members lined up next to their branded vans outside an office building
Location
Bigton (ZE2)
Wider area
Shetland Islands
Guarantee
12 months on every job
Quotes
A fixed quote before we start
Phone
01277 525 020
Updated
3 November 2026

Construction mastic in Bigton: the local picture

With the shore within about 1 mile, Bigton counts as a coastal location. On a coastal site, facade and perimeter joints face driven rain and, closer to the beach, salt, so joint design, primers and product choice deserve extra care. Island jobs, Bigton among them, are planned around the ferry and the forecast. Everything for the package travels with us, so drawings and quantities matter.

A facade joint near Bigton lasts when width, depth and backing are right, not just the finish.

Bigton is in the Shetland Islands. Across the ZE2 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. We work across 63 places in the Shetland Islands, large and small.

We cover the ZE2 postcode districts. Nearby places we also cover include Levenwick (2 miles east), Hoswick (3 miles north-east), South Scousburgh (3 miles south), Sandwick (3 miles north-east) and Boddam (4 miles south) for mastic packages. Further afield, our area takes in Lerwick (13 miles north-east), Sound (13 miles north-east) and Scalloway (11 miles north). Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so mention the location when you give us a call on 01277 525 020 or email drawings and photos.

Local landmarks in Bigton

The countryside around Bigton includes Loch of Vatsetter.

Map of Bigton © OpenStreetMap contributors

What sealant work can’t fix

Part of a good diagnosis is knowing where sealant stops. We’ll tell you if the real problem is one of these:

  • Fire-stopping design or sign-off (that’s for the designer, fire engineer and building control)
  • Glazing units that are cracked or misted
  • Oversized gaps that need packing or adjustment by others

If in doubt, speak to us on 01277 525 020 or email the details over and we’ll say what we think.

What we seal

  • Window and door perimeters
  • Brick and block movement joints
  • Internal decorators’ caulk
  • Sanitary and kitchen joints
  • Cladding and panel joints
  • Floor and skirting junctions

Why it’s worth doing now in Bigton

Leaving mastic to whichever trade is fitting the element can look cheaper on paper. In practice it often means different standards, gaps in responsibility and snags nobody owns. A single mastic package gives one point of responsibility and a consistent finish. Around smaller places like Bigton, halls, stores and seasonal buildings may not be checked often, so a failed joint has time to cause damage. Resealing early avoids that.

Every site prices differently: joint size, product, access and site hours all play a part. Send the details and a fixed figure follows.

Why us?

  • Failed material removed, not covered up
  • Colours confirmed for the specified product
  • Constructionline member for supplier checks
  • Coloured sealants to suit the setting, where available

Take a look at our cost guide and how we’re accredited.

How the job changes by surface

Snagging before handover

Snags typically come from damage by following trades, missed joints or poor earlier work. We price snagging as part of the package or as a separate visit, depending on what suits the programme.

Fire-rated sealant where specified

Not every penetration suits a sealant. Other products are used for some services and gaps. Record requirements are agreed with the quote.

Your questions answered

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

Yes. Islands are part of our area, Bigton included. Island work is planned around ferry crossings and the weather, so photographs and a full list before we travel are essential.

Can you keep pace with our programme in Bigton?

Yes, we work to the programme and the sequence the site sets. Tell us which site documents you need, such as RAMS, our insurance certificate or CSCS details, and they’re confirmed with the quote.

Does weather matter for sealant work?

It can, when the joints are outside. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Indoors, the weather is rarely a problem.

When is resealing likely to be due?

It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.

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.

Are you insured?

Yes. Mastic Doctor is fully insured, public liability included.

Can you clear a mastic snag list before handover?

Yes. We clear snags by redoing joints rather than patching them, working to your handover date.

Looking after the joints

Once the work is signed off, these steps help:

  • Ask installers to correct oversized gaps first
  • Keep scrapers and abrasive pads off new beads
  • Ask for joint and product checks before the package is urgent
  • Keep finished joints away from paint, plaster and scrapers

Once an area is sealed, protect it from following trades. Fresh sealant needs its cure time before it’s cleaned, painted near or knocked, and that time depends on the product, temperature and joint depth.

Oversized gaps are a problem better caught early. Sealant stretched over an oversized gap won’t last so packing or adjustment by the installer comes first. We raise them during our first walk of the area.

On site: what to expect

We follow your site rules from the start: sign-in, induction and whatever permit system the building uses. Once we are cleared to begin, the joints are worked through in the order agreed with your site contact. Tell us who will meet us and how to get in at your building near Bigton. We’ll confirm the plan with the fixed quote.

  1. Drawings, the sealant specification and your programme come to us for pricing.
  2. You receive a fixed quote listing scope, products and phasing.
  3. Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
  4. Areas are sealed plot by plot or floor by floor as the trades hand them over.
  5. Joints are cleaned, primed where the maker requires it, backed and sealed to the specification.
  6. Snags are cleared before handover and completed areas carry our 12-month guarantee.

What we need from you

  • Confirm the product named in the specification
  • Agree which areas must stay open
  • Arrange parking or a loading space

Ask for a quote

Let us know the site, the scope and your timescale, and we will put a fixed quote together. To get it moving, phone 01277 525 020 or email us.

Get a quick quote

Advice

When to call us in Bigton

A joint without backing rod or bond-breaker often fails early. Bonded to the base of the joint and both sides, sealant can’t stretch evenly so we set the depth properly before sealing.

Look out for the following:

  • External joints sealed in damp or cold conditions that are now failing
  • Missed perimeter joints on a new elevation
  • Frame gaps too wide for sealant alone
  • Mastic snags holding up handover

For contractors building in or near Bigton, we seal to the drawings, the specification and the programme.

What your quote should include

  • Will CSCS-carded applicators be on site?
  • What level of public liability insurance do they hold?
  • What site paperwork they can supply
  • Their pre-qualification and accreditations

Choosing a commercial sealant contractor

Accreditations

Trusted. Accredited. Insured.