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

Coloured Sealant contractors in Lerwick

Our CSCS-carded applicators take on coloured and colour-matched sealant for visible joints in Lerwick. Send photos or drawings for a fixed quote.

  • Colour changes after a rebrand or refit
  • Coloured joints that have cracked with movement
  • Shop fits that need consistent sealant colours across sites
1
Send details
Tell us about the site, with photos if you have them.
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
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
CHAS & Constructionline
£5m PL insurance

Need coloured sealant in Lerwick?

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

Surface by surface

Paintable sealants

Where no colour in the range is close, a paintable hybrid or PU sealant can sometimes be painted to match. That only works where the joint and specification allow it, as paint can crack on a moving joint.

Cladding panels

Panel joints form a grid on the facade, so colour matters. We pick a facade-grade sealant in a shade that sits with the panels, rated for the joint’s movement.

How we handle coloured sealant in Lerwick

Colour is often written into the specification, by RAL reference or by matching a sample. Standard sealant ranges cover many colours, so we check what the specified product is made in before we quote. We don’t promise an exact custom match, but we’ll show you the closest options. Site teams most often ask us about coloured joints that have cracked with movement and poorly tooled joints on visible finishes, on natural stone and brick, office fit-out finishes and shop-fit joinery and counters. A specialist sealant contractor works differently from a general builder: in Lerwick, that means joint design, primers and backing rod as standard.

Scottish weather decides a lot about outside work in a place like Lerwick: sealant needs a dry joint and the right temperature, so external work has a weather window built in. Internal joints can be done whatever the day brings.

Whoever the client is, the cover is the same: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

The Mastic Doctor team standing beside their branded vans outside an office building
Location
Lerwick (ZE1)
Wider area
Shetland Islands
Guarantee
A 12-month guarantee
Quotes
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026

Questions about Lerwick

Does the sea air around Lerwick change the choice of sealant?

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 work at a site such as North Ness Business Park, by Lerwick?

Yes. Estates, retail parks and business parks around Lerwick, North Ness Business Park among them, are all within reach. A few photos and the unit address let us price the work.

Do you work in Lerwick?

Yes. We cover Lerwick, and the simplest way to start is to ring 01277 525 020 or send details through our quote form.

Do you do a sample bead?

Yes. Where colour is critical, we can agree a short sample bead in a discreet spot. Cured sealant can look slightly different from the wet bead, so it’s worth checking in real light.

Do you seal on top of existing sealant?

No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.

Does weather matter for sealant work?

It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.

Will sunlight affect the sealant colour?

Exposed sealant can change in appearance over the years. UV and grime can soften or alter the colour, which is why exposed joints are inspected and resealed when needed.

How a job runs

When we get to site, we report to your site contact and complete whatever induction the building runs. Floors, finishes and fittings next to the joints are covered before any cutting starts, and the work normally takes about the same time as any other sealant work, plus a little longer if a sample bead is agreed first. Jobs near Lerwick are often grouped with others in the same area, to make the most of each trip. Tell us how flexible your dates are.

  1. We start with photographs, drawings or a visit to see the finishes.
  2. Colour options from the specified product’s range are shared with you.
  3. The programme and access are agreed, including any phasing.
  4. We prepare each joint, prime where needed and fit backing.
  5. The agreed colour is installed and tooled neatly.

What we need from you

  • Make sure the joints can be reached
  • Warn occupants and staff about the work
  • Point out any areas we must not close

Get a fixed quote

Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.

Get a quick quote

Read more

Why act early in Lerwick

It’s far cheaper to approve a sample than to strip and redo a full run. A short trial bead costs very little compared with replacing joints in the wrong colour. Around smaller places like Lerwick, halls, stores and seasonal buildings may not be checked often, so a failed joint has time to cause damage. Early resealing prevents it.

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we’ll explain how it’s made up.

Why us?

  • A range of standard colours, depending on the product
  • RAL and finish matching where the product range allows
  • CHAS accredited contractor
  • Failed material removed, not covered up

See how commercial sealant jobs are priced and how we’re accredited.

What sealant work can’t fix

A few problems need another trade or a different fix, and we point that out rather than sealing over them:

  • Exact bespoke colour matches beyond the product’s range
  • Stopping sealant from ever changing colour outdoors
  • Repairing damaged frames or cladding

If in doubt, call the office on 01277 525 020 or send photos by email and we will say what we think.

Surfaces we seal

  • Natural stone and brick
  • Cladding panels
  • Hotel bathrooms and public areas
  • Office fit-out finishes
  • Powder-coated and anodised frames
  • Shop-fit joinery and counters

Maintenance after handover

Your facilities or cleaning team can help the joints last. Share these points with them:

  • Protect fresh coloured sealant from dust and handling
  • Record the product and colour reference on the building file
  • Use one colour standard across multi-site work
  • Insist on the agreed colour for any repair

Colours can soften with light and weathering. That is normal for exposed sealant.

Ask for a trial bead on high-profile areas. Seeing the cured colour in place avoids surprises.

What Lerwick’s businesses ask us to seal

Lerwick sits close to the coast, within about 1 mile. For shops, hotels and offices, that means frontage and frame joints that weather faster than they would inland. A matched colour is only half the brief on an exposed frontage. Island jobs, Lerwick among them, are planned around the ferry and the forecast. Photos and a full list before we travel, with any colour references, mean everything comes on the first crossing.

Parks like North Ness Business Park, 0.5 miles to the north-east of Lerwick, see tenants come and go, and every move-in brings joints to seal. A business with units at North Ness Business Park and South Gremista Industrial Estate needn’t use two contractors for its sealant.

Lerwick is in the Shetland Islands. Looking for coloured sealant in Lerwick? We can help, as we do across the Shetland Islands. Lerwick is one of 63 places in the Shetland Islands on our list for colour-matched joints.

If you need coloured sealant in ZE1, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. If your site is on High Street, Market Street and Church Road or close by, we can quote for colour-matched joints. Main routes into Lerwick include the A969 and A970. Just outside Lerwick, we also work in Sound (1 mile south-west), Gremista (1 mile north), Heogan (1 mile north-east), Grindiscol (2 miles south-east) and Gunnista (2 miles north-east). As one of the bigger centres in the Shetland Islands, Lerwick has a broad mix of commercial, public and industrial buildings, and we cover them all. Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so give the site location in your enquiry.

Local landmarks in Lerwick

We work on buildings around Gilbertson Park and Grand Hotel. Well-known places in the area include Gilbert Bain Hospital (less than half a mile south) and Shetland Museum (less than half a mile north-east). Open spaces near Lerwick include Setter Hill and Clickimin Loch.

Map of Lerwick © OpenStreetMap contributors

Common problems we fix in Lerwick

Most enquiries start with a joint that looks wrong: a pale bead on a dark frame, or an old seal that has discoloured. Replacing it with a suitable colour restores the intended look.

Most enquiries start with something like this:

  • Colour changes after a rebrand or refit
  • Hotel refurbishments with a set colour scheme
  • Dirty, discoloured joints in public areas
  • Poorly tooled joints on visible finishes

Refits at hotels like The Lerwick Hotel, less than half a mile south-east of Lerwick, bring joints at vanity tops, bars and reception desks that guests see every day.

Comparing quotes

  • How long is the guarantee, and what does it include?
  • How joint depth will be controlled
  • Is the sealant right for the movement and the substrate?
  • How the joint faces will be prepared and primed

Questions to ask before you appoint anyone

Accreditations

Trusted. Accredited. Insured.