
Sealant specialists in Lerwick
Planning work on a sealant joint in Lerwick? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Shrunken sealant along kitchen worktops and splashbacks
- Frame mastic that has hardened and come away from the wall
- Black mould through washroom sealant that won’t clean off
Commercial sealant contractors for Lerwick sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
For managing agents and facilities managers
Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.
Commercial sealant contractors in Lerwick, done properly
On older buildings, particularly those put up before 2000, some old mastics and sealants may contain asbestos. Before anything is cut out, we ask for the asbestos register or survey, since managing asbestos is the dutyholder’s responsibility. If a material is suspected, work stops until it’s tested, and we don’t remove asbestos-containing materials ourselves. We work on window and door perimeters, kitchen worktops and splashbacks and floor and threshold joints, and what we’re called in for most is sanitary sealant that has gone black and patchy and frame sealant that has cracked, shrunk or pulled away. A specialist sealant contractor works differently from a general builder: in Lerwick, that means joint design, primers and backing rod as standard.
The most common commercial job in Lerwick is resealing joints that have simply reached the end of their life: split, chalky or peeling, with leaks or mould starting behind it.
Travel to smaller places such as Lerwick is planned so the whole job is finished in one visit where possible, so it helps to have photos and a full list first. Several jobs nearby can also be put together.
Work we carry out comes with a 12-month guarantee. If an installation problem shows up, give us a call on 01277 525 020 or send details through our quote form and we’ll arrange a return visit.

- Place
- Lerwick (ZE1)
- Wider area
- Shetland Islands
- Cover
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
After the work
After handover, these steps help:
- Respect the cure time before reopening an area
- Log reseals in the O&M or maintenance records
- On pre-2000 buildings, share the asbestos information before work starts
- Ask cleaners to use a soft cloth and mild cleaner on sealant
We stand behind the workmanship with a 12-month guarantee. File the handover note with the building records.
Once sealant fails in a movement joint, grit and debris get in. The joint can no longer close, so its edges crack or spall. That turns a sealant job into something bigger.
Commercial premises in Lerwick
The sea is no more than about 1 mile from Lerwick. Shopfronts, frames and external joints on commercial buildings there take wind-driven rain and, closer to the shore, salt in the air. Where a frontage needs a particular colour, the product still has to suit that exposure. The 3 miles around Lerwick take in at least three named trading estates, business parks or retail parks. Tenant changes on such sites bring fit-outs, and fit-outs bring new joints.
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. If you have premises on more than one site, say at North Ness Business Park and South Gremista Industrial Estate, one contractor and one quote can cover both.
Lerwick is in the Shetland Islands. Businesses, contractors and managing agents in Lerwick can call on us for sealant joints. Our the Shetland Islands coverage takes in 63 places.
Work on sealant joints is covered throughout ZE1, whatever the building. For a building on High Street, Market Street and Church Road or nearby, we can quote for sealant joints. You will find Lerwick on or near the A969 and A970. We also cover 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). Lerwick ranks among the main centres of the Shetland Islands, with offices, shops, schools and other public and commercial buildings. 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.
Near you in Lerwick
Around Lerwick, our work takes us to commercial buildings near Gilbertson Park and Grand Hotel and the streets around them. Other landmarks nearby include Gilbert Bain Hospital (under half a mile south) and Shetland Museum (less than half a mile north-east). For a walk, there’s Setter Hill and Clickimin Loch.
How a job runs
In a busy building, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed before we move to the next. For work around Lerwick, we aim for one trip, which is why we ask for photographs and a full list first. Outside work also needs a suitable weather window.
- We start with the evidence: photos, drawings or a look on site.
- A fixed quote follows, with removal and preparation included.
- Sequence, access and working times are settled before the first joint is touched.
- Each joint is stripped, cleaned back to sound faces and primed where the maker specifies.
- Depth is set with backing, then the sealant is applied, tooled and the area tidied.
- We hand back each area with its cure time and our 12-month guarantee.
Before we start on site
- Have the specification and drawings to hand
- Point out any areas we must not close
- Share your working hours and any access restrictions
Get a fixed quote
Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, speak to us on 01277 525 020 or email us.
Read more
FAQs: Lerwick
Do you cover business parks and estates near Lerwick, such as North Ness Business Park?
Yes. Our area takes in Lerwick and its surroundings, with estates and business parks such as North Ness Business Park included. A few photos and the unit address let us price the work.
Can being near the sea in Lerwick affect the sealant we need?
It can. Coastal exposure works external joints harder than inland weather. We check the specified product suits the exposure and pay close attention to preparation.
How is commercial sealant work priced?
Photos, drawings or a schedule of the joints are typically enough to start through our quote form. Where we need to see it, we’ll arrange a site visit, then send a fixed quote.
How long before the joints can be used?
Curing time varies by product, and we confirm it on the day, and sign any area that should be left alone.
Could the old sealant in an older building contain asbestos?
It’s possible in older buildings, especially those built before 2000. We ask to see the asbestos register or survey before disturbing old sealant, and anything suspect is left until it has been tested.
Which sealant will you use?
If the job is specified, we follow the specification. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
How long does a job like this take?
It depends on the scope, though a typical visit usually takes a few hours to several days on most single sites, depending on joint lengths and access. Larger or phased jobs take longer, and we will give you a timescale with the quote.
General trades versus a specialist
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
Towns and villages near Lerwick
Also in Lerwick
Why act early in Lerwick
Some low prices are low because nothing gets cut out. New sealant laid on old silicone has nothing to bond to, so it peels. Every quote we give includes full removal and preparation, which is where the lasting value is. Exposed buildings in Scotland take a lot of weather, so it’s worth renewing joints around Lerwick before they leak.
What a job costs comes down to how many linear metres there are, what has to come out first and how the joints are reached. Call for a quote when you’re ready.
Why appoint us
- A Constructionline member, so easy to vet
- Sealing commercial buildings since 2005
- Fixed quotes based on photos, drawings or a visit
- Colour options checked against the specified product
Take a look at our cost guide or how we’re accredited.
When to call us in Lerwick
A good share of the joints we inspect were topped up instead of being renewed. Fresh sealant won’t stick to the old bead underneath, so the top layer lifts, holds water and hides what’s going on. By the time it shows, there can be two or three layers to cut out.
If one of these sounds familiar, it’s time for a closer look:
- Untidy joints in a reception, shop floor or lobby
- Mouldy silicone around WCs, urinals and vanity tops
- Wall and floor joints that have lost their seal
- Damp patches where an external joint has failed
In hotels such as The Lerwick Hotel (less than half a mile south-east of Lerwick), refurbishments normally mean bathroom, bar and reception joints where a matched sealant colour has to sit with the finishes.
What your quote should include
- What level of public liability insurance do they hold?
- What the guarantee covers, and for how long
- How joint depth will be controlled
- Who will actually carry out the work