Sealant applicators in Walls
Sealant work for offices, shops, hotels and other commercial buildings in Walls and across the Shetland Islands. CHAS accredited and fully insured, with a 12-month guarantee.
- Mouldy silicone around WCs, urinals and vanity tops
- A top-up bead over failed sealant, now lifting
- Window and door perimeter joints that have cracked open
Commercial sealant contractors in Walls
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Doing it in-house
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we will confirm the paperwork you need with the quote.
For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Commercial sealant contractors in Walls, done properly
Sealant joints are easy to overlook until one lets water in, and in an occupied building failure typically announces itself as a stained ceiling or an unhappy tenant. Mastic Doctor works as a commercial sealant contractor for facilities managers, managing agents and main contractors. Our job is to diagnose the failure, remove the old bead and seal again using a product chosen for the movement and exposure. We work on external facade joints, floor and threshold joints and window and door perimeters, and the failures we’re asked to look at most are smeared sealant across finishes from a rushed job and movement joints packed with grit and debris. Searching for sealant specialists in Walls? We have been sealing commercial buildings since 2005, CHAS accredited and a Constructionline member.
Multi-site clients with buildings in and around Walls can put several sites on one programme, so standards and paperwork match across every site.
Around smaller places such as Walls, the commercial buildings tend to be hospitality, local shops, schools, health centres and converted rural buildings. Their kitchens, washrooms and window perimeters all need joints that keep water out.
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.
- Where
- Walls (ZE2)
- Wider area
- Shetland Islands
- Guarantee
- 12 months on every job
- Quote
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Why deal with it now?
Some managers wait for a fit-out before touching the mastic. That’s reasonable for internal joints that are just tired-looking, but a joint letting water in now keeps doing damage until the refurb arrives. We can seal the urgent joints now and leave the rest for the programme. Renewing every failing joint on one visit is the sensible approach for a place like Walls. Send photographs and we’ll quote for everything together.
The price depends on how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a quote when you are ready.
Why clients in Walls choose us
- CSCS-carded applicators
- Fixed quotes based on photographs, drawings or a visit
- Commercial sealant work since 2005
- Colour agreed before work starts
Owners, agents and contractors
When you manage a building on behalf of an owner, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
As a CHAS accredited contractor and Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.
Commercial premises in Walls
The sea is no more than about 1 mile from Walls. Shopfronts, frames and external joints on commercial buildings there take wind-driven rain and, closer to the shore, salt in the air. We choose a product rated for the exposure, then confirm the colours available for it. The east of Scotland, where Walls is, gets less rain than the west. Cold snaps still affect when external joints can be sealed.
Where a joint is on show in Walls, we’ll check which shades the product offers before work starts.
Walls is in the Shetland Islands. Anywhere in ZE2, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. 63 places across the Shetland Islands fall within our area, Walls among them.
We take on sealant joints across the ZE2 postcode area, for business premises of every kind. Streets here include New Road, Vagaland and Pier Road, and sites on any of them can send details for a fixed quote. Close to Walls, our area also takes in Easter Skeld (5 miles south-east), Sandness (6 miles north-west), Melby (6 miles north-west), Aith (8 miles north-east) and Kalliness (9 miles east). A short drive away, we cover Lerwick (15 miles east), Sound (15 miles south-east), Scalloway (12 miles south-east) and Brae (14 miles north-east). Where a site is remote or on an island, travel and materials need planning ahead.
Near you in Walls
The countryside around Walls includes Loch of Bardister and Ward of Culswick.
Surface by surface
Window and door perimeters
Inside, cracked sealant around frames and window boards is common. We use a paintable product where decorating follows and a silicone where it doesn’t, in a shade that suits the frame.
Washrooms and toilets
Washroom joints take water, cleaning chemicals and constant use. Old sealant comes out and a sanitary silicone with anti-mould additives goes in, phasing the rooms so not every toilet is closed at once.
More services for Walls
On site: what to expect
Where the site stays busy, the work is phased so only one area is out of use at a time. Each area is protected, prepared and sealed, then handed back before we move to the next. For a building near Walls, directions, keys and a contact on the day are worth sorting early. We will confirm the plan with the fixed quote.
- Site photographs, drawings or a visit tell us what’s there and how it has failed.
- You get a fixed quote covering removal, preparation and the new sealant.
- 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.
- Backing goes in, the new sealant is laid and tooled, and the area is left neat.
- Completed areas are signed off with you under our 12-month guarantee.
Getting the site ready
- Tell us what induction or permit system the site runs
- Agree which areas must stay open
- Send any specification or drawings in advance
Ask for a quote
A handful of photographs and a postcode is the fastest way to a quote. Send them through the quote form, or give us a call on 01277 525 020 or email us to discuss it first.
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What we’re called out for in Walls
External sealant takes a steady beating from the weather. Sunny elevations dry the surface out and exposed ones take driving rain, so beads chalk, stiffen and lose their stretch. A hardened bead can’t follow the building any more.
These are often picked up first by site or facilities staff:
- Weathered facade sealant that no longer flexes
- Frame sealant that has cracked, shrunk or pulled away
- Gaps behind commercial kitchen worktops and sinks
- Messy, uneven beads from earlier work that let the building down
Whatever the building in Walls, commercial sealant work starts with cutting out the failed bead and cleaning the joint back to sound material.
What to look for in a quote
- Whether old or failed sealant will be cut out, not overlaid
- Do they follow the manufacturer’s priming guidance?
- The terms of the workmanship guarantee
- Their approach to joint depth and backing
Common questions from Walls clients
Is Walls inside the area you cover, given it’s on an island?
Yes. We cover the whole of Scotland, and that includes island locations such as Walls. Ferry times and the weather set the plan, so we ask for photos and a full list first.
Can being near the sea in Walls affect the sealant we need?
It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.
Could the old sealant in an older building contain asbestos?
We check the asbestos register or survey before any old sealant is disturbed. Managing asbestos is the dutyholder’s responsibility and removing it isn’t something we do.
Does the weather affect the work?
Outside, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.
How long does a typical visit take?
That varies with the scale of the job, but the work typically 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’ll give you a timescale with the quote.
Is it fine to apply new sealant on top of old?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
Is failed sealant stripped out, or sealed over?
Removal comes first, every time. Then the joint is cleaned, primed where the maker specifies, backed to depth and resealed.