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

Sealant specialists in Isbister

Sealant work for offices, shops, hotels and other commercial buildings across Isbister, carried out by CSCS-carded applicators. CHAS accredited and fully insured.

  • Black mould through washroom sealant that won’t clean off
  • Frame mastic that has hardened and come away from the wall
  • Expansion joints with the sealant torn out
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
Scope agreed and priced before anything starts.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
Signed off, with 12 months’ guarantee.
Covering the South East & Scotland
Constructionline member
£5m PL insurance

Commercial sealant contractors for businesses in Isbister

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

Sealant specialists in Isbister

A reseal stands or falls on the preparation underneath it. Old silicone gives new sealant nothing to grip, so every trace of it is removed and the faces are cleaned until they’re sound and dry, with no dust or grease left. Where the sealant maker specifies a primer for that substrate, it goes on before the new bead. If you are dealing with leaks that seem to come through a sealant line and a top-up bead over failed sealant, now lifting, we can put it right, on washrooms and tea points, kitchen worktops and splashbacks and movement joints in walls and floors alike. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Isbister it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.

In an occupied building in Isbister, the job is planned so areas stay in use: we agree the order with you and hand back each area with its cure time.

Scottish weather decides a lot about outside work in a place like Isbister: outside joints need dry, frost-clear surfaces, so we agree a window with some give in it. Indoor work isn’t held up by rain.

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.

The Mastic Doctor team beside their liveried vans in front of an office building
Location
Isbister (KW17)
Wider area
Orkney Islands
Guarantee
A 12-month guarantee
Price
Quoted before any work starts
Call
01277 525 020
Page updated
3 November 2026

Why it’s worth doing now in Isbister

Spot repairs have their place. If the rest of the bead is the same age and product, though, it’s normally close behind. We can price both options so you can decide on the facts. Buildings that aren’t in daily use, such as halls and seasonal premises, may let water in unnoticed, so a failed joint has time to cause damage. Early resealing prevents it.

A quote for sealant joints depends on quantities, condition and access, plus any specification you’re working to. Call for a quote.

Why appoint us

  • 12-month guarantee on workmanship
  • Old sealant cut out, never sealed over
  • Work carried out by CSCS-carded applicators
  • CHAS accredited contractor

See our cost guide or how we’re accredited.

Signs you need commercial sealant contractors in Isbister

Outside, sunlight and rain wear sealant down year after year. Sunny elevations dry the surface out and exposed ones take driving rain, so beads chalk, stiffen and lose their stretch. Once it stiffens, the joint opens up at the next big temperature swing.

Site and facilities staff are often the first to spot these:

  • Leaks that seem to come through a sealant line
  • Earlier reseals applied straight onto the failed bead
  • Black mould through washroom sealant that won’t clean off
  • Untidy joints in a reception, shop floor or lobby

A lasting commercial joint around Isbister begins with the old bead fully out and the faces clean and dry.

What your quote should include

  • What level of public liability insurance do they hold?
  • How long is the guarantee, and what does it include?
  • How they’ll work around occupants
  • Their pre-qualification and accreditations

How to choose a sealant contractor

What affects the price in Isbister

A fixed quote reflects the actual work. It allows for:

  • How much existing material needs removing
  • Which sealant the job calls for
  • How much there is to seal
  • Phasing around occupants

Small jobs and large programmes are priced from the same things: scope, access, product and programme. Call for a quote and we will put a fixed figure on it.

What we need to price the job

The more we know, the firmer the quote. Helpful details to send:

  • Access details, including height
  • The site address and postcode
  • The product your specification calls for
  • Photos of the joints, close up and from further back

Photos, drawings or a schedule of the joints are often enough for a fixed quote. Where a site visit makes more sense, we will arrange one.

Building owners, agents and FMs in Isbister

Housing associations and managing agents often need work done across blocks and communal areas. We phase the work so people keep access, and each stage is agreed with your contact.

As a CHAS accredited contractor and Constructionline member, we are straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.

Different surfaces, different methods

Fire-rated seals where specified

Intumescent and other fire-rated sealants go in at service penetrations and linear gaps to the maker’s tested details, where they are specified. Fire-stopping design and sign-off sit with the designer, fire engineer or building control.

Movement joints in walls and floors

Brickwork, blockwork and floor slabs all have movement joints that need a flexible seal. Failed seals let grit and water in, and the edges start to suffer. The joints are resealed using a sealant matched to the movement and any traffic.

How a job runs

The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. After that, any old or failed material is removed, each joint is prepared and the new sealant goes in. Where we can, we combine work around Isbister with other jobs nearby. Tell us how flexible your dates are.

  1. First, details reach us through the quote form or a site visit.
  2. We diagnose the cause of failure and price a fixed scope.
  3. Work is phased around your occupiers where areas need to stay in use.
  4. Old sealant is cut out completely, never sealed over.
  5. A suitable product for each joint goes in at the right depth and is tooled.
  6. We check the work with you, and the 12-month guarantee starts.

Getting the site ready

  • Send any specification or drawings in advance
  • Let us know about inductions and permits
  • Point out parking and an unloading spot

Ask for a quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. To take the first step, call the office on 01277 525 020 or email drawings and photos.

Ask for a quote

Advice

Your questions answered

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

Yes. Our area covers all of Scotland, cities, towns and islands alike, and that includes island locations such as Isbister. We plan island jobs around the ferry and the forecast, and bring everything the job needs on the first crossing.

Does a coastal location like Isbister affect which sealant is used?

It can. Coastal exposure works external joints harder than inland weather. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.

Which site documents can you send us?

Send your site requirements with the enquiry. From you, we will need the asbestos information for older buildings and any site rules.

Is your work guaranteed?

Each job sits under our 12-month guarantee. Looking after the joints as we advise helps them last.

How long does a typical visit take?

We plan the time on site around your programme and access. You’ll have an expected duration with the quote.

Do you work to architects’ specifications?

Yes. We follow the specification, along with the manufacturer’s installation guidance, and we raise anything unclear before work begins.

How long do sealant joints last?

There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular inspection is the best way to catch problems early.

Commercial sealant contractors around Isbister: how the place shapes the job

With the shore within about 1 mile, Isbister counts as a coastal location. For shops, hotels and offices, that means frontage and frame joints that weather faster than they would inland. Where a frontage needs a particular colour, the product still has to suit that exposure. For an island location such as Isbister, work is planned around ferry crossings and the weather. Send photographs, a complete list and any colour references first, so nothing is left behind.

Colour matters on frontages and fit-outs, so the quote confirms which colours the chosen product comes in.

Isbister is about 6 miles north-west of Kirkwall, in the Orkney Islands. Our applicators travel to Isbister for work on sealant joints. Across the Orkney Islands, 51 places are covered, Isbister among them.

Anyone looking for commercial sealant contractors in KW17 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. We also cover Norseman (1 mile west), Gorseness (2 miles north-east), Settiscarth (2 miles west), Tingwall (3 miles north) and Finstown (4 miles south-west). For island and remote sites, we plan travel and materials carefully, so the full address helps from the start.

Near you in Isbister

Other landmarks nearby include Langskaill House (3.3 miles north-east). For a walk, there’s Enyas Hill and Birsay moors RSPB Reserve.

Map of Isbister © OpenStreetMap contributors
Accreditations

Trusted. Accredited. Insured.