Mastic sealant contractors in Isbister
Mastic sealing for building owners, managing agents and housing associations in Isbister and across the Orkney Islands. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Estate-wide sealant that is simply worn out
- Brittle perimeter mastic across a building
- Draught complaints from residents or tenants
Mastic sealing near Isbister
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Aftercare for building managers
Problems stay small when the joints are checked regularly. Specifically:
- Prioritise elevations facing the weather
- List the paperwork your organisation requires when you send details
- Check the asbestos register before any old mastic is disturbed
- Ask residents or tenants to report leaks and draughts early
Encourage occupiers to report water or draughts at frames. Early reports catch failures before damage spreads.
Left open, joint edges in render, brick or frames can deteriorate. Once that happens, repairs come before resealing and the job grows.
How we handle mastic sealing in Isbister
We diagnose before we prescribe: what has failed, what caused it and whether new sealant will actually solve it. Failed mastic is stripped, the faces taken back to sound material, primed where the manufacturer specifies and resealed and backing rod used wherever a joint is deep. The enquiries we see most involve damp patches beside frames and draughts at frames across a block, on communal entrances and stairwells, shopfronts below residential blocks and external wall and movement joints. A single leaking joint is often how a building in Isbister first comes to us: we check the joints around it and give you an honest view of what needs doing now and what can wait.
Around Isbister, outside mastic waits for dry weather and the right temperature. We agree a window with some flexibility.
Every job we finish is backed by a 12-month workmanship guarantee, in Isbister as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Where
- Isbister (KW17)
- Region
- Orkney Islands
- Cover
- 12 months on every job
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
On site: what to expect
We begin with a short walk round with whoever looks after the building, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. Jobs near Isbister are often grouped with others in the same area. Tell us how flexible your dates are.
- Each block or building is walked and the failed joints recorded with the likely cause.
- You get a fixed quote, priced per building where that helps your budgeting.
- Dates, areas and access are agreed so residents or tenants can be told in advance.
- We remove the old mastic completely and clean the joint faces back.
- Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
- Completed joints are inspected and carry a 12-month workmanship guarantee.
Before we start on site
- Let us know about inductions and permits
- Send asbestos survey details if the building is pre-2000
- Move anything stored against the joints
Getting a fixed quote
Quotes are fixed against the scope you send, so you know the figure before anyone is on site. To start the process, phone 01277 525 020 or email the details over.
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FAQs: Isbister
Can you quote for mastic across several buildings in and around Isbister?
Yes. Planned programmes across a building, block or estate are a core part of this service. We can phase the programme to suit your budgets and notice periods.
Will you travel to Isbister on the island?
Yes. We work across every Scottish council area, and that includes island locations such as Isbister. Island work is planned around ferry crossings and the weather, so photographs and a full list before we travel are essential.
When can the area be used after sealing?
That comes down to the sealant and the temperature. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.
Will you just go over the old sealant?
No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.
Do you check for asbestos in old sealant?
Some mastics in pre-2000 buildings contain asbestos. We ask for the asbestos register or survey before work starts and suspect material is tested first.
Is mastic sealing guaranteed?
There is a 12-month guarantee on our workmanship, backed by public liability insurance.
Can you take on resealing for a block portfolio?
Yes, block and estate work is a core part of what we do. Buildings are scheduled in turn with dates agreed in advance.
Cost factors for mastic joints
The price varies from site to site. It mainly depends on:
- Whether old sealant has to be cut out first
- Location, for remote and island sites
- Quantities, in metres or numbers
- Site requirements such as inductions and permits
Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.
Sending details for a quote
We can often quote from photos and a few details. Please tell us:
- A wide shot and a close-up of the area
- The postcode of the building
- Your programme or deadline
- Approximate linear metres or a joint schedule
Pricing a project or setting a maintenance budget? Send the scope and any drawings, and we will return a fixed quote you can plan around. For a chat about it beforehand, speak to us on 01277 525 020 or send photos by email.
Different surfaces, different methods
Planned maintenance
How long mastic lasts depends on exposure, movement and the product used. Regular inspection is the best way to plan resealing.
Estate-wide resealing programmes
Priority order can follow condition, complaints or your maintenance plan. You get one fixed quote per building or for the whole estate.
Mastic sealing around Isbister: what changes locally
The sea is no more than about 1 mile from Isbister. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first, so it’s worth inspecting those sides more often. Island jobs, Isbister among them, are planned around the ferry and the forecast. Send photographs and addresses so every building can be covered on as few trips as possible.
For owners and agents with buildings in or around Isbister, block-wide mastic programmes deal with frames and external joints of the same age together.
Isbister is about 6 miles north-west of Kirkwall, in the Orkney Islands. Any commercial site in Isbister is covered, whether it’s a single job or part of a planned programme. Our the Orkney Islands coverage takes in 51 places, large and small.
We cover the KW17 postcode districts for mastic joints. Close to Isbister, our area also takes in Norseman (1 mile west), Gorseness (2 miles north-east), Settiscarth (2 miles west), Tingwall (3 miles north) and Finstown (4 miles south-west). Remote and island addresses take more planning, from travel and ferries to the weather, so mention the location when you ring 01277 525 020 or use the quote form.
Local landmarks in Isbister
Nearby you will also find Langskaill House (3.3 miles north-east). Open spaces near Isbister include Enyas Hill and Birsay moors RSPB Reserve.
Also near Isbister
More services for Isbister
Do you need mastic sealing in Isbister?
We often find joints filled solid with no backing rod, so the mastic is glued to the joint bottom too. That three-sided adhesion stops it stretching and it tears.
What tends to prompt an enquiry:
- Complaints coming in block by block
- A mix of products and colours from past repairs
- Worn sealant at communal door frames
- Draught complaints from residents or tenants
Near Isbister, we review each elevation first so the quote covers what actually needs doing.
What your quote should include
- Their plan for phasing and protecting the area
- What site paperwork they can supply
- Whether old or failed sealant will be cut out, not overlaid
- Whether primer will be used where the manufacturer specifies it
Doing it in-house
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.
For most general trades, sealant is a sideline. A specialist prepares properly, controls joint depth and picks a product with the right movement class.