Mastic sealant contractors in Stornoway
Mastic sealing for building owners, managing agents and housing associations in Stornoway and across Na h-Eileanan Siar. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.
- Communal area joints that look neglected
- Water getting in round frames after rain
- No planned programme for sealant
Mastic sealing near Stornoway
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing in Stornoway
Blocks are lived in, so access and disruption have to be thought through. The sequence, the areas and the dates are settled with you so you can let residents know what is happening. Entrances and stairwells are kept in use while we work. We work on balcony and threshold joints, shopfronts below residential blocks and communal entrances and stairwells, and what we are called in for most is repeated reactive repairs to the same buildings and open joints in brickwork or panels. Most enquiries from Stornoway start with one failed joint and grow into a wider look at the building: we check the joints around it and give you an honest view of what needs doing now and what can wait.
For buildings around Stornoway, we group the work to keep travel and visits down. Send addresses and photos for a quote covering the batch.
Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.
- Place
- Stornoway (HS1, HS2)
- Wider area
- Na h-Eileanan Siar
- Guarantee
- 12 months on our workmanship
- Price
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Page updated
- 3 November 2026
For owners and agents in Stornoway
Stornoway is within about 1 mile of the coast. Blocks and commercial buildings facing the sea take the most weather on their window perimeters and external joints. Island jobs, Stornoway among them, are planned around the ferry and the forecast. Send photos and addresses so every building can be covered on as few trips as possible.
Property owners at sites such as Gleann Seileach Business Park, 0.8 miles north-west of Stornoway, can have mastic renewed between lettings.
Stornoway (Gaelic: Steòrnabhagh) is in Na h-Eileanan Siar. Commercial clients in Stornoway use us for work on mastic joints. Across Na h-Eileanan Siar, 87 places are covered, including Stornoway.
Anyone looking for mastic sealing in HS1 and HS2 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Buildings on Barony Square, Bain Square and Grant Square are within our area for mastic joints. Being close to the A857 and A859, Stornoway is easy to get to with materials and equipment. If your building is just outside Stornoway, we cover Plasterfield (1 mile east), Laxdale (1 mile north), Sandwick (1 mile south-east), Steinis (1 mile east) and Newmarket (1 mile north). Among the larger centres in Na h-Eileanan Siar is Stornoway, and its commercial and public buildings are all within our area. For island and remote sites, travel and materials need planning ahead.
What’s near Stornoway
We work on buildings around Neptune's Bar, among other places. Other landmarks nearby include Western Isles Hospital (0.5 miles north) and Lewis Loom Centre (under half a mile south-west). Open spaces near Stornoway include Loch Àirigh na Lic.
Aftercare for building managers
Regular inspection catches problems early. Specifically:
- Track which buildings were done and when
- Share the asbestos register when you send details
- List the paperwork your organisation requires when you send details
- Plan resealing building by building rather than complaint by complaint
Our workmanship is covered for 12 months, so report any failure in that time. After that, regular inspection keeps the programme on track.
Mastic fails gradually, then all at once in a wet spell. Acting at the first signs keeps it a straightforward reseal and saves internal repairs.
Your questions answered
Is Gleann Seileach Business Park, near Stornoway, within your area?
Yes. We cover Stornoway and the area around it, including industrial estates, business parks and retail parks such as Gleann Seileach Business Park. Send details of the unit and the work through our quote form for a quick quote.
Can you take on a job in Stornoway, on the island?
Yes, Stornoway is within the area we cover. We cover the whole of Scotland. Ferry times and the weather set the plan, so we ask for photographs and a full list first.
Do you check for asbestos in old sealant?
We don’t remove asbestos-containing materials. If old sealant is suspected, work stops until it’s tested in line with the dutyholder’s asbestos management.
What do you charge?
Each job is quoted on its own details. For yours, call 01277 525 020 or send photos by email.
How do you reach windows on upper floors?
Access is discussed and agreed before the quote is fixed. Tell us the number of storeys and whether scaffold or other access is planned and we’ll confirm the approach in the 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.
Can you plan resealing across several buildings?
Yes, planned programmes suit estates and portfolios. You get a fixed quote per building or for the whole job.
What the job involves on each surface
Commercial and mixed-use buildings
Where retail and residential share a building the programme has to suit everyone. We plan around the site hours and access windows you give us.
Estate-wide resealing programmes
Consistent products and colours across an estate make future maintenance simpler and easier to manage.
When to call us in Stornoway
We often find joints filled solid with no backing rod so the mastic is bonded on three sides. That three-sided adhesion stops it stretching and it tears.
These are often picked up first by site or facilities staff:
- Brittle perimeter mastic across a building
- Occupiers reporting cold air round windows
- Damaged joints in communal entrances and corridors
- Water getting in round frames after rain
Owners near Stornoway can renew frame and external mastic block by block on one programme.
Before you book anyone
- Do they follow the manufacturer’s priming guidance?
- Health and safety accreditation such as CHAS
- How joint depth will be controlled
- How the existing material will be dealt with
What sets the cost
Before we quote, we look at:
- The site’s rules and procedures
- How much there is to seal
- Which sealant the job calls for
- Whether the work must be split into stages
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we’ll explain how it’s made up.
What we need to price the job
A few photos plus some basic facts will normally do. It helps to include:
- The type of building and who uses it
- The postcode of the building
- Photos of the joints, close up and from further back
- Rough lengths or quantities, or drawings if you have them
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To start the process, ring 01277 525 020 or send photos by email.
Towns and villages near Stornoway
More services for Stornoway
Why deal with it now?
Looking at mastic during planned maintenance costs little. Leaving it until there’s a leak turns it into reactive work and less choice about when. 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.
The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site rules also count.
Why us?
- Specification-led, product-correct work
- Work carried out by CSCS-carded applicators
- Workmanship guaranteed for 12 months
- Commercial sealant work since 2005
See how commercial sealant jobs are priced or our accreditations.
Our process
Site rules come first: sign-in, induction and whatever permit system the building uses. With the paperwork done, we take the joints in the sequence agreed with you, and each area is checked before we leave it. For a building near Stornoway, directions, keys and a contact on the day are worth sorting early. That goes into the plan alongside the quote.
- Each block or building is walked and the failed joints recorded with the likely cause.
- A fixed quote follows, split by block or building if that suits you.
- The programme is fixed with you, including dates you can pass on to residents or tenants.
- We remove the old mastic completely and clean the joint faces back.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
Preparing the site
- Arrange parking or a loading space
- Flag any permit to work we will need
- Have the specification and drawings to hand
Getting a fixed quote
For a fixed quote, speak to us on 01277 525 020 or email the details over. Our quote form is another easy route.