Mastic sealing for building owners and managing agents in Sandwick, Na h-Eileanan Siar
Mastic sealing for building owners, managing agents and housing associations throughout Sandwick and nearby, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Leaks at window and door perimeters
- Draught complaints from residents or tenants
- Brittle perimeter mastic across a building
Mastic sealing near Sandwick
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing in Sandwick, done properly
There isn’t one mastic for every joint on a building. Window perimeters and external joints often take a low-modulus neutral-cure silicone, while hybrid polymer sealants grip many materials and are often paintable. We will confirm the colours available for the specified product. If you are dealing with damp patches beside frames and repeated reactive repairs to the same buildings, we can put it right, whatever the surface. One point of contact handles commercial sealant work in Sandwick from the first photos to the final walk-round, whether it’s one building or several.
Outside mastic in Scotland needs dry joints and the right temperature, so work around Sandwick is planned with the forecast. We agree a window with some flexibility.
We sign every job off with a 12-month guarantee. The promise is simple: if our work fails within that year, we put it right.
- Place
- Sandwick (HS1, HS2)
- Region
- Na h-Eileanan Siar
- Cover
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
How the job changes by surface
Communal areas
Communal entrances, stairwells and corridors have joints at door frames, screens, skirting and floor edges. Tidy, sound joints keep them looking cared for.
External movement joints
Movement joints are cleaned out, backed with rod and resealed with a sealant of the right movement class.
Block-wide mastic in Sandwick
Sandwick sits close to the coast, within about 1 mile. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first. Being in the west of Scotland, Sandwick gets more rain than eastern areas. The weather side of a block usually needs attention first. We plan block programmes with the forecast in mind.
If you own or manage units on a site such as Parkend Industrial Estate (0.5 miles south-east of Sandwick), failed mastic on frames, door surrounds and external joints can be dealt with unit by unit.
Sandwick is about 1 mile south-east of Stornoway, in Na h-Eileanan Siar. Commercial clients in Sandwick use us for work on mastic joints. Sandwick is one of 87 places in Na h-Eileanan Siar on our list for mastic joints.
We take on mastic joints across the HS1 and HS2 postcode area, for business premises of every kind. We cover commercial and managed buildings on Stoneyfield, East Street and Olivers Brae and the roads nearby. Just outside Sandwick, we also work in Plasterfield (1 mile north), Sanndabhaig (1 mile east), Steinis (1 mile north), Stornoway (1 mile north-west) and Branahuie (1 mile east). For island and remote sites, we plan travel and materials carefully, so include the location in your enquiry.
Near you in Sandwick
A little further out are Western Isles Hospital (1.5 miles north-west) and Lewis Loom Centre (1.3 miles west). Open spaces near Sandwick include Loch Àirigh na Lic.
What we’re called out for in Sandwick
Much failed sealant was laid on dirty, dusty or damp surfaces. Without clean, sound faces and a primer where the product needs one, the bead peels off one side.
If one of these sounds familiar, it’s time for a closer look:
- No planned programme for sealant
- Open joints in brickwork or panels
- Communal area joints that look neglected
- Old repairs sealed over failed mastic
Trustees of buildings like Stornoway High Church can bring frame and external mastic into a planned maintenance list.
Before you book anyone
- What level of public liability insurance do they hold?
- What site paperwork they can supply
- Is the sealant right for the movement and the substrate?
- Whether old or failed sealant will be cut out, not overlaid
Our process
We begin with a short walk round with whoever looks after the building, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. Where we can, we combine work around Sandwick with other jobs nearby. Tell us how flexible your dates are.
- A building-by-building inspection lists the failed joints.
- You get a fixed quote, per block or for the whole programme.
- Dates and areas are agreed so occupiers can be told.
- Old mastic is removed and the joint faces prepared.
- Joints are resealed and tooled.
- We check the finished work and confirm the guarantee.
Preparing the site
- Let building users know which areas are affected
- Tell us your opening times and when work is allowed
- Point out any areas we must not close
Getting a fixed quote
Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. Smaller jobs need nothing more than photographs and a few notes.
Read more
When something else is needed
Honesty saves time and money. New sealant won’t cure:
- Cracked or crumbling render, brick or stone at the joint edges (we’ll tell you if so)
- Water coming in from the roof or rainwater goods
- Broken glass or failed sealed units
If in doubt, give us a call on 01277 525 020 or send photos by email and we will say what we think.
Surfaces we seal
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- External wall and movement joints
- Communal kitchens and washrooms
- Balcony and threshold joints
- Communal entrances and stairwells
Your questions answered
Do you work on the island where Sandwick is?
Yes. Islands are part of our area, Sandwick included. We plan island jobs around the ferry and the forecast, and bring everything the job needs on the first crossing.
Will you take on work at estates like Parkend Industrial Estate, close to Sandwick?
Yes. We cover Sandwick and the area around it, including industrial estates, business parks and retail parks such as Parkend Industrial Estate. A few photographs and the unit address let us price the work.
What guarantee do you give on resealing?
Every building we reseal has a 12-month guarantee. It covers our workmanship, not later building movement, damage or frame failures.
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 will confirm the approach in the quote.
Can weather delay the job?
Outside, yes. The joint has to be dry and within the product’s temperature range, so frost, rain or cold mornings can delay outside work. Internal work is rarely affected.
Will you come and look before quoting?
Many jobs can be quoted from photographs, drawings or a joint schedule. If the job needs a look first, we’ll arrange a visit.
Do you do block-wide mastic programmes?
Block-wide and estate programmes are common. You get a fixed quote per building or for the whole job.
Why deal with it now?
Piecemeal repairs over the years often leave mismatched sealant. Resealing a whole building gives a consistent finish and one 12-month guarantee. In Scotland, wind-driven rain finds a failed joint quickly, and for a smaller place like Sandwick, a repair visit takes planning, so it’s better to act early.
There’s no price list, because the scope varies so much from one building to the next. Call for a quote and we will price your job on its own details.
Why clients in Sandwick choose us
- Workmanship guaranteed for 12 months
- Our applicators hold CSCS cards
- Specification-led, product-correct work
- CHAS accredited contractor
Read our cost guide or how we’re accredited.
Aftercare for building managers
Regular inspection catches problems early. Specifically:
- Make it easy for occupiers to report draughts
- Protect low-level joints in entrances
- List the paperwork your organisation requires when you send details
- Have the asbestos survey to hand for older buildings
Log the date and extent of the resealing for each block. That makes future programmes easier to plan and shows what was done.
Failed mastic often goes unnoticed until heavy rain finds it. Acting at the first signs keeps it a straightforward reseal and saves internal repairs.