Walls mastic sealing
Mastic sealing for building owners, managing agents and housing associations in Walls and across the Shetland Islands. CHAS accredited and fully insured, with a 12-month guarantee.
- Cracked, hardened mastic round windows on a block
- The same joint failures repeated across a portfolio
- Leaks at window and door perimeters
Mastic sealing for businesses in Walls
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Questions we are asked in Walls
Will you travel to Walls on the island?
Yes, Walls is within the area we cover. We work across every Scottish council area. Ferry times and the weather set the plan, so we ask for photographs and a full list first.
Does a coastal location like Walls affect which sealant is used?
It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. We check the specified product suits the exposure and pay close attention to preparation.
How do we ask for a quote?
The quote form is the simplest route, though you can also phone 01277 525 020 or email a schedule or drawings. Photos, drawings or a joint schedule help us quote quickly.
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.
Will you quote for a small job?
We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.
What paperwork can you provide?
Let us know your requirements: tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We are CHAS accredited and a Constructionline member.
How much does the work cost?
Each job is quoted on its own details. To get one, phone 01277 525 020 or email the details over.
Mastic sealing for commercial buildings in Walls
Owners and agents typically inherit a building’s mastic rather than choose it and it slowly wears out: it sits round windows and doors, along external joints and through communal areas. Once it cracks, hardens or comes away, draughts and water find a way in, and occupiers start reporting it. Most enquiries involve open joints in brickwork or panels and cracked, hardened mastic round windows on a block, across communal entrances and stairwells, window and door perimeters on blocks and communal kitchens and washrooms. For commercial sealant work in Walls, you deal with one contact from quote to sign-off, for single jobs and planned programmes alike.
Around smaller places such as Walls, buildings managed by landlords and associations are often small groups of flats, sheltered housing and halls. Exposed walls take Scottish weather hard, and frame mastic shows it first.
Work we carry out in the Shetland Islands comes with a 12-month guarantee. If an installation problem shows up, call the office on 01277 525 020 or email us and we will arrange a return visit.
- Place
- Walls (ZE2)
- Wider area
- Shetland Islands
- Guarantee
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Other services in Walls
When something else is needed
We seal joints; we don’t mend everything behind them. Sealant alone won’t deal with:
- Cracked or crumbling render, brick or stone at the joint edges (we’ll tell you if so)
- Broken glass or failed sealed units
- Asbestos-containing sealant, which we don’t remove
Not sure which it is? You can give us a call on 01277 525 020 or email a schedule or drawings and we will tell you honestly.
Joints and surfaces we work on
- External wall and movement joints
- Communal kitchens and washrooms
- Window and door perimeters on blocks
- Shopfronts below residential blocks
- Balcony and threshold joints
- Communal entrances and stairwells
Why deal with it now?
Sealing over failed mastic looks tidy for a while. It doesn’t bond and normally fails within a short time. Cutting out and resealing properly does it once. In Scotland, wind-driven rain finds a failed joint quickly, and for a smaller place like Walls, a repair visit takes planning, so it’s better to act early.
Quantities, awkward access and phased working all shape the price. So do site requirements such as inductions and permits, along with the time of year for external work.
Why us?
- One phone line for London, the South East and Scotland
- Workmanship guaranteed for 12 months
- Products installed to the manufacturer’s instructions
- A Constructionline member, so easy to vet
See how commercial sealant jobs are priced and how we’re accredited.
Quoting for work in Walls
We price every job individually. The main factors are:
- Phasing around occupants
- Distance, for remote addresses
- Joint width, depth and condition
- How much existing material needs removing
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
Sending details for a quote
A few photographs plus some basic facts will normally do. Please tell us:
- Your programme or deadline
- Where the site is, with the postcode
- Rough lengths or quantities, or drawings if you have them
- Whether the building will be occupied during the work
A handful of photos 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 a schedule or drawings to discuss it first.
Blocks and managed buildings in Walls
Walls 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; plan inspections around that. Walls is in the east of Scotland, which is drier than the west. Cold mornings still limit when outside mastic can go on. Block programmes are built with that in mind
Around Walls, a planned programme renews failed mastic across a building or estate in one go.
Walls is in the Shetland Islands. Any commercial site in Walls is covered, for single jobs and planned programmes alike. We work across 63 places in the Shetland Islands, large and small.
Anyone looking for mastic sealing in ZE2 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Among the streets we cover are New Road, Vagaland and Pier Road. 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). Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so give the site location in your enquiry.
What’s near Walls
For a walk, there’s Loch of Bardister and Ward of Culswick.
On site: what to expect
When we get to site, we sign in, go through any site induction and check how permits are handled. Everything around the joints gets protected before any cutting starts, with the work itself normally taking one or more days per building, depending on the joint lengths and the access. Where we can, we combine work around Walls with other jobs nearby. Let us know if your dates have any give.
- First comes a look at the joints and, for older buildings, the asbestos records.
- A fixed quote covers the joints, products and order of work.
- We strip out the old sealant.
- Joint faces are cleaned, backed and resealed.
- Buildings are completed in turn.
What we need from you
- Move anything stored against the joints
- Tell us which areas need to stay in use
- Send your site hours and access windows
Quotes
Pricing a project or setting a maintenance budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, speak to us on 01277 525 020 or send details through our quote form.
Advice
When to call us in Walls
Previous repairs often sealed new mastic over old. New silicone has nothing to grip on old silicone and the repair soon fails.
What tends to prompt an enquiry:
- Worn sealant at communal door frames
- Mastic failing across several blocks on an estate
- Cracked, hardened mastic round windows on a block
- Draught complaints from residents or tenants
Near Walls, we review each elevation first so the quote covers what actually needs doing.
Before you book anyone
- Will RAMS and insurance details be available?
- How the joint faces will be prepared and primed
- How the existing material will be dealt with
- What the guarantee covers, and for how long
Site staff or a sealant specialist?
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.
General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class.