Walls construction mastic
Mastic packages for new-build and refurbishment projects in Walls and across the Shetland Islands. CHAS accredited and fully insured, with a 12-month guarantee.
- Missed perimeter joints on a new elevation
- Frame gaps too wide for sealant alone
- A mastic package split between trades with no clear owner
Construction mastic for businesses in Walls
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Construction mastic for commercial buildings in Walls
External mastic depends on the weather in a way most internal trades don’t. Each sealant has a temperature range, and damp, frost or condensation on frames stops work. Internal areas can usually carry on while the outside waits. Most enquiries involve sanitary sealant damaged by following trades and mastic snags holding up handover, on floor and skirting junctions, internal decorators’ caulk and window and door perimeters. A single leaking joint is often how a building in Walls first comes to us: we look at the rest while we’re there and tell you what we find.
Sites near smaller places like Walls can mean longer travel, so the mastic is planned with as few trips as the job allows. Clear drawings, a programme and photos let us bring the right sealants, primers and backing rod first time.
Building owners and contractors get the same cover: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.
- Location
- Walls (ZE2)
- Wider area
- Shetland Islands
- Cover
- 12 months on every job
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Page updated
- 3 November 2026
Different surfaces, different methods
Snagging before handover
Snags usually come from damage by following trades, missed joints or poor earlier work. We price snagging as part of the package or as a separate visit.
Internal decorators’ caulk
Acrylic caulk fills internal gaps around trims, boards and frames ahead of decorating. It’s for gaps that stay still and get painted.
Leave it or put it right?
A quick bead over a damaged joint can get an area past inspection, but it won’t last. New sealant laid on old or dirty sealant has nothing to bond to, and the defect comes back after handover. We cut out and redo the joint properly. Around smaller places like Walls, halls, stores and seasonal buildings may not be checked often, so a failed joint has time to cause damage. Early resealing prevents it.
A quote for mastic packages depends on quantities, condition and access. Ask us for a fixed quote.
Why choose Mastic Doctor in Walls
- A Constructionline member, so easy to vet
- Colours confirmed for the specified product
- Health and safety: CHAS accredited
- Clear, fixed quotes
Take a look at our cost guide and our accreditations and insurance.
Owners, agents and contractors
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. Keys, access and contacts can be agreed in advance.
Maintenance after handover
A few simple habits keep the new joints working:
- Use the product the specification names
- Don’t schedule sealing before decorators and flooring are done
- Flag uneven or tapered frame gaps early
- Plan external elevations with the weather in mind
Our 12-month guarantee covers the workmanship from sign-off. The guarantee covers how we sealed, not later damage by other trades.
A missed perimeter seal on one window can wet the reveal and the plaster inside. That usually means redoing finishes in a completed area and possibly a delayed handover. A check of every frame before decorators start is worth the time.
Sites and facades in and around Walls
With the shore within about 1 mile, Walls counts as a coastal location. On a coastal site, facade and perimeter joints face driven rain and, closer to the beach, salt, which puts weight on correct joint sizing, priming and a sealant suited to the exposure. Being on an island, Walls means planning around ferry times as well as the weather. We need drawings and a programme early so materials come on the right crossing.
A facade joint near Walls lasts when width, depth and backing are right, not just the finish. For contractors building in or near Walls, we seal to the drawings, the specification and the programme.
Walls is in the Shetland Islands. Our applicators travel to Walls for work on mastic packages, handled exactly as we handle every other area. Walls is one of 63 places in the Shetland Islands on our list for mastic packages.
Work on mastic packages is covered throughout ZE2, for business premises of every kind. Buildings on New Road, Vagaland and Pier Road are within our area. 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). Further afield, our area takes in Lerwick (15 miles east), Sound (15 miles south-east), Scalloway (12 miles south-east) and Brae (14 miles north-east). For island and remote sites, we plan travel and materials carefully.
Landmarks near Walls
The countryside around Walls includes Loch of Bardister and Ward of Culswick.
What else we do in Walls
Your questions answered
Do you work on the island where Walls is?
Yes. Islands are part of our area, Walls included. We group island work where we can and plan around the crossings.
Can you work to our programme on a site in or near Walls?
Yes, we work to the programme and the sequence the site sets. We are CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Can staff carry on working while you’re here?
Yes, as long as we plan it. We agree a sequence with your contact so just one area at a time is disrupted.
Will you just go over the old sealant?
No, never. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.
How do I request a quote?
It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photographs and a postcode.
Can the sealant be colour-matched?
In many cases, yes. Sealants are made in a wide range of standard colours, and matching to RAL references or nearby finishes is commonly requested. We confirm what’s available for the specified product when we quote.
When can you be on site?
The office is staffed Monday to Friday, from 8am until 5pm. Tell us your site hours and access windows and the work will be fitted around them.
How a job runs
Working in a building that stays open takes some planning. The work area is signed and kept contained, keep walkways clear and move on in phases so staff and visitors can carry on around us. For a building near Walls, directions, keys and a contact on the day are worth sorting early. We’ll confirm the plan with the fixed quote.
- We start with the drawings, specification and programme.
- Quantities are measured and a fixed price returned.
- We agree with the site team which areas come first.
- Each area is sealed when it’s released.
- Every joint is cleaned, set to depth and sealed with the specified product.
- After snagging, the work is handed over under our 12-month guarantee.
What we need from you
- Point out any areas we must not close
- Move anything stored against the joints
- Arrange parking or a loading space
Getting a fixed quote
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. The easiest way is to ring 01277 525 020 or email drawings and photos.
Advice
What we can’t put right
We seal joints; we don’t mend everything behind them. On its own, sealant can’t deal with:
- Frame gaps too wide for sealant, which the installer needs to correct
- Designing joint widths or choosing the specification (that sits with the designer)
- Defective windows, doors or glazing units (the supplier or installer’s job)
Not sure which it is? You can give us a call on 01277 525 020 or email a schedule or drawings and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Sanitary and kitchen joints
- Cladding and panel joints
- Internal decorators’ caulk
- Floor and skirting junctions
- Window and door perimeters
- Brick and block movement joints