Mastic Sealing in Thurso
Mastic sealing for building owners, managing agents and housing associations across Thurso, carried out by CSCS-carded applicators. Fully insured and CHAS accredited.
- Old repairs sealed over failed mastic
- The same joint failures repeated across a portfolio
- Draughts at frames across a block
Need mastic sealing in Thurso?
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
Mastic sealing in Thurso, done properly
We diagnose before we prescribe: what has failed, what caused it and whether new sealant will actually solve it. Old mastic is removed entirely, the faces prepared, primer used where the maker specifies it and new sealant tooled in, with backing rod setting the depth where it’s needed. If you’re dealing with patchy repairs in mismatched sealant and the same joint failures repeated across a portfolio, we can put it right. A single leaking joint is often how a building in Thurso first comes to us: we look at the rest while we’re there and tell you what we find.
Owners with several buildings in a town like Thurso can group mastic work into one programme. We move block by block once you’ve told residents what to expect.
Every job we finish is backed by a 12-month workmanship guarantee, in Thurso as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Location
- Thurso (KW14)
- Region
- Highland
- Cover
- 12 months on every job
- Quote
- Quoted before any work starts
- Call
- 01277 525 020
- Last updated
- 3 November 2026
How the job changes by surface
Tenement and older buildings
Older mastic can contain asbestos, so we check the asbestos register or survey first. Suspect material is tested before work continues.
Planned maintenance
How long mastic lasts depends on exposure, movement and the product used. Inspecting joints regularly keeps programmes on track.
Your questions answered
Will you price a mastic programme across our Thurso portfolio?
Yes. Portfolio-wide programmes are a regular request. Send the addresses and photographs and we’ll give a fixed quote.
Does the sea air around Thurso change the choice of sealant?
It can, yes: buildings near the sea take more wind-driven rain, and salt in the air nearer the shore. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.
Is asbestos a concern with old mastic?
In older buildings, old mastic can contain asbestos. We ask for the asbestos register or survey before work starts and suspect material is tested first.
Can people stay in the building while you reseal?
Residents and tenants carry on as normal. We flag any areas that need internal access well before the dates so you can arrange it with occupiers.
Will you just go over the old sealant?
No. Overlaying old sealant is a frequent cause of early failure, so it all comes out first.
How do you reach windows on upper floors?
We talk through access for each building when we quote. Tell us the number of storeys and whether scaffold or other access is planned and we’ll confirm the approach in the quote.
Do you work with property factors and landlords?
We do. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work, and we quote building by building or as a programme.
What happens if it’s left?
Failed perimeter mastic lets cold air in around frames and the windows typically get the blame. Resealing the perimeters is often the simpler fix where the frames themselves are sound. If one joint has failed on a building in Thurso, its neighbours, laid at the same time, may not be far off. Doing them together saves return visits.
No two sites price the same: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
What you get with us
- Joints cleaned back to sound surfaces
- Public liability insurance in place
- RAL and finish matching where the product range allows
- Colours confirmed for the specified product
Read what affects the cost and how we’re accredited.
What we can’t put right
Not every problem is a sealant problem, and we are upfront when that’s the case. It won’t fix:
- Frames that are rotten, warped or broken
- Leaks from above rather than through a joint
- Cracked or crumbling render, brick or stone at the joint edges (we’ll tell you if so)
If you are not sure, just ring 01277 525 020 or email a schedule or drawings and we will give you a straight answer before you book.
Surfaces we seal
- Balcony and threshold joints
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- Shopfronts below residential blocks
- Communal entrances and stairwells
- External wall and movement joints
Frames, entrances and external joints in Thurso
The sea is no more than about 1 mile from Thurso. Sea-facing elevations take driven rain and salt, and their mastic shows it before the sheltered sides do, so it’s worth inspecting those sides more often. Being in the east of Scotland, Thurso gets less rain than the west coast. External mastic still needs a dry joint and the right temperature, and winter mornings can be frosty. Block programmes are built with that in mind
For agents with blocks near Thurso station (less than half a mile south of Thurso), a block-wide mastic programme deals with frames, balconies and entrances in one go. Schools and community buildings such as Thurso High School need frame and external mastic kept sound like any building.
Thurso is in Highland. Commercial clients in Thurso use us for work on mastic joints, as part of our coverage of Highland. 256 places across Highland fall within our area, Thurso among them.
Anyone looking for mastic sealing in KW14 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Sir John's Square, Gerry Square and High Street and the roads nearby. Being close to the A9 and A836, Thurso is easy to get to with materials and equipment. Close to Thurso, our area also takes in Scrabster (2 miles north-west), Glengolly (2 miles south-west), Janetstown (3 miles south-west), Murkle (3 miles east) and Forss (4 miles west). As one of the bigger centres in Highland, Thurso has a broad mix of commercial, public and industrial buildings, and we cover them all. Where a site is remote or on an island, we plan travel and materials carefully.
What’s near Thurso
There’s a railway station in Thurso itself: Thurso station. A little further out are Scrabster Castle (0.7 miles north-west) and Thurso Heritage Museum (0.6 miles north-west).
What sets the cost
Before we quote, we look at:
- Induction, permit and paperwork requirements
- How accessible the joints are
- The size and state of each joint
- The total length or number of joints
What a job costs comes down to the quantity of joints, how much old material needs removing and the access. Call for a fixed quote once you have the details.
What to include in your enquiry
To price the job accurately, we need a clear picture of the site. Useful things to include:
- Asbestos survey details if the building is older
- How the joints are reached, and at what height
- A wide shot and a close-up of the area
- The site address and postcode
Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Share whatever details you have and we’ll fill any gaps with a visit.
What else we do in Thurso
Our process
Tell us your site hours and access windows and we will plan around them. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. In a Scottish town such as Thurso, outside work is planned around the weather and inside work around the occupants. Send photos or drawings and we will quote and plan to suit.
- We inspect the joints, building by building, and record what has failed and why.
- We send a fixed quote that sets out the joints, the products and the programme.
- The sequence and the dates are fixed with you, giving you what you need to notify occupiers.
- 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.
- Finished joints are looked over and the 12-month guarantee confirmed.
Preparing the site
- Tell us which areas need to stay in use
- Have the specification and drawings to hand
- For older buildings, check the asbestos register before work
Ask for a 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 call 01277 525 020 or email the details over.
Advice
General trades versus a specialist
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are where general trades tend to cut corners.
Redoing a failed joint usually costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.