
Construction and new-build mastic in Haster, Highland
Construction mastic in Haster, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Old sealant on a refurbishment that needs stripping before new work
- New external sealant already peeling away
- Oversized or tapered gaps around new frames
Construction mastic across Haster
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Construction mastic for commercial buildings in Haster
We work to the specification and the programme. If a product is named, that’s what goes in. Backing, primer and depth follow what the sealant maker sets out so the detail on the drawing is what ends up on site. If you have frame gaps too wide for sealant alone and frame perimeters left unsealed or poorly sealed, we can help, whatever the surface. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: in Haster, that means joint design, primers and backing rod as standard.
For a site around Haster, we plan the mastic in as few trips as the programme allows. Send drawings, photos and the programme so everything needed arrives on the first day.
The 12-month guarantee covers our workmanship: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Haster (KW1)
- Wider area
- Highland
- Cover
- A 12-month guarantee
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026

Commercial clients in Haster
As a CHAS accredited contractor and Constructionline member, we’re straightforward to vet for your supplier list. Our insurance certificate can be sent along with the quote.
We work for building owners and managing agents on sealant work across single buildings or whole portfolios. One quote can cover more than one site, so there’s one set of paperwork to deal with.
Leave it or put it right?
Refurbishments sometimes budget for new windows when the frames are sound and only the seal has failed. Sound frames often need only a new perimeter seal, which is a much smaller cost. We’ll say so if a frame itself is the problem. Exposed buildings in Scotland take a lot of weather, so it’s worth renewing joints around Haster before they leak.
Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.
Why us?
- Over 20 years of commercial sealing
- CHAS accredited contractor
- One phone line for London, the South East and Scotland
- A fixed quote before work starts
Read what affects the cost or our accreditations and insurance.
More services for Haster
Sites and facades in and around Haster
With the shore within about 3 miles, Haster counts as a coastal location. Schemes this close to the sea see their facade joints tested by wind and rain from the day they’re sealed, so we check the specified product suits the exposure before the first bead. Scotland has its own building regulations, and in Haster warrants come from the local authority verifier. Our job is to seal to that specification.
School extensions, at buildings such as Wick High School, usually run to the summer holidays, mastic included. Extensions at sites like Caithness General Hospital, 2.2 miles east of Haster, usually sit beside working departments, and the mastic follows strict access rules. Units on estates such as Lochshell Business Park, 2 miles north-east of Haster, tend to be reclad and refitted as tenants change, and each job leaves cladding and perimeter joints to seal.
Haster is about 17 miles south-east of Thurso, in Highland. Commercial clients in Haster use us for work on mastic packages. Across Highland, 256 places are covered, Haster among them.
Work on mastic packages is covered throughout KW1, for business premises of every kind. For a building on Fountain Square and Tannach Road or nearby, we can quote for mastic packages. Close to Haster, our area also takes in Reiss (2 miles north), Wick (3 miles east), Whiterow (3 miles south-east), Ackergillshore (3 miles north-east) and Staxigoe (4 miles east). Remote and island addresses take more planning, from travel and ferries to the weather, so give the site location in your enquiry.
What’s near Haster
The nearest railway station is Wick station, about 2.1 miles east of the centre. A little further out are Wick Town and County Hospital (2.3 miles east) and Castle of Old Wick (3.1 miles south-east). Not far away are Loch Hempriggs.
When to bring in a specialist
Certain joints really need a specialist: for example fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong normally costs more in the end than doing them right.
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.
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. Where we can, we combine work around Haster with other jobs nearby, to make the most of each trip. Let us know if your dates have any give.
- Drawings, specification and programme come to us.
- We take off quantities and return a fixed quote.
- The sequence is agreed with the site manager.
- Each area is sealed when it’s released.
- Joints are prepared, backed and sealed to the specification.
- Snags are cleared and the package signed off with our 12-month guarantee.
Before we start on site
- Point out parking and an unloading spot
- Point out any areas we must not close
- Send asbestos survey details if the building is pre-2000
Getting a fixed quote
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we’ll arrange a site visit.
Related advice
Looking after the joints
Problems stay small when the joints are checked regularly. Specifically:
- Keep product details for future maintenance
- Brief the final clean team to avoid blades near sealant
- Put any product change through the designer first
- Keep finished joints away from paint, plaster and scrapers
The package carries our 12-month guarantee for workmanship. Damage by others isn’t a workmanship fault.
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 a delay to handover. Checking perimeters before internal finishes go on avoids it.
FAQs: Haster
Does the sea air around Haster change the choice of sealant?
It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.
Does your area include sites such as Lochshell Business Park, near Haster?
Yes. Our area takes in Haster and its surroundings, with estates and business parks such as Lochshell Business Park included. Photos and a short description are enough for a first look.
Is the mastic package guaranteed?
Each package is backed by a 12-month guarantee. We are also fully insured for public liability.
How do you work with the site programme?
We work to your programme. Share the release dates and we will match our work to them so sealing follows the trades.
Can you come in just for snagging?
Yes, we can. Send the snag list or photos and we will price it.
Can you handle several sites?
Yes. Several buildings can share a single quote, with one point of contact across South East England, Greater London and Scotland.
What accreditations do you hold?
We are CHAS accredited and a Constructionline member, and our applicators hold CSCS cards. We confirm any paperwork you need with the quote.
Honest limits
Before quoting, we check that sealant is the right answer. It won’t put right:
- Defective windows, doors or glazing units (the supplier or installer’s job)
- Joint design decisions that belong to the architect or engineer
- Joints damaged after sign-off by following trades
If you’re not sure, just give us a call on 01277 525 020 or email a schedule or drawings and we’ll give you a straight answer before you book.
Where we work in Haster
- Cladding and panel joints
- Brick and block movement joints
- Window and door perimeters
- Internal decorators’ caulk
- Sanitary and kitchen joints
- Floor and skirting junctions