Highland · Scotland
Sand Mastic in Haster
Professional sand mastic in and around Haster, with every bit of old sealant taken out first and a 12-month guarantee.
- Wind and rain getting in round a sash window
- Modern sealant on a period surround
- Cement or filler used on old window joints that has cracked
Sand mastic for homes and businesses in Haster
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. If you are dealing with open joints round the window box and old cement repairs round a window that have failed, we can help, on tenement windows, stone surrounds and timber door frames alike.
Mastic can only go onto a dry joint, so outside work in Haster depends on the weather. Let us know about access to every frame, including any upstairs.
Every job is covered by our 12-month guarantee, wherever you are in Highland.
- Place
- Haster (KW1)
- Wider area
- Highland
- Guarantee
- A year, on every job
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
How the job changes by surface
Brick reveals
Sand mastic is also used where timber frames meet brick. It suits older brickwork.
Stone surrounds
We take care not to mark the stone when the old mastic comes out.
Also in Haster
Aftercare tips
Good habits help new joints last longer. A few tips:
- Clear gutters so water doesn’t pour onto the windows
- Ask the planning authority about consent for listed or conservation-area homes
- Plan mastic work ahead of painting
- Check the mastic when you check the paintwork
Keep gutters and sills clear so water runs away from the surround. Water sitting against the mastic shortens its life.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.
Windows and doors in Haster
Haster is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
If you look after a building such as Wick High School, the mastic around its windows and doors needs looking after like any other building’s.
Haster is about 17 miles south-east of Thurso, in Highland. Homes, rented property, offices and hotels in Haster is covered for sand mastic, old or new, large or small. The work is guaranteed for a year. Our Highland coverage runs to 253 places, Haster among them.
Every address in KW1 is covered for sand mastic, from the main roads to the quietest streets. You will find streets such as Fountain Square and Tannach Road, and we cover them all. Nearby, we also carry out sand mastic in Reiss (2 miles north), Wick (3 miles east), Whiterow (3 miles south-east), Ackergillshore (3 miles north-east) and Staxigoe (4 miles east). Island and remote addresses take a little more planning, so please mention your location when you email us at info@mrmastic.co.uk.
Near you in Haster
The nearest railway station is Wick station, about 2.1 miles east. Well-known places in the area include Wick Town and County Hospital (2.3 miles east) and Castle of Old Wick (3.1 miles south-east). Open spaces near Haster include Loch Hempriggs.
How we quote for sand mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How many areas need sealing
- Which sealant suits the joint
- Whether the work is at height
- The amount of work
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will go through it with you.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- The problem you’ve noticed
- The type of property
- How many joints, rooms or windows are involved
- How we’d reach the joints
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job, and we’ll take it from there.
Signs you need sand mastic in Haster
Shallow joints are a common cause. Mastic that is too thin cracks and drops out so we make sure the new mastic is the right thickness.
Most people get in touch after spotting something like this:
- Weathered mastic on the most exposed windows
- Mastic that needs renewing before redecorating
- Mastic dropping out of the joint
- Open joints round the window box
If you let a flat or house near Wick station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
What to look for in a quote
- What the quote includes, VAT included or not
- Whether they’re fully insured
- Whether the sealant suits the joint
- Who turns up on the day
The process
There’s no need to move everything out before we come, just the space around the work. Everything nearby is protected, and the job takes anything from a few hours to a full day, depending on how many windows in most cases. Somewhere like Haster may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
How to prepare
- Mention any parking rules near the property
- Move anything stored near the joints
- Mention any tricky access
Getting a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Read more
Landlords, agents and businesses in Haster
Landlords and letting agents in Haster can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can go on one quote.
Questions from Haster
Will you come out to Haster?
Yes, we do. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Does living near the coast affect sand mastic in Haster?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Is the work guaranteed?
Every job comes with our one-year guarantee.
What does sand mastic cost?
Every job is different, so each one gets its own quote. To get one, drop us a line at info@mrmastic.co.uk and let us know what needs doing and where.
Are you fully insured?
Yes. Mr Mastic is fully insured.
Do you do commercial work?
Yes. We can plan bigger jobs in stages.
Which products do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
How long does sand mastic take?
That depends on how much there is to do, but as a guide it takes a few hours for a single window, longer for several. We will give you a better idea when we quote.
When it isn’t the sealant
New sealant cannot fix everything, and we’d rather say so up front. Sealant will not put right:
- Whether work needs listed building consent
- Putty and glazing repairs
- Sashes that rattle, stick or will not open
If you are not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer before booking.
Surfaces we seal
- Period & listed homes
- Timber door frames
- Tenement windows
- Sash and case windows
- Stone surrounds
- Brick reveals