Shetland Islands · Scotland
Tripwell Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Tripwell and across the Shetland Islands. Fully insured, ARBOMaster approved and guaranteed for a year.
- Failed mastic on an exposed elevation
- Old cement repairs round a window that have failed
- Crumbling sand mastic round a window
Sand mastic in Tripwell
Sand mastic does not last for ever, leaving gaps round the window. We rake it out and renew it so the surround looks right again. We are often asked to deal with gaps where the frame meets the masonry and draughty sash windows at the surround, on tenement windows, brick reveals and sash and case windows.
In and around a place like Tripwell, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.
A 12-month guarantee comes as standard.
- Place
- Tripwell (ZE2)
- Region
- Shetland Islands
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Quotes for sand mastic in Tripwell
The price is agreed before any work begins. It takes into account:
- How much old sealant there is and how hard it is to remove
- The number and length of the joints
- Access and height
- Mould in or behind the old joints
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Helping us quote
You do not need to know the technical terms. It helps if you can tell us:
- A few photos by email, if you can
- What’s wrong with the joints now
- The address or postcode of the job
- Access, such as stairs, a lift or height
To get a quote, drop us a line at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
Frames and glazing around Tripwell
Tripwell is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.
Around Tripwell, as everywhere, sand mastic is only as good as the preparation behind it. Homes close to Whalsay Parish Church include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Tripwell is about 15 miles north of Lerwick, in the Shetland Islands. We carry out sand mastic for householders, landlords and businesses in Tripwell and the surrounding area, as part of our work across the Shetland Islands. Tripwell is one of 63 places in the Shetland Islands we cover.
All of ZE2 is within our area for sand mastic. That includes homes and businesses on Houll and Tripwell and the roads around them. Neighbouring places we cover for sand mastic include Brough (1 mile north-east), Hamister (1 mile south-west), Huxter (1 mile south), Symbister (1 mile south-west) and Sandwick (2 miles south-west). Remote and island addresses need a little more planning, so please mention your location when you send an email to info@mrmastic.co.uk.
Local landmarks in Tripwell
Open spaces near Tripwell include Setter Hill and Loch of Houll.
Different surfaces, different methods
Period and listed homes
A traditional finish suits a period property.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair so it’s worth checking responsibilities.
Keeping the joints in good condition
So the new joints stay in good condition:
- Clear gutters so water does not pour onto the windows
- Take care around the mastic when scraping paint
- Look over the window mastic once a year
- Find out about consent before window work on a listed home
Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.
An open joint round the box lets weather through. Left, the gap tends to get bigger.
FAQs for Tripwell
Is Tripwell within the area you cover?
Yes. Tripwell is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland, including the islands, where work is planned around ferry crossings. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover Tripwell for sand mastic?
Yes. Our work covers the whole of Scotland, and Tripwell is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we will give you a clear price.
Can I do it myself?
That depends on the joint. High-level, external movement and fire-rated joints are professional jobs, while a short indoor joint may be within reach.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and we’ll quote it together.
Can you replace silicone on a period window with sand mastic?
In most cases. We remove the silicone and clean the joint, then point it with sand mastic.
Can new sealant go over the old?
No, because it fails. We remove every bit of old sealant first, so the new sealant bonds properly.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
Can tenants book the work?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
What happens on the day
On the day, we look over the joints with you first, so you know exactly what we’re doing. Surfaces next to the work are protected before any work starts. Most jobs take a few hours per window, depending on the condition of the joints. Around Tripwell, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
How to prepare
- Keep children and pets away from the work area
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, email us at info@mrmastic.co.uk.
Advice
More services for Tripwell
Can I do it myself?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
What happens if it’s left?
Before painting the windows, it pays to renew the mastic. Paint over cracked mastic will not stop the gaps and traditional guidance is to leave the new mastic unpainted. Out of town in Scotland, exposed walls take a lot of weather, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
The cost depends on the amount of work, how hard the old material is to remove and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
Why us?
- Over 20 years’ experience
- An ARBOMaster approved applicator
- Quality sealants from Arbo and Everbuild
- Old sealant always removed completely
Take a look at our cost guide and our reviews.
What sealant work cannot fix
We will not take on work that will not last, so here’s what sealant cannot put right:
- Broken panes
- Sashes that need overhauling
- Whether work needs listed building consent
If you are not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.
What we seal
- Stone surrounds
- Sash and case windows
- Timber door frames
- Period & listed homes
- Tenement windows
- Brick reveals