Shetland Islands · Scotland
Hestingott External Mastic
Specialist external mastic for Hestingott: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Water getting into walls through failed joints
- Joints with sealant missing in places
- Movement joints filled with mortar instead of sealant
About our external mastic in Hestingott
We are ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Porous or awkward surfaces are primed where the sealant needs it. If you have rigid filler in a joint that should flex and panel joints letting water in, we can help.
In and around a place like Hestingott, many buildings face open ground and take the full weather. Gutter joints and wall joints take a battering, so they need a sealant that moves with the building.
A one-year guarantee comes as standard, so you’re covered after we’ve gone.

- Location
- Hestingott (ZE3)
- Wider area
- Shetland Islands
- Cover
- One year on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What the job involves on each surface
Joints between dissimilar materials
Wherever two materials meet, they move differently. We seal the joint with a flexible exterior sealant.
Copings and trims
Coping joints that leak let water straight down into the wall. Sealing them early saves the wall below.
What else we do in Hestingott
How it works
Good joint work is mostly preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it usually takes a few hours for a handful of joints, longer for a whole elevation. Outdoor work around Hestingott depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any previous sealing or DIY attempts
- Mention any tricky access
Getting a quote
We quote each job on its own. Just email us at info@mrmastic.co.uk with the details and send photos if you have them.
Read more
Hestingott buildings and the weather
Hestingott is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on movement joints and outside wall joints, especially on the side facing the sea. Island jobs need planning around ferries and the weather, so the more notice, the better.
Homes close to Cross Kirk include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Hestingott is in the Shetland Islands. For external mastic in and around Hestingott, it’s easy to get a quote: please drop us a line at info@mrmastic.co.uk. We’re based in Crawley and cover the Shetland Islands, Hestingott included. Across the Shetland Islands, we cover 63 places, Hestingott among them.
Our applicators cover all of ZE3 for external mastic. We cover properties on Thistle Court and Ninian Drive and the roads around them. We also cover the places around Hestingott: Toab (1 mile south-east), Exnaboe (1 mile east), Scatness (1 mile south), Boddam (2 miles north) and South Scousburgh (3 miles north). For island and remote addresses, a little more planning is needed, so let us know when you get in touch.
Near you in Hestingott
A little further out are Shetland Crofthouse Museum (1.7 miles north-east). Green spaces nearby include Sumburgh Head RSPB reserve and Loch of Huesbreck.
Aftercare tips
Looking after new joints is easy:
- Avoid pressure-washing directly into sealant joints
- Keep water from gutters off the wall
- Check external joints each spring
- Make sure movement joints are not pointed over
Follow the cure time we give you before the joint is knocked or disturbed. The surface skins over quickly, but full cure takes longer.
Gaps, plants or missing sealant in a joint are worth getting looked at. Earlier resealing means a smaller job and a better result.
When something else is needed
We’d rather tell you now than do work that won’t last, so these are the limits:
- Structural movement, which needs a surveyor or engineer
- Cracking across the wall rather than at a joint
- Adding movement joints to masonry that has none
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think before you book.
Joints and surfaces we work on
- Concrete & block
- Façade panels
- Render & cladding joints
- Brickwork movement joints
- Copings & trims
- Joints between brick and frames
Questions from Hestingott
Will you come out to Hestingott?
Yes. Hestingott 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. Just mention lanes, gates or anything else about the route when you book.
Does the coastal weather in Hestingott affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. Then send an email to info@mrmastic.co.uk.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.
Do you seal joints where cladding meets other materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. The colour is chosen to suit.
Why is there a gap in my brick wall?
Most straight vertical gaps in brickwork are movement joints. It gives the wall room to move.
Quotes for external mastic in Hestingott
The price is agreed before any work begins. It’s based on:
- Working hours on commercial sites
- How many rooms, windows or areas are involved
- The amount of work
- Access and height
What you pay reflects the work, not a rough estimate. That is why we ask about the job first and agree the price before starting.
What we need to know
Before you ask for a quote, have a think about:
- Any previous sealing or DIY work
- A few pictures by email, if you can
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
If you are in Hestingott and need external mastic, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Signs you need external mastic in Hestingott
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.
Signs it’s time to call us include:
- Failed sealant between panels on a façade
- Damp patches traced to an open external joint
- Moss and dirt in joints with no sealant left
- Movement joints with cracked, split or missing sealant
In and around Hestingott, as anywhere, good external mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- Whether they’re fully insured
- When the joint can take water or movement
- The length of the guarantee
- What product goes in the joint
