Scottish Borders · Scotland
Sand Mastic in Burnmouth
Sand mastic for Burnmouth, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Wind and rain getting in round a sash window
- Crumbling sand mastic round a window
- Tired mastic found when preparing windows for paint
Why act early in Burnmouth
Before painting the windows, it pays to renew the mastic. Paint over cracked mastic won’t stop the gaps, and the new mastic is traditionally left unpainted. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
Why choose Mr Mastic in Burnmouth
- We leave the area clean and tidy
- Anti-fungal silicone where joints get wet
- A 12-month guarantee on all work
- Approved under the ARBOMaster scheme
Take a look at what affects the cost or our reviews.
About our sand mastic in Burnmouth
Traditional burnt sand mastic blends with stone and brick surrounds. It’s a good fit for period properties, where modern sealant can look out of place. We work on brick reveals, sash and case windows and stone surrounds, and people most often call us about gaps between timber frames and stone or brick and tired mastic found when preparing windows for paint.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- Burnmouth (TD14)
- Region
- Scottish Borders
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Aftercare tips
How long the joints last depends on use and care. Here’s what we suggest:
- Get any rot dealt with first
- Renew mastic before redecorating the windows
- Inspect the joints round the windows every year or so
- Make sure water runs off the sill
Leave the new mastic alone while it firms up. It skins over quickly, but takes longer to harden fully.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
Your questions about sand mastic in Burnmouth
Does the coastal weather in Burnmouth affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do you work for landlords with property near Reston station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear quote.
Can I add another job to the visit?
Of course. Doing several areas at once is normally more efficient.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Do the sealants smell?
It depends on the product. Some products have a noticeable smell, others very little.
Does someone need to be in?
If the work is inside, we need someone to let us in. After that, you can carry on with your day.
Is sand mastic better than silicone for my windows?
Sand mastic generally suits period timber windows best. On modern frames, we’d normally use a flexible sealant.
What exactly is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It’s made with sand and a linseed-oil-based binder.
When it is not the sealant
A few problems are outside what sealant work can do:
- Decayed frames that need repair
- Damaged stone surrounds
- Sashes that need overhauling
Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly before you book.
Surfaces we seal
- Timber door frames
- Sash and case windows
- Stone surrounds
- Tenement windows
- Period & listed homes
- Brick reveals
Different surfaces, different methods
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
Stone surrounds
Sand mastic sits naturally against stone. It finishes to look like part of the surround.
How it works
On the day, there’s very little for you to do. Point us to the joints and we will get on with it. The job generally takes a few hours per window, depending on the condition of the joints, including the tidy-up. For a place like Burnmouth, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic is not too thick.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Mention any parking rules near the property
- Mention any leaks or damp you’ve noticed
- Try not to wet indoor joints just before the visit
How to get a quote
For a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
Advice
Common problems we fix in Burnmouth
Age is the main cause. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
It’s worth asking for a quote if you see:
- Gaps where the frame meets the masonry
- Failed mastic on an exposed elevation
- Mastic round period door frames that has failed
- Crumbling sand mastic round a window
Letting a property close to Reston station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Before you book anyone
- Is the old sealant removed completely?
- Whether you can choose the colour
- What guarantee comes with the work
- Whether VAT is included
Windows and doors in Burnmouth
Burnmouth is close to 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 the mastic around older windows and doors, especially on the side facing the sea. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
In and around Burnmouth, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.
Burnmouth is in the Scottish Borders. Our applicators cover sand mastic for homes and businesses in Burnmouth. Our the Scottish Borders coverage runs to 89 places, Burnmouth among them. Edinburgh is on our list too, about 44 miles from Burnmouth.
We work across TD14 for sand mastic. Whether your property is on Woodbine Grove, Woodbine Drive and Lyall Terrace or anywhere close by, we can help. Neighbouring places we cover for sand mastic include Ayton (2 miles west), Eyemouth (2 miles north), St Abbs (4 miles north-west), Coldingham (4 miles north-west) and Scottish Borders (5 miles north-west).
Local landmarks in Burnmouth
The nearest railway station is Reston station, about 4.6 miles west. Well-known places in the area include Ferney Castle (4.6 miles west) and St. Mary Magdalen's Hospital (5.4 miles south-east). Green spaces nearby include Ayton Hill.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.