Scottish Borders · Scotland
Gattonside Window Mastic
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Gattonside. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Black, perished sealant on frames
- Damp patches on the reveal after heavy rain
- Cracked internal joints between frame and plaster
What happens on the day
Every visit runs the same way: we look at the joints together, protect the area around them, do the work and tidy away. It usually takes a few hours for a handful of frames, longer for a whole house. Around Gattonside, distance and access matter more than parking. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Every joint is checked before we leave.
Getting ready for the visit
- Mention any parking rules near the property
- Where the joints are inside, avoid wetting them before we arrive
- Mention if the joints have been sealed before
Getting a quote
To get a quote, email us at info@mrmastic.co.uk and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
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Window mastic for homes and businesses in Gattonside
Whether it’s one leaking patio door or every frame on the house, you’ll get a clear quote before we start. Just email us at info@mrmastic.co.uk and tell us how many frames there are and how they’re reached. Typical jobs include rushed sealant from a window installation and cracked sealant at the sill ends, on aluminium frames, window sills and uPVC windows.
Many older Scottish homes still have timber windows set into stone walls. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
There’s a 12-month guarantee on every job.
- Where
- Gattonside (TD6)
- Wider area
- Scottish Borders
- Cover
- One year on every job
- Quote
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
For landlords and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
How we quote for window mastic
Your quote is based on your job. We take into account:
- Any working-time requirements on site
- Whether the work is at height
- How many areas need sealing
- The size of the job
The cost depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before work begins.
Helping us quote
To make quoting easier, please include:
- Where the property is
- The type of property
- Access, such as stairs, a lift or height
- Any previous sealing or DIY work
For window mastic in Gattonside, send an email to info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Gattonside questions
Is Gattonside in your area for window mastic?
Yes. We work across all of Scotland, and Gattonside is part of that. You can email us at info@mrmastic.co.uk and tell us what needs doing.
Do you cover smaller places like Gattonside?
Yes. Gattonside is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Do you have insurance?
Yes. We’re fully insured.
Can you do several jobs on one visit?
Yes. Just list everything you need and you will get one quote.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
What does window mastic cost?
Size, access and the old material all affect the cost. Call for a quick quote.
Is there any odour?
Some sealants have a smell while they cure. Opening a window helps.
How the job changes by surface
Composite doors
An exposed front door gets wind-driven rain. We pay most attention there.
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
Looking after it afterwards
Simple care keeps the joints in good condition. Our advice:
- Keep paint off silicone joints
- Ventilate rooms so frames do not stay wet inside
- Clear any debris from frame drain holes
- Avoid blasting the frames with a pressure washer
Keep sill grooves and drainage slots clear, so water can run away instead of sitting against the joint.
Signs to watch for: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
Towns and villages near Gattonside
More services for Gattonside
What we’re called out for in Gattonside
Some failures date back to when the windows were fitted. Mastic laid onto dusty, damp or crumbling surfaces didn’t grip properly, and it lets go sooner than it should.
The problems people normally mention when they call include:
- Cracked internal joints between frame and plaster
- Gaps where the sill meets the wall
- Rain getting in at the frame or under the sill
- Draughts coming in around windows and doors
Around Gattonside, as everywhere, window mastic is only as good as the preparation behind it.
What your quote should include
- Whether they seal over old material or remove it
- How much experience the applicator has
- How long the guarantee is
- Is VAT in the price?
Frames and glazing around Gattonside
Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
For landlords with property near Tweedbank station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Gattonside is about 3 miles east of Galashiels, in the Scottish Borders. If you need window mastic in Gattonside, please send an email to info@mrmastic.co.uk for a quick quote. We cover the Scottish Borders from our Crawley base. Across the Scottish Borders, we cover 89 places, and Gattonside is one of them. Our Edinburgh page covers work nearby (30 miles or so).
Here we cover the TD6 postcode area for window mastic. Whether your property is on The Loan, Priors Road and Monkswood or anywhere close by, we can help. Other places close to Gattonside include Melrose (1 mile south), Darnick (1 mile south-west), Newstead (1 mile south-east), Tweedbank (2 miles west) and Langlee (2 miles west). We also work in nearby towns such as Galashiels (3 miles west), Hawick (13 miles south), Kelso (11 miles east), Selkirk (6 miles south-west), Jedburgh (11 miles south-east) and Wilton (13 miles south).
Local landmarks in Gattonside
Gattonside’s nearest station is Tweedbank station, about 1.3 miles west. Other landmarks nearby include Melrose Motor Museum (0.5 miles south-east) and Castle Holydean (3 miles south). Green spaces nearby include Eildon Hill North and Bemersyde Moss.