Scottish Borders · Scotland
Hawick Window Mastic
Window mastic for Hawick and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Damp patches on the reveal after heavy rain
- Black, perished sealant on frames
- Cracked internal joints between frame and plaster
Window mastic in Hawick, done properly
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that can’t move properly, so deep gaps get backing rod first. That way the new bead bonds to the frame and the wall only. Typical jobs include gaps between the frame and the inside reveal and cracked or shrunken mastic around the frame, on window sills, uPVC windows and composite doors.
In a town like Hawick, plenty of homes have harled (roughcast) walls, and the joint between a frame and rough harling needs a sealant that can grip and flex. A thin bead that hasn’t been worked into the surface soon lets water behind it.
All of our work is guaranteed for twelve months, in Hawick and everywhere else we cover.
- Place
- Hawick (TD9)
- Region
- Scottish Borders
- Cover
- One year on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What we cannot put right
A few problems are outside what sealant work can do:
- A sash or casement that won’t close properly
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Draughts through the window seals rather than the frame
Not sure which it is? You can send an email to info@mrmastic.co.uk and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Aluminium frames
- Patio & French doors
- Composite doors
- uPVC windows
- Timber windows & doors
- Window sills
For landlords and businesses
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Your questions about window mastic in Hawick
What’s the best way to get a price for window mastic in Hawick?
The easiest way is to email us at info@mrmastic.co.uk with a few details of the job. You’ll get a clear, fixed price before any work starts.
Can you do window mastic in Hawick?
Yes, Hawick is within the area we cover. Our work covers the whole of Scotland. Just email us at info@mrmastic.co.uk with a few details of the job.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Ventilation helps.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we’re using and why.
I’m a tenant. Can you help?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
Can new sealant go over the old?
No, it won’t last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
Are you insured?
Yes. We are fully insured.
Where do you work from?
We work from Crawley. Our applicators cover Hawick, along with the rest of our area.
When to call us in Hawick
Sun, frost and rain wear sealant out. Sunlight dries the surface out, until it loses its stretch and starts to crack.
Keep an eye out for any of the following:
- Leaking joints at the ends of sills
- Hard, cracked sealant around windows
- Untidy mastic left by window fitters
- Rain getting in at the frame or under the sill
Harden, about 3.4 miles west, is one of the historic houses in the wider area around Hawick, and older homes nearby need a sealant that suits their walls.
Before booking anyone
- Which sealant they’ll use, and why
- How long the guarantee is
- How much experience the applicator has
- Which colour the sealant will be
What happens on the day
There is not much for you to do on the day. Point us to the joints and we will get on with it. The work itself takes a few hours for a few frames, or a day or more for a whole house from start to finish. In a Scottish town like Hawick, parking is normally straightforward, though older centres can be tighter. For flats, mention the shared stair or door entry system.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
How to prepare
- Let us know about earlier repairs to the joints
- For business premises, tell us about site rules or sign-in
- Let us know about parking restrictions
Get a quote
For a quote, drop us a line 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 we start.
Advice
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Also in Hawick
How we quote for window mastic
Call for a quick quote. The main things that affect it are:
- When we can work, for business premises
- The product the joint needs
- Access and height
- Any mould that needs treating
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please drop us a line at info@mrmastic.co.uk and we’ll talk you through it.
Asking for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Whether it has been sealed before
- The type of property
- Where the property is
- How we’d reach the joints
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Window mastic in Hawick: local notes
Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Managing a site like Hawick High School? Then its window and door frames need their mastic kept sound, just like a home’s.
Hawick is in the Scottish Borders. Our applicators cover window mastic for homes and businesses in Hawick and the surrounding area, as part of our work across the Scottish Borders. Our the Scottish Borders coverage runs to 89 places, and Hawick is one of them. Our Edinburgh page covers work nearby.
Here we cover the TD9 postcode area for window mastic. Window mastic is available to properties on High Street, Drumlanrig Square and Teviot Crescent and the roads around them. Main roads around Hawick include the A7 and A698, which makes travel easy. Neighbouring places we cover for window mastic include Wilton (1 mile west), Stirches (1 mile north-west), Wilton Dean (1 mile west), Burnfoot (1 mile north-east) and Newmill (4 miles south-west). Further out, we also cover Galashiels (13 miles north), Selkirk (9 miles north), Jedburgh (10 miles east), Melrose (12 miles north), Earlston (15 miles north) and Langlee (13 miles north). Hawick is one of the larger places we cover in the Scottish Borders.
Near you in Hawick
Typical jobs here are in homes near The Bourtree pub and the streets around them. Other landmarks nearby include Borders Textile Towerhouse (within half a mile south) and Hawick Community Hospital (under half a mile west). Not far away are Ashkirk Hill and Williestruther Loch.
Different surfaces, different methods
Window sills
Masonry sills can have joints where water gets in, including the one between the sill and the frame above. We seal those with a sealant suited to masonry.
Aluminium frames
Bi-fold and sliding aluminium doors have long frame joints, and the bottom joint sees the most water. Each is cleaned, backed where deep and resealed.