Midlothian · Scotland
North Middleton Window Mastic
Mastic around window and door frames, sills and patio doors for homeowners, landlords and businesses in North Middleton. Fully insured, ARBOMaster approved and guaranteed for a year.
- Draughts coming in around windows and doors
- Gaps left after new windows were fitted
- Gaps between the frame and the inside reveal
What window mastic looks like in North Middleton
Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
Letting a property close to Gorebridge station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
North Middleton is about 5 miles south-east of Bonnyrigg, in Midlothian. If you need window mastic in North Middleton, please drop us a line at info@mrmastic.co.uk for a quick quote. We’re based in Crawley and cover Midlothian. Our area takes in 33 places across Midlothian, from the larger towns to small villages. There’s also a page for Edinburgh, about 11 miles away.
We cover every part of the EH23 postcode area for window mastic. You will find streets such as Borthwick Castle Place, Cleuch Road and Borthwick Castle Terrace, all of which we cover. If you’re just outside North Middleton, we cover Arniston (1 mile north-west), Birkenside (1 mile north-west), Gorebridge (2 miles north-west), Carrington (3 miles west) and Gowkshill (3 miles north-west). Within a short drive, we also cover Bonnyrigg (5 miles north-west), Dalkeith (5 miles north), Penicuik (8 miles west), Loanhead (7 miles north-west), Newtongrange (4 miles north-west) and Shawfair (8 miles north).
Around North Middleton
North Middleton’s nearest station is Gorebridge station, roughly 1.6 miles north-west. Nearby you’ll also find Catcune Castle (1 mile north-west) and Midlothian Community Hospital (4.9 miles north-west). Open spaces near North Middleton include Edgelaw Reservoir.
About our window mastic in North Middleton
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through. If the draught is through the window seals instead, we’ll tell you. Common call-outs are for rushed sealant from a window installation and gaps between the frame and the inside reveal, on timber windows & doors, aluminium frames and patio & French doors.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain.
There’s a 12-month guarantee on every job, whatever its size.
- Location
- North Middleton (EH23)
- Region
- Midlothian
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
How the visit works
You don’t need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the job takes most of a day for a typical house, less for a few frames for a typical job. In smaller Scottish places, parking is usually less of an issue than access and distance. Let us know how to find you and how to reach the joints, and the visit is planned around that.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Try not to wet indoor joints just before the visit
- Mention any sign-in or site rules at work premises
How to 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. We will send you a clear quote before any work starts.
Read more
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
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.
Why it’s worth doing now in North Middleton
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. Resealing now is a small job by comparison. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please email us at info@mrmastic.co.uk and we will talk you through it.
Why choose Mr Mastic in North Middleton
- Experience in homes, commercial sites and hotels
- Rated 4.9 stars on Google
- Every job guaranteed for a year
- We agree the colour with you first
Read how sealant jobs are priced and customer reviews.
North Middleton questions
Do you cover North Middleton for window mastic?
Yes, North Middleton is within the area we cover. Our work covers the whole of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job, and we’ll send you a clear quote.
Will you come out to North Middleton?
Yes. North Middleton is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
Can new sealant go over the old?
No, and we never do. 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.
How long does it take to reseal the windows on a house?
A few frames take a few hours. We confirm the timing with your quote.
Can you quote for more than one area?
Yes. Just list everything you need and you will get one quote.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Ventilation helps.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us.
For landlords and businesses
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Nearby places to North Middleton
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Do you need window mastic in North Middleton?
Mastic ages in the weather. Sunlight dries the surface out, until it loses its stretch and starts to crack.
Signs it’s time to call us include:
- Hard, cracked sealant around windows
- Gaps left after new windows were fitted
- Black, perished sealant on frames
- Draughts coming in around windows and doors
For an older house near a landmark such as Borthwick Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What to look for in a quote
- What happens if they find a problem under the old sealant
- How much experience the applicator has
- What product goes in the joint
- Whether you can choose the colour
Different surfaces, different methods
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We will tell you which suits your home.
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Repaint timber before it’s bare
- Keep jet washers away from the mastic
- Clear any debris from frame drain holes
- Use gentle cleaners on frames and sealant
Try not to touch the new joint while it cures, for as long as we advise. Keep jet washers away from the frames.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and a cold room gets colder. A new joint closes it up.