Aberdeenshire · Scotland
New Deer Window Mastic
Window mastic in New Deer from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Whistling draughts around closed windows
- Old mastic that has gone black or come away
- Untidy mastic left by window fitters
Window mastic in New Deer
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. If you are dealing with mastic that’s falling out in pieces and sealant in the wrong colour for the frame, we can help, on uPVC windows, window sills and composite doors alike.
Many older Scottish homes still have timber windows set into stone walls. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
Each job carries a 12-month guarantee, whatever its size.
- Where
- New Deer (AB53)
- Region
- Aberdeenshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Frames and glazing around New Deer
Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with 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.
Around New Deer, as everywhere, window mastic is only as good as the preparation behind it.
New Deer is about 13 miles south-west of Fraserburgh, in Aberdeenshire. Across the AB53 area, we cover window mastic for homes and businesses. New Deer is one of 161 towns and villages in Aberdeenshire we cover for window mastic. You can also see our page for Aberdeen, roughly 25 miles from New Deer.
Here we cover the AB53 postcode area for window mastic. You will find streets such as Main Street, High Street and Fordyce Avenue, all of which we cover. We also cover Turfhill (1 mile west), Maud (2 miles east), Auchnagatt (4 miles south-east), New Pitsligo (5 miles north) and Cuminestown (6 miles west). We also work in nearby towns such as Peterhead (15 miles east), Fraserburgh (13 miles north-east), Ellon (11 miles south-east), Turriff (10 miles west), Roanheads (15 miles east) and Clerkhill (15 miles east). If you are somewhere remote, a little more planning is needed, so mention it when you ask for a quote.
Local landmarks in New Deer
Well-known places in the area include Maud Hospital (2.5 miles east) and Maud Junction railway station (2.5 miles east).
What we do, step by step
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. After that, the work takes most of a day for a typical house, less for a few frames. Somewhere like New Deer may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- We fit backing rod in deep gaps so the sealant is the right depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
Before we arrive
- Move anything stored near the joints
- Try not to wet indoor joints just before the visit
- Let us know if you’ve seen damp or leaks
Getting a quote
If you’re in New Deer and need window mastic, drop us a line at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you’ll get a clear quote before work begins.
Read more
Why act early in New Deer
The work is quick compared with the damage it prevents: it takes most of a day for a typical house, less for a few frames. Leave it until water is coming in and you may need plastering and decorating as well. Around New Deer, water from a failed joint in an older stone home can soak into timber and plaster, which is a far bigger job than the sealant.
Instead of a standard rate, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What you get with us
- Full insurance on every job
- White, clear, grey or coloured to suit, where the product allows
- 20+ years of sealant experience
- Neat joints and a tidy finish
See our cost guide and what customers say.
Also near New Deer
Also in New Deer
Landlord and commercial work in New Deer
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Your questions about window mastic in New Deer
Is window mastic in New Deer guaranteed?
All our work, in New Deer and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
Can you do window mastic in New Deer?
Yes. Our work covers the whole of Scotland, and New Deer is part of that. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing.
Can you do upstairs windows?
Yes, in most cases. We plan safe access before the job.
Is it OK to seal over old sealant?
No. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
What does window mastic cost?
It depends on the job, so we quote each one individually. To get one, drop us a line at info@mrmastic.co.uk with a short description of the job.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
What do you need from me for a quote?
Tell us what needs doing and where, with photos by email if possible. If we need more, we will ask.
Can you quote for more than one area?
Of course. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
What we cannot put right
It helps to know what we can’t do too:
- Soft or decayed wood in the frame
- Damp coming through the wall itself rather than the frame joint
- A failed sealed unit that has misted up
If you’re not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer before you book.
Surfaces we seal
- Aluminium frames
- Composite doors
- Patio & French doors
- Window sills
- uPVC windows
- Timber windows & doors
Signs you need window mastic in New Deer
Water runs down the glass onto the sill, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
It’s worth asking for a quote if you see:
- Damp patches on the reveal after heavy rain
- Mastic that’s falling out in pieces
- Untidy mastic left by window fitters
- Draughty joints inside around the window
For an older house near a landmark such as New Deer Parish Church, the joint between an old wall and a newer frame is generally the first place rain gets in.
Comparing quotes
- What product goes in the joint
- Whether they seal over old material or remove it
- When the joint can take water or movement
- Which colour the sealant will be
What affects the quote in New Deer
The price is agreed before any work begins. It’s based on:
- Mould in or behind the old joints
- Whether the work is at height
- Working hours on commercial sites
- The size of the job
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, email us at info@mrmastic.co.uk for an honest opinion and a quote.
What we need to know
You don’t need to know the technical terms. Just tell us:
- Where the job is, and your postcode
- The type of property
- What’s wrong with the joints now
- A few photos by email, if you can
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
DIY sealant or a professional job?
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
The difference is mostly in the preparation and the 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.