Aberdeen · Scotland
Window & door mastic in Northfield, Aberdeen
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Northfield. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Mastic that’s falling out in pieces
- Water coming in at the bottom corners of a door
- Whistling draughts around closed windows
How we handle window mastic in Northfield
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We are ARBOMaster approved and fully insured, and every job is covered by a 12-month guarantee. If you have mastic that has split away from the wall and gaps where the sill meets the wall, we can put it right, on timber windows & doors, composite doors and patio & French doors alike.
Scotland’s cities are full of stone-built tenements and terraces, in sandstone or granite. Stone needs a sealant that suits it, which normally means a neutral-cure product or a traditional sand mastic rather than an acetoxy silicone.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Location
- Northfield (AB16, AB21)
- Region
- Aberdeen
- Cover
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Frames and glazing around Northfield
Under the Tenements (Scotland) Act 2004, shared parts of a tenement, such as the roof and outside walls, are looked after by the owners together, often through a property factor. Windows generally belong to the flat, but the title deeds have the final say. 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 Aberdeen station, renewing tired window mastic between tenants heads off draught and damp complaints. For site and facilities teams at buildings such as Northfield Academy, larger buildings have plenty of frames, and the mastic around each one ages.
Northfield is about 2 miles north-west of Aberdeen, in Aberdeen. Northfield gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Aberdeen coverage runs to 63 places, Northfield among them.
Our applicators cover all of the AB16 and AB21 postcode area for window mastic and the streets around it. Local streets include Tay Road, Quarry Road and Deveron Road. If you are just outside Northfield, we cover Cummings Park (1 mile east), Mastrick (1 mile south), Bucksburn (1 mile north-west), Summerhill (1 mile south) and Cornhill (1 mile south-east). Larger places within reach include Ferryhill (3 miles south-east), New Aberdeen (3 miles south-east), Dyce (3 miles north-west), Portlethen (7 miles south), Cults (3 miles south) and Braeside (3 miles south).
What’s near Northfield
In Northfield, that means homes and buildings near Stewart Park and Bucksburn Academy, among other places. Northfield’s nearest station is Aberdeen station, about 2.9 miles south-east. Nearby you will also find Mar's Castle (2.7 miles east) and Gordon Highlanders Museum (2.1 miles south). The countryside around Northfield includes Rubislaw Quarry and Gallows Hill.
Places near Northfield
Also in Northfield
What we cannot put right
In fairness, there are a few things sealant will not fix:
- Worn gaskets, brush seals or a door that has dropped
- A sash or casement that will not close properly
- Damp problems in the wall away from the window
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think before booking.
What we seal
- Timber windows & doors
- Composite doors
- Patio & French doors
- Window sills
- Aluminium frames
- uPVC windows
When to call us in Northfield
Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. A sealant that cannot keep up eventually tears.
The most common problems we see are:
- Draughts coming in around windows and doors
- Untidy mastic left by window fitters
- Cracked or shrunken mastic around the frame
- A bead that does not match the frame
Historic houses such as Friendville, about 2.5 miles south-east, show how far back building around Northfield goes, and older homes nearby need a sealant that suits their walls.
Questions to ask before you book
- Are they insured?
- When the joint can take water or movement
- Whether VAT is included
- What happens if the job turns out different
The process
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and tidy away. It normally takes a few hours for a few frames, or a day or more for a whole house. In a Scottish city, a lot of jobs are in tenement flats, up a common stair from a shared close. For a job in Northfield, tell us the floor, how the door entry system works and where we can park nearby.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Let us know if you’ve seen damp or leaks
- Move anything stored near the joints
- Tell us about any previous sealing or DIY attempts
How to get a quote
For window mastic in Northfield, email us at info@mrmastic.co.uk. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Advice
Your questions about window mastic in Northfield
Can you help a landlord with a rental near Aberdeen station?
Yes, rental work is part of what we do. Just email us at info@mrmastic.co.uk and tell us about the property, and we will send you a clear quote.
Do you cover Northfield for window mastic?
Yes, Northfield is within the area we cover. We work across all of Scotland. You can email us at info@mrmastic.co.uk and tell us what needs doing.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Where are you based?
Our base is Crawley. Our area covers South East England, London and Scotland.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all.
How long should I leave it?
That depends on the sealant used, so please follow the time we give you.
Do you have insurance?
Yes. We are fully insured.
How long will my window job take?
A handful of frames is a short visit. We confirm the timing with your quote.
Should I try it myself first?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
Landlords, agents and businesses in Northfield
We also work for property managers and facilities teams in Northfield and across Aberdeen. Several sites can go on one quote, and we are fully insured.
If you manage several properties in or around Northfield, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Surface by surface
Window sills
Masonry sills can have joints where water gets in, and the joint under the frame can let rain run behind. Those are sealed with a product suited to stone or concrete.
Patio & French doors
Patio and French doors have the longest joints on most houses. The threshold and the bottom corners take the most water, so we pay close attention there.
Why act early in Northfield
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. A reseal is a much smaller job. In a Scottish city tenement, failed sealant affects more than one flat: a leak can come through the ceiling below, and gaps in shared walls or fire-rated joints matter to every flat.
A failed joint rarely gets cheaper to fix by waiting. If you are not sure whether it needs doing, send an email to info@mrmastic.co.uk and we’ll give you an honest view and a quote.
Why book with us
- A 12-month guarantee on all work
- 20+ years of sealant experience
- We agree the colour with you first
- Rated 4.9 stars on Google
See our cost guide and customer reviews.