Aberdeenshire · Scotland
Longside Window Mastic
Window mastic across Longside and nearby, with old sealant always removed completely and a one-year guarantee.
- Cracked or shrunken mastic around the frame
- Mastic that’s falling out in pieces
- Whistling draughts around closed windows
Window mastic in Longside
The new joint does not have to be white. We can seal in white, brown, anthracite grey, black or clear, so the line suits the frame instead of standing out. We’re often asked to deal with black, perished sealant on frames and untidy mastic left by window fitters, across timber windows & doors, window sills and patio & French doors.
Outdoor sealant needs a dry surface, so window work around Longside is planned around the weather, and longer journeys are planned in advance. Let us know about access to every frame, including any upstairs.
You are covered for a year from the day we finish. If anything is not right with it, send an email to info@mrmastic.co.uk.
- Place
- Longside (AB42)
- Wider area
- Aberdeenshire
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What happens if it’s left?
A cracked joint around a frame lets rain into the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first.
Why choose Mr Mastic in Longside
- Anti-fungal silicone where joints get wet
- Approved under the ARBOMaster scheme
- Every job guaranteed for a year
- 180+ five-star Google reviews
Take a look at what affects the cost or our reviews.
Frames and glazing around Longside
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 failed outside joints work against that.
In and around Longside, as anywhere, good window mastic starts with a clean, dry, properly prepared joint. For an older house near a landmark such as Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Longside is about 5 miles west of Peterhead, in Aberdeenshire. Across the AB42 area, we can carry out window mastic at your property. 161 places in Aberdeenshire are on our list. For nearby work, see our Aberdeen page.
We work across AB42 for window mastic and the streets around it. We cover properties on Market Hill, Main Street and Station Road. If you’re just outside Longside, we cover Mintlaw (2 miles west), Rora (3 miles north-east), Downiehills (3 miles east), Old Deer (4 miles west) and Fetterangus (4 miles north-west). Further out, we also cover Peterhead (5 miles east), Fraserburgh (12 miles north), Ellon (11 miles south-west), Roanheads (6 miles east), Clerkhill (5 miles east) and Port Henry (6 miles east).
Local landmarks in Longside
A little further out are Inverugie Castle (4.2 miles east) and Carnegie Inverurie Museum (1.9 miles south-west). Open spaces near Longside include Hill of Aldie and Pitfour Lake.
FAQs for Longside
Is Longside in your area for window mastic?
Yes, Longside is within the area we cover. Our work covers the whole of Scotland. You can send an email to info@mrmastic.co.uk and let us know what needs doing, and we’ll send you a clear quote.
Will you come out to Longside?
Yes, we do. We work across all of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Is the new sealant paintable?
Not normally, if it’s silicone. We choose the product with your decorating in mind, so mention it when you book.
How long should I leave it?
Many sealants skin over quickly but take longer to cure fully. We will tell you how long to leave the joint.
Can you match the sealant to my frames?
Yes. Grey and black frames get grey or black sealant, and wood-effect frames normally suit brown.
Do you take out the old sealant first?
Yes, always, and completely. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Do you have insurance?
Yes. We are fully insured, and we can confirm the details when we quote.
Is there any odour?
There can be a smell while the sealant cures. Ventilation helps.
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report. Several properties can be quoted together.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.
How we quote for window mastic
Your quote is based on your job. We take into account:
- How many rooms, windows or areas are involved
- Whether the work is at height
- Any working-time requirements on site
- The type of sealant required
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.
Helping us quote
Before you ask for a quote, have a think about:
- If it’s domestic, commercial or a hotel
- Pictures of the joints, sent by email
- Where the job is, and your postcode
- What’s wrong with the joints now
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
What we do, step by step
Before we leave, we go over the finished joints with you. The visit itself generally takes anything from an hour or two to a full day, depending on how many frames there are, depending on the size of the job. In smaller Scottish places, parking is usually less of an issue than access and distance. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- 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.
Before we arrive
- Move anything stored near the joints
- Mention any parking rules near the property
- Keep pets and children clear of the area while we work
Get a quote
Need a quote? Please send an email to info@mrmastic.co.uk with a few details. We will explain what we’d do and give you a clear quote before any work starts.
Advice
Towns and villages near Longside
Other services in Longside
What we can’t put right
Before booking, it’s worth knowing the limits too:
- Worn gaskets, brush seals or a door that has dropped
- A sash or casement that will not close properly
- Penetrating damp from a failed cavity tray or render
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think before you book.
Joints and surfaces we work on
- Timber windows & doors
- Patio & French doors
- Aluminium frames
- Window sills
- uPVC windows
- Composite doors
Different surfaces, different methods
Timber windows & doors
Older timber windows in stone or brick can suit sand mastic rather than modern sealant. We’ll tell you which suits your home.
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the bottom joint sees the most water. We prepare and reseal every joint, backing the deep ones.
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Use gentle cleaners on frames and sealant
- Walk round the house once a year and look at the joints
- Keep paint off silicone joints
- Keep drainage slots and sill grooves clear
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak.
Look out for the warning signs: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. If you notice one, it’s time to get the joint looked at.