Aberdeenshire · Scotland
Sand mastic for sash & case windows in St Fergus, Aberdeenshire
Sand mastic for St Fergus, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Silicone on a period window that looks wrong
- Wind and rain getting in round a sash window
- Weathered mastic on the most exposed windows
What we can’t put right
New sealant can’t fix everything, and we’d rather say so up front. Sealant won’t put right:
- Masonry that needs repairing
- Sash cords, weights and draught-proofing of the sashes
- Cracked or broken glass
If you’re not sure, just email us at info@mrmastic.co.uk and we’ll give you a straight answer.
What we seal
- Period & listed homes
- Brick reveals
- Stone surrounds
- Tenement windows
- Sash and case windows
- Timber door frames
How we handle sand mastic in St Fergus
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant and we will explain which is best for yours. We are often asked to deal with silicone on a period window that looks wrong and failed mastic on an exposed elevation, across timber door frames, period & listed homes and tenement windows.
Mastic can only go onto a dry joint, so outside work in St Fergus depends on the weather, and longer journeys are planned in advance. Let us know about access to every frame, including any upstairs.
All of our work is guaranteed for twelve months, in St Fergus and everywhere else we cover.
- Place
- St Fergus (AB42)
- Wider area
- Aberdeenshire
- Cover
- A year, on every job
- Quote
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What affects the quote in St Fergus
There’s no set price list, because jobs vary so much. What we look at:
- The product the joint needs
- How much there is to do
- Whether the work is at height
- The old material and how stubborn it is
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- Whether it has been sealed before
- How many joints, rooms or windows are involved
- If it’s domestic, commercial or a hotel
- The problem you’ve noticed
For a quote, email us at info@mrmastic.co.uk with the location and a short description of the problem. You will have a clear quote before work begins.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Have rotten timber repaired before new mastic goes in
- Plan mastic work ahead of painting
- Ask us before painting near the mastic
- Check with your local planning authority if your home is listed
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at before trying a quick fix.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
Landlords, agents and businesses in St Fergus
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Also near St Fergus
Also in St Fergus
Frames and glazing around St Fergus
St Fergus is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.
Homes close to St Fergus Parish Church and Churchyard include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
St Fergus is about 4 miles north-west of Peterhead, in Aberdeenshire. From the centre of St Fergus to the outskirts, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. We cover 161 towns and villages across Aberdeenshire. For nearby work, see our Aberdeen page, about 30 miles away.
All of AB42 is within our area for sand mastic. That includes homes and businesses on Alwyn Wynd, Newton Road and Newton Grove and the roads around them. Nearby, we also carry out sand mastic in Kirktown (1 mile west), Rora (2 miles south-west), Keyhead (3 miles north-west), Inverugie (3 miles south) and Downiehills (3 miles south). Larger places within reach include Peterhead (4 miles south-east), Fraserburgh (11 miles north-west), Roanheads (4 miles south-east), Clerkhill (4 miles south), Port Henry (4 miles south-east) and Mintlaw (6 miles west).
Near you in St Fergus
Other landmarks nearby include Inverugie Castle (2.4 miles south) and Ugie Hospital (3.5 miles south-east). Not far away are Loch of Strathbeg and Meet Hill.
How it works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself usually takes anything from a few hours to a full day, depending on how many windows, depending on the amount of work. Around St Fergus, distance and access matter more than parking. Tell us how to find the property and how to reach the work.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- For business premises, tell us about site rules or sign-in
- Tell us if parking is tricky
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, email us at info@mrmastic.co.uk.
Read more
Signs you need sand mastic in St Fergus
Water gets into small cracks in the mastic and pushes it out. Windows facing the weather tend to go first.
Any of these means the joints need attention:
- Old cement repairs round a window that have failed
- Crumbling sand mastic round a window
- Draughty sash windows at the surround
- Gaps round a timber door in stone or brick
Around St Fergus, as everywhere, sand mastic is only as good as the preparation behind it.
What your quote should include
- Whether you can choose the colour
- What the quote includes, VAT included or not
- How hidden problems are handled
- Is the old sealant removed completely?
Why it’s worth doing now in St Fergus
Draughts round a sash window aren’t always the sashes. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. In a place like St Fergus, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
Why book with us
- Homes, businesses and hotels
- Anti-fungal silicone where joints get wet
- Rated 4.9 stars on Google
- Old sealant always removed completely
Take a look at what affects the cost and our reviews.
FAQs for St Fergus
Is St Fergus in your area for sand mastic?
Yes, St Fergus is within the area we cover. We work across all of Scotland. Just send an email to info@mrmastic.co.uk with a few details of the job.
Does the coastal weather in St Fergus affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
What information do you need?
Tell us what needs doing and where, plus photos if you have them. If we need more, we’ll ask.
What is sand mastic?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
Should I use sand mastic or silicone?
Sand mastic generally suits period timber windows best. Modern frames normally suit a flexible sealant.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Is there any odour?
Possibly a little. It fades as the sealant cures, and ventilation helps.