Aberdeenshire · Scotland
Window Mastic in St Fergus
Mastic around window and door frames, sills and patio doors for St Fergus, backed by a one-year guarantee. Call for a quick quote.
- Cracked or shrunken mastic around the frame
- Water coming in at the bottom corners of a door
- Draughts coming in around windows and doors
What happens on the day
There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes a few hours for a handful of frames, longer for a whole house from start to finish. For a place like St Fergus, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Let us know about stairs, lifts or work at height
- Clear the area around the work
Get a quote
For window mastic in St Fergus, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and you’ll get a clear quote before work begins.
Related advice
About our window mastic in St Fergus
Over two decades of sealing frames has taught us which products suit which walls. We’re fully insured ARBOMaster approved applicators, and every job is covered by a 12-month guarantee. Typical jobs include cracked or shrunken mastic around the frame and rushed sealant from a window installation, across timber windows & doors, patio & French doors and window sills.
In and around a place like St Fergus, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.

- Where
- St Fergus (AB42)
- Wider area
- Aberdeenshire
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Towns and villages near St Fergus
Other services in St Fergus
Surface by surface
Window sills
Every drop off the glass ends up on the sill, so the sill ends and the joint under the frame are vital. Each is cleaned out and resealed.
uPVC windows
Plastic frames move a lot between a hot afternoon and a cold night, so the joint needs a low-modulus sealant that stays flexible. We match white, brown, anthracite grey and black frames.
Honest limits
New sealant cannot fix everything, and we’ll tell you before work begins. It will not solve:
- A failed sealed unit that has misted up
- Broken hinges, locks or handles
- A frame that has rotted at the joint
If in doubt, send an email to info@mrmastic.co.uk and we’ll say what we think.
Joints and surfaces we work on
- Aluminium frames
- Timber windows & doors
- Patio & French doors
- uPVC windows
- Window sills
- Composite doors
Signs you need window mastic in St Fergus
Sun, frost and rain wear sealant out. UV light hardens the outside of the bead, until it loses its stretch and starts to crack.
Keep an eye out for any of the following:
- Damp patches on the reveal after heavy rain
- Old mastic that has gone black or come away
- A bead that doesn’t match the frame
- Gaps where the sill meets the wall
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.
Before you book anyone
- What guarantee comes with the work
- How long to leave it before use
- What happens if the job turns out different
- How the colour is chosen
Why act early in St Fergus
Working on frames from a ladder with a sealant gun is not easy, especially upstairs. We cut out properly, back deep gaps and tool every joint neatly, in a sealant suited to the wall. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are unsure, drop us a line at 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
- Sealant colour chosen to suit
- Neat joints and a tidy finish
- Rated 4.9 stars on Google
Read how sealant jobs are priced and customer reviews.
How to look after the new joints
A little care helps the new joints last. Our advice:
- Keep drainage slots and sill grooves clear
- Clean frames with a soft cloth and soapy water
- Keep timber frames painted
- Wipe condensation off the frames
Clean the frames with mild soapy water, and keep solvents and harsh chemicals off the joint.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. If you notice one, it’s time to get the joint looked at.
Window mastic in St Fergus: local notes
St Fergus is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around window and door frames, especially on the side facing the sea. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
In and around St Fergus, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
St Fergus is about 4 miles north-west of Peterhead, in Aberdeenshire. Whether you’re in the middle of St Fergus or further out, we cover window mastic for every kind of property. Our area takes in 161 places across Aberdeenshire. Our Aberdeen page covers work nearby (30 miles or so).
Postcode districts we cover here for window mastic: AB42. Whether your property is on Alwyn Wynd, Newton Road and Newton Grove or anywhere close by, our applicators can take on the job. We also cover Kirktown (1 mile west), Rora (2 miles south-west), Keyhead (3 miles north-west), Inverugie (3 miles south) and Downiehills (3 miles south). We also work in nearby towns such as 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).
Landmarks near St Fergus
A little further out are Inverugie Castle (2.4 miles south) and Ugie Hospital (3.5 miles south-east). For a walk, there’s Loch of Strathbeg and Meet Hill.
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
We work for letting agents and landlords as well as householders. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.
Questions from St Fergus
Will you come out to St Fergus?
Yes. St Fergus is within the area we cover, which takes in towns, villages and rural addresses. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Does the coastal weather in St Fergus affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Can I paint over the new sealant?
Most silicone cannot be painted. Let us know beforehand, and we will use a paintable product where it suits.
Do you work for landlords and businesses?
Yes. As well as householders, we work for landlords, agents, businesses and hotels across Aberdeenshire.
Where is Mr Mastic based?
Our base is Crawley. Our area covers South East England, London and Scotland.
How long does it take to reseal the windows on a house?
It depends on access, the old mastic and the size of the frames. We will tell you how long your job needs when we quote.
Do the sealants smell?
Sometimes, a little. It fades as the sealant cures.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. If it does not work out, we can redo it.
