Fife · Scotland
Window & door mastic in Inverkeithing, Fife
Mastic around window and door frames, sills and patio doors for Inverkeithing, backed by a one-year guarantee. Ask us for a quote.
- Mastic that’s falling out in pieces
- Whistling draughts around closed windows
- Sealant in the wrong colour for the frame
What we can’t put right
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Soft or decayed wood in the frame
- A sash or casement that won’t close properly
- Damp coming through the wall itself rather than the frame joint
Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly before you book.
Joints and surfaces we work on
- Timber windows & doors
- uPVC windows
- Window sills
- Composite doors
- Aluminium frames
- Patio & French doors
About our window mastic in Inverkeithing
Over two decades of sealing frames has taught us which products suit which walls. We’re ARBOMaster approved and fully insured, and we give a 12-month guarantee on the work. We’re often asked to deal with draughts coming in around windows and doors and gaps where the sill meets the wall, on uPVC windows, patio & French doors and window sills.
Outdoor sealant needs a dry surface, so window work around Inverkeithing is planned around the weather, and longer journeys are planned in advance. Tell us about access to all the windows and doors, upstairs included.
The work is covered for a year after we finish. If there’s a problem with it, please send an email to info@mrmastic.co.uk.

- Location
- Inverkeithing (KY11)
- Region
- Fife
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Common problems we fix in Inverkeithing
A lot of older mastic was never designed to stay flexible. Once it has hardened, the frame’s movement tears it from the wall, and a gap opens along one edge.
The most common problems we see are:
- Damp patches on the reveal after heavy rain
- Black, perished sealant on frames
- Mastic that has split away from the wall
- Gaps left after new windows were fitted
Managing a site like Inverkeithing High School? Then the mastic around its windows and doors needs looking after like any other building’s.
Before booking anyone
- The length of the guarantee
- Whether you can choose the colour
- What happens if the job turns out different
- What insurance they hold
Places near Inverkeithing
Other services in Inverkeithing
DIY versus a professional finish
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly.
What happens if it’s left?
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. In an older home around Inverkeithing, damp from a failed joint can get into timber and plaster.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, email us at info@mrmastic.co.uk for an honest opinion and a quote.
Why us?
- White, clear, grey or coloured to suit, where the product allows
- Sanitary silicone with an anti-fungal additive in wet areas
- Trusted Arbo and Everbuild sealants
- A sealant colour to suit the surroundings
See our cost guide and our reviews.
Quotes for window mastic in Inverkeithing
Call for a quick quote. The main things that affect it are:
- Whether there’s mould to deal with
- The size of the job
- The type of sealant required
- The number of rooms or windows
Doing several joints on one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We will give you a clear price for the lot.
What to tell us for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Pictures of the joints, sent by email
- Roughly how big the job is
- The problem you’ve noticed
- Whether it has been sealed before
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. When it suits you, email us at info@mrmastic.co.uk.
Inverkeithing: your questions answered
Does living near the coast affect window mastic in Inverkeithing?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
Is Inverkeithing within the area you cover?
Yes, we do. Our work covers the whole of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can I do it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
How long before the joint can be used?
That depends on the sealant used, so please follow the time we give you.
Will new mastic stop draughts?
Yes, if the air is getting in around the frame. If it’s coming through the window seals, we’ll tell you.
Do I need to be at home?
We need access to the joints, so we will agree that with you when we book. Indoors, that normally means someone at home.
Can new window sealant be painted?
Silicone generally won’t take paint. Let us know beforehand, and we’ll use a paintable product where it suits.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
What we do, step by step
You don’t need to clear the whole room or building, just the space around the work. We protect the rest, and the job takes most of a day for a typical house, less for a few frames in most cases. In smaller Scottish places, parking is generally 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.
- We check how each frame can be reached safely.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Let us know about parking restrictions
- Plan for the work area to be out of bounds to pets and children
- Tell us about any previous sealing or DIY attempts
Ask for a quote
Every job is quoted individually. Just email us at info@mrmastic.co.uk with the details.
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Work for landlords, hotels and businesses
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
Window mastic in Inverkeithing: local notes
Inverkeithing is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. 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 failed outside joints work against that.
In the older streets around St Peter's Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. For landlords with property near Inverkeithing station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Inverkeithing is about 3 miles south-east of Dunfermline, in Fife. Jobs in Inverkeithing get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Inverkeithing is one of 133 places in Fife where we work. Our Edinburgh page covers work nearby.
All of KY11 is within our area for window mastic. That includes homes and businesses on High Street, Heriot Street and Port Street. Inverkeithing is on the B981, so it’s easy for us to get to. Nearby, we also carry out window mastic in Jamestown (1 mile south), Hillend (1 mile north-east), North Queensferry (1 mile south), Dalgety Bay (2 miles east) and Fordell Firs (2 miles north-east). Further out, we also cover Dunfermline (3 miles north-west), Kirkcaldy (11 miles north-east), Glenrothes (14 miles north-east), Cowdenbeath (6 miles north), Dysart (12 miles north-east) and Abbeyview (3 miles north-west).
Landmarks near Inverkeithing
We work in homes and buildings around The Burgh Arms and the streets around them. There’s a railway station in Inverkeithing itself: Inverkeithing station. A little further out are Queensferry Museum (2.9 miles south) and Kingsgate Centre (3.7 miles north-west). Green spaces nearby include Dundas Loch.
