Argyll and Bute · Scotland
Fionnphort Window Mastic
Specialist window mastic for Fionnphort: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Sealant in the wrong colour for the frame
- Cold air getting in at the frame edge
- Mastic that’s falling out in pieces
Surface by surface
uPVC windows
The frame is cleaned with a product that will not harm the plastic, then the new bead is laid against the frame and the wall and tooled smooth.
Window sills
Sills catch the water running down the glass, so the sill ends and the joint under the frame are vital. Each is cleaned out and resealed.
Window mastic in Fionnphort, done properly
There are two joints on most windows. The external joint is the weather seal; inside, the joint between frame and plaster stops draughts and tidies the reveal. Either or both can be done. If you are dealing with mastic that’s falling out in pieces and draughts coming in around windows and doors, we can put it right.
Mastic can only go onto a dry joint, so outside work in Fionnphort depends on the weather, and longer journeys are planned in advance. Let us know about access to every frame, including any upstairs.
Our work is backed for twelve months, and the guarantee is the same wherever you are.

- Where
- Fionnphort (PA66)
- Wider area
- Argyll and Bute
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Questions from Fionnphort
Does living near the coast affect window mastic in Fionnphort?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Can you do window mastic in Fionnphort?
Yes. Our work covers the whole of Scotland, and Fionnphort is part of that. Just send an email to info@mrmastic.co.uk with a few details of the job.
How much does window mastic cost in Fionnphort?
The cost depends on the size of the job, access and how much old sealant has to come out. Call for a quick quote and we will talk you through it.
How long should I leave it?
That depends on the sealant used, so follow the cure time we give you.
Do you work for landlords and businesses?
Yes, regularly. We can quote for several properties at once.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints, and we clear up when we are done.
How many windows can you do in a day?
A few frames take a few hours. We confirm the timing with your quote.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
Windows and doors in Fionnphort
Fionnphort 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 window and door frames, which can dry out and crack sooner where a building faces the weather. Fionnphort is in the west of Scotland, which is wetter than the east, so there’s plenty of rain for the mastic around window and door frames to keep out.
In and around Fionnphort, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Fionnphort is in Argyll and Bute. Jobs in Fionnphort get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Fionnphort is one of 118 towns and villages in Argyll and Bute where we work for window mastic.
Work in PA66 is quoted and booked the same way as anywhere else. Nearby, we also carry out window mastic in Baile Mòr (1 mile north-west), Bunessan (5 miles east), Ardtun (5 miles east), Ballygown (15 miles north-east) and Upper Kilchattan (18 miles south). If you are somewhere remote, the job takes a little more planning.
Near you in Fionnphort
A little further out are Iona Heritage Centre (1.2 miles west). Green spaces nearby include Loch Poit na h-Ì and Càrn Buidhe.
Do you need window mastic in Fionnphort?
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, and a gap opens along one edge.
The most common problems we see are:
- Draughty joints inside around the window
- Mastic that has split away from the wall
- White mastic on grey or black frames
- Black, perished sealant on frames
Whether the job is in Fionnphort itself or nearby, the right material for each joint matters as much as a neat finish.
Questions to ask before booking
- What guarantee comes with the work
- How the joint is cleaned and prepared
- Who does the work, and how experienced they are
- Whether VAT is included
Why act early in Fionnphort
Once mastic fails, rain can get between the frame and the wall. Over time that can mean damp patches, damaged plaster and rotting timber. Resealing now is a small job by comparison. In an older home around Fionnphort, damp from a failed joint can get into timber and plaster.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we will explain what it covers.
What you get with us
- 180+ five-star Google reviews
- Any old sealant cut out fully, not covered over
- An ARBOMaster approved applicator
- We agree the colour with you first
Read our cost guide and our reviews.
What else we do in Fionnphort
What we do, step by step
We bring everything the job needs with us. Once we’ve agreed what’s being done, we protect the area and start. It normally takes a few hours for a few frames, or a day or more for a whole house. Outside jobs in Fionnphort need a dry day, because sealant will not bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors is not affected.
- We check each frame and agree which ones need doing.
- Next the failed sealant is cut away and the joint cleaned.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
How to prepare
- Mention any parking rules near the property
- Mention any tricky access
- For indoor joints, keep the area dry beforehand if you can
Get a quote
If you’re in Fionnphort and need window mastic, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Related advice
What affects the cost of window mastic
Call for a quick quote. The main things that affect it are:
- Access and height
- Any mould that needs treating
- How many areas need sealing
- The product the joint needs
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, send an email to info@mrmastic.co.uk and we’ll give you an honest view and a quote.
What to tell us for a quote
When you call or email, these details help:
- The address or postcode of the job
- Access, such as stairs, a lift or height
- Whether it has been sealed before
- How many joints, rooms or windows are involved
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.
Should I try it myself first?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
When it is not the sealant
Before you book, it’s worth knowing the limits too:
- Draughts through the window seals rather than the frame
- Condensation trapped between the panes
- Damp coming through the wall itself rather than the frame joint
If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think before you book.
Surfaces we seal
- Patio & French doors
- Timber windows & doors
- uPVC windows
- Composite doors
- Window sills
- Aluminium frames
