Argyll and Bute · Scotland
Window & door mastic in Oban, Argyll and Bute
Window mastic in Oban from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Cracked sealant at the sill ends
- Gaps between the frame and the inside reveal
- Mastic that has split away from the wall
What affects the quote in Oban
We do not publish a price list, because no two jobs are the same. The quote depends on:
- The size of the job
- Mould in or behind the old joints
- When we can work, for business premises
- How many areas need sealing
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are not sure whether it needs doing, send an email to info@mrmastic.co.uk and we’ll give you an honest view and a quote.
Helping us quote
What to tell us when you ask for a quote:
- The type of property
- Any access issues, like height or stairs
- A few photos by email, if you can
- What the problem is, such as mould, gaps, leaks or cracking
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and add photos by email if you can.
Window mastic for homes and businesses in Oban
A window frame and the wall around it expand and shrink at different rates. Heat and cold make frames grow and shrink against brick or render that hardly moves. That’s why the joint needs a flexible, low-modulus sealant rather than something rigid. If you have a bead that doesn’t match the frame and cracked sealant at the sill ends, we can put it right.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain, so the mastic there works hard.
All our work is covered by our one-year guarantee.
- Location
- Oban (PA34)
- Wider area
- Argyll and Bute
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Repaint timber before it’s bare
- Keep drainage slots and sill grooves clear
- Check the mastic once a year
- Don’t use solvent cleaners on the joint
Keep the new mastic undisturbed while it cures, following the cure time we give you. Do not point a pressure washer at the joints.
Water trapped behind a failed joint can start rot in timber frames and sills. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
What we cannot put right
We’d rather tell you now than do work that will not last, so these are the limits:
- A sash or casement that won’t close properly
- Rotten timber, which needs a joiner first
- Condensation trapped between the panes
If you’re not sure, just send an email to info@mrmastic.co.uk and we will give you a straight answer before booking.
Surfaces we seal
- Aluminium frames
- Patio & French doors
- Timber windows & doors
- Composite doors
- uPVC windows
- Window sills
The process
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the job takes a morning for a couple of windows and a door for a typical job. Outside jobs in Oban need a dry day, because sealant won’t bond to a wet joint, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Move anything stored near the joints
- Let us know if you’ve seen damp or leaks
Get a quote
Asking for a quote is easy: let us know what needs doing and where. Photos by email help us understand the job, and we’ll come back to you with a quote.
Read more
Why act early in Oban
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. Resealing now is a small job by comparison. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.
Doing several joints on one visit generally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why book with us
- Colour picked to suit the job
- Every job guaranteed for a year
- More than 20 years in sealant work
- 4.9 on Google from 180+ five-star reviews
Take a look at what affects the cost or customer reviews.
Questions from Oban
Will you come out to Oban?
Yes. Oban 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 living near the coast affect window mastic in Oban?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Can new sealant go over the old?
No. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do you work on first-floor windows?
Yes, as long as they can be reached safely. Let us know about access when you ask for a quote so we can plan the job.
Are you insured?
Yes. We are fully insured.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used before we leave.
Surface by surface
Aluminium frames
Metal frames expand in the sun and are often slim, with little room for error. A tidy bead in anthracite grey, black or a matching colour keeps the clean look.
Window sills
Where a sill meets brick or render, the ends often crack first. We reseal them so rain can’t run into the wall.
Oban homes and the weather
Oban 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. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
For landlords with property near Oban station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Homes close to Old Parish Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. For site and facilities teams at buildings such as Oban High School, its window and door frames need their mastic kept sound, just like a home’s.
Oban is in Argyll and Bute. Wherever you are in the PA34 postcode area, we can carry out window mastic at your property. Across Argyll and Bute, we cover 118 places, and Oban is one of them. Our Glasgow page covers work nearby (60 miles or so).
Every address in PA34 is covered for window mastic, from the main roads to the quietest streets. You will find streets such as Market Street, High Street and Argyll Square. Oban sits on or near the A85 and A816, so getting to you is simple. If you’re just outside Oban, we cover Dunollie (1 mile north), Ganavan (2 miles north), Dunbeg (3 miles north), Kilmore (3 miles south-east) and Connel (4 miles north-east). As one of the bigger places in Argyll and Bute, Oban has every kind of property, from flats to offices. Remote and island addresses need a little more planning, so please mention your location when you drop us a line at info@mrmastic.co.uk.
What’s near Oban
Around Oban, our work takes us to homes and buildings near Caledonian Hotel and the streets around them. Oban has its own railway station: Oban station. Other landmarks nearby include Oban Museum (0.6 miles north) and Dunollie Castle (1.2 miles north-west). Green spaces nearby include Lochan Dubh.