Argyll and Bute · Scotland

Window Mastic in Upper Kilchattan

Our applicators work in Upper Kilchattan on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Sealant in the wrong colour for the frame
  • Gaps where the sill meets the wall
  • Cracked internal joints between frame and plaster

Window mastic for Upper Kilchattan homes and businesses

What happens on the day

Our applicators work methodically: protect, prepare, seal, tidy. Typically it takes a few hours for a few frames, or a day or more for a whole house, and the area is left clean. For a place like Upper Kilchattan, longer drives are planned in advance. Mention tracks, gates, ferries or anything else about the route.

  1. First we look at every frame and agree the list.
  2. We remove the old mastic and clean the frame and the wall.
  3. We fit backing rod in deep gaps so the sealant is the right depth.
  4. A flexible, weatherproof sealant is applied in a colour to suit the frame.
  5. Finally we tidy up and check each joint.

Preparing for the visit

  • On commercial sites, let us know about site rules
  • Let us know about parking restrictions
  • Plan for the work area to be out of bounds to pets and children

Get a quote

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, email us at info@mrmastic.co.uk.

Get a price

Advice

How we handle window mastic in Upper Kilchattan

Frames and walls do not move together. Heat and cold make frames grow and shrink against brick or render that hardly moves. That is why the joint needs a flexible, low-modulus sealant rather than something rigid. Typical jobs include gaps where the sill meets the wall and cold air getting in at the frame edge, across uPVC windows, window sills and composite doors.

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.

We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.

Where
Upper Kilchattan (PA61)
Wider area
Argyll and Bute
Guarantee
A year, on every job
Quote
Quoted before any work starts
Email
info@mrmastic.co.uk
Last updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

Looking after it afterwards

A little care helps the new joints last. Our advice:

  • Do not paint over the silicone
  • Use gentle cleaners on frames and sealant
  • Ventilate rooms so frames don’t stay wet inside
  • Keep timber frames painted

Most silicone sealants won’t take paint, so if you’re planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.

Signs to watch for: 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.

When something else is needed

Some problems need a builder, plumber or other trade rather than us:

  • Penetrating damp from a failed cavity tray or render
  • Rotten timber, which needs a joiner first
  • Broken hinges, locks or handles

If you are not sure, just drop us a line at info@mrmastic.co.uk and we will give you a straight answer.

What we seal

  • Aluminium frames
  • Composite doors
  • Window sills
  • uPVC windows
  • Timber windows & doors
  • Patio & French doors

What the job involves on each surface

Patio & French doors

Water at the foot of a door frame is not always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We check before we reseal.

Timber windows & doors

Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. The paint or stain needs to be sound where the sealant meets it.

What affects the quote in Upper Kilchattan

We quote each job individually. These are the things that affect it:

  • Any working-time requirements on site
  • Whether the work is at height
  • How many areas need sealing
  • Whether there’s mould to deal with

A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.

What to tell us for a quote

You don’t need to know the technical terms. It helps if you can tell us:

  • The problem you’ve noticed
  • Any access issues, like height or stairs
  • Any previous sealing or DIY work
  • A few photos by email, if you can

For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.

What window mastic looks like in Upper Kilchattan

Upper Kilchattan is within about 1 mile of 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. Many older homes in Scotland have sash and case windows, often pointed into the wall with traditional sand mastic.

For an older house near a landmark such as St Cathan's Chapel, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

Upper Kilchattan is in Argyll and Bute. Jobs in Upper Kilchattan get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our Argyll and Bute coverage runs to 118 places, Upper Kilchattan among them. There’s also a page for Glasgow, about 77 miles away.

We cover every part of the PA61 postcode area for window mastic. With the B8086 close by, Upper Kilchattan is simple for us to get to for window mastic. We also cover the places around Upper Kilchattan: Scalasaig (1 mile south-east), Bunnahabhain (14 miles south), Bunessan (16 miles north), Ardtun (16 miles north) and Port Askaig (17 miles south). Island and remote addresses take a little more planning, so please mention your location when you send an email to info@mrmastic.co.uk.

Around Upper Kilchattan

A little further out are The Old Waiting Room (1.3 miles south-east). Green spaces nearby include Càrnan Eoin and Loch Fada.

Map of Upper Kilchattan © OpenStreetMap contributors

Why act early in Upper Kilchattan

The work is quick compared with the damage it prevents: it takes most of a day for a typical house, less for a few frames. Leave it until water is coming in and you may need plastering and decorating as well. 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.

Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs. Call for a quick quote and we will go through it with you.

Why us?

  • We agree the colour with you first
  • A choice of colours where the product allows
  • Fully insured
  • We leave the area clean and tidy

See what affects the cost and what customers say.

When to call us in Upper Kilchattan

Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. Failed sealant there lets rain into the wall or behind the frame.

Signs it’s time to call us include:

  • Rain getting in at the frame or under the sill
  • Cracked or shrunken mastic around the frame
  • Draughty joints inside around the window
  • Whistling draughts around closed windows

Around Upper Kilchattan, as everywhere, window 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
  • When the joint can take water or movement
  • What preparation is included

Our hiring checklist

Questions from Upper Kilchattan

Will you come out to Upper Kilchattan?

Yes. Upper Kilchattan is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Let us know about access, parking and anything unusual about getting there when you book.

Is Upper Kilchattan in your area for window mastic?

Yes. Our work covers the whole of Scotland, and Upper Kilchattan is part of that. You can drop us a line at info@mrmastic.co.uk and let us know what needs doing, and we will give you a clear quote.

Do you work on first-floor windows?

Yes, as long as they can be reached safely. Tell us about access when you get in touch and we’ll plan for it.

Should I try DIY first?

It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.

What do you put in the joint?

Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.

What does window mastic cost?

The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we will talk you through it.

Can new sealant go over the old?

No, because it fails. We remove every bit of old sealant first.

I rent my home. Can I book you?

Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job