Orkney Islands · Scotland

Window Mastic in Cairston

Window and door frames in Cairston need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.

  • Leaking joints at the ends of sills
  • Old mastic that has gone black or come away
  • Draughty joints inside around the window

Window mastic near Cairston

Landlord and commercial work in Cairston

From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.

If you manage several properties in or around Cairston, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and photos by email help.

Window mastic for homes and businesses in Cairston

Every window and door frame has a gap around it, and mastic is what closes it. Once that seal fails, wind and rain find the gap. Our applicators cut it out and replace it with a flexible, weatherproof sealant. Typical jobs include cracked or shrunken mastic around the frame and gaps between the frame and the inside reveal, on uPVC windows, window sills and aluminium frames.

Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Wind-driven rain finds any gap around a frame or sill.

Big or small, you get the same one-year guarantee.

Location
Cairston (KW16)
Wider area
Orkney Islands
Guarantee
One year on every job
Quotes
A clear price before we start
Email
info@mrmastic.co.uk
Last updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

What the job involves on each surface

Aluminium frames

Coated aluminium needs a compatible sealant. Neutral-cure sealant is the safe choice.

Window sills

Every drop off the glass ends up on the sill, so the joints at each end and underneath matter. Each is cleaned out and resealed.

How to look after the new joints

After the cure time, these simple habits help:

  • Keep paint off silicone joints
  • Check the mastic once a year
  • Repaint timber before it’s bare
  • Make sure the drainage slots aren’t blocked

Wipe the frames with soapy water when you clean the windows, and avoid solvent cleaners on the sealant.

Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.

How it works

Before we leave, we go over the finished joints with you and explain the cure time. The work normally takes a few hours for a few frames, or a day or more for a whole house, depending on the size of the job. For a place like Cairston, longer drives are planned in advance. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.

  1. First, we confirm safe access to each frame.
  2. All the failed sealant is cut away.
  3. The surfaces are cleaned and left dry.
  4. Backing rod fills deep voids and the sealant goes in on top.
  5. We tool the joint so water runs off, then clear up.

How to prepare

  • Mention any leaks or damp you’ve noticed
  • Tell us about any previous sealing or DIY attempts
  • Move anything stored near the joints

How to get a quote

Want a quote for window mastic? Please drop us a line at info@mrmastic.co.uk and tell us about the job. We will explain what we’d do and give you a clear quote before work begins.

Ask for a quote

Read more

Window mastic in Cairston: local notes

Cairston is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. On the islands, wind and salt spray are hard on outside sealant.

For site and facilities teams at buildings such as stromness primary school, its window and door frames need their mastic kept sound, just like a home’s. In and around Cairston, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.

Cairston is about 11 miles west of Kirkwall, in the Orkney Islands. If you need window mastic in Cairston, please email us at info@mrmastic.co.uk for a quick quote. We cover the Orkney Islands from our Crawley base. Across the Orkney Islands, we cover 51 places, Cairston among them.

Our applicators cover all of the KW16 postcode area for window mastic and the streets around it. Other places close to Cairston include Stromness (1 mile south-west), Clouston (2 miles east), Stenness (2 miles east), Wasbister (3 miles north) and Grimeston (4 miles north-east). Remote and island addresses need a little more planning, so tell us where you are when you ask for a quote.

Landmarks near Cairston

A little further out are Stromness Museum (1.7 miles south-west). Open spaces near Cairston include Loch of Stenness and Brodgar RSPB Reserve.

Map of Cairston © OpenStreetMap contributors

When something else is needed

We’ll always be straight with you, so here’s what new sealant will not do:

  • Faulty window hardware
  • Condensation trapped between the panes
  • Damp coming through the wall itself rather than the frame joint

Not sure which it is? You can drop us a line at info@mrmastic.co.uk and we’ll tell you honestly before you book.

What we seal

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

Can I do it myself?

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.

A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

How we quote for window mastic

The quote reflects the job in front of us. We look at:

  • The number of rooms or windows
  • Access and height
  • Any mould that needs treating
  • Which sealant suits the joint

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. Call for a quick quote and we’ll go through it with you.

Asking for a quote

To help us quote quickly, please include:

  • Access, such as stairs, a lift or height
  • The rough size of the job
  • If someone has resealed it before
  • The problem you’ve noticed

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

Common questions in Cairston

Does living near the coast affect window mastic in Cairston?

Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. Walls facing the sea are generally the first to need attention.

Is Cairston within the area you cover?

Yes. Cairston is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland, including the islands, where work is planned around ferry crossings. Let us know about access, parking and anything unusual about getting there when you book.

Can resealing stop a draught around my window?

Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that is a different fix, and we will say so.

Do you guarantee window mastic?

Yes. Each job is covered for 12 months, inside or out.

How long will my window job take?

A handful of frames is a short visit. You will get a timescale with the quote.

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, while a short indoor joint may be within reach.

Do I need to be at home?

Access is agreed with you when the job is booked. For inside work, that normally means someone being in.

Can landlords and businesses book you?

Yes, often. Several properties can go on one quote, and between tenancies is a good time for the work.

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