Highland · Scotland

Sand Mastic in Gairloch

We cover Gairloch for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.

  • Cement or filler used on old window joints that has cracked
  • Gaps between timber frames and stone or brick
  • Crumbling sand mastic round a window

Book sand mastic in Gairloch

What sealant work can’t fix

A few problems are outside what sealant work can do:

  • Timber that has rotted
  • Sash cords, weights and draught-proofing of the sashes
  • Putty and glazing repairs

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

  • Brick reveals
  • Period & listed homes
  • Sash and case windows
  • Timber door frames
  • Stone surrounds
  • Tenement windows

Sand mastic in Gairloch

Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. We rake it out and renew it so the surround looks right again. We work on period & listed homes, stone surrounds and sash and case windows, and people most often call us about window mastic to renew ahead of painting and mastic round period door frames that has failed.

In and around a place like Gairloch, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.

Each job carries a 12-month guarantee.

Applicator reaching up to seal an external door frame on a sunny day
Location
Gairloch (IV21)
Region
Highland
Guarantee
12 months on all our work
Quote
A clear quote up front
Email
info@mrmastic.co.uk
Last updated
26 October 2026

What affects the cost of sand mastic

Every job gets its own quote. This is what makes a difference:

  • The number of rooms or windows
  • When we can work, for business premises
  • Which sealant suits the joint
  • How much there is to do

Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs. Call for a quick quote and we’ll explain what it covers.

Asking for a quote

To help us quote quickly, please include:

  • How many joints, rooms or windows are involved
  • Whether it has been sealed before
  • A few photos by email, if you can
  • Where the property is

We quote each job on its own, so start by telling us what you need. Simply send an email to info@mrmastic.co.uk and describe the job, and photos are welcome.

DIY versus a professional finish

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.

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.

How the visit works

At the end, we look at the finished work together. The visit itself generally takes anything from a few hours to a full day, depending on how many windows, depending on how much there is to do. In smaller Scottish places, parking is usually less of an issue than access and distance. Tell us how to find the property and how to reach the work.

  1. We check each window surround and the condition of the joint.
  2. We rake out the old mastic and clean the joint.
  3. Large voids are packed out.
  4. New sand mastic is applied and shaped by hand.
  5. We finish the mastic to a tidy line.

How to prepare

  • Keep pets and children clear of the area while we work
  • For indoor joints, keep the area dry beforehand if you can
  • For business premises, tell us about site rules or sign-in

Getting a quote

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.

Get a price

Read more

Aftercare tips

How long the joints last depends on use and care. Here’s what we suggest:

  • Keep modern sealant off the mastic
  • Find out about consent before window work on a listed home
  • Keep sills and gutters clear so water drains away
  • Avoid heavy scraping on the mastic joint

Check the mastic when you check the paintwork. Small cracks are easier to deal with early.

An open joint round the box lets weather through. Left, the gap tends to get bigger.

Frames and glazing around Gairloch

Gairloch 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 older windows and doors, which can dry out and crack sooner where a building faces the weather. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that.

Managing a site like Gairloch High School? Then larger buildings have plenty of frames, and the mastic around each one ages. In and around Gairloch, as anywhere, good sand mastic starts with a clean, dry, properly prepared joint.

Gairloch is in Highland. Homes, rented property, offices and hotels in Gairloch is covered for sand mastic. Every job comes with our 12-month guarantee. Gairloch is one of 253 towns and villages in Highland we cover.

Postcode districts we cover here for sand mastic: IV21. That includes homes and businesses on Glebe Park, Faolin and Burnside Terrace and the roads around them. We also cover the places around Gairloch: Lonemore (1 mile west), Badachro (3 miles south-west), Poolewe (4 miles north-east), Inverasdale (6 miles north) and Àird (8 miles north-east). For island and remote addresses, the job takes a little more planning, so let us know when you get in touch.

Landmarks near Gairloch

In Gairloch, that means homes and buildings near Gairloch School and the streets around them. A little further out are Gairloch Museum (less than half a mile south-east). Green spaces nearby include Cnoc Dubh and Linne a' Mhuilinn.

Map of Gairloch © OpenStreetMap contributors

Different surfaces, different methods

Sash and case windows

The mastic round a sash window is on show so we finish it carefully.

Timber door frames

Period doors in stone or brick openings are often pointed with sand mastic. The method is the same as for windows.

For landlords and businesses

Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.

Housing providers, facilities teams and property managers book us too in Gairloch and across Highland. We can quote a run of properties together, and we’re fully insured for the work.

FAQs for Gairloch

Will you come out to Gairloch?

Yes, smaller places are covered as well as towns. 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 sand mastic in Gairloch?

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.

Is there any odour?

That depends on the sealant. Some products have a noticeable smell, others very little.

Should I use sand mastic or silicone?

For period timber windows in stone or brick, sand mastic is often the better fit. On modern frames, we’d normally use a flexible sealant.

Can old silicone round a sash window be swapped for sand mastic?

Yes, it’s a common request. All the old silicone is removed first so the mastic can sit properly.

Can I paint the new mastic?

The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we will advise.

What exactly is sand mastic?

It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and shaped to suit the surround.

I’m a tenant. Can you help?

Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.

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