Edinburgh · Scotland

Sand mastic for sash & case windows in South Gyle, Edinburgh

We cover South Gyle for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Mastic round period door frames that has failed
  • Mastic that needs renewing before redecorating
  • Gaps where the frame meets the masonry

Trusted sand mastic in South Gyle

What we are called out for in South Gyle

Previous repairs in cement or silicone often trap water or crack away. They do not move with the timber and we normally remove them.

People generally contact us after spotting one of these:

  • Gaps round a timber door in stone or brick
  • Gaps between timber frames and stone or brick
  • Silicone on a period window that looks wrong
  • Failed mastic on an exposed elevation

Letting a property close to South Gyle station? Then any sash windows need sound mastic to keep draughts and rain out.

Before you book anyone

  • How the surfaces are prepared before sealing
  • Who turns up on the day
  • What happens if they find a problem under the old sealant
  • When the joint can take water or movement

Choosing a sealant specialist

How we handle sand mastic in South Gyle

Traditional burnt sand mastic that sits naturally against stone and brick. It’s a good fit for period properties, where modern sealant can look out of place. If you have old sand mastic that has cracked, crumbled or fallen out and window mastic to renew ahead of painting, we can help, on tenement windows, sash and case windows and timber door frames alike.

South Gyle is in one of Scotland’s four big cities, where many older buildings are sandstone or granite. Stone needs a sealant that suits it, which normally means a neutral-cure product or a traditional sand mastic rather than an acetoxy silicone.

You are covered for a year from the day we finish. If there’s a problem with it, please email us at info@mrmastic.co.uk.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Where
South Gyle (EH12, EH11)
Region
Edinburgh
Guarantee
12 months on all our work
Price
A clear quote up front
Email
info@mrmastic.co.uk
Page updated
26 October 2026

How it works

At the end, we look at the finished work together. The work normally takes a few hours for a single window, longer for several, depending on the size of the job. In a city area like South Gyle, parking may be by permit or pay-and-display, so tell us what’s nearby. If you’re in a flat, let us know how we get in at the street door.

  1. We check the window surrounds and agree which joints need renewing.
  2. The loose and crumbling mastic is raked out and the joint cleaned.
  3. Deep voids are packed so the mastic is the right thickness.
  4. Sand mastic is mixed and applied by hand, then shaped to the joint.
  5. The mastic is finished to sit tidily against the stone or brick.

How to prepare

  • Tell us if parking is tricky
  • Move anything stored near the joints
  • Keep pets and children clear of the area while we work

Getting a quote

To get a quote, email us at info@mrmastic.co.uk with the location and a short description of the problem. We will give you a clear price before any work starts.

Get a quick quote

Related advice

Windows and doors in South Gyle

South Gyle is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. Historic houses like Caroline Park (about 4 miles north-east) are a reminder that the area around South Gyle has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.

If you look after a building such as Forrester High School, its window and door frames need their mastic kept sound, just like a home’s. Historic houses such as Caroline Park, about 4 miles north-east, show how far back building around South Gyle goes, and older homes nearby need a sealant that suits their walls.

South Gyle is about 3 miles west of West End, in Edinburgh. Jobs in South Gyle get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Across Edinburgh, we cover 175 places, and South Gyle is one of them.

Jobs for sand mastic in EH12 and EH11 works the same way as everywhere else we cover. If you need sand mastic at a property on Gylemuir Road, Gylemuir Lane and Craigs Avenue or anywhere close by, our applicators can take on the job. We also cover Wester Broom (1 mile north-east), Corstorphine (1 mile north-east), Broomhouse (1 mile south-east), Sighthill (1 mile south-east) and Carrick Knowe (1 mile east). Within a short drive, we also cover Edinburgh (4 miles east), Leith (6 miles north-east), Bonnington (5 miles north-east), Greenside (5 miles east), Broughton (5 miles east) and Bellevue (4 miles north-east).

What’s near South Gyle

Typical jobs here are in homes near The Torfin pub and Saughton Park. There’s a railway station in South Gyle itself: South Gyle station. A little further out are The Gyle Shopping Centre (0.7 miles north-west) and Corstorphine Hospital (1.2 miles north-east). Not far away are The New Leaf Co-op and Corstorphine Hill.

Map of South Gyle © OpenStreetMap contributors

How to look after the new joints

Good habits help new joints last longer. A few tips:

  • Ask the planning authority about consent for listed or conservation-area homes
  • Renew mastic before redecorating the windows
  • Keep sills and gutters clear so water drains away
  • Have rotten timber repaired before new mastic goes in

Avoid painting over the new mastic, as traditional guidance advises. Ask us before any decorating around it.

Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.

Honest limits

In fairness, there are a few things sealant will not fix:

  • Rotten sashes, sills or window boxes (a joiner’s job)
  • Putty and glazing repairs
  • Planning or listed building consent (your local planning authority decides)

If in doubt, email us at info@mrmastic.co.uk and we’ll say what we think before booking.

Joints and surfaces we work on

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

How we quote for sand mastic

Your quote is based on your job. We take into account:

  • Any mould that needs treating
  • The type of sealant required
  • How many rooms, windows or areas are involved
  • When we can work, for business premises

Leaving a failed joint usually makes the job bigger, not smaller, 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 will give you an honest view and a quote.

What to tell us for a quote

Before you ask for a quote, have a think about:

  • Whether it’s a home or a business
  • What’s wrong with the joints now
  • Where the property is
  • Any previous sealing or DIY work

Want a quote for sand mastic? Please email us at info@mrmastic.co.uk with a few details. We will explain what we’d do and give you a clear price before any work starts.

Work for landlords, hotels and businesses

Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.

Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.

DIY sealant or a professional job?

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.

South Gyle questions

Do you work for landlords with property near South Gyle station?

Yes, rental work is part of what we do. Just drop us a line at info@mrmastic.co.uk and tell us about the property, and we’ll give you a clear quote.

How do repairs to the shared parts of a tenement in South Gyle get organised?

Most tenements arrange shared repairs through the owners or a property factor. The Tenements (Scotland) Act 2004 covers the common parts where the deeds don’t, and we can quote for the factor or the owners directly.

Do you guarantee sand mastic work?

Our one-year guarantee covers every job, sand mastic included.

Which products do you use?

We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we’ll explain our choice.

Can I choose the sealant colour?

Normally, yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before we start.

Where do you work from?

Our base is Crawley. We work across South East England, London and Scotland.

Is consent needed for window work on a listed home?

Yes, it’s worth checking. Ask your local planning authority whether consent is needed for listed or conservation-area properties.

Are you fully insured?

Yes. Full insurance covers our work, and we can confirm the details when we quote.

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