Edinburgh · Scotland

Longstone Sand Mastic

We cover Longstone 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.

  • Failed mastic on an exposed elevation
  • Mastic round period door frames that has failed
  • Draughts and rain around sash boxes

Trusted sand mastic in Longstone

Sand mastic for homes and businesses in Longstone

For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Like-for-like sand mastic is often the preferred finish. We are often asked to deal with mastic worn away on windows facing the weather and gaps round a timber door in stone or brick, on sash and case windows, period & listed homes and stone surrounds.

Longstone 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 usually means a neutral-cure product or a traditional sand mastic rather than an acetoxy silicone.

Our work is backed for twelve months, and the guarantee is the same wherever you are.

Location
Longstone (EH14, EH11, EH13)
Region
Edinburgh
Cover
12 months on all our work
Price
A clear quote up front
Email
info@mrmastic.co.uk
Last updated
26 October 2026
Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house

Landlord and commercial work in Longstone

Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.

Housing providers, facilities teams and property managers book us too in Longstone and across Edinburgh. Several sites can be quoted together.

What we do, step by step

We keep the work tidy and contained to the area we’re working on. The job generally takes anything from a few hours to a full day, depending on how many windows, and we tell you how long to leave it before we go. In a Scottish city, a lot of jobs are in tenement flats, up a common stair from a shared close. In Longstone, it helps to know the floor, the door entry arrangements and the nearest parking.

  1. First we agree which joints need doing.
  2. Old mastic and any loose material are raked out.
  3. Deep gaps are packed so the mastic sits at the right depth.
  4. The sand mastic is mixed and pressed into the joint by hand.
  5. The surface is finished to suit the stone or brick.

Getting ready for the visit

  • Let us know about earlier repairs to the joints
  • Move anything stored near the joints
  • Keep children and pets away from the work area

Getting a quote

Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you’re ready, send an email to info@mrmastic.co.uk.

Get a quick quote

Read more

Keeping the joints in good condition

Joint life depends on how it’s used and looked after. Here’s what we suggest:

  • Keep modern sealant off the mastic
  • Take care around the mastic when scraping paint
  • Plan mastic work ahead of painting
  • Look over the window mastic once a year

Leave the new mastic alone while it firms up. It skins over quickly, but takes longer to harden fully.

An open joint round the box lets weather through. The longer it’s left, the more the joint opens as more mastic falls out.

What sealant work can’t fix

We won’t take on work that won’t last, so here’s what sealant cannot put right:

  • Masonry that needs repairing
  • Planning or listed building consent (your local planning authority decides)
  • Cracked or broken glass

If in doubt, drop us a line at info@mrmastic.co.uk and we will say what we think before you book.

Where we work in Longstone

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

Sand mastic in Longstone: local notes

Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic. Edinburgh’s Old and New Towns are a UNESCO World Heritage Site, and the Georgian New Town is known for its sash windows. For listed homes and conservation areas, check with the council before changing how windows or walls look.

Historic houses such as Whitefoord House, about 3.8 miles north-east, show how far back building around Longstone goes. Rented homes near Kingsknowe station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.

Longstone is about 3 miles south-west of Edinburgh, in Edinburgh. Longstone gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our Edinburgh coverage runs to 175 places, and Longstone is one of them.

We cover every part of EH14, EH11 and EH13 for sand mastic and the streets around it. That includes homes and businesses on Redhall Road, New Mart Road and Dumbryden Road and the roads around them. With the A71 close by, Longstone is simple for us to get to. Other places close to Longstone include Parkhead (1 mile north-east), Redhall (1 mile east), Kingsknowe (1 mile south), Saughton (1 mile north-west) and Chesser (1 mile north-east). We also work in nearby towns such as Edinburgh (3 miles north-east), Leith (5 miles north-east), Bonnington (5 miles north-east), Greenside (4 miles north-east), Broughton (4 miles north-east) and Bellevue (4 miles north-east).

What’s near Longstone

Locally, jobs take us to homes and businesses close to Saughton Park, Balgreen Primary School and Firrhill High School and the streets around them. Longstone has its own railway station: Kingsknowe station. A little further out are Craiglockhart Hydropathic (0.9 miles south-east) and The Gyle Shopping Centre (2.4 miles north-west). For a walk, there’s Craiglockhart Hill and The New Leaf Co-op.

Map of Longstone © OpenStreetMap contributors

Should I try it myself first?

If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.

Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.

Common problems we fix in Longstone

Age is the main cause. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.

Look out for any of the following:

  • Wind and rain getting in round a sash window
  • Failed mastic on an exposed elevation
  • Gaps round a timber door in stone or brick
  • Open joints round the window box

Schools such as Merchiston Castle School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.

Comparing quotes

  • What guarantee comes with the work
  • Who turns up on the day
  • How the colour is chosen
  • What product goes in the joint

10 questions to ask before you book

What the job involves on each surface

Stone surrounds

The stone is treated with care while raking out the old mastic.

Period and listed homes

Sand mastic is the like-for-like choice for many period homes. On listed buildings, check with your planning authority first.

Common questions in Longstone

How is work on the outside of a tenement in Longstone normally arranged?

Most tenements arrange shared repairs through the owners or a property factor. The Tenements (Scotland) Act 2004 sets the rules for common parts if the deeds do not.

Can you help a landlord with a rental near Kingsknowe station?

Yes, rental work is part of what we do. You can send an email to info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before work begins.

Will it make a mess?

No. The area is protected while we work and cleaned up afterwards.

How long does the job take?

As a guide, most jobs take anything from a few hours to a full day, depending on how many windows. Larger jobs naturally take longer.

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, and we’ll explain why.

Where do you work from?

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

Are you fully insured?

Yes. We’re fully insured for every job we do.

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.

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