Edinburgh · Scotland
Sand mastic for sash & case windows in Westfield, Edinburgh
Professional sand mastic in and around Westfield, with every bit of old sealant taken out first.
- Tired mastic found when preparing windows for paint
- Old sand mastic that has cracked, crumbled or fallen out
- Draughts and rain around sash boxes
Sand mastic in Westfield, done properly
Sand mastic does not last for ever and gaps open up round the frame. Renewing it closes the gap and tidies the surround. We’re often asked to deal with a silicone bead on a sash window that spoils the look and draughts and rain around sash boxes, across timber door frames, sash and case windows and stone surrounds.
Older stone-built tenements in Scotland’s cities were built with sash and case windows, though many have since been replaced. In Westfield, as anywhere, the mastic between frame and wall is what stops draughts and rain getting in.
The work is covered for a year after we finish. If anything isn’t right with it, drop us a line at info@mrmastic.co.uk.
- Location
- Westfield (EH11, EH12, EH14)
- Region
- Edinburgh
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Why deal with it now?
Filling over old, loose mastic does not last. We remove the loose material first so the new work lasts. Wind-driven rain gets into any failed joint on the outside of a city building, and in a tall building in Westfield, damp can travel a long way before it shows.
Combining jobs into one visit generally makes better use of the time than several visits. You will get one clear quote for the whole job.
Why us?
- Any old sealant cut out fully, not covered over
- Full insurance on every job
- 4.9 on Google from 180+ five-star reviews
- An ARBOMaster approved applicator
See our cost guide and customer reviews.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Questions from Westfield
Does living near the coast affect sand mastic in Westfield?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. Walls facing the sea are generally the first to need attention.
Who arranges sealant work on the shared parts of a tenement in Westfield?
It usually goes through the owners together, or through the factor if the building has one. The Tenements (Scotland) Act 2004 covers the common parts where the deeds do not, and we can quote for the factor or the owners directly.
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 are you based?
We are based in Crawley, and we work across South East England, London and Scotland.
How do I get a quote for sand mastic in Westfield?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
What do you need from me for a quote?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply drop us a line at info@mrmastic.co.uk.
Is it possible to paint over sand mastic?
Traditional guidance is not to paint over sand mastic. Ask us before you decorate around it and we’ll advise.
Do you work for letting agents?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels.
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Renew mastic before redecorating the windows
- Avoid heavy scraping on the mastic joint
- Avoid patching sand mastic with silicone
- Find out about consent before window work on a listed home
Keep gutters and sills clear so water runs away from the surround. Constant wetting wears the mastic faster.
An open joint round the box lets weather through. Left, the gap tends to get bigger.
Nearby places to Westfield
More services for Westfield
Westfield homes and the weather
Westfield is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That’s hard on the mastic around older windows and doors, especially on the side facing the sea. Under the Tenements (Scotland) Act 2004, shared parts of a tenement, such as the roof and outside walls, are looked after by the owners together, often through a property factor. Who owns the windows depends on the title deeds.
If you look after a building such as Balgreen Primary School, the mastic around its windows and doors needs looking after like any other building’s. Whitefoord House, about 2.7 miles east, is one of the historic houses in the wider area around Westfield.
Westfield is about 1 mile west of Edinburgh, in Edinburgh. Jobs in Westfield get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. 175 places in Edinburgh are on our list, large and small.
Jobs for sand mastic in EH11, EH12 and EH14 works the same way as everywhere else we cover. We cover properties on Gorgie Road, Baird Avenue and Shandon Road and the roads around them. Other places close to Westfield include Gorgie (1 mile south-east), Saughtonhall (1 mile north-west), Shandon (1 mile south-east), Roseburn (1 mile north) and Murrayfield (1 mile north). Within a short drive, we also cover Leith (4 miles north-east), Bonnington (3 miles north-east), Gayfield (3 miles north-east), Pilrig (3 miles north-east), North Leith (3 miles north-east) and Dumbiedykes (3 miles east).
Local landmarks in Westfield
Around Westfield, our work takes us to homes and buildings near Scotus Academy, Saughton Park and Gabrielle Keiller Library and the streets around them. Other local landmarks include St George's School (0.9 miles north) and Roseburn Bar (0.6 miles north-east). The closest station to Westfield is Slateford station, about 0.8 miles south. Well-known places in the area include Murrayfield Experience (less than half a mile north) and Royal Edinburgh Hospital (1.2 miles south-east). The countryside around Westfield includes Dunsapie Loch and Craiglockhart Hill.
What we’re called out for in Westfield
Some old mastic was never deep enough. A thin layer doesn’t hold well, which is why we pack deep voids first and get the depth right.
Common reasons people contact us include:
- A silicone bead on a sash window that spoils the look
- Draughty sash windows at the surround
- Mastic dropping out of the joint
- Mastic round period door frames that has failed
Rented homes near Slateford station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
What to look for in a quote
- How hidden problems are handled
- Whether they seal over old material or remove it
- How the joint is cleaned and prepared
- Which sealant they’ll use, and why
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.
What happens on the day
On the day, we look over the joints with you first, so there are no surprises. Surfaces next to the work are protected before any work begins. Most jobs take a few hours per window, depending on the condition of the joints. In a Scottish city, a lot of jobs are in tenement flats, up a common stair from a shared close. In Westfield, it helps to know the floor, the door entry arrangements and the nearest parking.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
- Tell us about any water getting in
Get a quote
Every job is quoted individually, so start by telling us what you need. Just drop us a line at info@mrmastic.co.uk with the details.
Read more
When something else is needed
We won’t take on work that will not last, so these are the limits:
- Putty and glazing repairs
- Decayed frames that need repair
- Damaged stone surrounds
Not sure which it is? You can email us at info@mrmastic.co.uk and we will tell you honestly.
What we seal
- Sash and case windows
- Brick reveals
- Stone surrounds
- Period & listed homes
- Timber door frames
- Tenement windows