East Lothian · Scotland
North Berwick Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in North Berwick, with a one-year guarantee on every job. Ask us for a quote.
- Patchy fillers round a sash window
- Mastic round period door frames that has failed
- Gaps between timber frames and stone or brick
Sand mastic in North Berwick
For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. We work on period & listed homes, brick reveals and tenement windows, and the jobs we see most are mastic that needs renewing before redecorating and mastic round period door frames that has failed.
Across smaller places in Scotland, homes range from stone and harled cottages to newer houses, many standing in the open. Exposed frames and sills take the full force of wind-driven rain, so the mastic there works hard.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- North Berwick (EH39)
- Region
- East Lothian
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Aftercare tips
Looking after new joints is easy:
- Inspect the joints round the windows every year or so
- Ask the planning authority about consent for listed or conservation-area homes
- Ask a joiner to look at soft timber first
- Plan mastic work ahead of painting
Make sure water drains away from the window surround. Water sitting against the mastic shortens its life.
Renewing mastic before redecorating saves doing it twice. Painting over failed mastic hides the problem for a while.
How the job changes by surface
Timber door frames
Doors face weather and wear, so their mastic can fail sooner. We rake it out and renew it.
Period and listed homes
Period homes look their best with traditional materials, and sand mastic is one of them.
Work for landlords, hotels and businesses
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
The process
You don’t need to clear the whole room or building before we come, only the area right around the joints. We protect the rest, and the job takes a few hours for a single window, longer for several for a typical job. Outside jobs in North Berwick need a dry day, because sealant won’t bond to a wet joint, so external jobs may need to move if the day turns wet. Indoor work goes ahead whatever the weather.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
How to prepare
- Keep pets and children clear of the area while we work
- Let us know if you’ve seen damp or leaks
- Move anything stored near the joints
Get a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll take it from there.
Read more
What sand mastic looks like in North Berwick
North Berwick is close to 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.
Letting a property close to North Berwick station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
North Berwick is about 18 miles east of Kirkcaldy, in East Lothian. North Berwick gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Our area takes in 48 places across East Lothian, large and small. You can also see our page for Edinburgh, about 20 miles away.
Our applicators cover all of EH39 for sand mastic. We cover properties on Station Road, High Street and Market Place and the roads around them. With the A198 and B1346 close by, North Berwick is simple for us to get to for sand mastic. We also cover the places around North Berwick: Kingston (2 miles south-west), Dirleton (2 miles west), Whitekirk (4 miles south-east), Gullane (4 miles west) and Drem (4 miles south-west). Within a short drive, we also cover Musselburgh (15 miles south-west), Haddington (7 miles south), Dunbar (9 miles south-east), Tranent (12 miles south-west), Prestonpans (12 miles south-west) and Cockenzie and Port Seton (11 miles south-west). Being one of East Lothian’s larger places, North Berwick has every kind of property, from flats to offices.
Landmarks near North Berwick
There’s a railway station in North Berwick itself: North Berwick station. Well-known places in the area include Coastal Communities Museum (0.5 miles north-east) and Edington Cottage Hospital (less than half a mile east). Not far away are North Berwick Law.
Signs you need sand mastic in North Berwick
Most of it is simply age. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
Most people get in touch when they notice one of these:
- Cracked mastic round a front door frame
- Mastic that needs renewing before redecorating
- Old cement repairs round a window that have failed
- Open joints round the window box
Managing a site like North Berwick High School? Then its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- How the colour is chosen
- Is VAT in the price?
- How long to leave it before use
- What guarantee comes with the work
Questions from North Berwick
Does living near the coast affect sand mastic in North Berwick?
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 North Berwick within the area you cover?
Yes, North Berwick is covered. Our work covers the whole of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures.
Do you guarantee sand mastic work?
Every job comes with our 12-month guarantee, and we are fully insured.
Do you do commercial work?
Yes. We have worked for hotels, offices and other businesses.
Is sand mastic better than silicone for my windows?
We’ll help you decide. Sand mastic suits many period homes, and modern sealants suit newer frames.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
What do you need from me for a quote?
Just the basics: the address or postcode, what’s wrong and any access issues. After that, simply send an email to info@mrmastic.co.uk.
Also in North Berwick
Why act early in North Berwick
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and give you a clear price before we start.
Why us?
- One-year guarantee on every job
- Rated 4.9 stars on Google
- We are fully insured
- Domestic, commercial and hotel work
Take a look at what affects the cost and what customers say.