East Lothian · Scotland
Sand mastic for sash & case windows in Kingston, East Lothian
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for Kingston, backed by a 12-month guarantee. Call for a quick quote.
- Gaps where the frame meets the masonry
- Mastic dropping out of the joint
- Gaps round a timber door in stone or brick
Sand mastic in Kingston
Sand mastic doesn’t last for ever, leaving gaps round the window. We rake it out and renew it so the surround looks right again. If you have gaps where the frame meets the masonry and crumbling sand mastic round a window, we can put it right.
Mastic can only go onto a dry joint, so outside work in Kingston depends on the weather, and longer journeys are planned in advance. Tell us about access to all the windows and doors, upstairs included.
Every job is covered by our 12-month guarantee.
- Place
- Kingston (EH39)
- Region
- East Lothian
- Cover
- One year on every job
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
Leave it or put it right?
New mastic over crumbling mastic won’t hold. We remove the loose material first so the new work lasts. In a place like Kingston, small leaks are easy to put off, but water through a failed joint keeps working away until it’s fixed.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
What you get with us
- Rated 4.9 stars on Google
- ARBOMaster approved applicator
- Old sealant always removed completely
- Arbo and Everbuild products
Take a look at how sealant jobs are priced or what customers say.
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Make sure water runs off the sill
- Keep modern sealant off the mastic
- Check the mastic when you check the paintwork
- Find out about consent before window work on a listed home
Keep paint scrapers and sanders off the mastic when redecorating. It can be damaged by heavy scraping.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
What we do, step by step
At the end, we look at the finished work together and explain the cure time. The visit itself usually takes a few hours for a single window, longer for several, depending on the size of the job. Outdoor work around Kingston depends on the weather, as sealant needs a dry surface, so external jobs may need to move if the day turns wet. Work indoors isn’t affected.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Before we arrive
- Mention any parking rules near the property
- Keep pets and children clear of the area while we work
- Move anything stored near the joints
Ask for a quote
Getting a quote is simple: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand.
Advice
What sand mastic looks like in Kingston
Kingston 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. Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
Managing a site like North Berwick High School? Then the mastic around its windows and doors needs looking after like any other building’s.
Kingston is about 6 miles north of Haddington, in East Lothian. From the centre of Kingston to the outskirts, sand mastic is available for homes and businesses alike. Our East Lothian coverage runs to 48 places, and Kingston is one of them. Our Edinburgh page covers work nearby, about 19 miles away.
Every address in EH39 is within our area for sand mastic. We also cover Dirleton (1 mile north-west), North Berwick (2 miles north-east), Drem (2 miles south-west), Gullane (3 miles west) and Athelstaneford (3 miles south). We also work in nearby towns such as Musselburgh (13 miles south-west), Haddington (6 miles south), Dunbar (9 miles east), Tranent (10 miles south-west), Prestonpans (10 miles south-west) and Cockenzie and Port Seton (9 miles south-west).
Local landmarks in Kingston
The closest station to Kingston is North Berwick station, roughly 1.9 miles north-east. Nearby you’ll also find Edington Cottage Hospital (2.1 miles north-east) and Dick Galloway Archery Museum (1.3 miles west). Open spaces near Kingston include Marl Loch and North Berwick Law.
DIY versus a professional finish
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
How we quote for sand mastic
We do not publish a price list. The quote depends on:
- How many areas need sealing
- Any working-time requirements on site
- Which sealant suits the joint
- Access and height
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
What we need to know
There’s no need for technical detail. Just tell us:
- Pictures of the joints, sent by email
- Any access issues, like height or stairs
- If someone has resealed it before
- The address or postcode of the job
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved before giving you a price.
Work for landlords, hotels and businesses
If you manage several properties in or around Kingston, several properties can go on one quote. Just tell us the addresses and what each one needs.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Also near Kingston
Other services in Kingston
Questions from Kingston
Is sand mastic in a coastal place like Kingston any different?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. The right product, a clean joint and the right depth all help it cope.
Is Kingston within the area you cover?
Yes, we do. We work across all of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
I rent my home. Can I book you?
Of course. Check with your landlord; we can send the quote to them too.
Can you replace silicone on a period window with sand mastic?
Yes, it’s a common request. The old silicone has to come out completely so the mastic can sit properly.
Can I do it myself?
It depends on the job. High-level, external movement and fire-rated joints are professional jobs.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint.
Can I choose the sealant colour?
We help you choose a colour that suits. The product needed can limit the range.
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 will talk you through it.
When to call us in Kingston
Paint, silicone or cement used over old mastic causes problems. They do not suit the joint and we normally remove them.
People generally contact us after spotting one of these:
- Cracked mastic round a front door frame
- Open joints round the window box
- Mastic dropping out of the joint
- Failed mastic on an exposed elevation
For landlords with property near North Berwick station, any sash windows need sound mastic to keep draughts and rain out.
What your quote should include
- Is the old sealant removed completely?
- Whether the sealant suits the joint
- Which colour the sealant will be
- What happens if the job turns out different