East Lothian · Scotland
Sand mastic for sash & case windows in Preston, East Lothian
Window and door surrounds in Preston need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Mastic dropping out of the joint
- Tired mastic found when preparing windows for paint
- Modern sealant on a period surround
Sand mastic in Preston
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 work on timber door frames, sash and case windows and period & listed homes, and common reasons people get in touch are silicone on a period window that looks wrong and old cement repairs round a window that have failed.
Many older Scottish homes still have timber windows set into stone walls. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.
- Where
- Preston (EH40)
- Region
- East Lothian
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Work for landlords, hotels and businesses
We work for letting agents and landlords as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Frames and glazing around Preston
Preston 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. 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.
If you live in an older home near Prestonkirk Parish Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Preston is about 5 miles west of Dunbar, in East Lothian. Our applicators cover sand mastic for homes and businesses in Preston, as part of our work across East Lothian. 48 places in East Lothian are on our list, large and small. For nearby work, see our Edinburgh page, about 22 miles away.
Postcode districts we cover here for sand mastic: EH40. Neighbouring places we cover for sand mastic include Phantassie (1 mile south), Smeaton (1 mile north-west), East Linton (1 mile south-west), Stenton (3 miles south-east) and Garvald (4 miles south). Larger places within reach include Haddington (6 miles south-west), Dunbar (5 miles east), Tranent (12 miles west), North Berwick (5 miles north-west), Prestonpans (13 miles west) and Cockenzie and Port Seton (12 miles west).
Around Preston
Locally, jobs take us to homes and businesses close to The Crown & Kitchen pub. The closest station to Preston is East Linton station, roughly 0.7 miles south-west. Other landmarks nearby include Hailes Castle (2 miles south-west) and National Museum of Flight (2.7 miles west). For a walk, there’s Traprain Law.
FAQs for Preston
Is sand mastic in a coastal place like Preston 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.
Do you cover smaller places like Preston?
Yes. Preston is within the area we cover, which takes in towns, villages and rural addresses. We work across all of Scotland. Just mention lanes, gates or anything else about the route when you book.
Should I check with the council before work on a listed or conservation-area home?
Your local planning authority is the one to ask. They’ll tell you if consent is needed.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. Our applicators cover Preston.
What does sand mastic cost?
It depends on the job, so we quote each one individually. To get one, drop us a line at info@mrmastic.co.uk with a short description of the job.
Do you take out the old sealant first?
Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
Can landlords and businesses book you?
Yes, often. We can quote for several properties at once.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
What sealant work cannot fix
Sealant isn’t the answer to every problem, and we’d rather say so up front. Sealant won’t put right:
- Putty and glazing repairs
- Sashes that rattle, stick or will not open
- Rotten sashes, sills or window boxes (a joiner’s job)
Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly before you book.
Surfaces we seal
- Period & listed homes
- Stone surrounds
- Brick reveals
- Tenement windows
- Timber door frames
- Sash and case windows
What affects the quote in Preston
Jobs vary more than people expect. The main factors:
- Whether the work is at height
- The old material and how stubborn it is
- Any working-time requirements on site
- How much there is to do
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, drop us a line at info@mrmastic.co.uk for an honest opinion and a quote.
Helping us quote
Photos help, but a description is a good start. Please mention:
- Pictures of the joints, sent by email
- How we’d reach the joints
- How many joints, rooms or windows are involved
- What the problem is, such as mould, gaps, leaks or cracking
Want a quote for sand mastic? Please send an email to info@mrmastic.co.uk and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Do you need sand mastic in Preston?
Timber frames move with the seasons. That movement opens up the mastic joint over time.
The most common problems we see are:
- Draughty sash windows at the surround
- A silicone bead on a sash window that spoils the look
- Mastic round period door frames that has failed
- Failed mastic on an exposed elevation
Letting a property close to East Linton station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
What your quote should include
- What happens if the job turns out different
- Which sealant they’ll use, and why
- What the quote includes, VAT included or not
- Whether you can choose the colour
DIY versus a professional finish
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
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.
Aftercare tips
To keep the joints looking good and working properly:
- Avoid patching sand mastic with silicone
- Ask us before painting near the mastic
- Check with your local planning authority if your home is listed
- Have rotten timber repaired before new mastic goes in
Leave the new mastic unpainted, which is the traditional advice. If you are redecorating, ask us first.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber, which can lead to rot.
Places near Preston
Also in Preston
How the visit works
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself generally takes a few hours per window, depending on the condition of the joints, depending on the size of the job. Somewhere like Preston may be a longer drive, and the journey is planned ahead. Tell us about tracks, gates, a ferry crossing or anything unusual about getting there.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- 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.
How to prepare
- Try not to wet indoor joints just before the visit
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
Ask for a quote
To get a quote, send an email to info@mrmastic.co.uk with the location and a short description of the problem. You’ll have a clear quote before work begins.