Edinburgh · Scotland
Sand mastic for sash & case windows in Newhaven, Edinburgh
Sand mastic for Newhaven, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Open joints round the window box
- Draughts and rain around sash boxes
- Modern sealant on a period surround
When it isn’t the sealant
New sealant can’t fix everything, and we will tell you before we start. Sealant will not put right:
- Masonry that needs repairing
- Timber that has rotted
- Whether work needs listed building consent
If you are not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer.
Joints and surfaces we work on
- Stone surrounds
- Period & listed homes
- Brick reveals
- Sash and case windows
- Timber door frames
- Tenement windows
About our sand mastic in Newhaven
Sand mastic does not last for ever, leaving gaps round the window. Renewing it closes the gap and tidies the surround. If you have mastic round period door frames that has failed and wind and rain getting in round a sash window, we can help, whatever the surface.
Newhaven is in one of Scotland’s four big cities, where many older buildings are sandstone or granite. Natural stone around older windows needs a sealant that will not mark or attack it, so acetoxy silicones, which can attack some stone, are best avoided.
Whatever the size of the job, you get the same 12-month guarantee.
- Place
- Newhaven (EH6, EH5, EH7)
- Region
- Edinburgh
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What affects the cost of sand mastic
For a quick quote, just ask. What matters most is:
- Whether there’s mould to deal with
- How much there is to do
- The type of sealant required
- The number of rooms or windows
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
- The type of property
- Pictures of the joints, sent by email
Need a quote? Please drop us a line at info@mrmastic.co.uk and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Aftercare tips
Aftercare is simple, and it makes a real difference:
- Do not paint over the new mastic
- Make sure water runs off the sill
- Plan mastic work ahead of painting
- Take care around the mastic when scraping paint
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at rather than patching it.
Gaps round a sash box let in draughts and rain. Left, the gap tends to get bigger as more mastic falls out.
FAQs for Newhaven
Is sand mastic in a coastal place like Newhaven any different?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Can you help a landlord with a rental near Edinburgh Waverley station?
Yes, rental work is part of what we do. You can email us at info@mrmastic.co.uk with the address and a few details, and we’ll give you a fixed price before work begins.
Is consent needed for window work on a listed home?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish, but they decide.
Where are you based?
Mr Mastic is based in Crawley. We cover Newhaven and the rest of Edinburgh, along with the rest of our area.
Is it possible to paint over sand mastic?
Sand mastic is normally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
How much does sand mastic cost in Newhaven?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
What guarantee comes with the work?
Our one-year guarantee covers every job, sand mastic included.
Will you leave a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Work for landlords, hotels and businesses
Housing providers, facilities teams and property managers book us too in Newhaven and across Edinburgh. We can quote a run of properties together, and we are fully insured for the work.
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
Towns and villages near Newhaven
What else we do in Newhaven
What happens if it’s left?
New mastic over crumbling mastic won’t hold. We remove the loose material first so the new work lasts. In a tenement flat in Newhaven, a failed seal is rarely just your problem: a leak can come through the ceiling below, and gaps in shared walls or fire-rated joints matter to every flat.
The cost depends on the amount of work, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts.
What you get with us
- Every job guaranteed for a year
- Old sealant always removed completely
- Rated 4.9 stars on Google
- Homes, businesses and hotels
See our cost guide or customer reviews.
The process
There isn’t much for you to do on the day. Point us to the joints and we’ll get on with it. The work itself takes a few hours per window, depending on the condition of the joints. Inside a flat in Newhaven, the job is planned with you; outside, shared parts may need the factor or other owners involved. It helps to know which it is when you get in touch.
- First, we look at the surrounds with you and agree what needs doing.
- Old, loose mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The finish is dressed so it sits neatly against the stone or brick.
How to prepare
- Clear items away from the joints we are working on
- Mention if the joints have been sealed before
- Mention any parking rules near the property
How to get a quote
For a quote, send an email to info@mrmastic.co.uk with the location and a short description of the problem. You will have a clear quote before work begins.
Advice
Windows and doors in Newhaven
Newhaven 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 is hard on the mastic around older windows and doors, especially on the side facing the sea. Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that.
Letting a property close to Edinburgh Waverley station? Then older sash windows in a rental need their mastic kept sound to keep the weather out. In the older streets around Newhaven Parish Church, the joint between an old wall and a newer frame is usually the first place rain gets in.
Newhaven is about 3 miles north of Edinburgh, in Edinburgh. Jobs in Newhaven get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Newhaven is one of 175 places in Edinburgh we cover.
Work in EH6, EH5 and EH7 is quoted and booked the same way as anywhere else. Local streets include York Road, Park Road and Ferry Road, and we cover them all. Newhaven is on the A901, so it’s easy for us to get to with everything needed for sand mastic. Neighbouring places we cover for sand mastic include Victoria Park (1 mile south), North Leith (1 mile south-east), Bonnington (1 mile south-east), Powderhall (1 mile south) and Leith (1 mile east). Larger places within reach include Edinburgh (3 miles south), West Coates (3 miles south-west), Sciennes (3 miles south), Merchiston (3 miles south), Newington (3 miles south) and Queensferry (8 miles west).
Around Newhaven
We work in homes and buildings around Drummond Community High School, Starbank Park and McDonald Road Library and the streets around them. The closest station to Newhaven is Edinburgh Waverley station, about 1.9 miles south. Nearby you will also find History of Education Centre aka Victorian Schoolroom (less than half a mile north) and Leith Hospital (0.7 miles south-east). For a walk, there’s Dunsapie Loch and The New Leaf Co-op.
When to call us in Newhaven
Paint, silicone or cement used over old mastic causes problems. They don’t suit the joint, and they usually need raking out.
The most common problems we see are:
- Gaps between timber frames and stone or brick
- Window mastic to renew ahead of painting
- Cement or filler used on old window joints that has cracked
- Draughts and rain around sash boxes
Managing a site like Trinity Academy? Then larger buildings have plenty of frames, and the mastic around each one ages.
What your quote should include
- Who turns up on the day
- What the quote includes, VAT included or not
- What happens if the job turns out different
- Which colour the sealant will be