Edinburgh · Scotland
Sand mastic for sash & case windows in Northfield, Edinburgh
Specialist sand mastic for Northfield: careful preparation, the right product and tidy work. Call for a quick quote.
- Weathered mastic on the most exposed windows
- Old cement repairs round a window that have failed
- Cracked mastic round a front door frame
For landlords and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
About our sand mastic in Northfield
Sand mastic is the traditional way to point the gap between a timber window frame and the stone or brick around it. It’s made from sand and a linseed-oil-based binder and built up by hand. On older homes, it suits the building far better than silicone. If you are dealing with a silicone bead on a sash window that spoils the look and cement or filler used on old window joints that has cracked, we can help, on stone surrounds, sash and case windows and timber door frames alike.
Tenement flats in Scotland’s cities often have windows high above the street, where failing mastic is easy to miss. Access is the first thing to plan for a job in Northfield, and in a tenement the outside of the building may be a shared repair.
All of our work is guaranteed for twelve months.
- Location
- Northfield (EH8, EH15, EH7)
- Wider area
- Edinburgh
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
Why deal with it now?
Silicone might seem the quicker option, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. Private landlords in Northfield must meet the Repairing Standard, and damp or leaks can fall short of it, so it’s worth fixing failed sealant before a tenant reports it.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What you get with us
- Anti-fungal silicone where joints get wet
- Arbo and Everbuild products
- Experience in homes, commercial sites and hotels
- Rated 4.9 stars on Google
Read what affects the cost or customer reviews.
Frames and glazing around Northfield
Northfield 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. Sash and case windows are common in older Scottish homes, often pointed into the wall with traditional sand mastic.
Schools such as Portobello High School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. For landlords with property near Brunstane station, any sash windows need sound mastic to keep draughts and rain out.
Northfield is about 3 miles east of Edinburgh, in Edinburgh. Homes, rented property, offices and hotels in Northfield can book us for sand mastic, old or new, large or small. The work is guaranteed for a year. 175 places in Edinburgh are on our list.
Our applicators cover all of EH8, EH15 and EH7 for sand mastic. If you need sand mastic at a property on Durham Avenue, Parker Avenue and Paisley Avenue or anywhere close by, our applicators can take on the job. You will find Northfield on the A1 and A1140, which makes it straightforward to reach. We also cover the places around Northfield: Mountcastle (1 mile north-east), Piershill (1 mile north-west), Willowbrae (1 mile west), Craigentinny (1 mile north) and South Portobello (1 mile east). We also work in nearby towns such as Edinburgh (3 miles west), Leith (3 miles north-west), Silvermills (3 miles west), West End (3 miles west), Stockbridge (3 miles west) and North Leith (3 miles north-west).
Local landmarks in Northfield
We work in homes and buildings around Abercorn Park, Portobello Library and Public House. The nearest railway station is Brunstane station, roughly 1.4 miles east. Well-known places in the area include Craigmillar Castle (1.7 miles south) and Cameron Toll Shopping Centre (1.9 miles south-west). Open spaces near Northfield include The New Leaf Co-op and Whinny Hill.
How it works
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. Once we have agreed what’s being done, we protect the area and start. Most jobs take a few hours per window, depending on the condition of the joints. For a tenement in Northfield, work inside your flat is between us and you, while shared parts may need the factor or neighbours to agree. Tell us which applies when you book.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- We pack any deep voids first.
- 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
- Tell us if parking is tricky
- Let us know if you’ve seen damp or leaks
- Mention any tricky access
How to get a quote
For a quote, send an email to info@mrmastic.co.uk and tell us where the job is and what the problem looks like. You’ll have a clear quote before work begins.
Advice
Common problems we fix in Northfield
Shallow joints are a common cause. A thin layer does not hold well, which is why we pack deep voids first and get the depth right.
It’s worth asking for a quote if you see:
- Wind and rain getting in round a sash window
- Mastic worn away on windows facing the weather
- Old sand mastic that has cracked, crumbled or fallen out
- Old cement repairs round a window that have failed
Homes close to Willowbrae Parish Church include some older properties, and the joint between an old wall and a newer frame is generally the first place rain gets in.
Before booking anyone
- Is the old sealant removed completely?
- How the colour is chosen
- Whether VAT is included
- How the joint is cleaned and prepared
DIY sealant or a professional job?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
FAQs for Northfield
I let a flat near Brunstane station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just email us at info@mrmastic.co.uk with the address and what needs doing, and we will send you a clear quote.
How do repairs to the shared parts of a tenement in Northfield get organised?
The owners of the flats normally agree repairs to shared parts like the roof and outside walls, and many buildings have a factor to arrange it. Where the title deeds are silent, the Tenements (Scotland) Act 2004 fills the gaps. Your title deeds will say who owns the windows.
Do you offer different sealant colours?
We’ll suggest a colour to suit the surroundings. The product needed can limit the range.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.
Can you do several jobs on one visit?
Yes, we can. More than one area can go on one quote.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
What should I tell you?
Tell us what needs doing and where, plus photos if you have them. We’ll ask anything else we need to know.
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.
Keeping the joints in good condition
Aftercare is simple:
- Keep modern sealant off the mastic
- Look over the window mastic once a year
- Avoid heavy scraping on the mastic joint
- Do not paint over the new mastic
Leave the new mastic unpainted, which is the traditional advice. If you’re redecorating, ask us first.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall, so renewing it early is worth it.
Towns and villages near Northfield
Other services in Northfield
What affects the quote in Northfield
For a quick quote, just ask. What matters most is:
- The number and length of the joints
- The type of sealant required
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Helping us quote
There’s no need for technical detail. It helps if you can tell us:
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
- If it’s domestic, commercial or a hotel
- Whether it has been sealed before
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.