Edinburgh · Scotland
Window & door mastic in Merchiston, Edinburgh
Mastic around window and door frames, sills and patio doors for homes and businesses in Merchiston and across Edinburgh. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Sealant in the wrong colour for the frame
- Old mastic that has gone black or come away
- Damp patches on the reveal after heavy rain
How the visit works
A visit follows a simple pattern: we check the joints, protect the area around them, do the work and clear up. Most jobs take most of a day for a typical house, less for a few frames. Inside a flat in Merchiston, the job is planned with you; outside, shared parts may need the factor or other owners involved. Tell us which applies when you book.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- We fit backing rod in deep gaps so the sealant is the right depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Finally we tidy up and check each joint.
Preparing for the visit
- Let us know about earlier repairs to the joints
- On commercial sites, let us know about site rules
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
Every job is quoted individually. Just drop us a line at info@mrmastic.co.uk with the details and send pictures if you have them.
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Window mastic for homes and businesses in Merchiston
From a single sill to a whole house of windows, the work is priced before anything is done. Just drop us a line at info@mrmastic.co.uk and tell us how many frames there are and how they’re reached. We work on window sills, timber windows & doors and aluminium frames, and people most often call us about gaps where the sill meets the wall and a bead that doesn’t match the frame.
Sash and case windows are a feature of older tenements in all four Scottish cities, and plenty still have them. In Merchiston, as anywhere, the mastic between frame and wall is what stops draughts and rain getting in.
There’s a 12-month guarantee on every job, large or small.
- Location
- Merchiston (EH10, EH11, EH3)
- Wider area
- Edinburgh
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Why deal with it now?
Failed mastic is not a reason to replace sound windows. Where the frames are sound, new mastic usually deals with draughts and leaks at the edges. Problems with the glass or gaskets are for a window company, and we’ll say so. In a tenement flat in Merchiston, a failed seal is rarely just your problem: water can reach the flat below, and gaps in shared walls or fire-stopping affect the whole stair.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Ask us for a quote and we’ll explain what it covers.
What you get with us
- An ARBOMaster approved applicator
- White, clear, grey or another colour, product permitting
- Fully insured
- Anti-fungal sanitary silicone in wet areas
Read our cost guide or what customers say.
What affects the quote in Merchiston
We quote each job individually. These are the things that affect it:
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- Whether there’s mould to deal with
- How many areas need sealing
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
You do not need to know the technical terms. Just tell us:
- If someone has resealed it before
- The rough size of the job
- The address or postcode of the job
- A few photos by email, if you can
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved before giving you a price.
Landlords, agents and businesses in Merchiston
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can be quoted together.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
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 fails, we can still redo it.
Your questions about window mastic in Merchiston
Does the coastal weather in Merchiston affect outside sealant?
Near the sea, outside joints face more wind, rain and salt than they would inland, so preparation and the right sealant matter all the more. It’s worth checking the walls that face the sea first.
How is work on the outside of a tenement in Merchiston normally arranged?
Shared parts of a tenement, such as the roof and outside walls, are generally repaired with the agreement of the owners, often through a property factor. Where the title deeds are silent, the Tenements (Scotland) Act 2004 fills the gaps. Your title deeds will say who owns the windows.
Is it OK to seal over old sealant?
No, it won’t last. It may look fine at first, but the new bead soon lifts. The old sealant has to come out completely.
Is there any odour?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Will resealing my frames help with draughts?
It will if the frame joint is the problem. We check where the draught is before we start.
Do you work for landlords and businesses?
Yes. As well as householders, we work for landlords, agents, businesses and hotels across Edinburgh.
Can you do upstairs windows?
Yes, if safe access is possible. For high or awkward windows, we will tell you what access is needed.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Window mastic in Merchiston: local notes
Merchiston 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 window and door frames, especially on the side facing the sea. Sash and case windows are common in older Scottish homes, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic.
Homes close to Christ Church include some older properties, and the joint between an old wall and a newer frame is normally the first place rain gets in. For landlords with property near Haymarket station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Merchiston is about 1 mile south of Edinburgh, in Edinburgh. We provide window mastic to homes and businesses in Merchiston and nearby, as part of our work across Edinburgh. Merchiston is one of 175 places in Edinburgh where we work.
Jobs for window mastic in EH10, EH11 and EH3 is quoted and booked the same way as anywhere else. You will find streets such as Eden Lane, Spylaw Road and Bryson Road. Close by, we work in Bruntsfield (1 mile east), Holy Corner (1 mile south), Greenhill (1 mile south), Burghmuirhead (1 mile south) and Church Hill (1 mile south). We also work in nearby towns such as Leith (3 miles north-east), Bonnington (3 miles north-east), North Leith (3 miles north), Queensferry (8 miles north-west), Timber Bush (3 miles north-east) and Lochend (3 miles north-east).
Landmarks near Merchiston
Typical jobs here are in homes near Golf Tavern, St Cuthbert's Church and Bruntsfield Links. You’ll also find Tollcross Primary School (0.5 miles north), National Museums Scotland Library (1.1 miles north-east) and Iain Tomlin School of Music (under half a mile south-west). The closest station to Merchiston is Haymarket station, about 0.7 miles north-west. Nearby you will also find Bruntsfield Hospital (under half a mile east) and Museum of Fire (0.7 miles north-east). For a walk, there’s Blackford Hill and Dunsapie Loch.
Common problems we fix in Merchiston
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
If you can see any of these, it’s time to have the joints looked at:
- Black, perished sealant on frames
- White mastic on grey or black frames
- Gaps left after new windows were fitted
- Cracked sealant at the sill ends
If you look after a building such as Boroughmuir High School, the mastic around its windows and doors needs looking after like any other building’s.
Before you book anyone
- Is VAT in the price?
- The length of the guarantee
- Whether the sealant suits the joint
- When the joint can take water or movement
Towns and villages near Merchiston
What else we do in Merchiston
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Make sure the drainage slots aren’t blocked
- Check the mastic once a year
- Keep jet washers away from the mastic
- Don’t use solvent cleaners on the joint
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
A failed joint lets water into the wall a little at a time. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.