Midlothian · Scotland
Window Mastic in Millerhill
Window mastic in Millerhill from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Mastic that has split away from the wall
- White mastic on grey or black frames
- Draughty joints inside around the window
How the job changes by surface
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. We will point out any rot we find, as a joiner will need to deal with it.
Aluminium frames
Coated aluminium needs a compatible sealant and we avoid acetoxy silicones, which can react with some metals. Neutral-cure sealant is the safe choice.
How we handle window mastic in Millerhill
There are two joints on most windows. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. If you have sealant in the wrong colour for the frame and mastic that’s falling out in pieces, we can help, whatever the surface.
In and around a place like Millerhill, homes range from older stone-built cottages to newer houses. Exposed frames and sills take the full force of wind-driven rain.
Our work is backed for twelve months.
- Place
- Millerhill (EH22)
- Region
- Midlothian
- Cover
- One year on every job
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Last updated
- 26 October 2026
What we do, step by step
We keep the work tidy and contained to the area we are working on, so you can get on with your day. The job generally takes a few hours for a few frames, or a day or more for a whole house, and we tell you how long to leave it before we go. In smaller Scottish places, parking is usually less of an issue than access and distance. Tell us how to find the property and how to reach the work.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- We clear up and check every joint is fully closed.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
For window mastic in Millerhill, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and we will agree the price before any work begins.
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DIY versus a professional finish
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
Landlords, agents and businesses in Millerhill
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
If you manage several properties in or around Millerhill, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Do not aim a pressure washer at the joints
- Keep solvents and bleach off the sealant
- Keep timber frames painted
- Wipe condensation off the frames
Clean the frames with mild soapy water, and keep solvents and harsh chemicals off the joint.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Early resealing stops it reaching that point.
Common questions in Millerhill
Is window mastic in a coastal place like Millerhill any different?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Do you work for landlords with property near Shawfair station?
Yes, rental work is part of what we do. Just send an email to info@mrmastic.co.uk and tell us about the property, and we’ll give you a clear price.
Do you work for hotels and businesses?
Yes. Larger jobs can be planned room by room or area by area to suit the site.
Will new mastic stop draughts?
In many cases. The gap between frame and wall is a common source of draughts, and resealing inside and out closes it.
Can you do upstairs windows?
Yes, if safe access is possible. For high or awkward windows, we’ll tell you what access is needed.
Do you guarantee window mastic?
Yes, for 12 months. A yearly look at the joints helps them last.
How do I get a quote for window mastic in Millerhill?
It depends on the job, so we quote each one individually. For a quick quote, send an email to info@mrmastic.co.uk and tell us what needs doing and where.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Places near Millerhill
Other services in Millerhill
What happens if it’s left?
Running fresh sealant over the old joint is tempting, but new sealant cannot bond to old, crumbling mastic. It soon lifts and the leak carries on behind it. The old mastic has to come out. Exposed walls in smaller Scottish places take a lot of wind and rain, and damp in stone or harled walls takes a long time to dry once water gets behind a joint.
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
Why us?
- ARBOMaster approved applicator
- A sealant colour to suit the surroundings
- 4.9 on Google from 180+ five-star reviews
- More than 20 years in sealant work
See our cost guide or what customers say.
When it is not the sealant
To be straight with you, there are a few things sealant won’t fix:
- A sash or casement that will not close properly
- Condensation trapped between the panes
- Worn gaskets, brush seals or a door that has dropped
Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly.
Where we work in Millerhill
- uPVC windows
- Window sills
- Patio & French doors
- Composite doors
- Aluminium frames
- Timber windows & doors
Millerhill homes and the weather
Millerhill is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. 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.
For site and facilities teams at buildings such as Dalkeith High School, its window and door frames need their mastic kept sound, just like a home’s. If you live in an older home near Newton Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you let a flat or house near Shawfair station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Millerhill is about 2 miles north-west of Dalkeith, in Midlothian. If you need window mastic in Millerhill, it’s easy to get a quote: please send an email to info@mrmastic.co.uk. We’re based in Crawley and cover Midlothian, Millerhill included. Millerhill is one of 33 places in Midlothian where we work.
Jobs for window mastic in EH22 is quoted and booked the same way as anywhere else. Streets in the area include Wymet Grove, Wymet Gardens and Cocklerow Loan, all of which we cover. Nearby, we also carry out window mastic in Newton Village (1 mile west), Shawfair (1 mile north-west), Old Craighall (1 mile north-east), Newcraighall (2 miles north) and Whitecraig (2 miles east). Larger places within reach include Bonnyrigg (3 miles south), Penicuik (8 miles south-west), Loanhead (4 miles south-west), Gorebridge (5 miles south), Newtongrange (3 miles south) and Mayfield (3 miles south-east).
Local landmarks in Millerhill
Typical jobs here are in homes near Drum Park, among other places. Millerhill has its own railway station: Shawfair station. Well-known places in the area include Musselburgh Doll Museum (2.3 miles north-east) and Dalkeith Palace (1.1 miles south-east). Not far away are The New Leaf Co-op and Nether Hill.