Edinburgh · Scotland
Prestonfield Window Mastic
Mastic around window and door frames, sills and patio doors for Prestonfield, backed by a 12-month guarantee. Call for a quick quote.
- Untidy mastic left by window fitters
- Cold air getting in at the frame edge
- Cracked internal joints between frame and plaster
Window mastic in Prestonfield
Frames and walls do not move together. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. If you have rushed sealant from a window installation and mastic that’s falling out in pieces, we can help, on aluminium frames, patio & French doors and uPVC windows alike.
Scotland’s cities are full of stone-built tenements and terraces, in sandstone or granite. Stone needs a sealant that suits it, which usually means a neutral-cure product or a traditional sand mastic rather than an acetoxy silicone.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we will sort it.
- Place
- Prestonfield (EH16, EH9, EH8)
- Region
- Edinburgh
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Why it’s worth doing now in Prestonfield
Draughts and leaks do not always mean new windows. Where the frames are sound, new mastic normally deals with draughts and leaks at the edges. If we find failed glass units or worn seals, we’ll tell you. Scottish rain finds any gap around a frame or wall joint, and in a tall building in Prestonfield, damp can travel a long way before it shows.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please send an email to info@mrmastic.co.uk and we will talk you through it.
Why Prestonfield customers choose us
- Colour picked to suit the job
- Old sealant always removed completely
- 20+ years of sealant experience
- You choose the colour before work begins
Read what affects the cost and what customers say.
Surface by surface
Aluminium frames
Aluminium needs a sealant that bonds to coated metal, and acetoxy silicones aren’t used, as they can attack some metals. We use a neutral-cure product.
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. We cut it out, back any deep gaps and reseal properly.
How the visit works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes most of a day for a typical house, less for a few frames and we leave things clean and tidy. For a tenement in Prestonfield, work inside your flat is between us and you, while shared parts may need the factor or neighbours to agree. It helps to know which it is when you get in touch.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
How to prepare
- Mention any parking rules near the property
- Tell us about any previous sealing or DIY attempts
- Mention any sign-in or site rules at work premises
Getting a quote
If you are in Prestonfield and need window mastic, send an email to info@mrmastic.co.uk. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Advice
Quotes for window mastic in Prestonfield
Some jobs are bigger than they look, and some smaller. The main factors:
- The product the joint needs
- Access and height
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
Doing several joints on one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Helping us quote
When you contact us, it’s useful to know:
- Any previous sealing or DIY work
- The type of property
- The rough size of the job
- What the problem is, such as mould, gaps, leaks or cracking
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, drop us a line at info@mrmastic.co.uk.
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Soft or decayed wood in the frame
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Worn gaskets, brush seals or a door that has dropped
If you’re not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer.
Where we work in Prestonfield
- Composite doors
- Window sills
- Aluminium frames
- Patio & French doors
- Timber windows & doors
- uPVC windows
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Landlords, agents and businesses in Prestonfield
Letting agents often deal with us directly. Tell us the address, the job and how access works.
Hotels need rooms back in use, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
Common questions in Prestonfield
Is window mastic in a coastal place like Prestonfield 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. Walls facing the sea are usually the first to need attention.
Can you help a landlord with a rental near Edinburgh Waverley station?
Yes. We work for letting agents and landlords as well as homeowners. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
How many windows can you do in a day?
That depends on the number of frames, how they’re reached and the state of the old mastic. We will tell you how long your job needs when we quote.
Do you have insurance?
Yes. We are fully insured.
Can you get sealant to suit coloured frames?
Normally, yes. Tell us the frame colour when you get in touch and we will use the nearest match.
Is it OK to seal over old sealant?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Can I add another job to the visit?
Of course. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.
Do you come to Prestonfield?
Yes. From our base in Crawley, we cover South East England, London and all of Scotland, and that includes Prestonfield.
Places near Prestonfield
Other services in Prestonfield
Frames and glazing around Prestonfield
Prestonfield 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 window and door frames, which can dry out and crack sooner where a building faces the weather. 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 Priestfield Parish Church include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in. If you look after a building such as St Margaret's School, its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Edinburgh Waverley station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Prestonfield is about 2 miles east of Edinburgh, in Edinburgh. We provide window mastic to homes and businesses in Prestonfield and the surrounding area. Our area takes in 175 places across Edinburgh, from the larger towns to small villages.
We work across EH16, EH9 and EH8 for window mastic. Window mastic is available to properties on Lady Road, Cobden Road and Gilmour Road. Prestonfield is on the A7, so it’s easy for us to get to. If you are just outside Prestonfield, we cover Cameron Toll (1 mile south), Mayfield (1 mile west), Bridge End (1 mile south-east), St Leonard's (1 mile north-west) and Newington (1 mile west). Larger places within reach include Leith (3 miles north), Bonnington (3 miles north), Stockbridge (3 miles north-west), North Leith (3 miles north), West Coates (3 miles west) and Queensferry (10 miles west).
Near you in Prestonfield
In Prestonfield, that means homes and buildings near Duddingston Kirk, Scottish Poetry Library and Peffermill Playing Fields, among other places. Other local landmarks include Leslie's Bar (0.6 miles west), Sciennes Primary School (1.1 miles west) and Royal Blind School (0.5 miles south-west). Prestonfield’s nearest station is Edinburgh Waverley station, roughly 1.7 miles north-west of the centre. Well-known places in the area include Morita Museum of Fine Art (0.5 miles west) and Cameron Toll Shopping Centre (0.5 miles south). Not far away are The New Leaf Co-op and Duddingston Loch.