East Lothian · Scotland
Innerwick Window Mastic
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Innerwick. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Gaps left after new windows were fitted
- Rain getting in at the frame or under the sill
- White mastic on grey or black frames
Window mastic in Innerwick, done properly
Homes in Innerwick have every kind of window: uPVC, aluminium, timber and composite, along with patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. If you have cracked sealant at the sill ends and rushed sealant from a window installation, we can put it right, on timber windows & doors, aluminium frames and composite doors alike.
Many older Scottish homes still have timber windows set into stone walls. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
There’s a 12-month guarantee on every job, large or small.
- Place
- Innerwick (EH42)
- Region
- East Lothian
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
FAQs for Innerwick
Can you help a landlord with a rental near Dunbar station?
Yes, landlords and agents are among the people we work for. You can send an email to info@mrmastic.co.uk with the details for a clear quote.
Is Innerwick within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Let us know about access, parking and anything unusual about getting there when you book.
Where do you work from?
We are a Crawley-based firm. We work across South East England, London and Scotland.
Can resealing stop a draught around my window?
Yes, if the air is getting in around the frame. If it’s through the window’s own seals or a hinge, that is a different fix, and we will say so.
Do I have to be there?
It depends on the job. For work indoors, someone needs to let us in.
How long does it take to reseal the windows on a house?
It depends on access, the old mastic and the size of the frames. You will know the timing when we quote.
Do you have insurance?
Yes. We’re fully insured.
Can I paint over the new sealant?
Most silicone cannot be painted. Let us know beforehand, and we will use a paintable product where it suits.
When to call us in Innerwick
Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the brick or render around it hardly moves. A sealant that can’t keep up eventually tears.
If you can see any of these, it’s time to have the joints looked at:
- Gaps where the sill meets the wall
- Black, perished sealant on frames
- White mastic on grey or black frames
- Cracked internal joints between frame and plaster
If you let a flat or house near Dunbar station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Comparing quotes
- How hidden problems are handled
- Whether you can choose the colour
- Whether the sealant suits the joint
- How long to leave it before use
What affects the cost of window mastic
The quote reflects the job in front of us. We look at:
- The amount of work
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
- Access and height
A failed joint rarely gets cheaper to fix by waiting. If you are unsure, drop us a line at info@mrmastic.co.uk and we’ll give you an honest view and a quote.
Helping us quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- The address or postcode of the job
- Whether it’s a home or a business
- The problem you’ve noticed
- Any access issues, like height or stairs
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.
DIY versus a professional finish
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
How the job changes by surface
Window sills
Where a sill meets brick or render, the ends often crack first. A tight seal at each end keeps rain out of the wall.
uPVC windows
The frame is cleaned with a product that won’t harm the plastic, then the sealant goes in between frame and wall.
Why act early in Innerwick
Not every sealant suits a window. Interior caulk and bathroom silicone are not made for exterior frame joints. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Out of town in Scotland, exposed walls take a lot of weather, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Why book with us
- A sealant colour to suit the surroundings
- Experience in homes, commercial sites and hotels
- Tidy, careful work
- You choose the colour before work begins
Windows and doors in Innerwick
Innerwick is close to 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. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
Homes close to Innerwick Parish Church include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Innerwick is about 13 miles east of Haddington, in East Lothian. We provide window mastic to homeowners, landlords and businesses in Innerwick and nearby. 48 places in East Lothian are on our list, large and small. We also work in Edinburgh, about 29 miles from Innerwick.
Postcode districts we cover here for window mastic: EH42. Local streets include Back Lane, Manse View and Kirk Brae, and we cover them all. We also cover Broxburn (3 miles north-west), Spott (3 miles west), Cockburnspath (4 miles south-east), Dunbar (4 miles north-west) and Cove (4 miles east). We also work in nearby towns such as Haddington (13 miles west), North Berwick (13 miles north-west), Gullane (15 miles west) and East Linton (8 miles west).
Near you in Innerwick
The nearest railway station is Dunbar station, about 3.8 miles north-west. A little further out are Innerwick Castle (0.9 miles east) and Belhaven Hospital (4.3 miles north-west). Open spaces near Innerwick include Doon Hill and Pease Dean.
For landlords and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
Also near Innerwick
What else we do in Innerwick
What happens on the day
Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of frames, longer for a whole house. Outside jobs in Innerwick need a dry day, because sealant will not bond to a wet joint, so an outdoor job can move if the forecast changes. Work indoors isn’t affected.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- 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.
- Every joint is tooled smooth and checked before we leave.
Getting ready for the visit
- Try not to wet indoor joints just before the visit
- On commercial sites, let us know about site rules
- Mention if the joints have been sealed before
Getting a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.