Scottish Borders · Scotland
Window Mastic in Nisbet
Mastic around window and door frames, sills and patio doors for homes and businesses in Nisbet and across the Scottish Borders. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- White mastic on grey or black frames
- Cracked internal joints between frame and plaster
- Leaking joints at the ends of sills
Keeping the joints in good condition
After the cure time, these simple habits help:
- Keep paint and stain on wooden frames in good order
- Use gentle cleaners on frames and sealant
- Check the mastic once a year
- Keep jet washers away from the mastic
Clean the frames with mild soapy water, and keep solvents and harsh chemicals off the joint.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so early resealing is worth it.
Window mastic in Nisbet, done properly
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through and quietens the whistle on windy days. If the draught is through the window seals instead, we will tell you. If you have a bead that doesn’t match the frame and black, perished sealant on frames, we can help, whatever the surface.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. Those suit a traditional sand mastic or a neutral-cure sealant, not an acetoxy silicone that can attack some stone.
Big or small, you get the same one-year guarantee in Nisbet and across the Scottish Borders.
- Place
- Nisbet (TD8)
- Region
- Scottish Borders
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Worn gaskets, brush seals or a door that has dropped
- A failed sealed unit that has misted up
- Broken hinges, locks or handles
If you are not sure, just drop us a line at info@mrmastic.co.uk and we’ll give you a straight answer before booking.
What we seal
- Timber windows & doors
- uPVC windows
- Patio & French doors
- Aluminium frames
- Composite doors
- Window sills
FAQs for Nisbet
Do you cover smaller places like Nisbet?
Yes, Nisbet is covered. We work across all of Scotland, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
What guarantee comes with window mastic in Nisbet?
Every job comes with our 12-month guarantee, wherever it is. We are fully insured, and an ARBOMaster approved applicator.
Is it messy?
We keep the work tidy. Nearby surfaces are protected.
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. We will tell you how long your job needs when we quote.
Can tenants book the work?
We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Can you do the inside joint as well?
Yes. Plenty of draughts come through the inside joint as well as the outside, so sealing both is often worthwhile.
Can resealing stop a draught around my window?
Often, yes. The gap between frame and wall is a common source of draughts, and sealing the inside and outside joints closes that path.
Can you do several jobs on one visit?
Yes. Tell us about everything you’d like done and you’ll get one quote.
Leave it or put it right?
Getting a straight, even bead on an outside frame takes practice, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. 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.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are unsure, email us at info@mrmastic.co.uk and we’ll give you an honest view and a quote.
Why book with us
- You choose the colour before work begins
- Rated 4.9 stars on Google
- Arbo and Everbuild products
- ARBOMaster approved applicator
See how sealant jobs are priced and our reviews.
How we quote for window mastic
The quote reflects the job in front of us. We look at:
- Which sealant suits the joint
- How much old sealant there is and how hard it is to remove
- When we can work, for business premises
- How many rooms, windows or areas are involved
Combining jobs into one visit normally makes better use of the time than several visits. We’ll send you a clear quote for the lot.
Helping us quote
You don’t need to know the technical terms. It helps if you can tell us:
- Whether it’s a home or a business
- If someone has resealed it before
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that is easy
For a quote, drop us a line at info@mrmastic.co.uk with the location and a short description of the problem. We will give you a clear price before any work starts.
What window mastic looks like in Nisbet
Many older homes in Scotland have sash and case windows, and the joint between the box frame and the stone or render is traditionally pointed with sand mastic. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that.
Homes close to Crailing Parish Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. In and around Nisbet, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Nisbet is about 13 miles north-east of Hawick, in the Scottish Borders. We carry out window mastic for householders, landlords and businesses in Nisbet and nearby. Our the Scottish Borders coverage runs to 89 places, and Nisbet is one of them. Edinburgh is on our list too, about 39 miles from Nisbet.
Here we cover the TD8 postcode area for window mastic. Other places close to Nisbet include Ancrum (3 miles west), Jedburgh (3 miles south), Roxburgh (4 miles north-east), Heiton (4 miles north-east) and Maxton (5 miles north-west). We also work in nearby towns such as Galashiels (13 miles north-west), Hawick (13 miles south-west), Kelso (6 miles north-east), Selkirk (13 miles west), Wilton (13 miles south-west) and Melrose (10 miles north-west).
Around Nisbet
Well-known places in the area include Queen Mary's House (3.4 miles south-west) and Timpendean Tower (3 miles south-west). The countryside around Nisbet includes Peniel Heugh and Wooden Loch.
What happens on the day
Most of a good job is in the preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. In total, it usually takes a few hours for a handful of frames, longer for a whole house. Around Nisbet, distance and access matter more than parking. Tell us how to find the property and how to reach the work, and the visit is planned around that.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- Mention any leaks or damp you’ve noticed
- Let us know about parking restrictions
- On commercial sites, let us know about site rules
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you’re ready, send an email to info@mrmastic.co.uk.
Advice
What the job involves on each surface
Patio & French doors
The joints around patio doors run a long way, top, sides and threshold. Most leaks start at the bottom corners, so we pay close attention there.
Aluminium frames
Aluminium needs a sealant that bonds to coated metal and we avoid acetoxy silicones, which can react with some metals. Neutral-cure sealant is the safe choice.
What else we do in Nisbet
DIY sealant or a professional job?
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.
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.