North Lanarkshire · Scotland
Sand Mastic in Forgewood
Window and door surrounds in Forgewood need attention? We remove the old material, prepare the joints and seal them properly, with a 12-month guarantee.
- Gaps between timber frames and stone or brick
- Failed mastic on an exposed elevation
- Draughts and rain around sash boxes
Sand mastic in Forgewood, done properly
Silicone on a period window often looks wrong and isn’t always the right material. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. Common call-outs are for tired mastic found when preparing windows for paint and old cement repairs round a window that have failed, across sash and case windows, period & listed homes and tenement windows.
In and around a place like Forgewood, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill, so the mastic there works hard.
You’re covered for a year from the day we finish. If anything isn’t right with it, email us at info@mrmastic.co.uk.
- Where
- Forgewood (ML1, ML4)
- Region
- North Lanarkshire
- Cover
- One year on every job
- Quotes
- A clear price before we start
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Surface by surface
Sash and case windows
Sash windows are where we do most sand mastic work. We renew the mastic round each box.
Stone surrounds
Stone openings are rarely perfectly straight, so the joint varies in width. We shape it by hand to follow the stone.
Also near Forgewood
Other services in Forgewood
Sand mastic in Forgewood: local notes
The west of Scotland is wetter than the east, which means the mastic around older windows and doors has to cope with a lot of rain. With historic houses such as Cambusnethan House (about 4.1 miles south-east) nearby, there’s older building stock in the area around Forgewood as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
For an older house near a landmark such as Dalziel North Parish Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you look after a building such as Braidhurst High School, its window and door frames need their mastic kept sound, just like a home’s.
Forgewood is about 1 mile north-west of Motherwell, in North Lanarkshire. Wherever you are in the ML1 postcode area, our applicators can take on sand mastic. Our area takes in 89 places across North Lanarkshire, large and small. We also work in Glasgow, about 11 miles from Forgewood.
Every address in ML1 and ML4 is covered for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on Newhut Road, Birrens Road and Kirklee Road or a nearby road, we can help. Neighbouring places we cover for sand mastic include Mossend (1 mile north), Bellshill (1 mile north-west), Bothwell (3 miles west), Viewpark (3 miles north-west) and Carnbroe (3 miles north). Further out, we also cover Cumbernauld (10 miles north), Coatbridge (4 miles north), Airdrie (4 miles north), Wishaw (4 miles south-east), Kilsyth (12 miles north) and Burnfoot (5 miles north).
What’s near Forgewood
Locally, jobs take us to homes and businesses close to Duchess of Hamilton Park, The Brandon Works pub and Ladywell Primary School. Forgewood’s nearest station is Motherwell station, roughly 0.9 miles south. Nearby you’ll also find North Lanarkshire Heritage Centre (1 mile south) and Brandon Shopping Centre (1.1 miles south-east). The countryside around Forgewood includes Strathclyde Loch and Baron's Haugh RSPB Reserve.
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Get any rot dealt with first
- Leave the new mastic unpainted
- Avoid heavy scraping on the mastic joint
- Renew mastic before redecorating the windows
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at rather than patching it.
Sound mastic protects the frame. Failed mastic lets water reach the timber, which can lead to rot.
How we quote for sand mastic
Jobs vary more than people expect. The main factors:
- How easy the joints are to reach
- Whether there’s mould to deal with
- The number and length of the joints
- How many areas need sealing
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and give you a clear quote before we start.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- The address or postcode of the job
- If it’s domestic, commercial or a hotel
- How we’d reach the joints
- Roughly how big the job is
Every job is quoted individually. Just email us at info@mrmastic.co.uk with the details and send photos if you have them.
How the visit works
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take a few hours for a single window, longer for several. Outside jobs in Forgewood need a dry day, because sealant won’t bond to a wet joint, so an outdoor job can move if the forecast changes. Indoor work goes ahead whatever the weather.
- First, we look at the surrounds with you and agree what needs doing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- We dress the surface so it sits neatly against the masonry.
How to prepare
- Tell us if parking is tricky
- Keep children and pets away from the work area
- Tell us about any water getting in
Ask for 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.
Related advice
Leave it or put it right?
New mastic over crumbling mastic will not hold. Raking out and preparing the joint gives it a sound base so the new work lasts. In a place like Forgewood, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
What it costs depends on the amount of work, how much old material has to come out and access to the work. We give a clear quote before any work starts.
Why us?
- Rated 4.9 stars on Google
- Fully insured
- Quality sealants from Arbo and Everbuild
- Experience in homes, commercial sites and hotels
Read our cost guide or what customers say.
Your questions about sand mastic in Forgewood
Will you come out to Forgewood?
Yes, Forgewood is covered. We work across all of Scotland, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
I let a flat near Motherwell station. Can you help?
Yes, we work for landlords and letting agents. You can send an email to info@mrmastic.co.uk with the address and a few details, and we will give you a fixed price before any work starts.
What’s sand mastic made of?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
What information do you need?
The location, the problem and the rough size of the job. Photos by email help too.
Do you work for hotels and businesses?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Can old silicone round a sash window be swapped for sand mastic?
Normally, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
What does sand mastic cost?
Size, access and the old material all affect the cost. Call for a quick quote.
How long does sand mastic take to harden?
It takes a while. The skin forms first, and the full set comes later and we’ll give you an idea for your job.
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
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, then guaranteed for a year.
Signs you need sand mastic in Forgewood
Decorating can disturb tired mastic. It’s often found when windows are being prepared for paint.
It’s worth asking for a quote if you see:
- Mastic that needs renewing before redecorating
- Cracked mastic round a front door frame
- A silicone bead on a sash window that spoils the look
- Cement or filler used on old window joints that has cracked
For landlords with property near Motherwell station, any sash windows need sound mastic to keep draughts and rain out.
What to look for in a quote
- How long to leave it before use
- How long the guarantee is
- How the colour is chosen
- Whether the sealant suits the joint