Midlothian · Scotland
Polton Window Mastic
Window and door frames in Polton need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Rain getting in at the frame or under the sill
- Cold air getting in at the frame edge
- Old mastic that has gone black or come away
About our window mastic in Polton
If you can feel air around a shut window, the gap is often at the frame. A new joint stops the air getting through. If the draught is through the window seals instead, we will tell you. Typical jobs include cracked or shrunken mastic around the frame and gaps where the sill meets the wall, on patio & French doors, composite doors and window sills.
Older stone-built homes in Scotland often have sash and case or timber windows set in stone. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
There’s a 12-month guarantee on every job.
- Location
- Polton (EH18, EH19, EH24)
- Region
- Midlothian
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
What affects the cost of window mastic
Every job gets its own quote. This is what makes a difference:
- The type of sealant required
- Any working-time requirements on site
- How many rooms, windows or areas are involved
- Access and height
A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, email us at info@mrmastic.co.uk for an honest opinion and a quote.
What we need to know
What to tell us when you ask for a quote:
- Photos by email, if that is easy
- How we’d reach the joints
- If it’s domestic, commercial or a hotel
- The address or postcode of the job
Every job is quoted individually. Simply send an email to info@mrmastic.co.uk and describe the job, and pictures are welcome.
How the job changes by surface
Patio & French doors
Water at the foot of a door frame isn’t always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We look for the cause first.
uPVC windows
uPVC expands and contracts noticeably with temperature, so we use a flexible, low-modulus sealant. We match white, brown, anthracite grey and black frames.
Landlord and commercial work in Polton
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
Windows and doors in Polton
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. Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and failed outside joints work against that.
If you live in an older home near St Leaonard's Episcopal Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Rented homes near Eskbank station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Polton is about 1 mile west of Bonnyrigg, in Midlothian. Anywhere in EH18, we cover window mastic for homes and businesses. Polton is one of 33 towns and villages in Midlothian where we work for window mastic. For nearby work, see our Edinburgh page, about 6 miles away.
Jobs for window mastic in EH18, EH19 and EH24 is quoted and booked the same way as anywhere else. Whether your property is on Gordon Avenue, De Quincey Road and St Annes Avenue or a nearby road, we can help. Other places close to Polton include Rosewell (1 mile south), Bonnyrigg (1 mile east), Loanhead (1 mile north-west), Lasswade (1 mile north-east) and Roslin (2 miles south-west). Within a short drive, we also cover Dalkeith (3 miles north-east), Penicuik (4 miles south-west), Gorebridge (4 miles south-east), Newtongrange (3 miles east), Mayfield (4 miles east) and Shawfair (4 miles north).
Around Polton
Locally, jobs take us to homes and businesses close to Public Library, among other places. Polton’s nearest station is Eskbank station, roughly 2.2 miles north-east of the centre. Well-known places in the area include Hawthornden Castle (0.5 miles south-west) and Midlothian Community Hospital (1.9 miles north-east). Green spaces nearby include Woodhouselee Hill and Edgelaw Reservoir.
What we do, step by step
You do not need to clear the whole room or building, only the area right around the joints. We protect the rest, and the job takes anything from an hour or two to a full day, depending on how many frames there are in most cases. Somewhere like Polton may be a longer drive, and the journey is planned ahead. Mention tracks, gates, ferries or anything else about the route.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely.
- Frame and wall are cleaned and must be dry before sealing, and primed where the sealant calls for it.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Preparing for the visit
- Tell us if parking is tricky
- Let us know about earlier repairs to the joints
- Keep pets and children clear of the area while we work
How to get a quote
Getting a quote is simple: let us know the job and the location and its rough size. Photos by email help us understand the job, and we’ll come back to you with a quote.
Related advice
Polton questions
Do you cover Polton for window mastic?
Yes. We work across all of Scotland, and Polton is part of that. Just drop us a line at info@mrmastic.co.uk with a few details of the job, and we’ll give you a clear price.
I let a flat near Eskbank station. Can you help?
Yes, we work for landlords and agents. Just send an email to info@mrmastic.co.uk and tell us about the property, and we’ll give you a clear price.
Do I need to be at home?
We need access to the joints, so we’ll agree that with you when we book. For inside work, that normally means someone being in.
How much does window mastic cost in Polton?
Size, access and the old material all affect the cost. Ask us for a quote.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We’ll tell you what we’re using and why.
What should I tell you?
Just the basics: the address or postcode, what’s wrong and any access issues. Then email us at info@mrmastic.co.uk.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Are you fully insured?
Yes. We’re fully insured.
What we are called out for in Polton
Sun, frost and rain wear sealant out. UV light hardens the outside of the bead, until it loses its stretch and starts to crack.
If you can see any of these, it’s time to have the joints looked at:
- Gaps between the frame and the inside reveal
- Mastic that has split away from the wall
- White mastic on grey or black frames
- Rain getting in at the frame or under the sill
If you look after a building such as Lasswade High School Centre, the mastic around its windows and doors needs looking after like any other building’s.
Questions to ask before booking
- How hidden problems are handled
- When the joint can take water or movement
- Whether the sealant suits the joint
- Whether VAT is included
Looking after it afterwards
Aftercare is simple, and it makes a real difference:
- Keep drainage slots and sill grooves clear
- Wash the frames with mild soapy water
- Ventilate rooms so frames don’t stay wet inside
- Check the mastic once a year
Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
More services for Polton
Leave it or put it right?
Working on frames from a ladder with a sealant gun isn’t easy, especially on upper floors. A professional job is cut out properly, backed where needed and finished neatly, in a sealant suited to the wall. In a place like Polton, small leaks are easy to put off, but water behind a failed seal does the most damage when nobody’s watching.
Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why book with us
- ARBOMaster approved applicator
- More than 20 years in sealant work
- White, clear, grey or coloured to suit, where the product allows
- Sanitary silicone with an anti-fungal additive in wet areas