East Lothian · Scotland
Garvald Window Mastic
Window mastic across Garvald and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Black, perished sealant on frames
- A bead that doesn’t match the frame
- Cracked sealant at the sill ends
About our window mastic in Garvald
Homes in Garvald have every kind of window: uPVC, aluminium, timber and composite, along with patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. If you’re dealing with cold air getting in at the frame edge and old mastic that has gone black or come away, we can put it right, whatever the surface.
In and around a place like Garvald, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill.
A 12-month guarantee comes as standard.

- Place
- Garvald (EH41)
- Region
- East Lothian
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- info@mrmastic.co.uk
- Page updated
- 26 October 2026
What we do, step by step
We keep the work tidy and contained to the joints we are treating, so you can get on with your day. Expect the work to take a morning for a couple of windows and a door, and we explain the cure time before we leave. Around Garvald, 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.
- The surfaces are cleaned and left dry.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Clear items away from the joints we’re working on
- Let us know about stairs, lifts or work at height
Ask for a quote
Asking for a quote is easy: tell us what needs doing and where and its rough size. A few pictures by email make the job easier to understand.
Read more
What window mastic looks like in Garvald
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and failed outside joints work against that. 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.
In and around Garvald, as anywhere, good window mastic starts with a clean, dry, properly prepared joint.
Garvald is about 5 miles east of Haddington, in East Lothian. From the centre of Garvald to the outskirts, we cover window mastic for every kind of property, from flats and houses to offices and hotels. Garvald is one of 48 towns and villages in East Lothian we cover. There’s also a page for Edinburgh, about 21 miles away.
Here we cover the EH41 postcode area for window mastic. If you are just outside Garvald, we cover Bara (2 miles south-west), Stenton (3 miles north-east), East Linton (4 miles north), Phantassie (4 miles north) and Preston (4 miles north). Larger places within reach include Musselburgh (15 miles west), Haddington (5 miles west), Dunbar (7 miles north-east), Tranent (11 miles west), North Berwick (9 miles north) and Prestonpans (13 miles west).
Around Garvald
The closest station to Garvald is East Linton station, roughly 4.1 miles north of the centre. A little further out are Whittingehame Tower (1.8 miles north-east) and Roodlands General Hospital (5.7 miles west). For a walk, there’s Traprain Law.
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Keep jet washers away from the mastic
- Air rooms to keep condensation down around windows
- Don’t use solvent cleaners on the joint
- Keep paint off silicone joints
Have a look at the joints once a year, ideally after winter. Small splits are simple to catch before they leak.
On timber windows, water behind the joint can lead to rot. Once wood has rotted, it needs repair before it can be sealed, so it pays to reseal before that happens.
Do you need window mastic in Garvald?
A lot of older mastic was never designed to stay flexible. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
Most people get in touch after spotting one of these:
- Rushed sealant from a window installation
- Old mastic that has gone black or come away
- Mastic that has split away from the wall
- Gaps where the sill meets the wall
For landlords with property near East Linton station, renewing tired window mastic between tenants heads off draught and damp complaints.
Questions to ask before you book
- Whether you can choose the colour
- How the joint is cleaned and prepared
- Are they insured?
- Which sealant they’ll use, and why
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Nearby places to Garvald
Other services in Garvald
Your questions about window mastic in Garvald
Do you cover smaller places like Garvald?
Yes, we do. Our work covers the whole 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 East Linton station. Can you help?
Yes. We work for landlords and letting agents as well as homeowners. Just send an email to info@mrmastic.co.uk with the address and what needs doing, and we’ll give you a clear price.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that normally means someone at home.
Do you have sealant for grey or black windows?
Normally, yes. Mention the frame colour when you ask for a quote and we’ll match it as closely as we can.
Can you do the inside joint as well?
Yes. Indoors, we seal between the frame and the plaster or reveal, using a paintable sealant if you want to decorate.
How long should I leave it?
Different products cure at different speeds, so please follow the time we give you.
Do you have insurance?
Yes. We’re fully insured.
Will you leave a mess?
No. The area is protected while we work and cleaned up afterwards.
Why it’s worth doing now in Garvald
Once mastic fails, rain can get between the frame and the wall. Over time that can mean damp patches, damaged plaster and rotting timber. A reseal is a much smaller job. Exposed walls in smaller Scottish places take a lot of wind and rain, and once water gets behind a failed joint, damp in stone or harled walls is slow to dry out.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
Why book with us
- You choose the colour before work begins
- An ARBOMaster approved applicator
- 180+ five-star Google reviews
- Old sealant always removed completely
Take a look at how sealant jobs are priced and our reviews.
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.
When something else is needed
In fairness, some problems need a different trade:
- Condensation trapped between the panes
- A sash or casement that will not close properly
- Damp problems in the wall away from the window
If you are not sure, just email us at info@mrmastic.co.uk and we will give you a straight answer before booking.
What we seal
- Aluminium frames
- uPVC windows
- Window sills
- Timber windows & doors
- Composite doors
- Patio & French doors
