West Lothian · Scotland
Howden Window Mastic
Mastic around window and door frames, sills and patio doors for Howden, backed by a 12-month guarantee. Ask us for a quote.
- Gaps where the sill meets the wall
- Sealant in the wrong colour for the frame
- Damp patches on the reveal after heavy rain
What we can’t put right
We’d rather tell you now than do work that won’t last, so these are the limits:
- A frame that has rotted at the joint
- Faulty window hardware
- Damp coming through the wall itself rather than the frame joint
If in doubt, drop us a line at info@mrmastic.co.uk and we’ll say what we think.
What we seal
- Timber windows & doors
- Composite doors
- Window sills
- Aluminium frames
- Patio & French doors
- uPVC windows
Window mastic for homes and businesses in Howden
Whether it’s one leaking patio door or every frame on the house, you’ll get a clear quote before we start. To get one, send an email to info@mrmastic.co.uk with the number of frames and any access details. We work on window sills, patio & French doors and composite doors, and common reasons people get in touch are leaking joints at the ends of sills and untidy mastic left by window fitters.
Many older Scottish homes still have timber windows set into stone walls. The sealant has to suit the stone, which rules out acetoxy silicones that can mark or attack it.
You are covered for a year from the day we finish. If there’s a problem with it, please drop us a line at info@mrmastic.co.uk.

- Place
- Howden (EH54)
- Wider area
- West Lothian
- Cover
- One year on every job
- Price
- A clear price before any work starts
- info@mrmastic.co.uk
- Updated
- 26 October 2026
Nearby places to Howden
Other services in Howden
What we do, step by step
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours for a handful of frames, longer for a whole house. Around Howden, distance and access matter more than parking. Let us know how to find you and how to reach the joints.
- We check how each frame can be reached safely.
- Old, cracked mastic is removed completely, along with any loose debris.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Let us know about stairs, lifts or work at height
- Where the joints are inside, avoid wetting them before we arrive
- Clear the area around the work
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Read more
What affects the quote in Howden
The price is agreed before any work begins. It takes into account:
- The number of rooms or windows
- The type of sealant required
- Mould in or behind the old joints
- The size of the job
The cost depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before any work starts.
Asking for a quote
To help us quote quickly, let us know:
- A few pictures by email, if you can
- Any previous sealing or DIY work
- Access, such as stairs, a lift or height
- The rough size of the job
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job.
Windows and doors in Howden
Private landlords in Scotland must meet the Repairing Standard, which includes keeping a home wind and watertight, and sound outside sealant is part of that. Historic houses like Howden House (about 0.2 miles north-east) are a reminder that the area around Howden has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
Schools such as St. Margaret's Academy are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Homes close to St Andrew's Church include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in.
Howden is about 1 mile south of Livingston, in West Lothian. Anywhere in EH54, our applicators can take on window mastic. 58 places in West Lothian are on our list, large and small. Our Edinburgh page covers work nearby, about 13 miles away.
Postcode districts we cover here for window mastic: EH54. We cover properties on Allen Road, Huron Avenue and Cousland Road. Other places close to Howden include Livingston (1 mile north), Ladywell (1 mile north-west), Livingston Village (1 mile west), Dedridge (1 mile south) and Eliburn (1 mile west). Larger places within reach include Bathgate (5 miles west), Linlithgow (7 miles north-west), Whitburn (7 miles west), East Calder (3 miles east), Broxburn (3 miles north-east) and Armadale (7 miles west).
Around Howden
We work in homes and buildings around Inveralmond Community High School and The NewYearField pub, among other places. The nearest railway station is Livingston North station, roughly 1.2 miles north-west. Other landmarks nearby include Almond Valley Heritage Centre (1.2 miles west) and Illieston Castle (3.5 miles north-east). Open spaces near Howden include Dechmont Law.
Leave it or put it right?
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. Resealing now is a small job by comparison. 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.
What you pay reflects the work, not guesswork. That is why we ask about the job first and give you a clear price before we start.
What you get with us
- Trusted Arbo and Everbuild sealants
- Tidy, careful work
- Fully insured
- Domestic, commercial and hotel work
See what affects the cost and our reviews.
Do you need window mastic in Howden?
Mastic ages in the weather. UV light hardens the outside of the bead, until it loses its stretch and starts to crack.
Look out for any of the following:
- Sealant in the wrong colour for the frame
- Mastic that is falling out in pieces
- Draughty joints inside around the window
- Cold air getting in at the frame edge
Letting a property close to Livingston North station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
What to look for in a quote
- When the joint can take water or movement
- Is VAT in the price?
- Whether the sealant suits the joint
- Whether you can choose the colour
DIY sealant or a professional job?
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Howden questions
Do you cover Howden for window mastic?
Yes. Our work covers the whole of Scotland, and Howden is part of that. Just email us at info@mrmastic.co.uk with a few details of the job.
Is Howden within the area you cover?
Yes, we do. Our work covers the whole of Scotland, from towns to the smallest places. Longer journeys are simply planned in advance.
Can you reach windows above the ground floor?
Normally, yes. We plan safe access before the job, so mention the height and anything in the way.
When is the sealant fully cured?
Cure times vary by product. We tell you how long to leave it before we go.
Do you guarantee window mastic?
Yes. Our 12-month guarantee covers every job.
Will new mastic stop draughts?
Yes, where the draught is at the frame edge. We check where the draught is before work begins.
Can you do several jobs on one visit?
Yes. Several rooms, windows or areas can go on one quote.
Can landlords and businesses book you?
Yes. Domestic, commercial and hotel work are all part of what we do, and we’re fully insured.
What the job involves on each surface
Patio & French doors
Not every patio door leak is a mastic problem: blocked drain slots, worn brush seals and threshold details can let water in too. We look for the cause first.
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.
