West Lothian · Scotland

Sand Mastic in Dechmont

Sand mastic for Dechmont and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.

  • Gaps between timber frames and stone or brick
  • A silicone bead on a sash window that spoils the look
  • Cement or filler used on old window joints that has cracked

Book sand mastic in Dechmont

How we handle sand mastic in Dechmont

Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant and we’ll explain which is best for yours. If you have mastic worn away on windows facing the weather and cement or filler used on old window joints that has cracked, we can help.

In and around a place like Dechmont, homes range from older stone-built cottages to newer houses. Wind-driven rain finds any gap around a frame or sill.

Your job is guaranteed for a year, as with all our work.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Place
Dechmont (EH52)
Region
West Lothian
Cover
One year on every job
Quote
Quoted before any work starts
Email
info@mrmastic.co.uk
Updated
26 October 2026

What we cannot put right

Before you book, it’s worth knowing the limits too:

  • Crumbling stone or brickwork round the window
  • Planning or listed building consent (your local planning authority decides)
  • Timber that has rotted

Not sure which it is? You can send an email to info@mrmastic.co.uk and we will tell you honestly.

Joints and surfaces we work on

  • Period & listed homes
  • Stone surrounds
  • Timber door frames
  • Brick reveals
  • Tenement windows
  • Sash and case windows

How the job changes by surface

Period and listed homes

Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.

Tenement and terrace windows

Where a building is shared, window work may involve neighbours so it’s worth checking responsibilities.

Sand mastic in Dechmont: local notes

Under the Repairing Standard, private landlords in Scotland have to keep homes wind and watertight, and sound outside sealant is part of that. With historic houses such as Howden House (about 2.1 miles south) nearby, there’s older building stock in the area around Dechmont as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.

Rented homes near Uphall station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. If you live in an older home near Former Memorial Church, the joint between an old wall and a newer frame is normally the first place rain gets in.

Dechmont is about 2 miles north of Livingston, in West Lothian. We carry out sand mastic for householders, landlords and businesses in Dechmont, as part of our work across West Lothian. Our West Lothian coverage runs to 58 places, and Dechmont is one of them. We also work in Edinburgh, about 13 miles from Dechmont.

Here we cover the EH52 postcode area for sand mastic. Local streets include Main Street, Knightsridge Road and Burnhouse Drive. We also cover the places around Dechmont: Knightsridge (1 mile south-east), Uphall Station (1 mile east), Kirkton (1 mile south), Uphall (1 mile north-east) and Deans (1 mile south-west). Larger places within reach include Bathgate (4 miles west), Linlithgow (5 miles north-west), Whitburn (7 miles south-west), East Calder (4 miles south-east), Armadale (7 miles west) and Calderwood (4 miles east).

Around Dechmont

The nearest railway station is Uphall station, about 1.3 miles east. Well-known places in the area include Illieston Castle (3.8 miles east) and Broxburn Community Museum (2.1 miles east). Not far away are Dechmont Law and Linlithgow Loch.

Map of Dechmont © OpenStreetMap contributors

What we do, step by step

Good joint work is mostly preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours per window, depending on the condition of the joints. In smaller Scottish places, parking is normally less of an issue than access and distance. Let us know how to find you and how to reach the joints.

  1. First we agree which joints need doing.
  2. We remove the old, loose mastic.
  3. Deep gaps are packed so the mastic sits at the right depth.
  4. We apply the mastic by hand and shape it.
  5. We dress the finish so it sits neatly against the masonry.

Preparing for the visit

  • Let us know about stairs, lifts or work at height
  • Let us know about earlier repairs to the joints
  • Keep pets and children clear of the area while we work

Getting a quote

There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To get started, email us at info@mrmastic.co.uk.

Get a price

Advice

How to look after the new joints

Good habits help new joints last longer. Our tips:

  • Check the mastic when you check the paintwork
  • Avoid heavy scraping on the mastic joint
  • Leave the new mastic unpainted
  • Get any rot dealt with first

Don’t touch or press the mastic while it hardens. It forms a skin fairly soon, but takes longer to harden fully.

Gaps round a sash box let in draughts and rain. The longer it’s left, the more the joint opens.

Should I try it myself first?

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.

The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.

Do you need sand mastic in Dechmont?

Most of it is simply age. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.

If you can see any of these, it’s time to have the joints looked at:

  • Mastic dropping out of the joint
  • Window mastic to renew ahead of painting
  • Cracked mastic round a front door frame
  • Open joints round the window box

Managing a site like Deans Community High School? Then the mastic around its windows and doors needs looking after like any other building’s.

Comparing quotes

  • Which sealant they’ll use, and why
  • What preparation is included
  • Whether you can choose the colour
  • Is the old sealant removed completely?

Choosing a sealant specialist

Dechmont: your questions answered

Do you cover smaller places like Dechmont?

Yes, smaller places are covered as well as towns. Our work covers the whole of Scotland. Just mention lanes, gates or anything else about the route when you book.

Do you work for landlords with property near Uphall station?

Yes, we work for landlords and letting agents. Just send an email to info@mrmastic.co.uk and tell us about the property, and we’ll give you a clear price.

Is it worth trying it myself?

For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.

Do you work for hotels and businesses?

Yes. We’ve worked for hotels, offices and other businesses and we are fully insured.

Do you have insurance?

Yes. We are fully insured.

Can I choose the sealant colour?

Generally, yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before we start.

Can old silicone round a sash window be swapped for sand mastic?

Yes, it’s a common request. All the old silicone is removed first so the mastic beds in well.

What sealant do you use?

Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We will tell you what we’re using and why.

What happens if it’s left?

Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. When the nearest tradesperson is a drive away, it’s tempting to leave a small leak, but water behind a failed seal does the most damage when nobody’s watching.

The cost reflects the work involved, not guesswork. That’s why we ask about the job first and agree the price before starting.

What you get with us

  • 20+ years of sealant experience
  • Anti-fungal sanitary silicone in wet areas
  • Full insurance on every job
  • Neat joints and a tidy finish

Read what affects the cost and what customers say.

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job