Kent · England

Sand mastic for sash & case windows in Boughton Lees, Kent

Sand mastic in Boughton Lees from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.

  • Old cement repairs round a window that have failed
  • Modern sealant on a period surround
  • Old sand mastic that has cracked, crumbled or fallen out

Trusted sand mastic in Boughton Lees

How we handle sand mastic in Boughton Lees

Burnt sand mastic is a traditional material that sits naturally against stone and brick. It suits period and listed homes, where modern sealant can look out of place. We work on period & listed homes, stone surrounds and sash and case windows, and the jobs we see most are window mastic to renew ahead of painting and open joints round the window box.

Outdoor sealant needs dry, clean surfaces, so work on frames around Boughton Lees is planned for dry weather. Let us know about access to all the frames, upstairs ones included.

There’s a 12-month guarantee on every job.

Where
Boughton Lees (TN25)
Region
Kent
Cover
One year on every job
Price
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
Applicator reaching up to seal an external door frame on a sunny day

What sealant work cannot fix

We’d rather tell you now than do work that will not last, so these are the limits:

  • Cracked or broken glass
  • Whether work needs listed building consent
  • Sashes that need overhauling

If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think.

Joints and surfaces we work on

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

Leave it or put it right?

Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. Older cottages and farmhouses around Boughton Lees can have timber floors and frames, where water from a failed joint can cause rot if it’s left.

Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will explain what it covers.

Why choose Mr Mastic in Boughton Lees

  • Neat joints and a tidy finish
  • Trusted Arbo and Everbuild sealants
  • Homes, businesses and hotels
  • A 12-month guarantee on all work

Read what affects the cost or our reviews.

Frames and glazing around Boughton Lees

With historic houses such as Godinton House (about 3.4 miles south-west) nearby, there’s older building stock in the area around Boughton Lees as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

For an older house near a landmark such as Saint Christopher's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you let a flat or house near Wye station, older sash windows in a rental need their mastic kept sound to keep the weather out. If you look after a building such as Towers School and Sixth Form Centre, the mastic around its windows and doors needs looking after like any other building’s.

Boughton Lees is about 4 miles north of Ashford, in Kent. If you need sand mastic in Boughton Lees, please ring 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Kent. We cover 922 towns and villages across Kent, large and small. For nearby work, see our Chelmsford page.

Every address in TN25 is covered for sand mastic. Whether your property is on Wye Road, Pilgrims Way and Faversham Road or a nearby road, we can help. We also cover the places around Boughton Lees: Kennington (2 miles south), Bockhanger (2 miles south-west), Potters Corner (2 miles south-west), Westwell (2 miles west) and Godinton (3 miles south-west). Further out, we also cover Ashford (4 miles south), Canterbury (10 miles north-east), Sittingbourne (13 miles north-west), Folkestone (14 miles south-east), Whitstable (13 miles north-east) and Faversham (9 miles north).

Around Boughton Lees

We work in homes and buildings around Flying Horse Inn. The nearest railway station is Wye station, roughly 1.4 miles east. Well-known places in the area include William Harvey Hospital (3.3 miles south) and County Square (2.9 miles south-west). For a walk, there’s Hatch Park.

Map of Boughton Lees © OpenStreetMap contributors

Surface by surface

Stone surrounds

Old stone surrounds are often uneven, so the joint varies in width. Sand mastic is shaped by hand to suit.

Brick reveals

Loose mastic comes out and deep gaps are packed before the new mastic goes in.

How we quote for sand mastic

The quote reflects the job in front of us. We take into account:

  • The type of sealant required
  • The size of the job
  • Any mould that needs treating
  • How many rooms, windows or areas are involved

Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.

What we need to know

You don’t need to know the technical terms. It helps if you can tell us:

  • How many joints, rooms or windows are involved
  • What the problem is, such as mould, gaps, leaks or cracking
  • Any access issues, like height or stairs
  • Pictures of the joints, sent by email

It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, call 0345 464 0079 or send us an email.

Common questions in Boughton Lees

Is Boughton Lees in your area for sand mastic?

Yes. Our work covers London and the South East, and Boughton Lees is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we will give you a clear quote.

Do you work for landlords with property near Wye station?

Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.

Do you offer different sealant colours?

We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.

What exactly is sand mastic?

It’s a mix of sand and a linseed-oil-based binder. It’s applied by hand and finished to sit neatly against the masonry.

Are you an approved applicator?

Yes. We’re an ARBOMaster approved applicator, which is run for the Arbo sealant brand.

Are you insured?

Yes. We are fully insured.

Do I have to be there?

It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.

Where are you based?

Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.

Aftercare tips

Once the sealant has cured, a few habits help it last:

  • Ask us before painting near the mastic
  • Go gently near the mastic when preparing windows
  • Make sure water runs off the sill
  • Plan mastic work ahead of painting

Check the mastic when you check the paintwork. Small cracks are easier to deal with early.

Sound mastic protects the frame. Once it fails, water can sit against the timber and timber that stays wet can rot.

Landlords, agents and businesses in Boughton Lees

Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.

Housing providers, facilities teams and property managers book us too in Boughton Lees and across Kent. Several sites can go on one quote, and we’re fully insured for the work.

The process

When we arrive, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before we start. The work usually takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Boughton Lees, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.

  1. We start by checking each surround and agreeing the joints to renew.
  2. The loose and crumbling mastic is raked out and the joint cleaned.
  3. We pack any deep gaps so the mastic sits at the right depth.
  4. We mix the sand mastic and apply it by hand, shaping it to the joint.
  5. The mastic is finished to sit tidily against the stone or brick.

How to prepare

  • Let us know if you’ve seen damp or leaks
  • Keep children and pets away from the work area
  • Tell us about any previous sealing or DIY attempts

Get a quote

Need a quote? Please ring 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.

Get a price

Related advice

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