Kent · England

Sand mastic for sash & case windows in Hollingbourne, Kent

Specialist sand mastic for Hollingbourne: careful preparation, the right product and tidy work. Ask us for a quick quote.

  • Mastic worn away on windows facing the weather
  • Tired mastic found when preparing windows for paint
  • Crumbling sand mastic round a window

Trusted sand mastic in Hollingbourne

Quotes for sand mastic in Hollingbourne

The quote reflects the job in front of us. We look at:

  • How much old sealant there is and how hard it is to remove
  • Access and height
  • The number and length of the joints
  • Which sealant suits the joint

Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.

Helping us quote

To make quoting easier, let us know:

  • What the problem is, such as mould, gaps, leaks or cracking
  • The type of property
  • Photos by email, if that is easy
  • Roughly how big the job is

Getting a quote is simple: let us know what needs doing and where and its rough size. A few photos by email make the job easier to understand, and we’ll take it from there.

Sand mastic for homes and businesses in Hollingbourne

If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Like-for-like sand mastic is often the preferred finish. Typical jobs include old sand mastic that has cracked, crumbled or fallen out and cement or filler used on old window joints that has cracked, on brick reveals, period & listed homes and tenement windows.

Homes in small places like Hollingbourne often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.

You are covered for a year from the day we finish. If anything is not right with it, call 0345 464 0079 or send us an email.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Where
Hollingbourne (ME17)
Region
Kent
Guarantee
A year, on every job
Quotes
A clear quote up front
Call
0345 464 0079
Updated
26 October 2026

Different surfaces, different methods

Stone surrounds

Old stone surrounds are often uneven, so the gap is not the same all the way round. We shape it by hand to follow the stone.

Timber door frames

A neat sand mastic joint round a front door suits a period home.

Should I try it myself first?

If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.

Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

FAQs for Hollingbourne

Is Hollingbourne in your area for sand mastic?

Yes, Hollingbourne is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or send us an email and let us know what needs doing.

Do you cover smaller places like Hollingbourne?

Yes. Hollingbourne is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

Is the work guaranteed?

Our one-year guarantee covers every job.

Where is Mr Mastic based?

Mr Mastic is based in Crawley. We cover Hollingbourne and the rest of Kent, along with the rest of our area.

Can I choose the sealant colour?

Generally, yes. White, clear and grey are common, and other colours are available for many products, and we will agree it with you first.

How long does the job take?

That depends on how much there is to do, but as a guide it takes anything from a few hours to a full day, depending on how many windows. We will tell you when we quote.

Is it possible to take out silicone and use sand mastic instead?

Often, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.

Will you leave a mess?

No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.

What we’re called out for in Hollingbourne

Some old mastic was never deep enough. Mastic that’s too thin cracks and drops out, which is why we pack deep voids first and get the depth right.

Most people get in touch when they notice something like this:

  • Mastic that needs renewing before redecorating
  • Gaps between timber frames and stone or brick
  • Mastic dropping out of the joint
  • Weathered mastic on the most exposed windows

For an older house near a landmark such as All Saints Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.

Questions to ask before you book

  • What guarantee comes with the work
  • Is the old sealant removed completely?
  • What happens if they find a problem under the old sealant
  • Whether the sealant suits the joint

10 questions to ask before you book

What we do, step by step

All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. It normally takes anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Hollingbourne, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.

  1. We check each window surround and the condition of the joint.
  2. The joint is raked out and cleaned.
  3. Large voids are packed out.
  4. New sand mastic is applied and shaped by hand.
  5. We finish the mastic to a tidy line.

How to prepare

  • Tell us about access, such as stairs, a lift or high-level joints
  • Clear the area around the work
  • Where the joints are inside, avoid wetting them before we arrive

Getting a quote

For a quick quote, get us on the phone, or email us if that is easier. Tell us about the joints that need doing and we’ll talk you through the work.

Get a quick quote

Read more

Landlord and commercial work in Hollingbourne

Letting agents and landlords in Hollingbourne can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order before the next move-in.

In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.

Frames and glazing around Hollingbourne

Historic houses like Leeds Castle (about 1.3 miles south-west) are a reminder that the area around Hollingbourne has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

Letting a property close to Hollingbourne station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about. Schools such as Hollingbourne Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.

Hollingbourne is about 5 miles east of Maidstone, in Kent. Wherever you are in the ME17 postcode area, we cover sand mastic for homes and businesses. We cover 922 towns and villages across Kent. We also work in Chelmsford, about 33 miles from Hollingbourne.

Postcode districts we cover here for sand mastic: ME17. Local streets include Upper Street, Pilgrims Way and Hollingbourne Hill. Neighbouring places we cover for sand mastic include Eyhorne Street (1 mile south-west), Broad Street (1 mile north-west), Chegworth (2 miles south), Ashbank (2 miles south-west) and Broomfield (2 miles south). Larger places within reach include Maidstone (5 miles west), Ashford (13 miles south-east), Sittingbourne (7 miles north-east), Faversham (11 miles east), Minster (13 miles north-east) and Kings Hill (10 miles west).

What’s near Hollingbourne

Locally, jobs take us to homes and businesses close to Glyder House Sugar Loaves Public House, among other places. Hollingbourne’s nearest station is Hollingbourne station, about 0.6 miles west of the centre. Well-known places in the area include Laundry Museum (0.9 miles south-west) and Leeds Castle (1.3 miles south-west). Not far away are Detling Hill.

Map of Hollingbourne © OpenStreetMap contributors

What we cannot put right

In fairness, some problems need a different trade:

  • Damaged stone surrounds
  • Whether work needs listed building consent
  • Decayed frames that need repair

Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly.

Joints and surfaces we work on

  • Timber door frames
  • Brick reveals
  • Stone surrounds
  • Period & listed homes
  • Sash and case windows
  • Tenement windows
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job