Kent · England

Sand mastic for sash & case windows in Priestwood, Kent

We cover Priestwood for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.

  • Cracked mastic round a front door frame
  • Draughts and rain around sash boxes
  • Patchy fillers round a sash window

Sand mastic in Priestwood

Sand mastic in Priestwood, done properly

Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditionally, sand mastic is left unpainted and we’ll advise if you are redecorating. Common call-outs are for gaps where the frame meets the masonry and crumbling sand mastic round a window, on period & listed homes, brick reveals and tenement windows.

Homes in small places like Priestwood 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.

Every job is covered by a 12-month guarantee, wherever you are in Kent.

Where
Priestwood (DA13)
Region
Kent
Cover
One year on every job
Quotes
A clear quote up front
Telephone
0345 464 0079
Last updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

What sealant work can’t fix

We’ll always be straight with you, so here’s what sealant cannot fix:

  • Timber that has rotted
  • Sashes that need overhauling
  • Whether work needs listed building consent

If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.

What we seal

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

What affects the quote in Priestwood

The price is agreed before any work begins. It takes into account:

  • How many areas need sealing
  • Whether the work is at height
  • Working hours on commercial sites
  • The size of the job

Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.

Asking for a quote

A few details help us give you an accurate quote. When you ask for a quote, tell us:

  • How we’d reach the joints
  • What the problem is, such as mould, gaps, leaks or cracking
  • Pictures of the joints, sent by email
  • The address or postcode of the job

Call for a quick quote, or email us if that is easier. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.

Priestwood homes and the weather

London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Cobham College (about 2.6 miles north-east) nearby, there’s older building stock in the area around Priestwood 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.

Schools such as Meopham School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Sole Street station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.

Priestwood is about 5 miles south of Gravesend, in Kent. We carry out sand mastic for homeowners, landlords and businesses in Priestwood and nearby, as part of our work across Kent. Priestwood is one of 922 towns and villages in Kent where we work. For nearby work, see our London page.

Jobs for sand mastic in DA13 works the same way as everywhere else we cover. You’ll find streets such as Chandler's Hill, Chandler's Road and Priestwood Road, and we cover them all. If you’re just outside Priestwood, we cover Priestwood Green (1 mile south-west), Harvel (1 mile south), South Street (1 mile west), Foxendown (1 mile north) and Culverstone Green (1 mile south-west). Within a short drive, we also cover Maidstone (9 miles south-east), Dartford (9 miles north-west), Sevenoaks (10 miles south-west), Gravesend (5 miles north), Tonbridge (12 miles south) and Northfleet (5 miles north).

What’s near Priestwood

Typical jobs here are in homes near Camer Park Country Park. Priestwood’s nearest station is Sole Street station, roughly 1.9 miles north of the centre. Nearby you will also find Leybourne Castle (4.1 miles south-east) and Coldrum Long Barrow (2.4 miles south). The countryside around Priestwood includes Ranscombe Farm.

Map of Priestwood © OpenStreetMap contributors

Can I do it myself?

A DIY attempt does not rule out a professional job. We cut it out and start again.

The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.

Do you need sand mastic in Priestwood?

Some old mastic was never deep enough. A thin layer doesn’t hold well so we make sure the new mastic is the right thickness.

It’s worth asking for a quote if you see:

  • Silicone on a period window that looks wrong
  • Cracked mastic round a front door frame
  • Wind and rain getting in round a sash window
  • Patchy fillers round a sash window

If you live in an older home near Church of Our Lady of the Meadow, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

What your quote should include

  • Are they insured?
  • What the cure time is
  • Is the old sealant removed completely?
  • The length of the guarantee

Our hiring checklist

Different surfaces, different methods

Timber door frames

Sand mastic is used round timber door frames too. We renew it the same way as on windows.

Sash and case windows

A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.

For landlords and businesses

We work for landlords and letting agents as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order.

In hotels, rooms out of use cost money, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.

Common questions in Priestwood

Can you help a landlord with a rental near Sole Street station?

Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. You can call 0345 464 0079 or email us with the details for a clear quote.

Is Priestwood within the area you cover?

Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.

How much does sand mastic cost in Priestwood?

It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or email us with a short description of the job.

Do you remove the old sealant?

Yes. Sealing over the old bead is the commonest cause of early failure, so we never do it.

Is it messy?

No. We protect the surfaces around the joints, and we tidy up before we go.

Is the work guaranteed?

All our work has a one-year guarantee, and we’re fully insured.

Do I need permission for sand mastic on a listed building?

Speak to your local planning authority before work starts. Sand mastic is often favoured as like for like but the decision is theirs.

How long does sand mastic take to go off?

It forms a skin fairly soon, then hardens over a longer period. Timing depends on the weather and the joint.

How the visit works

We keep the work tidy and contained to the area we’re working on. The job generally takes a few hours per window, depending on the condition of the joints, and we explain the cure time before we leave. Somewhere as small as Priestwood, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We look at the surrounds with you and agree the joints to renew.
  2. We remove the old, loose mastic.
  3. Deep gaps are packed so the mastic sits at the right depth.
  4. The sand mastic is mixed and pressed into the joint by hand.
  5. We dress the finish so it sits neatly against the masonry.

Getting ready for the visit

  • Mention any parking rules near the property
  • Tell us about any previous sealing or DIY attempts
  • On commercial sites, let us know about site rules

Ask for a quote

Need a quote? Please call 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and send you a clear quote before we start.

Get a quick quote

Advice

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