Kent · England

Sand mastic for sash & case windows in Cross-at-Hand, Kent

Window and door surrounds in Cross-at-Hand need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.

  • Mastic dropping out of the joint
  • Cement or filler used on old window joints that has cracked
  • A silicone bead on a sash window that spoils the look

Need sand mastic in Cross-at-Hand?

Sand mastic for homes and businesses in Cross-at-Hand

For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Like-for-like sand mastic is often the preferred finish. If you’re dealing with cracked mastic round a front door frame and draughts and rain around sash boxes, we can help, on stone surrounds, period & listed homes and timber door frames alike.

Somewhere as small as Cross-at-Hand, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.

The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.

Location
Cross-at-Hand (TN12)
Region
Kent
Guarantee
One year on every job
Quotes
A clear price before we start
Phone
0345 464 0079
Updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

What we do, step by step

On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes anything from a few hours to a full day, depending on how many windows, including the tidy-up. In a small place like Cross-at-Hand, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We check the window surrounds and agree which joints need renewing.
  2. Old, loose mastic is raked out and the joint cleaned.
  3. We pack any deep gaps so the mastic sits at the right depth.
  4. Sand mastic is mixed and applied by hand, then shaped to the joint.
  5. The finish is dressed so it sits neatly against the stone or brick.

Before we arrive

  • Where the joints are inside, avoid wetting them before we arrive
  • Mention any sign-in or site rules at work premises
  • Tell us about any water getting in

Get a quote

Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or drop us an email and describe the job and send pictures if you have them.

Ask for a quote

Related advice

What we can’t put right

It helps to know what we cannot do too:

  • Sash cords, weights and draught-proofing of the sashes
  • Masonry that needs repairing
  • Broken panes

If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.

What we seal

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

Work for landlords, hotels and businesses

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

We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured.

Different surfaces, different methods

Timber door frames

Round a period front door, sand mastic gives the right look.

Tenement and terrace windows

Upper-floor windows need access planning. Tell us the height and we’ll confirm what’s needed.

Windows and doors in Cross-at-Hand

With historic houses such as Stoneacre (about 4.6 miles north) nearby, there’s older building stock in the area around Cross-at-Hand as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic. 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.

Stoneacre, about 4.6 miles north, is one of the historic houses in the wider area around Cross-at-Hand.

Cross-at-Hand is about 5 miles south of Maidstone, in Kent. We carry out sand mastic for householders, landlords and businesses in Cross-at-Hand. Cross-at-Hand is one of 922 towns and villages in Kent where we work for sand mastic. You can also see our page for Crawley, roughly 32 miles from Cross-at-Hand.

Here we cover the TN12 postcode area for sand mastic. Sand mastic is available to properties on Staplehurst Road and Woodford Park and the roads around them. Close by, we work in Rabbit's Cross (1 mile north), Devil's Den (1 mile east), Wanshurst Green (1 mile south-west), St Ann's Green (1 mile west) and Underling Green (1 mile west). Within a short drive, we also cover Maidstone (5 miles north), Ashford (14 miles east), Sittingbourne (13 miles north-east), Royal Tunbridge Wells (13 miles west), Tonbridge (12 miles west) and Kings Hill (8 miles north-west).

Near you in Cross-at-Hand

The nearest railway station is Staplehurst station, about 1.2 miles south of the centre. Well-known places in the area include Sutton Valence Castle (2.8 miles north-east) and South East Romany Museum (1.8 miles south-west).

Map of Cross-at-Hand © OpenStreetMap contributors

When to call us in Cross-at-Hand

Scraping and sanding before painting can loosen old mastic. It’s often found when windows are being prepared for paint.

Look out for these signs:

  • A silicone bead on a sash window that spoils the look
  • Crumbling sand mastic round a window
  • Open joints round the window box
  • Patchy fillers round a sash window

If you let a flat or house near Staplehurst station, older sash windows in a rental need their mastic kept sound to keep the weather out.

Before booking anyone

  • How long the guarantee is
  • Whether the sealant suits the joint
  • When the joint can take water or movement
  • Is the old sealant removed completely?

10 questions to ask before booking

Should I try it myself first?

A DIY attempt does not rule out a professional job. We cut it out and start again, so just mention it when you contact us.

Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.

FAQs for Cross-at-Hand

Can you help a landlord with a rental near Staplehurst station?

Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.

Do you cover Cross-at-Hand for sand mastic?

Yes, Cross-at-Hand is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.

Will there be a smell?

There can be a smell while the sealant cures, but it fades. Opening a window helps.

Is it worth trying it myself?

Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.

Can new sealant go over the old?

No, it will not last. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.

Can I add another job to the visit?

Yes. Tell us about everything you’d like done and you’ll get one quote.

Is the work guaranteed?

Our 12-month guarantee covers every job, sand mastic included.

Can you replace silicone on a period window with sand mastic?

Yes. The silicone is cut out and the joint cleaned, then point it with sand mastic.

How we quote for sand mastic

For a quick quote, just ask. What matters most is:

  • The product the joint needs
  • Any working-time requirements on site
  • Access and height
  • The size of the job

No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we will explain the quote if you ask.

What we need to know

What to tell us when you ask for a quote:

  • If it’s domestic, commercial or a hotel
  • The rough size of the job
  • Access, such as stairs, a lift or height
  • Whether it has been sealed before

To get a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. We will send you a clear quote before any work starts.

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