Kent · England

Hazel Street Sand Mastic

Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Hazel Street, with a 12-month guarantee on every job. Ask us for a quote.

  • Cracked mastic round a front door frame
  • Modern sealant on a period surround
  • Failed mastic on an exposed elevation

Sand mastic in Hazel Street

When it isn’t the sealant

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

  • Planning or listed building consent (your local planning authority decides)
  • Broken panes
  • Decayed frames that need repair

If in doubt, ring 0345 464 0079 or email us and we will say what we think.

Surfaces we seal

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

Sand mastic in Hazel Street, done properly

Across Hazel Street, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. We work on sash and case windows, brick reveals and stone surrounds, and the jobs we see most are open joints round the window box and cement or filler used on old window joints that has cracked.

In a village or hamlet like Hazel Street, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.

The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we will sort it.

Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter
Location
Hazel Street (TN12)
Region
Kent
Guarantee
One year on every job
Quote
A clear price before work begins
Phone
0345 464 0079
Last updated
26 October 2026

Hazel Street questions

Do you work for landlords with property near Paddock Wood station?

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

Is Hazel Street in your area for sand mastic?

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

Will the old sealant be removed?

Yes, every time. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.

Are you an approved applicator?

Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.

Is there any odour?

Sometimes, a little. It fades as the sealant cures.

Is sand mastic better than silicone for my windows?

It depends on the window. Period windows in stone or brick normally suit sand mastic, while modern frames normally get a flexible sealant.

How long does sand mastic take to go off?

It takes a while. The skin forms first, and the full set comes later and we will give you an idea for your job.

Which products do you use?

It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.

Landlord and commercial work in Hazel Street

A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.

For anyone letting property in or around Hazel Street, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.

What we’re called out for in Hazel Street

Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows, which is a good time to renew it.

These are the problems we are asked about most:

  • Old sand mastic that has cracked, crumbled or fallen out
  • Failed mastic on an exposed elevation
  • Cement or filler used on old window joints that has cracked
  • Gaps between timber frames and stone or brick

If you look after a building such as Horsmonden Primary School, its window and door frames need their mastic kept sound, just like a home’s.

What to look for in a quote

  • What preparation is included
  • Whether the sealant suits the joint
  • Which colour the sealant will be
  • How long to leave it before use

Choosing a sealant specialist

Surface by surface

Period and listed homes

Sand mastic is the like-for-like choice for many period homes. On listed buildings, check with your planning authority first.

Timber door frames

Period doors in stone or brick openings are often pointed with sand mastic. The method is the same as for windows.

What affects the quote in Hazel Street

We quote each job individually. This is what makes a difference:

  • Any mould that needs treating
  • The old material and how stubborn it is
  • How easy the joints are to reach
  • When we can work, for business premises

A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re not sure whether it needs doing, phone 0345 464 0079 or drop us an email and we will give you an honest view and a quote.

Asking for a quote

Before you ask for a quote, have a think about:

  • The problem you’ve noticed
  • Pictures of the joints, sent by email
  • The rough size of the job
  • The address or postcode of the job

Need a quote? Please call 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and send you a clear quote before any work starts.

DIY sealant or a professional job?

Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.

The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.

How the visit works

You don’t need to clear the whole room or building before we come, only the area right around the joints. Everything nearby is protected, and the work takes anything from a few hours to a full day, depending on how many windows in most cases. In a small place like Hazel Street, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First, we look at the surrounds with you and agree what needs doing.
  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 finish is dressed so it sits neatly against the stone or brick.

Getting ready for the visit

  • Tell us about any water getting in
  • Keep children and pets away from the work area
  • Tell us if parking is tricky

Get a quote

Quotes start with a quick conversation. 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 drop us an email.

Get a quick quote

Related advice

Frames and glazing around Hazel Street

The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Scotney Castle (about 2.7 miles south) nearby, there’s older building stock in the area around Hazel Street as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.

In the older streets around Church of St Margaret, the joint between an old wall and a newer frame is usually the first place rain gets in. Letting a property close to Paddock Wood station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.

Hazel Street is about 7 miles east of Royal Tunbridge Wells, in Kent. For sand mastic in and around Hazel Street, it’s easy to get a quote: please call 0345 464 0079 or email us. We are based in Crawley and cover Kent. Our Kent coverage runs to 922 places, Hazel Street among them. Crawley is on our list too, about 27 miles from Hazel Street.

All of TN12 is within our area for sand mastic. Sand mastic is available to properties on Lamberhurst Road and Spelmonden Road and the roads around them. Nearby, we also carry out sand mastic in Horsmonden (1 mile north-east), Smallbridge (1 mile south-east), Capel Cross (1 mile east), Broad Ford (1 mile east) and Palmer's Green (2 miles north). We also work in nearby towns such as Maidstone (10 miles north-east), Sevenoaks (15 miles north-west), Royal Tunbridge Wells (7 miles west), Tonbridge (8 miles north-west), Kings Hill (10 miles north) and Foley Park (11 miles north-east).

Local landmarks in Hazel Street

Around Hazel Street, our work takes us to homes and buildings near The Gun And Spitroast Public House And Rear Courtyard and the streets around them. For rail, the closest station is Paddock Wood station, roughly 3.9 miles north of the centre. Nearby you’ll also find Old Scotney Castle (2.7 miles south) and Tunbridge Wells Hospital (5.1 miles west). Not far away are Bewl Water.

Map of Hazel Street © OpenStreetMap contributors
20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job