West Berkshire · England

Wickham Heath Sand Mastic

Specialist sand mastic for Wickham Heath: the right sealant, proper preparation and a neat finish. Call for a quick quote.

  • Gaps round a timber door in stone or brick
  • Cement or filler used on old window joints that has cracked
  • Crumbling sand mastic round a window

Sand mastic for Wickham Heath homes and businesses

What affects the quote in Wickham Heath

We do not publish a price list, because no two jobs are the same. What we look at:

  • Any mould that needs treating
  • The number and length of the joints
  • Which sealant suits the joint
  • How many rooms, windows or areas are involved

Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.

What to tell us for a quote

To make quoting easier, please include:

  • Where the property is
  • A few photos by email, if you can
  • How many joints, rooms or windows are involved
  • What the problem is, such as mould, gaps, leaks or cracking

If you’re in Wickham Heath and need sand mastic, phone 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.

Sand mastic in Wickham Heath

For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. If you’re dealing with tired mastic found when preparing windows for paint and cracked mastic round a front door frame, we can put it right, whatever the surface.

Around Wickham Heath, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.

Our work is backed for twelve months.

Mr Mastic applicator sealing the top of a white uPVC door frame on a red-brick house
Place
Wickham Heath (RG20)
Wider area
West Berkshire
Guarantee
12 months on all our work
Quotes
A clear price before any work starts
Phone
0345 464 0079
Page updated
26 October 2026

What sand mastic looks like in Wickham Heath

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 Benham Park (about 1.8 miles south-east) nearby, there’s older building stock in the area around Wickham Heath 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.

If you let a flat or house near Kintbury station, any sash windows need sound mastic to keep draughts and rain out. Homes close to Parish Church of St Andrew include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.

Wickham Heath is about 4 miles north-west of Newbury, in West Berkshire. Every kind of property in Wickham Heath is covered for sand mastic, old or new, large or small. Every job comes with our one-year guarantee. Our West Berkshire coverage runs to 155 places, and Wickham Heath is one of them. Our Reading page covers work nearby.

Jobs for sand mastic in RG20 works the same way as everywhere else we cover. Close by, we work in Stockcross (1 mile south-east), Boxford (1 mile north-east), Marsh Benham (2 miles south), Bagnor (2 miles south-east) and Winterbourne (2 miles north-east). Further out, we also cover Newbury (4 miles south-east), Thatcham (6 miles east), Burghfield Common (14 miles east), Speenhamland (3 miles south-east), Hungerford (5 miles west) and Calcot (15 miles east).

Near you in Wickham Heath

Around Wickham Heath, our work takes us to homes and buildings near The Bell pub, among other places. Wickham Heath’s nearest station is Kintbury station, about 2.7 miles south-west. A little further out are British Balloon Museum & Library Ltd (3.5 miles south-east) and Hamstead Marshall 3 (1.9 miles south). Open spaces near Wickham Heath include Sole Common Pond.

Map of Wickham Heath © OpenStreetMap contributors

DIY sealant or a professional job?

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

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.

Surface by surface

Period and listed homes

Sand mastic is the like-for-like choice for many period homes. If your home is listed, ask your local planning authority about consent.

Sash and case windows

The mastic round a sash window is on show so we finish it carefully.

What we cannot put right

In fairness, some problems need a different trade:

  • Rotten sashes, sills or window boxes (a joiner’s job)
  • Crumbling stone or brickwork round the window
  • Sashes that rattle, stick or will not open

If in doubt, phone 0345 464 0079 or send us an email and we will say what we think before booking.

Where we work in Wickham Heath

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

How the visit works

Good joint work is mostly preparation, and we don’t rush it. Joints are cleaned back and dried before anything new goes in. All told, the work takes a few hours for a single window, longer for several. In a small place like Wickham Heath, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. First we agree which joints need doing.
  2. Old mastic and any loose material are raked out.
  3. We pack any deep voids first.
  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

  • Tell us if parking is tricky
  • Keep children and pets away from the work area
  • Tell us about any previous sealing or DIY attempts

Get a quote

There’s no standard price list, because every job is different. Instead, we give you a clear price for your job. To get started, ring 0345 464 0079 or send us an email.

Get a quick quote

Read more

What happens if it’s left?

Gaps round a sash window let in rain and draughts. Water can get to the frame and the masonry, so dealing with it now protects both. Around Wickham Heath, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.

Doing several joints on one visit normally makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear price for the lot.

Why us?

  • Any old sealant cut out fully, not covered over
  • Homes, businesses and hotels
  • Rated 4.9 stars on Google
  • Full insurance on every job

Take a look at what affects the cost or what customers say.

Wickham Heath questions

Will you come out to Wickham Heath?

Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.

I let a flat near Kintbury station. Can you help?

Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.

How long does the job take?

As a guide, most jobs take anything from a few hours to a full day, depending on how many windows. Bigger jobs take longer.

Which products do you use?

Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.

Is it OK to seal over old sealant?

No. New silicone won’t bond to old silicone, and it traps any mould or water underneath. It all has to come out first.

Is sand mastic better than silicone for my windows?

Sand mastic normally suits period timber windows best. On modern frames, we’d normally use a flexible sealant.

What is sand mastic?

Sand plus a binder based on linseed oil. It’s built up in the joint by hand and shaped to suit the surround.

Are you fully insured?

Yes. We’re fully insured, and we can confirm the details when we quote.

Signs you need sand mastic in Wickham Heath

Timber frames move with the seasons. The movement cracks the mastic over time.

The problems people generally mention when they call include:

  • Draughts and rain around sash boxes
  • Tired mastic found when preparing windows for paint
  • Mastic worn away on windows facing the weather
  • Gaps between timber frames and stone or brick

Schools such as Stockcross C.E. School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.

Comparing quotes

  • How long the guarantee is
  • Whether you can choose the colour
  • What happens if they find a problem under the old sealant
  • Is the old sealant removed completely?

How to choose a mastic man

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