West Berkshire · England

Sand Mastic in Heads Hill

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

  • Tired mastic found when preparing windows for paint
  • Modern sealant on a period surround
  • Weathered mastic on the most exposed windows

Trusted sand mastic in Heads Hill

Sand mastic in Heads Hill, done properly

On many period windows, sand mastic looks right and suits the building. Newer frames normally get a flexible sealant instead and we’ll explain which is best for yours. We work on period & listed homes, sash and case windows and tenement windows, and common reasons people get in touch are draughts and rain around sash boxes and modern sealant on a period surround.

Somewhere as small as Heads Hill, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.

We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.

Applicator reaching up to seal an external door frame on a sunny day
Place
Heads Hill (RG19, RG20)
Wider area
West Berkshire
Cover
One year on every job
Quotes
A clear quote up front
Phone
0345 464 0079
Last updated
26 October 2026

Your questions about sand mastic in Heads Hill

Do you cover Heads Hill for sand mastic?

Yes. Our work covers London and the South East, and Heads Hill is part of that. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear price.

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

Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.

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

It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish but the decision is theirs.

Do you hold any approvals?

Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.

Which is right for my windows, sand mastic or modern sealant?

We’ll talk it through with you. Period homes often look best with sand mastic and newer frames suit modern sealant.

Can you seal over the old sealant?

No, because it fails. The old sealant always comes out first, so the new sealant bonds properly.

Do you do commercial work?

Yes. Hotels, offices and other businesses use us.

Are you insured?

Yes. Full insurance covers our work, and we can confirm the details when we quote.

What sealant work can’t fix

A few problems are outside what sealant work can do:

  • Sash cords, weights and draught-proofing of the sashes
  • Crumbling stone or brickwork round the window
  • Decisions on consent for listed homes

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

Surfaces we seal

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

What affects the quote in Heads Hill

Jobs vary more than people expect. What affects the quote:

  • Whether there’s mould to deal with
  • Which sealant suits the joint
  • Whether the work is at height
  • How much there is to do

A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.

Helping us quote

To help us quote quickly, please include:

  • Pictures of the joints, sent by email
  • The type of property
  • Any previous sealing or DIY work
  • The rough size of the job

We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or drop us an email.

DIY sealant or a professional job?

A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.

Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.

What sand mastic looks like in Heads Hill

With historic houses such as Shaw House (about 3.3 miles north-west) nearby, there’s older building stock in the area around Heads Hill 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 is traditional sand mastic. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.

If you let a flat or house near Thatcham station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Schools such as Cheam School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.

Heads Hill is about 2 miles south of Thatcham, in West Berkshire. Heads Hill gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a 12-month guarantee. Heads Hill is one of 155 places in West Berkshire where we work. Our Reading page covers work nearby, about 14 miles away.

Every address in RG19 and RG20 is covered for sand mastic. Whether your property is on Main Street, Thornford Road and Second Street East or anywhere close by, we can help. If you’re just outside Heads Hill, we cover Bishop's Green (1 mile south-west), Headley (1 mile south-east), Bury's Bank (1 mile north-west), Mill Green (1 mile south-east) and Goose Hill (2 miles south-east). Within a short drive, we also cover Newbury (3 miles north-west), Burghfield Common (9 miles east), Speenhamland (3 miles north-west), Hungerford (11 miles west), Spencers Wood (13 miles east) and Calcot (11 miles north-east).

Around Heads Hill

Around Heads Hill, our work takes us to homes and buildings near New Greenham Park and Kennet School. Heads Hill’s nearest station is Thatcham station, about 1.9 miles north-east of the centre. A little further out are Donnington Castle (4.3 miles north-west) and West Berkshire Community Hospital (2.4 miles north). Open spaces near Heads Hill include Thatcham Reed Beds and Ladle Hill.

Map of Heads Hill © OpenStreetMap contributors

Aftercare tips

Once the sealant has cured, a few habits help it last:

  • Do not paint over the new mastic
  • Check with your local planning authority if your home is listed
  • Look over the window mastic once a year
  • Keep modern sealant off the mastic

Check the mastic when you check the paintwork. Small cracks are easier to deal with early.

Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall so early renewal protects both.

How it works

On the day, we look over the joints with you first. We protect the surfaces around the joints before we start. Most jobs take a few hours per window, depending on the condition of the joints. For a village or hamlet like Heads Hill, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  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. Large voids are packed out first, so the mastic is not too thick.
  4. We mix the sand mastic and apply it by hand, shaping it to the joint.
  5. The mastic is finished to sit tidily against the stone or brick.

Preparing for the visit

  • Plan for the work area to be out of bounds to pets and children
  • Tell us about access, such as stairs, a lift or high-level joints
  • Move anything stored near the joints

Ask for a quote

It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you’re ready, ring 0345 464 0079 or drop us an email.

Ask for a quote

Read more

Signs you need sand mastic in Heads Hill

Age is the main cause. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.

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

  • Cracked mastic round a front door frame
  • Weathered mastic on the most exposed windows
  • A silicone bead on a sash window that spoils the look
  • Cement or filler used on old window joints that has cracked

In the older streets around Church of St Peter, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

What your quote should include

  • Whether all the old sealant comes out first
  • The length of the guarantee
  • What preparation is included
  • Are they insured?

10 questions to ask before booking

What happens if it’s left?

Before painting the windows, it pays to renew the mastic. Painting over failed mastic doesn’t seal it and traditional guidance is to leave the new mastic unpainted. Where a wall is exposed, as many are in small places like Heads Hill, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.

No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.

What you get with us

  • Experience in homes, commercial sites and hotels
  • An ARBOMaster approved applicator
  • We never seal over old sealant
  • Tidy, careful work

Read our cost guide or our reviews.

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