Slough · England

Hedgerley Sand Mastic

Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Hedgerley. Fully insured, ARBOMaster approved and guaranteed for a year.

  • Cement or filler used on old window joints that has cracked
  • Draughts and rain around sash boxes
  • Gaps where the frame meets the masonry

Sand mastic near Hedgerley

How we handle sand mastic in Hedgerley

Across Hedgerley, we renew sand mastic around sash and case windows. Every joint is cleaned out and filled by hand, finished to suit the masonry. We are often asked to deal with mastic worn away on windows facing the weather and old cement repairs round a window that have failed, across brick reveals, tenement windows and period & listed homes.

Around Hedgerley, 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.

A one-year guarantee comes as standard, so you are covered after we’ve gone.

Where
Hedgerley (SL2)
Region
Slough
Cover
A year, on every job
Quote
Quoted before any work starts
Telephone
0345 464 0079
Page updated
26 October 2026
Outdoor mastic being applied where a white frame meets red brickwork, below the fascia and gutter

Common questions in Hedgerley

Do you cover Hedgerley for sand mastic?

Yes, Hedgerley is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear quote.

I let a flat near Gerrards Cross station. Can you help?

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

Do you offer different sealant colours?

In most cases you can choose. We will tell you which colours the right product comes in.

Will it make a mess?

Very little: the area around the joints is protected first, and we tidy up before we go.

What information do you need?

Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or drop us an email.

Which products do you use?

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

Will the old sealant be removed?

Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.

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

Usually, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.

What happens on the day

A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and clear up. Most jobs take a few hours for a single window, longer for several. Somewhere as small as Hedgerley, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.

  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.

Preparing for the visit

  • Mention any tricky access
  • Mention if the joints have been sealed before
  • Clear the area around the work

Get a quote

Call for a quick quote, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved.

Ask for a quote

Read more

When something else is needed

Some problems need a builder, plumber or other trade rather than us:

  • Decayed frames that need repair
  • Putty and glazing repairs
  • Sash cords, weights and draught-proofing of the sashes

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

Where we work in Hedgerley

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

DIY versus a professional finish

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.

What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions.

For landlords and businesses

A neglected joint can let water reach the structure, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.

Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.

Different surfaces, different methods

Tenement and terrace windows

Where a building is shared, window work may involve neighbours, so check who is responsible first.

Sash and case windows

The box of a sash and case window sits in the stone or brick opening. Sand mastic seals the joint round it.

Frames and glazing around Hedgerley

Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Cliveden (about 3.8 miles west) are a reminder that the area around Hedgerley has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.

In the older streets around Parish Church of St Mary the Virgin, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Managing a site like Farnham Common Junior School? Then its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Gerrards Cross station change hands often, and any sash windows need sound mastic to keep draughts and rain out.

Hedgerley is about 3 miles south-east of Beaconsfield, in Slough. From the centre of Hedgerley to the outskirts, sand mastic is available for homes and businesses alike. Our Slough coverage runs to 31 places, Hedgerley among them. We also work in Reading, about 18 miles from Hedgerley.

Postcode districts we cover here for sand mastic: SL2. If you need sand mastic at a property on Jones Way, Hedgerley Hill and Cottage Park Road or anywhere close by, we can help. Other places close to Hedgerley include Egypt (1 mile south-west), Farnham Common (1 mile south-west), East Burnham (2 miles south-west), Littleworth Corner (2 miles west) and Farnham Royal (2 miles south). Larger places within reach include Slough (4 miles south), Cippenham (4 miles south), Chalvey (5 miles south), Langley (5 miles south-east), Upton (5 miles south) and Burnham (4 miles south-west).

Local landmarks in Hedgerley

We work in homes and buildings around Bulstrode Park, The White Horse Public House and Khalsa Secondary Academy and the streets around them. The closest station to Hedgerley is Gerrards Cross station, roughly 2.3 miles north-east. Nearby you will also find Wexham Park Hospital (3 miles south-east). Green spaces nearby include Church Wood and Pynesfield Lake.

Map of Hedgerley © OpenStreetMap contributors

Looking after it afterwards

Joint life depends on how it’s used and looked after. Here’s what we suggest:

  • Avoid patching sand mastic with silicone
  • Keep sills and gutters clear so water drains away
  • Find out about consent before window work on a listed home
  • Take care around the mastic when scraping paint

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

An open joint round the box lets weather through. The longer it’s left, the more the joint opens.

Why deal with it now?

New sash windows are a major, costly change, and in listed buildings it may need consent. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. Around Hedgerley, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.

Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.

Why book with us

  • Trusted Arbo and Everbuild sealants
  • Rated 4.9 stars on Google
  • Every job guaranteed for a year
  • We’re fully insured

Take a look at how sealant jobs are priced or what customers say.

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