West Berkshire · England

Sand Mastic in Frilsham

Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Frilsham, with a 12-month guarantee on every job. Call for a quick quote.

  • Modern sealant on a period surround
  • Window mastic to renew ahead of painting
  • Old cement repairs round a window that have failed

Sand mastic in Frilsham

Sand mastic in Frilsham, done properly

Fresh sand mastic forms a skin quite soon, but it takes longer to harden fully. Traditional guidance is not to paint over it, so ask us before you decorate. If you’re dealing with patchy fillers round a sash window and mastic that needs renewing before redecorating, we can put it right, on stone surrounds, brick reveals and timber door frames alike.

Around Frilsham, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.

Our work is backed for twelve months, and the guarantee is the same wherever you are.

Applicator reaching up to seal an external door frame on a sunny day
Where
Frilsham (RG18)
Wider area
West Berkshire
Cover
One year on every job
Quotes
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026

Keeping the joints in good condition

Aftercare is simple, and it makes a real difference:

  • Ask us before painting near the mastic
  • Get any rot dealt with first
  • Keep sills and gutters clear so water drains away
  • Avoid patching sand mastic with silicone

Avoid painting over the new mastic, which is the traditional advice. If you are redecorating, ask us first.

Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.

Sand mastic in Frilsham: local notes

London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.

For site and facilities teams at buildings such as Yattendon C.E. Primary School, larger buildings have plenty of frames, and the mastic around each one ages. If you let a flat or house near Midgham station, cracked sand mastic around sash windows lets in the draughts tenants complain about.

Frilsham is about 4 miles north-east of Thatcham, in West Berkshire. We carry out sand mastic for homeowners, landlords and businesses in Frilsham and the surrounding area, as part of our work across West Berkshire. We cover 155 towns and villages across West Berkshire, large and small. Reading is on our list too, about 10 miles from Frilsham.

We work across RG18 for sand mastic and the streets around it. We cover properties on Beechfield Lane, Hatchets Lane and Chapel Lane. We also cover the places around Frilsham: Yattendon (1 mile north-east), Wellhouse (2 miles west), Little Hungerford (2 miles west), Hampstead Norreys (2 miles north-west) and Oare (2 miles west). Within a short drive, we also cover Newbury (6 miles south-west), Thatcham (4 miles south-west), Burghfield Common (8 miles south-east), Speenhamland (6 miles south-west), Hungerford (13 miles west) and Spencers Wood (11 miles east).

Near you in Frilsham

We work in homes and buildings around The Pot Kiln pub. The closest station to Frilsham is Midgham station, roughly 4.3 miles south. Well-known places in the area include West Berkshire Community Hospital (4.7 miles south-west) and Yattendon Castle (1 mile north). Open spaces near Frilsham include Nature Discovery Centre.

Map of Frilsham © OpenStreetMap contributors

Can I do it myself?

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.

Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.

What sealant work can’t fix

We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:

  • Planning or listed building consent (your local planning authority decides)
  • Crumbling stone or brickwork round the window
  • Decayed frames that need repair

If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.

What we seal

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

What affects the quote in Frilsham

We quote each job individually. These are the things that affect it:

  • When we can work, for business premises
  • The type of sealant required
  • Any mould that needs treating
  • Whether old sealant or filler has to be cut out

Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.

What we need to know

You don’t need to know the technical terms. Just tell us:

  • How many joints, rooms or windows are involved
  • Access, such as stairs, a lift or height
  • Where the job is, and your postcode
  • Whether it has been sealed before

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

FAQs for Frilsham

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

Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. You can call 0345 464 0079 or email us with the details for a clear quote.

Can you do sand mastic in Frilsham?

Yes, Frilsham is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.

Do you guarantee sand mastic work?

There’s a 12-month guarantee on every job.

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 modern sealants suit newer frames.

Are you an approved applicator?

Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.

What does sand mastic cost?

The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we’ll talk you through it.

Do you offer different sealant colours?

Most of the time, yes. We will tell you which colours the right product comes in.

Will the old sealant be removed?

Yes, every time. New sealant will not bond properly to old, so the joint is cleaned back first.

Signs you need sand mastic in Frilsham

Shallow joints are a common cause. A thin layer doesn’t hold well, which is why we pack deep voids first and get the depth right.

Look out for these signs:

  • Old sand mastic that has cracked, crumbled or fallen out
  • Mastic worn away on windows facing the weather
  • Cement or filler used on old window joints that has cracked
  • Window mastic to renew ahead of painting

For an older house near a landmark such as Church of St Frideswide, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

Questions to ask before you book

  • How the colour is chosen
  • Is the old sealant removed completely?
  • What preparation is included
  • What the cure time is

How to choose a mastic man

Landlord and commercial work in Frilsham

Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured.

For anyone letting property in or around Frilsham, several properties can be quoted together. Send us the addresses and the work at each.

What happens on the day

We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours per window, depending on the condition of the joints, and the area is left clean. Somewhere as small as Frilsham, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.

  1. We check each window surround and the condition of the joint.
  2. The joint is raked out and cleaned.
  3. Large voids are packed out.
  4. New sand mastic is applied and shaped by hand.
  5. The finish is dressed neatly.

Getting ready for the visit

  • Mention any tricky access
  • Let us know if you’ve seen damp or leaks
  • Let us know about earlier repairs to the joints

How to get a quote

For sand mastic in Frilsham, phone 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.

Ask for a quote

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