West Berkshire · England

Sand mastic for sash & case windows in Ryeish Green, West Berkshire

Sand mastic across Ryeish Green and nearby, with old sealant always removed completely.

  • Cement or filler used on old window joints that has cracked
  • Open joints round the window box
  • Draughts and rain around sash boxes

Sand mastic for Ryeish Green homes and businesses

Landlords, agents and businesses in Ryeish Green

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.

Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.

How we handle sand mastic in Ryeish Green

Sand mastic has long been used to fill the joint between timber frames and masonry. It’s made from sand and a linseed-oil-based binder, applied by hand. On period homes, it looks right where silicone wouldn’t. Typical jobs include mastic that needs renewing before redecorating and gaps where the frame meets the masonry, across sash and case windows, stone surrounds and brick reveals.

Outdoor sealant needs dry, clean surfaces, so work on frames around Ryeish Green is planned for dry weather. Let us know about access to all the frames, upstairs ones included.

The work is covered for a year after we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.

Applicator reaching up to seal an external door frame on a sunny day
Where
Ryeish Green (RG7)
Region
West Berkshire
Guarantee
One year on every job
Price
Quoted before any work starts
Phone
0345 464 0079
Updated
26 October 2026

What the job involves on each surface

Sash and case windows

Most of our sand mastic work is on sash windows. We renew the mastic round each box.

Tenement and terrace windows

Tenements and terraces often have many sash windows with ageing mastic. We work on single windows or whole elevations.

Leave it or put it right?

Filling over old, loose mastic does not last. Raking out and preparing the joint gives it a sound base so the new mastic stays put. In a small place like Ryeish Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.

The cost depends on how much there is to do, how much old material has to come out and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.

Why Ryeish Green clients choose us

  • Old sealant always removed completely
  • 180+ five-star Google reviews
  • Full insurance on every job
  • Homes, businesses and hotels

Read how sealant jobs are priced and customer reviews.

What we do, step by step

We keep the work tidy and contained to the joints we are treating. Expect the work to take anything from a few hours to a full day, depending on how many windows, and we tell you how long to leave it before we go. Somewhere like Ryeish Green needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.

  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. We apply the mastic by hand and shape it.
  5. We dress the finish so it sits neatly against the masonry.

How to prepare

  • For business premises, tell us about site rules or sign-in
  • Clear the area around the work
  • Let us know about stairs, lifts or work at height

Getting a quote

It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. Whenever you are ready, call 0345 464 0079 or email us.

Get a price

Read more

Should I try it myself first?

Not every job suits DIY: 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 thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.

What affects the cost of sand mastic

Every job gets its own quote. This is what makes a difference:

  • Whether old sealant or filler has to be cut out
  • Working hours on commercial sites
  • The type of sealant required
  • Whether the work is at height

There are no prices on our website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or send us an email and we will talk you through it.

Asking for a quote

To make quoting easier, please include:

  • Whether it’s a home or a business
  • How we’d reach the joints
  • How many joints, rooms or windows are involved
  • Pictures of the joints, sent by email

For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll explain what’s involved before giving you a price.

Do you need sand mastic in Ryeish Green?

Sand mastic slowly weathers. It hardens, cracks and starts to come away from the frame or the masonry.

People normally contact us after spotting something like this:

  • Crumbling sand mastic round a window
  • Cement or filler used on old window joints that has cracked
  • Mastic worn away on windows facing the weather
  • A silicone bead on a sash window that spoils the look

Letting a property close to Reading Green Park station? Then any sash windows need sound mastic to keep draughts and rain out.

Comparing quotes

  • How long to leave it before use
  • How much experience the applicator has
  • The length of the guarantee
  • Which colour the sealant will be

Choosing a sealant specialist

Frames and glazing around Ryeish Green

Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Stratfield Saye House (about 4 miles south) are a reminder that the area around Ryeish Green has older buildings as well as new. 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 St Michael and All Angels, frames set in older brick or stone need a sealant that suits the wall as well as the frame.

Ryeish Green is about 3 miles south of Reading, in West Berkshire. From the centre of Ryeish Green to the outskirts, we cover sand mastic for every kind of property, from flats and houses to offices and hotels. Our area takes in 155 places across West Berkshire, from the larger towns to small villages.

We work across RG7 for sand mastic and the streets around it. Nearby, we also carry out sand mastic in Three Mile Cross (1 mile north-west), Shinfield (1 mile north-east), Great Lea Common (1 mile north-west), Whitley Wood (1 mile north) and Whitley (2 miles north). Within a short drive, we also cover Thatcham (13 miles west), Burghfield Common (4 miles west), Calcot (5 miles north-west), Shaw (15 miles west), Burghfield Hill (4 miles west) and Theale (6 miles north-west).

What’s near Ryeish Green

Locally, jobs take us to homes and businesses close to Pearman's Copse, Shinfield Infant and Nursery School and Ryeish Green School and the streets around them. For rail, the closest station is Reading Green Park station, about 2.4 miles north-west. Other landmarks nearby include The Oracle (3.5 miles north) and Royal Berkshire Hospital (3.3 miles north). For a walk, there’s Longwater and Fobney Island Wetland Reserve.

Map of Ryeish Green © OpenStreetMap contributors

Common questions in Ryeish Green

Can you do sand mastic in Ryeish Green?

Yes. We work across London and the South East, and Ryeish Green is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.

I let a flat near Reading Green Park station. Can you help?

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

Do you remove the old sealant?

Always. Sealing over old sealant is the main reason resealing fails early, and it’s something we never do.

What do you need from me for a quote?

The location, the problem and the rough size of the job. Photos by email help too.

Is it worth trying it myself?

That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.

Will it make a mess?

Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we are done.

Can I choose the sealant colour?

We’ll suggest a colour to suit the surroundings, from white and clear to greys and other shades. The product needed can limit the range.

Can you work on commercial sites?

Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.

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