West Sussex · England
Sand mastic for sash & case windows in East Wittering, West Sussex
Specialist sand mastic for East Wittering: careful preparation, the right product and tidy work. Call for a quick quote.
- Open joints round the window box
- Old cement repairs round a window that have failed
- Silicone on a period window that looks wrong
About our sand mastic in East Wittering
Across East Wittering, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand for a neat, traditional finish. We work on timber door frames, tenement windows and brick reveals, and the jobs we see most are draughts and rain around sash boxes and failed mastic on an exposed elevation.
In smaller places like East Wittering, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
Whatever the size of the job, you get the same one-year guarantee in East Wittering and across West Sussex.
- Location
- East Wittering (PO20)
- Region
- West Sussex
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
How the visit works
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes anything from a few hours to a full day, depending on how many windows, depending on how much there is to do. For a job in East Wittering, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We check each window surround and the condition of the joint.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- The finish is dressed neatly.
Preparing for the visit
- Keep children and pets away from the work area
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any previous sealing or DIY attempts
How to get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved.
Read more
Surface by surface
Timber door frames
Sand mastic is used round timber door frames too. The method is the same as for windows.
Stone surrounds
The stone is treated with care when the old mastic comes out.
Frames and glazing around East Wittering
East Wittering is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around older windows and doors, especially on the side facing the sea. 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.
Schools such as East Wittering Community Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
East Wittering is about 6 miles south-west of Chichester, in West Sussex. Every kind of property in East Wittering can book us for sand mastic, old or new, large or small. Every job comes with our 12-month guarantee. Our West Sussex coverage runs to 371 places, East Wittering among them. For nearby work, see our Portsmouth page, about 10 miles away.
Jobs for sand mastic in PO20 is quoted and booked the same way as anywhere else. Streets in the area include Church Road, Downview Close and Stocks Lane, and we cover them all. Main roads around East Wittering include the B2179, which makes travel easy. We also cover Earnley (1 mile east), Somerley (2 miles north-east), West Wittering (2 miles north-west), Shipton Green (2 miles north) and Almodington (2 miles north-east). Further out, we also cover Bognor Regis (8 miles east), Chichester (6 miles north-east), Selsey (4 miles south-east), Littlehampton (15 miles east), Emsworth (7 miles north-west) and Portfield (7 miles north-east).
Around East Wittering
In East Wittering, that means homes and buildings near The Thatched Tavern and the streets around them. Not far away are Pilsey Island.
Nearby places to East Wittering
Also in East Wittering
Why deal with it now?
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic suits the building and blends with the stone or brick. In an older home around East Wittering, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote.
Why us?
- Fully insured
- Every job guaranteed for a year
- Neat joints and a tidy finish
- Approved under the ARBOMaster scheme
When to call us in East Wittering
Over the years, sand mastic weathers. It dries out, cracks and loses its grip on the stone or timber.
Common reasons people contact us include:
- Mastic that needs renewing before redecorating
- Mastic worn away on windows facing the weather
- Cement or filler used on old window joints that has cracked
- Mastic dropping out of the joint
In the older streets around St Anne, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Questions to ask before booking
- What the cure time is
- Whether you can choose the colour
- Whether they’re fully insured
- How the joint is cleaned and prepared
East Wittering questions
Do you cover smaller places like East Wittering?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Does the coastal weather in East Wittering affect outside sealant?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Is there any odour?
It depends on the product. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Are you fully insured?
Yes. We are fully insured, and we have been doing sealant work for more than 20 years.
Should I check with the council before work on a listed or conservation-area home?
Speak to your local planning authority before work starts. Like-for-like sand mastic is often the preferred finish but the decision is theirs.
How long does sand mastic take?
As a guide, most jobs take a few hours for a single window, longer for several. Larger jobs naturally take longer, and we’ll tell you how long to expect.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Sort the mastic before the decorators arrive
- Get any rot dealt with first
- Keep modern sealant off the mastic
- Check the mastic when you check the paintwork
Leave the new mastic unpainted, as traditional guidance advises. Ask us before any decorating around it.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
Honest limits
We’d rather tell you now than do work that will not last, so these are the limits:
- Crumbling stone or brickwork round the window
- Sash cords, weights and draught-proofing of the sashes
- Putty and glazing repairs
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Where we work in East Wittering
- Stone surrounds
- Brick reveals
- Period & listed homes
- Sash and case windows
- Timber door frames
- Tenement windows