Essex · England
Sand mastic for sash & case windows in Wickham Bishops, Essex
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homes and businesses in Wickham Bishops and across Essex. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Wind and rain getting in round a sash window
- Old cement repairs round a window that have failed
- Crumbling sand mastic round a window
Sand mastic in Wickham Bishops
Sand mastic has long been used to fill the joint between timber frames and masonry. It’s a mix of sand and a linseed-oil-based binder, applied by hand. On older homes, it suits the building far better than silicone. If you’re dealing with failed mastic on an exposed elevation and modern sealant on a period surround, we can help, whatever the surface.
Mastic can only go onto a dry, clean joint, so window work in Wickham Bishops is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
Our work is backed for twelve months, in Wickham Bishops and everywhere else we cover.
- Location
- Wickham Bishops (CM8)
- Region
- Essex
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
Most of a good job is in the preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it usually takes anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Wickham Bishops, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- 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.
- We point the joint with sand mastic by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Tell us if parking is tricky
- Plan for the work area to be out of bounds to pets and children
- Let us know about earlier repairs to the joints
Get a quote
Every job is quoted individually. Just ring 0345 464 0079 or send us an email with the details and send photos if you have them.
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Should I try it myself first?
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Do you need sand mastic in Wickham Bishops?
Previous repairs in cement or silicone often trap water or crack away. They do not suit the joint and we normally remove them.
Keep an eye out for any of the following:
- Weathered mastic on the most exposed windows
- Draughts and rain around sash boxes
- Window mastic to renew ahead of painting
- Gaps where the frame meets the masonry
If you look after a building such as Great Totham Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- Is VAT in the price?
- Whether they seal over old material or remove it
- What happens if they find a problem under the old sealant
- What insurance they hold
Surface by surface
Stone surrounds
Stone surrounds suit sand mastic well. It finishes to look like part of the surround.
Period and listed homes
On a listed home or in a conservation area, the right material matters. Sand mastic is often the preferred finish.
Places near Wickham Bishops
Also in Wickham Bishops
When it isn’t the sealant
New sealant cannot fix everything, and we’d rather say so up front. Sealant will not put right:
- Decayed frames that need repair
- Decisions on consent for listed homes
- Sashes that rattle, stick or will not open
If you are not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer.
What we seal
- Brick reveals
- Stone surrounds
- Sash and case windows
- Period & listed homes
- Tenement windows
- Timber door frames
What sand mastic looks like in Wickham Bishops
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.
If you let a flat or house near Witham station, older sash windows in a rental need their mastic kept sound to keep the weather out. Homes close to Church of St Bartholomew include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Wickham Bishops is about 2 miles south-east of Witham, in Essex. Homes, rented property, offices and hotels in Wickham Bishops is covered for sand mastic. The work is guaranteed for a year. Our Essex coverage runs to 644 places, and Wickham Bishops is one of them. Chelmsford is on our list too, about 8 miles from Wickham Bishops.
We cover every part of CM8 for sand mastic. Local streets include The Street, Church Road and Station Road, and we cover them all. Close by, we work in Beacon Hill (1 mile north-east), Great Totham (1 mile south-east), Great Braxted (2 miles north-east), Broad Street Green (2 miles south-east) and Langford (2 miles south). Further out, we also cover Colchester (12 miles north-east), Chelmsford (8 miles west), Braintree (9 miles north-west), Maldon (4 miles south), Billericay (15 miles south-west) and Rayleigh (13 miles south).
Landmarks near Wickham Bishops
In Wickham Bishops, that means homes and buildings near Maltings Academy, The Green Man pub and Whet Mead and the streets around them. For rail, the closest station is Witham station, about 2.3 miles north-west of the centre. Green spaces nearby include Shut Heath Wood.
What affects the quote in Wickham Bishops
We don’t publish a price list, because jobs vary so much. The quote depends on:
- Access and height
- The number of rooms or windows
- Whether there’s mould to deal with
- Which sealant suits the joint
What it costs depends on how much there is to do, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
Helping us quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- If someone has resealed it before
- Where the job is, and your postcode
- What the problem is, such as mould, gaps, leaks or cracking
- How many joints, rooms or windows are involved
For a quick quote, get us on the phone, or send an email if you’d rather. Describe what needs sealing and we’ll explain what’s involved and send you a clear quote.
Landlords, agents and businesses in Wickham Bishops
We work for landlords and letting agents as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll quote.
Questions from Wickham Bishops
Will you come out to Wickham Bishops?
Yes, Wickham Bishops is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
I let a flat near Witham station. Can you help?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just call 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear quote.
How long does sand mastic take to harden?
It takes a while. It skins first and hardens fully later and we will give you an idea for your job.
What exactly is sand mastic?
Sand plus a binder based on linseed oil. It’s built up in the joint by hand and shaped to suit the surround.
What sealant do you use?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice.
Can I do it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Should I check with the council before work on a listed or conservation-area home?
Your local planning authority is the one to ask. They’ll tell you if consent is needed for work to your windows.
Can I paint the new mastic?
The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we will talk you through it.