Essex · England
Sand mastic for sash & case windows in Wissington, Essex
Window and door surrounds in Wissington need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Gaps between timber frames and stone or brick
- Window mastic to renew ahead of painting
- Old sand mastic that has cracked, crumbled or fallen out
Surface by surface
Sash and case windows
A sash window’s box frame sits in the masonry opening. The gap round it is pointed with sand mastic.
Stone surrounds
The stone is treated with care when the old mastic comes out.
About our sand mastic in Wissington
Sand mastic skins over fairly quickly, but it takes longer to harden fully. Traditionally, sand mastic is left unpainted and we will advise if you are redecorating. We work on tenement windows, timber door frames and stone surrounds, and common reasons people get in touch are mastic round period door frames that has failed and failed mastic on an exposed elevation.
In a village or hamlet like Wissington, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
Each job carries a 12-month guarantee.

- Where
- Wissington (CO6)
- Wider area
- Essex
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What happens on the day
Good joint work is mostly preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. In total, it normally takes anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Wissington, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We check the window surrounds and agree which joints need renewing.
- The loose and crumbling mastic is raked out and the joint cleaned.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Let us know about stairs, lifts or work at height
- For indoor joints, keep the area dry beforehand if you can
Getting a quote
Every job is quoted individually, so start by telling us what you need. Simply ring 0345 464 0079 or email us and describe the job and send pictures if you have them.
Read more
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Go gently near the mastic when preparing windows
- Renew mastic before redecorating the windows
- Ask the planning authority about consent for listed or conservation-area homes
- Don’t paint over the new mastic
Don’t touch or press the mastic while it hardens. It skins over quickly but needs longer to fully harden.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber, which can lead to rot.
What affects the quote in Wissington
The price is agreed before any work begins. It’s based on:
- The size of the job
- Whether the work is at height
- How many rooms, windows or areas are involved
- The old material and how stubborn it is
Doing several joints on one visit generally makes better use of the time than several visits. You will get one clear quote for the whole job.
What we need to know
When you contact us, it’s useful to know:
- Any previous sealing or DIY work
- Photos by email, if that’s easy
- How many joints, rooms or windows are involved
- Whether it’s a home or a business
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll talk you through the work before giving you a price.
Wissington questions
Is Wissington within the area you cover?
Yes, Wissington is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Bures station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before any work starts.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
What is sand mastic?
It’s the traditional filler for the joint round timber windows and doors. It combines sand with a linseed-oil-based binder.
Is it messy?
No. We protect the surfaces around the joints, and we clear up the old sealant and our materials before we leave.
Will there be a smell?
Some sealants have a smell while they cure. Ventilation helps.
Do you have insurance?
Yes, we’re fully insured for domestic and commercial work.
Where is Mr Mastic based?
Our base is Crawley, with over 20 years’ experience. We work across South East England, London and Scotland.
Signs you need sand mastic in Wissington
Some old mastic was never deep enough. Mastic that’s too thin cracks and drops out, which is why we pack deep voids first and get the depth right.
If you can see any of these, it’s time to have the joints looked at:
- Mastic that needs renewing before redecorating
- Gaps between timber frames and stone or brick
- Mastic worn away on windows facing the weather
- Crumbling sand mastic round a window
If you live in an older home near Church of St Mary Wiston, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What to look for in a quote
- Is VAT in the price?
- Whether you can choose the colour
- What the cure time is
- Whether they seal over old material or remove it
Towns and villages near Wissington
Also in Wissington
Wissington homes and the weather
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For site and facilities teams at buildings such as Nayland Primary School, the mastic around its windows and doors needs looking after like any other building’s. Letting a property close to Bures station? Then cracked sand mastic around sash windows lets in the draughts tenants complain about.
Wissington is about 6 miles north of Colchester, in Essex. Whether you are in the middle of Wissington or further out, sand mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Our area takes in 644 places across Essex, from the larger towns to small villages. We also work in Chelmsford, about 22 miles from Wissington.
All of CO6 is covered for sand mastic, from the main roads to the quietest streets. We also cover Nayland (1 mile east), Little Horkesley (1 mile south), Cock Street (2 miles north), Leavenheath (2 miles north) and Wormingford (2 miles south-west). Larger places within reach include Colchester (6 miles south), Braintree (14 miles south-west), Witham (15 miles south-west), Camulodunum (6 miles south), Halstead (9 miles west) and Greenstead (7 miles south-east).
Landmarks near Wissington
Locally, jobs take us to homes and businesses close to Star And Garter Public House, among other places. The closest station to Wissington is Bures station, about 3.3 miles west. Well-known places in the area include Severalls Hospital (4 miles south-east) and Mount Bures (3.3 miles west). Open spaces near Wissington include Arger Fen.
What happens if it’s left?
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic is the traditional material and finishes neatly against the masonry. Older cottages and farmhouses around Wissington can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
A few things move the cost up or down: how much old sealant there is and how stubborn it is, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
What you get with us
- Homes, businesses and hotels
- One-year guarantee on every job
- Tidy, careful work
- More than 20 years in sealant work
Read our cost guide and customer reviews.
For landlords and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we will quote.
