Essex · England
Sand mastic for sash & case windows in Gallows Green, Essex
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Gallows Green, with a one-year guarantee on every job. Call for a quick quote.
- Gaps between timber frames and stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
- Patchy fillers round a sash window
What we’re called out for in Gallows Green
Paint, silicone or cement used over old mastic causes problems. They don’t move with the timber, and they usually need raking out.
If you can see any of these, it’s time to have the joints looked at:
- Open joints round the window box
- A silicone bead on a sash window that spoils the look
- Wind and rain getting in round a sash window
- Gaps round a timber door in stone or brick
In the older streets around Church of St Margaret and St Catherine, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
What your quote should include
- Which sealant they’ll use, and why
- What guarantee comes with the work
- Whether all the old sealant comes out first
- Whether they’re fully insured
Sand mastic for homes and businesses in Gallows Green
On many period windows, sand mastic looks right and suits the building. On modern frames we’d normally use a flexible sealant, and we’ll talk through which suits your home. Common call-outs are for mastic that needs renewing before redecorating and mastic dropping out of the joint, on tenement windows, brick reveals and timber door frames.
Homes in small places like Gallows Green often stand in the open, with little to shelter their windows from wind and rain. Exposed frames and sills lose their mastic sooner than sheltered ones.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Where
- Gallows Green (CO6)
- Region
- Essex
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Questions from Gallows Green
Is Gallows Green within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Marks Tey station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints.
Can sand mastic be painted?
Traditional guidance is not to paint over sand mastic. If you’re redecorating the window, ask us first and we will talk you through it.
Can you quote for more than one area?
Yes. Just list everything you need and we’ll quote it together.
Is there any odour?
Some sealants have a smell while they cure. Ventilation helps.
Is the work guaranteed?
All our work has a one-year guarantee, and we are fully insured.
Why act early in Gallows Green
Not every filler suits an old window surround. Sand mastic matches what was there and that can be important for listed homes. In a small place like Gallows Green, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why Gallows Green clients choose us
- We never seal over old sealant
- Tidy, careful work
- More than 20 years in sealant work
- Anti-fungal silicone where joints get wet
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Putty and glazing repairs
- Damaged stone surrounds
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before you book.
Surfaces we seal
- Stone surrounds
- Timber door frames
- Period & listed homes
- Sash and case windows
- Brick reveals
- Tenement windows
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Look over the window mastic once a year
- Find out about consent before window work on a listed home
- Go gently near the mastic when preparing windows
- Ask a joiner to look at soft timber first
When preparing windows for paint, take care around the mastic. Hard scraping can loosen it.
Fine cracks show the mastic is starting to fail. Renewing it then is simpler than waiting until it falls out.
Sand mastic in Gallows Green: local notes
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Managing a site like Holy Trinity CofE Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages. For landlords with property near Marks Tey station, older sash windows in a rental need their mastic kept sound to keep the weather out.
Gallows Green is about 4 miles west of Colchester, in Essex. Anywhere in CO6, we cover sand mastic for homes and businesses. Gallows Green is one of 644 towns and villages in Essex where we work. Our Chelmsford page covers work nearby (18 miles or so).
Jobs for sand mastic in CO6 works the same way as everywhere else we cover. Whether your property is on Foxes Lane and Halstead Road or a nearby road, our applicators can take on the job. If you are just outside Gallows Green, we cover Fordham Heath (1 mile east), Fordham (1 mile north), West Bergholt (2 miles east), Wormingford (3 miles north) and Great Horkesley (4 miles north-east). Larger places within reach include Colchester (4 miles east), Braintree (10 miles west), Maldon (13 miles south-west), Witham (10 miles south-west), Camulodunum (3 miles south-east) and Halstead (7 miles west).
Landmarks near Gallows Green
Locally, jobs take us to homes and businesses close to The Stanway School and The Queen's Head Public House and the streets around them. Gallows Green’s nearest station is Marks Tey station, about 1.7 miles south-west. Other landmarks nearby include Birch Castle (4.1 miles south) and Essex County Hospital (3.9 miles east). Open spaces near Gallows Green include Iron Latch.
Surface by surface
Stone surrounds
Stone surrounds suit sand mastic well. It finishes to look like part of the surround.
Tenement and terrace windows
In shared buildings, the windows may be part of a wider repair, so check who is responsible first.
Also near Gallows Green
Also in Gallows Green
What happens on the day
On the day, we look over the joints with you first. We protect the surfaces around the joints before any work begins. The work usually takes a few hours for a single window, longer for several. In a small place like Gallows Green, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check the window surrounds and agree which joints need renewing.
- Old, loose mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- The mastic is mixed, pressed into the joint by hand and shaped.
- The mastic is finished to sit tidily against the stone or brick.
How to prepare
- Mention any sign-in or site rules at work premises
- Mention any tricky access
- Mention if the joints have been sealed before
Get a quote
We do not publish a price list. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or email us.
Read more
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.