Essex · England
Sand Mastic in Great Bromley
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Great Bromley, with a one-year guarantee on every job. Call for a quick quote.
- Failed mastic on an exposed elevation
- Mastic round period door frames that has failed
- Mastic that needs renewing before redecorating
Sand mastic in Great Bromley
If your home is listed or in a conservation area, check with your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. We work on stone surrounds, tenement windows and brick reveals, and common reasons people get in touch are gaps between timber frames and stone or brick and mastic worn away on windows facing the weather.
In a village or hamlet like Great Bromley, older cottages and farmhouses often have timber windows set in stone or brick. Older buildings like these don’t always suit modern silicone, so the sealant has to be chosen to suit the building.
The work is covered for a year after we finish. If anything is not right with it, ring 0345 464 0079 or send us an email.
- Where
- Great Bromley (CO7)
- Wider area
- Essex
- Cover
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Questions from Great Bromley
Will you come out to Great Bromley?
Yes. Great Bromley is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Alresford station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
What guarantee comes with the work?
There’s a 12-month guarantee on every job, sand mastic included.
Is sand mastic better than silicone for my windows?
We will talk it through with you. Period homes often look best with sand mastic and newer frames suit modern sealant.
Where is Mr Mastic based?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Can you replace silicone on a period window with sand mastic?
Normally, yes. Once the silicone is out and the joint prepared we point it with sand mastic.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and you will get one quote.
Do you need sand mastic in Great Bromley?
Shallow joints are a common cause. A thin layer does not hold well so we make sure the new mastic is the right thickness.
Most people get in touch after spotting one of these:
- A silicone bead on a sash window that spoils the look
- Window mastic to renew ahead of painting
- Crumbling sand mastic round a window
- Cracked mastic round a front door frame
If you let a flat or house near Alresford station, any sash windows need sound mastic to keep draughts and rain out.
Comparing quotes
- How the joint is cleaned and prepared
- How the colour is chosen
- How long to leave it before use
- Whether VAT is included
When something else is needed
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- Broken panes
- Sashes that need overhauling
- Whether work needs listed building consent
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
What we seal
- Sash and case windows
- Timber door frames
- Tenement windows
- Stone surrounds
- Period & listed homes
- Brick reveals
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We remove it and do the joint properly, so just mention it when you contact us.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What we do, step by step
On the day, we start by going over the job with you. We protect the surfaces around the joints before any work begins. The work generally takes a few hours per window, depending on the condition of the joints. Somewhere as small as Great Bromley, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each surround is checked first.
- 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
- Mention any parking rules near the property
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
We don’t publish a price list, because every job is different. Instead, we give you a clear price for your job. To get started, phone 0345 464 0079 or send us an email.
Read more
Why it’s worth doing now in Great Bromley
New mastic over crumbling mastic won’t hold. Raking out and preparing the joint gives it a sound base so the new work lasts. In a small place like Great Bromley, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Why choose Mr Mastic in Great Bromley
- Sanitary silicone with an anti-fungal additive in wet areas
- We are fully insured
- ARBOMaster approved applicator
- 180+ five-star Google reviews
Take a look at our cost guide or what customers say.
How the job changes by surface
Sash and case windows
Most of our sand mastic work is on sash windows. Each joint round the box is raked out and renewed.
Timber door frames
Doors face weather and wear and the mastic can crack early. We rake it out and renew it.
Places near Great Bromley
Also in Great Bromley
Looking after it afterwards
So the new joints stay in good condition:
- Renew mastic before redecorating the windows
- Find out about consent before window work on a listed home
- Get any rot dealt with first
- Take care around the mastic when scraping paint
Leave the new mastic unpainted, as traditional guidance advises. If you are redecorating, ask us first.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
Sand mastic in Great Bromley: local notes
Historic houses like Castle House (about 4 miles north) are a reminder that the area around Great Bromley has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
For an older house near a landmark such as Church of St George, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as St George's Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Great Bromley is about 6 miles east of Colchester, in Essex. Across the CO7 area, our applicators can take on sand mastic. Great Bromley is one of 644 places in Essex where we work. There’s also a page for Chelmsford, about 26 miles away.
Work in CO7 works the same way as everywhere else we cover. That includes homes and businesses on Badley Hall Road, Brook Street and Hall Road and the roads around them. Other places close to Great Bromley include Cowey Green (1 mile south-east), Hare Green (1 mile south-east), Balls Green (1 mile south), Monkey Street (2 miles east) and Frating Green (2 miles south). Within a short drive, we also cover Colchester (6 miles west), Clacton-on-Sea (8 miles south-east), Harwich (10 miles east), Camulodunum (7 miles west), Greenstead (4 miles west) and Tiptree (13 miles south-west).
Near you in Great Bromley
We work in homes and buildings around Ardleigh Park, among other places. The closest station to Great Bromley is Alresford station, about 3.2 miles south-west. Nearby you’ll also find Colchester Hospital (5.6 miles west) and Wivenhoe Chapel Museum (3.6 miles south-west). For a walk, there’s Cockaynes Wood.