Essex · England
Sand Mastic in Roundbush Green
Window and door surrounds in Roundbush Green need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Mastic round period door frames that has failed
- Mastic worn away on windows facing the weather
- Old sand mastic that has cracked, crumbled or fallen out
Sand mastic in Roundbush Green, done properly
Old sand mastic cracks, crumbles and falls out over time and gaps open up round the frame. We rake it out and renew it so the surround looks right again. We work on period & listed homes, stone surrounds and sash and case windows, and the jobs we see most are tired mastic found when preparing windows for paint and old cement repairs round a window that have failed.
Mastic can only go onto a dry, clean joint, so window work in Roundbush Green is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
A one-year guarantee comes as standard.
- Where
- Roundbush Green (CM6)
- Wider area
- Essex
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we are called out for in Roundbush Green
Shallow joints are a common cause. A thin layer doesn’t hold well so we make sure the new mastic is the right thickness.
The most common problems we see are:
- Patchy fillers round a sash window
- Mastic round period door frames that has failed
- Silicone on a period window that looks wrong
- Draughty sash windows at the surround
Managing a site like Rodings Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
What your quote should include
- What guarantee comes with the work
- Whether they’re fully insured
- When the joint can take water or movement
- Whether all the old sealant comes out first
Different surfaces, different methods
Stone surrounds
Old stone surrounds are often uneven, so the gap isn’t the same all the way round. Sand mastic is shaped by hand to suit.
Sash and case windows
Sash windows are where we do most sand mastic work. We renew the mastic round each box.
The process
The work is kept neat and contained to the area we are working on, so you can get on with your day. The job generally takes anything from a few hours to a full day, depending on how many windows. In a small place like Roundbush Green, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- We dress the finish so it sits neatly against the masonry.
Getting ready for the visit
- Tell us if parking is tricky
- Mention any leaks or damp you’ve noticed
- Let us know about earlier repairs to the joints
Getting a quote
Want a quote for sand mastic? Please ring 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and give you a clear price before any work starts.
Advice
What sand mastic looks like in Roundbush Green
With historic houses such as Barrington Hall (about 3.1 miles north-west) nearby, there’s older building stock in the area around Roundbush Green as well as newer homes. Where a home is older, 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For an older house near a landmark such as Parish Church of St Mary, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Roundbush Green is about 8 miles south-east of Bishop's Stortford, in Essex. If you need sand mastic in Roundbush Green, it’s easy to get a quote: please phone 0345 464 0079 or email us. We cover Essex from our Crawley base. Roundbush Green is one of 644 towns and villages in Essex we cover. You can also see our page for Chelmsford, about 9 miles away.
Every address in CM6 is covered for sand mastic. Sand mastic is available to properties on Dunmow Road and Drury Lane. We also cover the places around Roundbush Green: Keeres Green (1 mile south), Great Canfield (2 miles north), High Roding (2 miles north-east), High Easter (2 miles east) and Stagden Cross (3 miles east). Within a short drive, we also cover Chelmsford (9 miles south-east), Braintree (12 miles north-east), Harlow (9 miles west), Brentwood (13 miles south), Billericay (14 miles south) and Witham (14 miles east).
What’s near Roundbush Green
We work in homes and buildings around Axe And Compasses Public House. Other landmarks nearby include Willingale Doe (4.2 miles south). Open spaces near Roundbush Green include Portingbury Hills.
Honest limits
In fairness, some problems need a different trade:
- Cracked or broken glass
- Sashes that need overhauling
- Decayed frames that need repair
Not sure which it is? You can call 0345 464 0079 or drop us an email and we will tell you honestly.
Surfaces we seal
- Tenement windows
- Period & listed homes
- Sash and case windows
- Stone surrounds
- Timber door frames
- Brick reveals
Aftercare tips
A little care helps the new joints last. Our advice:
- Check the mastic when you check the paintwork
- Don’t paint over the new mastic
- Ask the planning authority about consent for listed or conservation-area homes
- Keep sills and gutters clear so water drains away
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
Places near Roundbush Green
More services for Roundbush Green
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
FAQs for Roundbush Green
Is Roundbush Green within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Is there a guarantee on sand mastic in Roundbush Green?
Every job comes with our 12-month guarantee, wherever it is. We’re also fully insured and ARBOMaster approved.
Where are you based?
We’re a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Which is right for my windows, sand mastic or modern sealant?
That depends on your windows. Period windows in stone or brick generally suit sand mastic and newer frames usually get a flexible sealant.
What does sand mastic cost?
Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or drop us an email with a short description of the job.
Are you ARBOMaster approved?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Can tenants book the work?
We can work for tenants, landlords or agents. Get your landlord’s agreement first.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages.
Why deal with it now?
Draughts round a sash window are not always the sashes. Open mastic joints round the box can let air in and new mastic seals them. Older cottages and farmhouses around Roundbush Green can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
What you get with us
- Quality sealants from Arbo and Everbuild
- We’re fully insured
- We leave the area clean and tidy
- Homes, businesses and hotels