Hertfordshire · England
Braughing Sand Mastic
Sand mastic in Braughing from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Window mastic to renew ahead of painting
- Crumbling sand mastic round a window
- Mastic round period door frames that has failed
When to call us in Braughing
Scraping and sanding before painting can loosen old mastic. Many people find it crumbling when they prepare the windows.
These are the problems we are asked about most:
- A silicone bead on a sash window that spoils the look
- Old sand mastic that has cracked, crumbled or fallen out
- Window mastic to renew ahead of painting
- Gaps where the frame meets the masonry
Managing a site like Jenyns First School and Nursery? Then its window and door frames need their mastic kept sound, just like a home’s.
Comparing quotes
- What the quote includes, VAT included or not
- What insurance they hold
- What happens if they find a problem under the old sealant
- Who turns up on the day
Sand mastic in Braughing
For a listed home or one in a conservation area, ask your local planning authority if consent is needed before window work. Sand mastic is often favoured as a like-for-like material. We are often asked to deal with draughts and rain around sash boxes and gaps where the frame meets the masonry, on period & listed homes, stone surrounds and timber door frames.
Homes in small places like Braughing 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.
We guarantee the work for a year. If something isn’t right with it in that time, tell us and we’ll put it right.
- Where
- Braughing (SG11)
- Region
- Hertfordshire
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Frames and glazing around Braughing
Historic houses like Much Hadham Palace (about 4 miles south-east) are a reminder that the area around Braughing has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. 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.
In the older streets around Parish Church of St Mary the Virgin, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Braughing is about 6 miles north-west of Bishop's Stortford, in Hertfordshire. Jobs in Braughing get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Braughing is one of 381 towns and villages in Hertfordshire where we work for sand mastic. For nearby work, see our Chelmsford page (23 miles or so).
We work across SG11 for sand mastic and the streets around it. Streets in the area include The Street, Pentlows and Northfield, and we cover them all. If you’re just outside Braughing, we cover Hay Street (1 mile north-west), Westmill (2 miles north-west), Albury (2 miles east), Gravesend (3 miles east) and Furneux Pelham (3 miles north-east). We also work in nearby towns such as Stevenage (9 miles west), Bishop's Stortford (6 miles south-east), Welwyn Garden City (12 miles south-west), Hitchin (13 miles west), Hoddesdon (11 miles south) and Cheshunt (14 miles south).
Local landmarks in Braughing
We work in homes and buildings around The Axe And Compasses Public House and the streets around them. A little further out are Moated mound (3.7 miles east).
How it works
The work is kept neat and contained to the area we’re working on. Expect the work to take a few hours per window, depending on the condition of the joints. Somewhere as small as Braughing, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- We pack any deep voids first.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
How to prepare
- Clear items away from the joints we are working on
- Keep pets and children clear of the area while we work
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
To get a quote, phone 0345 464 0079 or drop us an email with the location and a short description of the problem. We’ll give you a clear price before any work starts.
Advice
Common questions in Braughing
Is Braughing within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you do sand mastic in Braughing?
Yes, Braughing is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll send you a clear quote.
What’s sand mastic made of?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
Will you leave a mess?
We keep the work tidy. Nearby surfaces are protected, and we clear up when we’re done.
Is it OK to seal over old sealant?
No. New silicone will not bond to old silicone, and anything trapped underneath, including mould and water, stays there. We remove it all first.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
Can tenants book the work?
We are happy to deal with the tenant, landlord or agent. Get your landlord’s agreement first.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages.
Places near Braughing
Other services in Braughing
Landlords, agents and businesses in Braughing
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll give you a quote.
Letting agents and landlords in Braughing can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Why deal with it now?
New mastic over crumbling mastic will not hold. Raking out and preparing the joint gives it a sound base so the new work lasts. Around Braughing, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Homes and businesses are quoted the same way: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we’ll explain what it covers.
What you get with us
- A 12-month guarantee on all work
- We leave the area clean and tidy
- An ARBOMaster approved applicator
- Old sealant always removed completely
Take a look at our cost guide or what customers say.
Surface by surface
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. We rake it out and renew it.
Brick reveals
An open joint at a brick reveal lets weather in. Renewing the mastic closes it.
How to look after the new joints
Looking after new joints is easy:
- Renew mastic before redecorating the windows
- Keep modern sealant off the mastic
- Check the mastic when you check the paintwork
- Find out about consent before window work on a listed home
Don’t touch or press the mastic while it hardens. It skins over quickly but needs longer to fully harden.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so just mention it when you contact us.