Thurrock · England
Biggin Sand Mastic
Our applicators work in Biggin on traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Modern sealant on a period surround
- Crumbling sand mastic round a window
- Window mastic to renew ahead of painting
What we cannot put right
It helps to know what we can’t do too:
- Crumbling stone or brickwork round the window
- Sashes that need overhauling
- Timber that has rotted
Not sure which it is? You can call 0345 464 0079 or email us and we’ll tell you honestly.
Surfaces we seal
- Tenement windows
- Timber door frames
- Stone surrounds
- Period & listed homes
- Sash and case windows
- Brick reveals
Sand mastic for homes and businesses in Biggin
Fresh sand mastic forms a skin quite soon but full hardening takes longer. Traditional guidance is not to paint over it and we’ll advise if you’re redecorating. If you’re dealing with draughty sash windows at the surround and patchy fillers round a sash window, we can put it right, whatever the surface.
Around Biggin, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
All our work is covered by a one-year guarantee, wherever you are in Thurrock.
- Where
- Biggin (RM16)
- Region
- Thurrock
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Aftercare tips
So the new joints stay in good condition:
- Do not paint over the new mastic
- Plan mastic work ahead of painting
- Ask a joiner to look at soft timber first
- Check with your local planning authority if your home is listed
Do not touch or press the mastic while it hardens. It forms a skin fairly soon but needs longer to fully harden.
Small cracks are a sign the mastic is ageing. It’s easier to renew it before it drops out.
What we do, step by step
A visit follows a simple pattern: we look at the joints together, protect the area around them, carry out the job and tidy away. It normally takes a few hours for a single window, longer for several. In a small place like Biggin, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Let us know about stairs, lifts or work at height
- Tell us if parking is tricky
How to get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email photos if that’s easy.
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Work for landlords, hotels and businesses
If you manage several properties in or around Biggin, several properties can go on one quote. Send us the addresses and the work at each, and photos by email help.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a one-year guarantee.
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and getting the depth right matters as much as the look.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Windows and doors in Biggin
Biggin is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around older windows and doors, especially on the side facing the sea. 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.
For site and facilities teams at buildings such as Tilbury Pioneer Academy, its window and door frames need their mastic kept sound, just like a home’s. If you live in an older home near Church of St Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Biggin is about 2 miles east of Grays, in Thurrock. Every kind of property in Biggin can book us for sand mastic. The work is guaranteed for a year. Biggin is one of 26 towns and villages in Thurrock where we work. There’s also a page for Chelmsford, roughly 19 miles from Biggin.
Work in RM16 is quoted and booked the same way as anywhere else. Neighbouring places we cover for sand mastic include West Tilbury (1 mile east), Chadwell St Mary (1 mile north), Tilbury (1 mile south-west), Orsett Heath (1 mile north-west) and Little Thurrock (2 miles north-west). We also work in nearby towns such as Stanford-le-Hope (4 miles north-east), South Ockendon (5 miles north-west), Balstonia (4 miles north-east), Corringham (5 miles north-east), Aveley (6 miles west) and South Stifford (3 miles west).
Landmarks near Biggin
Locally, jobs take us to homes and businesses close to Thurrock and Basildon College, The Kings Head pub and The Gateway Academy and the streets around them. For rail, the closest station is Tilbury Town station, about 1.2 miles south-west of the centre. Well-known places in the area include Gravesham Community Hospital (2.2 miles south) and Walton Hall Museum (2.1 miles north-east). The countryside around Biggin includes Thurrock Thameside Nature Park and Sawyers Lake.
Why it’s worth doing now in Biggin
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic suits the building and blends with the stone or brick. Where a wall is exposed, as many are in small places like Biggin, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
The cost depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before we start.
Why us?
- Rated 4.9 stars on Google
- Neat joints and a tidy finish
- Full insurance on every job
- An ARBOMaster approved applicator
Do you need sand mastic in Biggin?
Timber swells and shrinks with the weather. The movement cracks the mastic over time.
Keep an eye out for these signs:
- Modern sealant on a period surround
- Mastic that needs renewing before redecorating
- Gaps where the frame meets the masonry
- Old cement repairs round a window that have failed
Letting a property close to Tilbury Town station? Then older sash windows in a rental need their mastic kept sound to keep the weather out.
What your quote should include
- Are they insured?
- Whether all the old sealant comes out first
- How much experience the applicator has
- What the quote includes, VAT included or not
Common questions in Biggin
Is sand mastic in a coastal place like Biggin any different?
Coastal homes put outside sealant through more weather than inland ones, so preparation and the right sealant matter all the more. Walls facing the sea are generally the first to need attention.
Do you cover smaller places like Biggin?
Yes, Biggin is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Will there be a smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
Where do you work from?
Our base is in Crawley, and we work across South East England, London and Scotland.
Is the work guaranteed?
Our 12-month guarantee applies on every job.
Can I add another job to the visit?
Yes. More than one area can be quoted together.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we’re done.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.