Kent · England
Sand Mastic in The Brents
Sand mastic for The Brents and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Mastic that needs renewing before redecorating
- Failed mastic on an exposed elevation
- Old sand mastic that has cracked, crumbled or fallen out
How we quote for sand mastic
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How many rooms, windows or areas are involved
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
- How easy the joints are to reach
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Helping us quote
When you contact us, these details help:
- A few pictures by email, if you can
- Any access issues, like height or stairs
- The type of property
- The problem you’ve noticed
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or email us.
About our sand mastic in The Brents
We renew sand mastic around sash windows and doors set in stone or brick. Out comes the old, loose mastic, and new mastic is applied and shaped by hand. We work on stone surrounds, tenement windows and brick reveals, and the jobs we see most are old sand mastic that has cracked, crumbled or fallen out and window mastic to renew ahead of painting.
Homes around The Brents range from older properties to newer houses, and their windows range just as widely. The right sealant depends on the frame and on what it sits in.
There’s a 12-month guarantee on every job, large or small.
- Place
- The Brents (ME13)
- Region
- Kent
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026

Surface by surface
Tenement and terrace windows
Where a building is shared, window work may involve neighbours, so check who is responsible first.
Stone surrounds
The stone is treated with care while raking out the old mastic.
How it works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The work itself takes a few hours per window, depending on the condition of the joints, including the tidy-up. In a smaller place like The Brents, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Clear items away from the joints we’re working on
- Mention any sign-in or site rules at work premises
- Try not to wet indoor joints just before the visit
Get a quote
We quote each job on its own, so start by telling us what you need. Simply phone 0345 464 0079 or send us an email and describe the job.
Read more
Questions from The Brents
Do you cover smaller places like The Brents?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Faversham station?
Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.
Do you guarantee sand mastic work?
There’s a 12-month guarantee on every job.
Can you do several jobs on one visit?
Yes, we can. More than one area can go on one quote.
Can sand mastic be painted?
The usual advice is to leave sand mastic unpainted. If you’re redecorating the window, ask us first and we will advise.
How long does sand mastic take to go off?
It forms a skin fairly soon and it hardens fully over a longer time. The weather and joint depth both affect it.
Are you ARBOMaster approved?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before resealing.
More services for The Brents
Landlord and commercial work in The Brents
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Why deal with it now?
Not every draught comes from the sashes themselves. Open mastic joints round the box can let air in, and renewing the mastic closes them. Homes in smaller places like The Brents can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Homes and businesses are quoted the same way: the amount of work, how we reach it and what it needs. Ask us for a quote and we’ll explain what it covers.
Why The Brents clients choose us
- We leave the area clean and tidy
- Every job guaranteed for a year
- Fully insured
- Anti-fungal silicone where joints get wet
What sand mastic looks like in The Brents
The Brents is within about 3 miles of the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For site and facilities teams at buildings such as Davington Primary School, larger buildings have plenty of frames, and the mastic around each one ages. If you let a flat or house near Faversham station, any sash windows need sound mastic to keep draughts and rain out.
The Brents is about 1 mile north-east of Faversham, in Kent. Homes, rented property, offices and hotels in The Brents can book us for sand mastic, old or new, large or small. Every job comes with our 12-month guarantee. Across Kent, we cover 922 places, and The Brents is one of them. There’s also a page for Chelmsford, roughly 34 miles from The Brents.
Postcode districts we cover here for sand mastic: ME13. Sand mastic is available to properties on Ham Road, Back Lane and Quay Lane. Other places close to The Brents include Davington (1 mile west), Faversham (1 mile south-west), Preston (1 mile south), Oare (1 mile north-west) and Ospringe (1 mile south-west). We also work in nearby towns such as Ashford (12 miles south), Canterbury (9 miles east), Sittingbourne (7 miles west), Whitstable (6 miles east), Herne Bay (11 miles east) and Minster (8 miles north-west).
Landmarks near The Brents
Around The Brents, our work takes us to homes and buildings near The Brents Tavern, Oare Meadow and Queen Elizabeth's Grammar School. The closest station to The Brents is Faversham station, roughly 0.6 miles south of the centre. Well-known places in the area include Newnham Castle (4.6 miles south-west).
Should I try it myself first?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
Do you need sand mastic in The Brents?
Age is the main cause. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
Look out for these signs:
- A silicone bead on a sash window that spoils the look
- Mastic worn away on windows facing the weather
- Window mastic to renew ahead of painting
- Old cement repairs round a window that have failed
In the older streets around Faversham Parish Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- Who turns up on the day
- The length of the guarantee
- Is the old sealant removed completely?
- How long to leave it before use
