Kent · England
Sand Mastic in Warren Street
Sand mastic across Warren Street and nearby, with old sealant always removed completely and a one-year guarantee.
- Window mastic to renew ahead of painting
- Mastic round period door frames that has failed
- Modern sealant on a period surround
Sand mastic for homes and businesses in Warren Street
Silicone on a period window often looks wrong and does not suit the building. Sand mastic gives a finish that matches the age of the house and we can swap the silicone for it. We’re often asked to deal with draughts and rain around sash boxes and gaps where the frame meets the masonry, on period & listed homes, timber door frames and sash and case windows.
Homes in small places like Warren Street often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
Your job is guaranteed for a year, as with all our work.
- Where
- Warren Street (ME17)
- Region
- Kent
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

What we can’t put right
We will not take on work that will not last, so these are the limits:
- Whether work needs listed building consent
- Decayed frames that need repair
- Sash cords, weights and draught-proofing of the sashes
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
Surfaces we seal
- Brick reveals
- Tenement windows
- Period & listed homes
- Timber door frames
- Sash and case windows
- Stone surrounds
Sand mastic in Warren Street: local notes
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. With historic houses such as Belmont House and Gardens (about 4.1 miles north-east) nearby, there’s older building stock in the area around Warren Street as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
If you look after a building such as The Lenham School, larger buildings have plenty of frames, and the mastic around each one ages. For landlords with property near Lenham station, cracked sand mastic around sash windows lets in the draughts tenants complain about. Belmont House and Gardens, about 4.1 miles north-east, is one of the historic houses in the wider area around Warren Street, and older homes nearby need a sealant that suits their walls.
Warren Street is about 7 miles south of Sittingbourne, in Kent. Every kind of property in Warren Street is covered for sand mastic, old or new, large or small. The work is guaranteed for a year. We cover 922 towns and villages across Kent, large and small. You can also see our page for Chelmsford, roughly 36 miles from Warren Street.
Here we cover the ME17 postcode area for sand mastic. We cover properties on Payden Street, Slade Road and Warren Street. Other places close to Warren Street include Payden Street (1 mile north-west), Cold Harbour (1 mile south-east), Woodside Green (1 mile west), West Street (2 miles west) and Wichling (2 miles north). Larger places within reach include Maidstone (10 miles west), Ashford (9 miles south-east), Canterbury (14 miles east), Sittingbourne (7 miles north), Whitstable (14 miles north-east) and Faversham (7 miles north-east).
Near you in Warren Street
Around Warren Street, our work takes us to homes and buildings near Spuckles and Kennelling Woods and The Harrow pub and the streets around them. Warren Street’s nearest station is Lenham station, roughly 2.4 miles west of the centre. Nearby you’ll also find Newnham Castle (3.3 miles north-east).
Work for landlords, hotels and businesses
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.
If you manage several properties in or around Warren Street, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
How it works
When we arrive, we start by going over the job with you, so you know exactly what we’re doing. We protect the surfaces around the joints before any work starts. The work generally takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Warren Street, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we agree which joints need doing.
- We remove the old, loose mastic.
- 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.
Before we arrive
- Let us know if you’ve seen damp or leaks
- Mention any parking rules near the property
- Mention any sign-in or site rules at work premises
Get a quote
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.
Advice
What affects the quote in Warren Street
Some jobs are bigger than they look, and some smaller. The main factors:
- Working hours on commercial sites
- The old material and how stubborn it is
- Any mould that needs treating
- The number and length of the joints
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
What we need to know
Before you ask for a quote, have a think about:
- Roughly how big the job is
- The address or postcode of the job
- Whether it has been sealed before
- Any access issues, like height or stairs
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. Whenever you’re ready, phone 0345 464 0079 or email us.
Leave it or put it right?
Draughts round a sash window aren’t always the sashes. Gaps between the frame and the wall can be just as bad, and renewing the mastic closes them. Older cottages and farmhouses around Warren Street can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Commercial jobs are quoted on the same basis as homes: how much there is to do, how we reach it and what it needs. Call for a quick quote and we will explain what it covers.
Why choose Mr Mastic in Warren Street
- Sanitary silicone with an anti-fungal additive in wet areas
- Domestic, commercial and hotel work
- Fully insured
- A 12-month guarantee on all work
Read how sealant jobs are priced or our reviews.
Nearby places to Warren Street
What else we do in Warren Street
Common questions in Warren Street
Can you do sand mastic in Warren Street?
Yes. We work across London and the South East, and Warren Street is part of that. Just phone 0345 464 0079 or drop us an email with a few details of the job, and we’ll give you a clear quote.
Can you help a landlord with a rental near Lenham station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. If you can, email a few photos.
How long does the job take?
Most jobs take anything from a few hours to a full day, depending on how many windows. We will confirm how long when we quote.
Is it messy?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
Keeping the joints in good condition
So the new joints stay in good condition:
- Take care around the mastic when scraping paint
- Make sure water runs off the sill
- Don’t run silicone over sand mastic
- Don’t paint over the new mastic
Leave the new mastic unpainted, which is the traditional advice. Ask us before any decorating around it.
Good mastic helps keep the frame dry. Failed mastic lets water reach the timber and timber that stays wet can rot.
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
