Kent · England
Iwade Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Iwade. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps between timber frames and stone or brick
- Gaps round a timber door in stone or brick
- Wind and rain getting in round a sash window
What we are called out for in Iwade
Most of it is simply age. Sand mastic is a maintenance item like any pointing, depending on exposure and upkeep.
These are the problems we’re asked about most:
- Old sand mastic that has cracked, crumbled or fallen out
- Window mastic to renew ahead of painting
- A silicone bead on a sash window that spoils the look
- Draughty sash windows at the surround
In the older streets around Church of All Saints, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
What to look for in a quote
- How the colour is chosen
- How much experience the applicator has
- What preparation is included
- Whether the sealant suits the joint
Sand mastic for homes and businesses in Iwade
Sand mastic does not last for ever and gaps open up round the frame. Renewing it closes the gap and tidies the surround. We work on tenement windows, stone surrounds and timber door frames, and people most often call us about tired mastic found when preparing windows for paint and gaps round a timber door in stone or brick.
Many houses in smaller places like Iwade have conservatories, garden rooms or patio doors. Those joints need the same attention as the main windows.
Whatever the size of the job, it’s backed by our 12-month guarantee in Iwade and across Kent.

- Where
- Iwade (ME9)
- Region
- Kent
- Cover
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
FAQs for Iwade
Can you help a landlord with a rental near Kemsley station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Is Iwade within the area you cover?
Yes. Iwade is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do I need permission for sand mastic on a listed building?
It’s best to ask your local planning authority first. Like-for-like sand mastic is often the preferred finish, but they decide.
Will the old sealant be removed?
Yes, every time. New sealant won’t bond properly to old, so the joint is cleaned back first.
Can you match the sealant colour?
Yes. Sealants come in white, clear, grey and other colours, and we agree the colour with you before work begins.
Is it possible to take out silicone and use sand mastic instead?
In most cases. We remove the silicone and clean the joint, then point it with sand mastic.
How long does sand mastic take?
Most jobs take a few hours for a single window, longer for several, including the preparation. We’ll confirm how long when we quote.
Can I paint the new mastic?
The usual advice is to leave sand mastic unpainted. If you are redecorating the window, ask us first and we’ll talk you through it.
Different surfaces, different methods
Brick reveals
Loose mastic comes out and deep gaps are packed before pointing.
Tenement and terrace windows
Where a building is shared, window work may involve neighbours so it’s worth checking responsibilities.
Leave it or put it right?
An open joint round the frame lets weather in. Water can get to the frame and the masonry so renewing it early protects the window. Homes in smaller places like Iwade 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.
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please ring 0345 464 0079 or drop us an email and we’ll talk you through it.
Why Iwade clients choose us
- Fully insured
- Every job guaranteed for a year
- Old sealant always removed completely
- Approved under the ARBOMaster scheme
See what affects the cost or our reviews.
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Work for landlords, hotels and businesses
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.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Iwade homes and the weather
Iwade is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. 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.
If you let a flat or house near Kemsley station, older sash windows in a rental need their mastic kept sound to keep the weather out. For site and facilities teams at buildings such as Iwade School, its window and door frames need their mastic kept sound, just like a home’s.
Iwade is about 2 miles north of Sittingbourne, in Kent. We carry out sand mastic for homeowners, landlords and businesses in Iwade and nearby, as part of our work across Kent. Iwade is one of 922 places in Kent we cover. Our Chelmsford page covers work nearby.
Every address in ME9 is within our area for sand mastic. That includes homes and businesses on The Street, Sheerstone and Sheppey Way and the roads around them. Other places close to Iwade include Howt Green (1 mile south), Kemsley (1 mile south-east), Milton Regis (2 miles south-east), Sittingbourne (2 miles south) and Murston (3 miles south-east). Within a short drive, we also cover Maidstone (11 miles south-west), Whitstable (13 miles east), Faversham (8 miles south-east), Minster (4 miles north-east), Davington (8 miles south-east) and Foley Park (11 miles south-west).
Landmarks near Iwade
In Iwade, that means homes and buildings near Westlands School, Milton Creek Country Park and The Woolpack pub and the streets around them. The nearest railway station is Kemsley station, roughly 1 mile south. Other landmarks nearby include Castle Rough (1.5 miles south-east) and Court Hall Museum (1.8 miles south).
How to look after the new joints
To keep the joints looking good and working properly:
- Take care around the mastic when scraping paint
- Sort the mastic before the decorators arrive
- Get any rot dealt with first
- Don’t paint over the new mastic
Check the mastic when you check the paintwork. Small cracks are easier to deal with early.
Fine cracks show the mastic is starting to fail. It’s easier to renew it before it drops out.
How it works
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, carry out the job and clear up. Most jobs take a few hours per window, depending on the condition of the joints. For a job in Iwade, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- 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.
Preparing for the visit
- Keep pets and children clear of the area while we work
- Clear items away from the joints we are working on
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
There’s no standard price list, because every job is different. Instead, we give you a clear price for your job. To get started, phone 0345 464 0079 or email us.
