Kent · England
Sand Mastic in Hamstreet
Sand mastic in Hamstreet from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Draughty sash windows at the surround
- Crumbling sand mastic round a window
- Cement or filler used on old window joints that has cracked
Windows and doors in Hamstreet
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.
If you live in an older home near Church of the Good Shepherd, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Letting a property close to Ham Street station? Then any sash windows need sound mastic to keep draughts and rain out.
Hamstreet is about 5 miles south of Ashford, in Kent. Every kind of property in Hamstreet is covered for sand mastic, old or new, large or small. The work is guaranteed for a year. Our area takes in 922 places across Kent, large and small. We also work in Crawley, around 45 miles away.
All of TN26 is within our area for sand mastic. You’ll find streets such as The Street, Dukes Meadow and Rectory Walk. Close by, we work in Orlestone (1 mile north-west), Ruckinge (1 mile east), Kenardington (2 miles west), Bromley Green (2 miles north) and Stone Cross (2 miles north-east). Larger places within reach include Ashford (5 miles north), Folkestone (14 miles east), Hythe (10 miles east), Hawkinge (14 miles east), Tenterden (7 miles west) and Cheriton (13 miles east).
Around Hamstreet
Around Hamstreet, our work takes us to homes and buildings near The Dukes Head pub, among other places. There’s a railway station in Hamstreet itself: Ham Street station. Nearby you will also find Brenzett Aeronautical Museum (3.9 miles south) and William Harvey Hospital (5.8 miles north-east). Open spaces near Hamstreet include Orlestone Forest.
How we handle sand mastic in Hamstreet
Silicone on a period window often looks wrong and isn’t always the right material. Sand mastic gives a finish that matches the age of the house, and we can replace one with the other. If you’re dealing with silicone on a period window that looks wrong and window mastic to renew ahead of painting, we can help.
Somewhere as small as Hamstreet, older homes often have timber frames set in stone or brickwork. Older buildings like these do not always suit modern silicone, so the sealant has to be chosen to suit the building.
You are covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Where
- Hamstreet (TN26)
- Region
- Kent
- Cover
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
When to call us in Hamstreet
Most of it is simply age. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
Keep an eye out for these signs:
- Draughty sash windows at the surround
- Open joints round the window box
- Failed mastic on an exposed elevation
- Cement or filler used on old window joints that has cracked
Schools such as Hamstreet Primary Academy are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Before you book anyone
- Is VAT in the price?
- Whether the sealant suits the joint
- How the joint is cleaned and prepared
- The length of the guarantee
What the job involves on each surface
Tenement and terrace windows
Windows above ground floor need the right access. Let us know the floor and we will confirm access.
Sash and case windows
The box of a sash and case window sits in the stone or brick opening. The gap round it is pointed with sand mastic.
The process
Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it generally takes anything from a few hours to a full day, depending on how many windows. For a village or hamlet like Hamstreet, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Clear the area around the work
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
Every job is quoted individually. Simply call 0345 464 0079 or email us and describe the job, and photos are welcome.
Related advice
Hamstreet questions
Do you cover smaller places like Hamstreet?
Yes, Hamstreet is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you work for landlords with property near Ham Street station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Do you have insurance?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Can you replace silicone on a period window with sand mastic?
Yes. The silicone is cut out and the joint cleaned, then point it with sand mastic.
What is sand mastic?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
Do you guarantee sand mastic work?
Every job comes with our 12-month guarantee.
Is it possible to paint over sand mastic?
The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we’ll advise.
Towns and villages near Hamstreet
What else we do in Hamstreet
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
What affects the quote in Hamstreet
Every job gets its own quote. This is what makes a difference:
- How easy the joints are to reach
- Working hours on commercial sites
- The size of the job
- How much old sealant there is and how hard it is to remove
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
What to tell us for a quote
What to tell us when you ask for a quote:
- The rough size of the job
- A few photos by email, if you can
- The problem you’ve noticed
- If someone has resealed it before
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Honest limits
To be straight with you, some problems need a different trade:
- Timber that has rotted
- Whether work needs listed building consent
- Crumbling stone or brickwork round the window
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer.
Where we work in Hamstreet
- Period & listed homes
- Timber door frames
- Brick reveals
- Tenement windows
- Sash and case windows
- Stone surrounds
DIY versus a professional finish
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.