Kent · England
Henley Street Sand Mastic
Sand mastic in Henley Street from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Window mastic to renew ahead of painting
- Old sand mastic that has cracked, crumbled or fallen out
- Open joints round the window box
How it works
There isn’t much for you to do on the day. Show us the job and we will take it from there. The job generally takes a few hours per window, depending on the condition of the joints from start to finish. Somewhere as small as Henley Street, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Mention any sign-in or site rules at work premises
- Tell us if parking is tricky
- Tell us about any previous sealing or DIY attempts
Get a quote
Need a quote? Please call 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear quote before any work starts.
Related advice
Sand mastic in Henley Street, done properly
Old sand mastic cracks, crumbles and falls out over time, leaving gaps round the window. Renewing it closes the gap and tidies the surround. We work on sash and case windows, period & listed homes and timber door frames, and people most often call us about gaps where the frame meets the masonry and failed mastic on an exposed elevation.
Homes in small places like Henley 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.
There’s a 12-month guarantee on every job, whatever its size.
- Place
- Henley Street (DA13)
- Region
- Kent
- Cover
- A year, on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Henley Street questions
Is Henley Street in your area for sand mastic?
Yes, Henley Street is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or email us with a few details of the job.
Do you cover smaller places like Henley Street?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status.
Can I choose the sealant colour?
Normally, yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before work begins.
Is it possible to paint over sand mastic?
Sand mastic is normally left unpainted, which is what traditional guidance recommends. Ask us before decorating.
Will it make a mess?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient, so mention them when you ask for a quote.
Do you guarantee sand mastic work?
Our 12-month guarantee applies on every job.
DIY versus a professional finish
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
What sealant work cannot fix
In fairness, there are a few things sealant won’t fix:
- Broken panes
- Decayed frames that need repair
- Masonry that needs repairing
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
Surfaces we seal
- Timber door frames
- Brick reveals
- Sash and case windows
- Period & listed homes
- Stone surrounds
- Tenement windows
Windows and doors in Henley Street
With historic houses such as Cobham College (about 0.8 miles north) nearby, there’s older building stock in the area around Henley 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 is traditional sand mastic. 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 Cobham Primary School, its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Sole Street station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Henley Street is about 4 miles south of Gravesend, in Kent. If you need sand mastic in Henley Street, please phone 0345 464 0079 or email us for a quick quote. We cover Kent from our Crawley base, Henley Street included. Across Kent, we cover 922 places, and Henley Street is one of them. London is on our list too, around 23 miles away.
Every address in DA13 is covered for sand mastic. Other places close to Henley Street include Luddesdown (1 mile south), Gold Street (1 mile north-west), Sole Street (1 mile north-west), Round Street (1 mile north-west) and Foxendown (1 mile south-west). We also work in nearby towns such as Maidstone (10 miles south-east), Sittingbourne (15 miles east), Dartford (9 miles north-west), Sevenoaks (11 miles south-west), Gravesend (4 miles north) and Tonbridge (13 miles south).
Local landmarks in Henley Street
In Henley Street, that means homes and buildings near Camer Park Country Park, Meopham School and The Cock pub, among other places. Henley Street’s nearest station is Sole Street station, roughly 0.8 miles north-west of the centre. A little further out are Gravesham Community Hospital (4.7 miles north) and Rochester Castle (4.6 miles east). Not far away are Ranscombe Farm and Gad's Hill.
For landlords and businesses
If you manage several properties in or around Henley Street, jobs at different addresses can go on one quote. Send us the addresses and the work at each.
Hotels need rooms back in use, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
Looking after it afterwards
After the cure time, these simple habits help:
- Sort the mastic before the decorators arrive
- Get any rot dealt with first
- Check with your local planning authority if your home is listed
- Check the mastic when you check the paintwork
Leave the new mastic alone while it firms up. It forms a skin fairly soon but needs longer to fully harden.
Sound mastic protects the frame. Failed mastic lets water reach the timber and timber that stays wet can rot.
How the job changes by surface
Stone surrounds
Old stone surrounds are often uneven, so the joint varies in width. Sand mastic is shaped by hand to suit.
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It gives a traditional finish.
Towns and villages near Henley Street
Other services in Henley Street
Signs you need sand mastic in Henley Street
Shallow joints are a common cause. Mastic that’s too thin cracks and drops out so we make sure the new mastic is the right thickness.
Most people get in touch when they notice something like this:
- Window mastic to renew ahead of painting
- Gaps round a timber door in stone or brick
- Mastic worn away on windows facing the weather
- Gaps between timber frames and stone or brick
In the older streets around Parish Church of St Peter and St Paul, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
What your quote should include
- What preparation is included
- When the joint can take water or movement
- Whether the sealant suits the joint
- Whether they’re fully insured