Kent · England
Tower Hamlets Sand Mastic
Traditional burnt sand mastic around sash and case windows and doors in stone and brick in Tower Hamlets, with a one-year guarantee on every job. Ask us for a quote.
- Draughty sash windows at the surround
- Cement or filler used on old window joints that has cracked
- Silicone on a period window that looks wrong
Why it’s worth doing now in Tower Hamlets
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. Around Tower Hamlets, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Every job is a little different, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
Why Tower Hamlets customers choose us
- Rated 4.9 stars on Google
- Every job guaranteed for a year
- Tidy, careful work
- Domestic, commercial and hotel work
Take a look at our cost guide or customer reviews.
About our sand mastic in Tower Hamlets
Burnt sand mastic is a traditional material that sits naturally against stone and brick. It’s a good fit for period properties where a modern sealant bead would stand out. We work on sash and case windows, period & listed homes and brick reveals, and the jobs we see most are failed mastic on an exposed elevation and old sand mastic that has cracked, crumbled or fallen out.
Around Tower Hamlets, conservatories, garden rooms and patio doors are often part of the house. Those joints need the same attention as the main windows.
You’re covered for a year from the day we finish. If anything is not right with it, phone 0345 464 0079 or send us an email.
- Location
- Tower Hamlets (CT17, CT16, CT15)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Landlords, agents and businesses in Tower Hamlets
If you manage several properties in or around Tower Hamlets, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will give you a quote.
Should I try it myself first?
If you’re set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
What affects the quote in Tower Hamlets
The price is agreed before any work begins. It takes into account:
- Working hours on commercial sites
- Whether the work is at height
- How many areas need sealing
- Which sealant suits the joint
Combining jobs into one visit usually makes better use of the time than several visits. You will get one clear quote for the whole job.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
- Access, such as stairs, a lift or height
- Pictures of the joints, sent by email
Quotes start with a quick conversation. Describe the problem, the location and the size of the job, and we’ll explain how we’d tackle it. When it suits you, phone 0345 464 0079 or email us.
Sand mastic in Tower Hamlets: local notes
Tower Hamlets is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. 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, 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 St Peter and St Paul, the joint between an old wall and a newer frame is generally the first place rain gets in. Managing a site like Priory Fields School? Then its window and door frames need their mastic kept sound, just like a home’s.
Tower Hamlets is about 1 mile south of Dover, in Kent. Jobs in Tower Hamlets get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our Kent coverage runs to 922 places, Tower Hamlets among them. We also work in Chelmsford, around 55 miles away.
All of CT17, CT16 and CT15 is covered for sand mastic, from the main roads to the quietest streets. That includes homes and businesses on Cow Lane, Odo Road and Eric Road and the roads around them. Main roads around Tower Hamlets include the A256, which makes travel easy. We also cover the places around Tower Hamlets: Charlton-in-Dover (1 mile north-east), Guston (2 miles north-east), Church Whitfield (2 miles north), East Langdon (3 miles north-east) and West Cliffe (3 miles north-east). Larger places within reach include Canterbury (14 miles north-west), Folkestone (7 miles south-west), Ramsgate (15 miles north), Deal (7 miles north-east), Hythe (10 miles south-west) and Walmer (7 miles north-east).
Near you in Tower Hamlets
Typical jobs here are in homes near St Edmund's Catholic School, High Meadow and Dover Grammar School for Girls. Tower Hamlets has its own railway station: Dover Priory station. Nearby you will also find Dover Castle (1 mile east) and Royal Victoria Hospital (less than half a mile east). Not far away are Dover Western Heights.
What happens on the day
The work is kept neat and contained to the joints we’re treating. Expect the work to take a few hours per window, depending on the condition of the joints, and we tell you how long to leave it before we go. Parking around Tower Hamlets is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- We check the window surrounds and agree which joints need renewing.
- We rake out the old mastic and clean the joint.
- We pack any deep gaps so the mastic sits at the right depth.
- Sand mastic is mixed and applied by hand, then shaped to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Preparing for the visit
- Mention any parking rules near the property
- Mention any sign-in or site rules at work premises
- Clear items away from the joints we are working on
Get a quote
If you are in Tower Hamlets and need sand mastic, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Advice
Signs you need sand mastic in Tower Hamlets
Over the years, sand mastic weathers. It dries out, cracks and loses its grip from the frame or the masonry.
People generally contact us when they notice one of these:
- Old cement repairs round a window that have failed
- Mastic round period door frames that has failed
- Gaps between timber frames and stone or brick
- Window mastic to renew ahead of painting
Rented homes near Dover Priory station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Comparing quotes
- What the quote includes, VAT included or not
- Whether the sealant suits the joint
- How long the guarantee is
- Are they insured?
Places near Tower Hamlets
Other services in Tower Hamlets
FAQs for Tower Hamlets
Will you come out to Tower Hamlets?
Yes. Tower Hamlets is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Dover Priory station?
Yes, we work for landlords and letting agents. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear quote.
Does someone need to be in?
It depends on the job. Inside work needs someone to give us access.
What exactly is sand mastic?
A traditional pointing material made from sand and a linseed-oil-based binder, used between timber frames and stone or brick.
Is it worth trying it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
Is it possible to paint over sand mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover Tower Hamlets and the rest of Kent.
What does sand mastic cost?
Every job is different, so each one gets its own quote. For a quick quote, phone 0345 464 0079 or send us an email and tell us what needs doing and where.
How the job changes by surface
Sash and case windows
On a sash window, the mastic joint shows on the outside, so a neat, even finish matters.
Timber door frames
Door frames get knocked and soaked and the mastic can crack early. We rake it out and renew it.