Kent · England
Sand mastic for sash & case windows in Ham, Kent
Professional sand mastic in and around Ham, with every bit of old sealant taken out first and a 12-month guarantee.
- Mastic that needs renewing before redecorating
- Gaps round a timber door in stone or brick
- Wind and rain getting in round a sash window
About our sand mastic in Ham
Sand mastic suits most period window surrounds. On modern frames we’d normally use a flexible sealant, and we will talk through which suits your home. If you have gaps round a timber door in stone or brick and old sand mastic that has cracked, crumbled or fallen out, we can put it right.
Around Ham, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
The work is covered for a year after we finish. If anything isn’t right with it, ring 0345 464 0079 or send us an email.
- Where
- Ham (CT14)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Questions from Ham
Will you come out to Ham?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Is Ham in your area for sand mastic?
Yes. Our work covers London and the South East, and Ham is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
I rent my home. Can I book you?
Yes, but check with your landlord or agent first. Many landlords are glad to have it sorted.
Do you have insurance?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Can you work on commercial sites?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. We can talk about working times when we quote.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all.
Is consent needed for window work on a listed home?
Checking first is sensible. Ask your local planning authority whether consent is needed for listed or conservation-area properties.
What is sand mastic?
Sand plus a binder based on linseed oil. It’s built up in the joint by hand and shaped to suit the surround.
Should I try it myself first?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Windows and doors in Ham
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 Walmer Castle (about 4.4 miles south-east) nearby, there’s older building stock in the area around Ham 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.
Homes close to Church of St George include some older properties, and replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Rented homes near Sandwich station change hands often, and 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 Worth Primary School, its window and door frames need their mastic kept sound, just like a home’s.
Ham is about 3 miles north-west of Deal, in Kent. Jobs in Ham get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Ham is one of 922 towns and villages in Kent we cover. Chelmsford is on our list too, around 50 miles away.
All of CT14 is covered for sand mastic, from the main roads to the quietest streets. We also cover the places around Ham: Statenborough (1 mile north-west), Felderland (1 mile north), Worth (1 mile north-east), Marley (1 mile south-east) and Finglesham (1 mile south-east). Within a short drive, we also cover Canterbury (11 miles west), Margate (10 miles north), Dover (8 miles south), Folkestone (13 miles south-west), Ramsgate (7 miles north-east) and Broadstairs (9 miles north-east).
Landmarks near Ham
Locally, jobs take us to homes and businesses close to Ham Fen, Sandwich Technology School and The Blue Pigeons pub. Ham’s nearest station is Sandwich station, roughly 1.7 miles north. Other landmarks nearby include Sandown Castle (3.1 miles east) and The Precinct Toy Collection (2.1 miles north). Green spaces nearby include Monk's Wall nature reserve.
What happens on the day
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes a few hours per window, depending on the condition of the joints, depending on the size of the job. Somewhere as small as Ham, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Getting ready for the visit
- Where the joints are inside, avoid wetting them before we arrive
- Tell us if parking is tricky
- Tell us about access, such as stairs, a lift or high-level joints
How to get a quote
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
Read more
What happens if it’s left?
Before painting the windows, it pays to renew the mastic. Paint over cracked mastic won’t stop the gaps and traditional guidance is to leave the new mastic unpainted. Where a wall is exposed, as many are in small places like Ham, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
The cost depends on the amount of work, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before work begins.
Why choose Mr Mastic in Ham
- A 12-month guarantee on all work
- 180+ five-star Google reviews
- Over 20 years’ experience
- An ARBOMaster approved applicator
Read what affects the cost or what customers say.
How to look after the new joints
Good habits help new joints last longer. Our tips:
- Avoid heavy scraping on the mastic joint
- Renew mastic before redecorating the windows
- Look over the window mastic once a year
- Ask us before painting near the mastic
Don’t run silicone over the new mastic. If anything cracks, get it looked at rather than patching it.
Crumbling mastic lets rain into the joint. That water can reach the timber frame and the wall, so renewing it early is worth it.
More services for Ham
What the job involves on each surface
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. We renew it the same way as on windows.
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Landlords, agents and businesses in Ham
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
Housing providers, facilities teams and property managers book us too in Ham and across Kent. Several sites can be quoted together, and we are fully insured.
What affects the quote in Ham
Some jobs are bigger than they look, and some smaller. The main factors:
- How much old sealant there is and how hard it is to remove
- Working hours on commercial sites
- The size of the job
- How many rooms, windows or areas are involved
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference.
Asking for a quote
There’s no need for technical detail. Just tell us:
- What’s wrong with the joints now
- Where the property is
- If someone has resealed it before
- The rough size of the job
Need a quote? Please ring 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 work begins.