Kent · England
Sand mastic for sash & case windows in Broomfield, Kent
Professional sand mastic in and around Broomfield, with old sealant always removed completely and a 12-month guarantee.
- Modern sealant on a period surround
- Mastic that needs renewing before redecorating
- Mastic dropping out of the joint
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
Sand mastic in Broomfield
Sand mastic suits most period window surrounds. Newer frames generally get a flexible sealant instead, and we will talk through which suits your home. If you have weathered mastic on the most exposed windows and old sand mastic that has cracked, crumbled or fallen out, we can help, on period & listed homes, sash and case windows and stone surrounds alike.
Around Broomfield, 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.
You’re covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or email us.
- Place
- Broomfield (CT6)
- Region
- Kent
- Cover
- A year, on every job
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What we do, step by step
We bring everything the job needs with us, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. It normally takes a few hours per window, depending on the condition of the joints. For a village or hamlet like Broomfield, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic is not too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Getting ready for the visit
- Mention any tricky access
- Clear the area around the work
- Mention any sign-in or site rules at work premises
Getting a quote
We quote each job on its own, so the first step is telling us about yours. Simply phone 0345 464 0079 or drop us an email and describe the job, and photos are welcome.
Advice
When it is not the sealant
Some problems need a builder, plumber or other trade rather than us:
- Sashes that rattle, stick or will not open
- Putty and glazing repairs
- Masonry that needs repairing
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
Joints and surfaces we work on
- Timber door frames
- Sash and case windows
- Brick reveals
- Period & listed homes
- Tenement windows
- Stone surrounds
Common problems we fix in Broomfield
Rain on the window surround works into any crack and loosens it further. Exposed elevations normally fail first.
People normally contact us after spotting something like this:
- Modern sealant on a period surround
- Gaps between timber frames and stone or brick
- Window mastic to renew ahead of painting
- Draughty sash windows at the surround
If you let a flat or house near Herne Bay station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
What to look for in a quote
- When the joint can take water or movement
- Which sealant they’ll use, and why
- Whether they’re fully insured
- How much experience the applicator has
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Renew mastic before redecorating the windows
- Ask a joiner to look at soft timber first
- Go gently near the mastic when preparing windows
- Avoid patching sand mastic with silicone
Make sure water drains away from the window surround. Constant wetting wears the mastic faster.
Good mastic helps keep the frame dry. Once it fails, water can sit against the timber and timber that stays wet can rot.
Broomfield: your questions answered
Do you work for landlords with property near Herne Bay station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before work begins.
Do you cover smaller places like Broomfield?
Yes. Broomfield is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is it possible to take out silicone and use sand mastic instead?
Yes, we do this often. All the old silicone is removed first so the mastic beds in well.
Can new sealant go over the old?
No, and we never do. It can look neat for a few weeks, but the new bead soon lifts. The old sealant has to come out completely.
Do the sealants smell?
There can be a smell while the sealant cures. Ventilation helps.
Will you leave a mess?
We keep the work tidy. We protect what’s around the joints.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we are using.
Can you do several jobs on one visit?
Yes, we can. More than one area can be quoted together.
Towns and villages near Broomfield
Other services in Broomfield
What affects the cost of sand mastic
There’s no set price list, because no two jobs are the same. The quote depends on:
- The amount of work
- How many rooms, windows or areas are involved
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
The cost reflects the work involved, not guesswork. That is why we ask a few questions first and agree the price before starting.
What we need to know
To make quoting easier, let us know:
- Where the property is
- Roughly how big the job is
- If someone has resealed it before
- A few photos by email, if you can
We don’t publish a price list. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
Why it’s worth doing now in Broomfield
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and finishes neatly against the masonry. Around Broomfield, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
The cost depends on the amount of work, how much old material has to come out and how easy the joints are to reach. You will have a clear quote before any work starts.
Why choose Mr Mastic in Broomfield
- Full insurance on every job
- An ARBOMaster approved applicator
- Anti-fungal sanitary silicone in wet areas
- Experience in homes, commercial sites and hotels
Take a look at our cost guide or our reviews.
Frames and glazing around Broomfield
Broomfield is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That’s 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.
In the older streets around Church of St Bartholomew, the joint between an old wall and a newer frame is normally the first place rain gets in. Schools such as Herne Church of England Infant School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Broomfield is about 1 mile south-east of Herne Bay, in Kent. If you need sand mastic in Broomfield, please phone 0345 464 0079 or drop us an email for a quick quote. We are based in Crawley and cover Kent, Broomfield included. Broomfield is one of 922 towns and villages in Kent where we work. For nearby work, see our Chelmsford page (39 miles or so).
Every address in CT6 is within our area for sand mastic. That includes homes and businesses on Barley Close, The Meadows and Ladyfields. Other places close to Broomfield include Hunters Forstal (1 mile west), Herne (1 mile south-west), Hillborough (1 mile north-east), Millbank (1 mile south-east) and Hawthorn (1 mile east). We also work in nearby towns such as Canterbury (6 miles south-west), Margate (10 miles east), Ramsgate (11 miles east), Broadstairs (12 miles east), Whitstable (5 miles west) and Deal (14 miles south-east).
Local landmarks in Broomfield
Typical jobs here are in homes near Curtis Wood, The Huntsman And Horn Public House and Herne Bay High School, among other places. The closest station to Broomfield is Herne Bay station, about 1.5 miles west of the centre. Other landmarks nearby include Whitstable and Tankerton Hospital (4.4 miles west). The countryside around Broomfield includes West Blean and Thornden Woods.