Kent · England
Sand Mastic in Radfield
Professional sand mastic in and around Radfield, with every bit of old sealant taken out first and a 12-month guarantee.
- Gaps between timber frames and stone or brick
- Old sand mastic that has cracked, crumbled or fallen out
- Draughts and rain around sash boxes
Sand mastic in Radfield, done properly
Our applicators renew the sand mastic around sash and case windows and doors set in stone or brick. The old mastic is raked out, the joint is prepared and new mastic is shaped by hand. Common call-outs are for patchy fillers round a sash window and mastic that needs renewing before redecorating, on tenement windows, timber door frames and stone surrounds.
Somewhere as small as Radfield, older homes often have timber frames set in stone or brickwork. Not every older frame suits a modern silicone bead, and sometimes a traditional sand mastic is the better choice.
Our work is backed for twelve months.
- Where
- Radfield (ME9)
- Wider area
- Kent
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Radfield: your questions answered
Do you work for landlords with property near Teynham station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover smaller places like Radfield?
Yes. Radfield 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.
Are you fully insured?
Yes. We’re fully insured, and we’ve been doing sealant work for more than 20 years.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. We can talk about working times when we quote.
Is the work guaranteed?
Our 12-month guarantee applies to all our work.
What is sand mastic?
It’s sand mixed with a linseed-oil-based binder, used between timber frames and stone or brick.
Can sand mastic be painted?
It’s traditionally left unpainted, as guidance on traditional windows advises. Talk to us before any painting near it.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
How we quote for sand mastic
For a quick quote, just ask. What matters most is:
- How easy the joints are to reach
- The number and length of the joints
- How many areas need sealing
- When we can work, for business premises
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
- A few pictures by email, if you can
For a quote, ring 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. We will send you a clear quote before any work starts.
How it works
We keep the work tidy and contained to the area we are working on. Expect the work to take a few hours per window, depending on the condition of the joints. In a small place like Radfield, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at the surrounds with you and agree the joints to renew.
- We remove the old, loose mastic.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- We dress the finish so it sits neatly against the masonry.
Before we arrive
- Clear the area around the work
- Let us know about stairs, lifts or work at height
- Tell us about any previous sealing or DIY attempts
Getting a quote
Every job is quoted individually, so the first step is telling us about yours. Just ring 0345 464 0079 or drop us an email with the details, and photos are welcome.
Read more
What sand mastic looks like in Radfield
Radfield is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. With historic houses such as Belmont House and Gardens (about 4.9 miles south-east) nearby, there’s older building stock in the area around Radfield as well as newer homes. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you look after a building such as Teynham Parochial Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as Church of St Lawrence, the joint between an old wall and a newer frame is normally the first place rain gets in. Rented homes near Teynham station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Radfield is about 2 miles east of Sittingbourne, in Kent. If you need sand mastic in Radfield, it’s easy to get a quote: please phone 0345 464 0079 or email us. We cover Kent from our Crawley base, Radfield included. 922 places in Kent are on our list. You can also see our page for Chelmsford, roughly 31 miles from Radfield.
Postcode districts we cover here for sand mastic: ME9. We also cover Bogle (1 mile south-east), Tonge Corner (1 mile north), Rodmersham (1 mile south-west), Lynsted (1 mile south) and Bapchild (1 mile south-west). Larger places within reach include Maidstone (12 miles west), Ashford (14 miles south), Canterbury (13 miles east), Whitstable (11 miles east), Faversham (5 miles east) and Herne Bay (15 miles east).
Around Radfield
Typical jobs here are in homes near Sittingbourne Community College and Fox pub and the streets around them. Radfield’s nearest station is Teynham station, roughly 0.9 miles east. Nearby you’ll also find Bayford Court (2 miles north-west) and Sittingbourne Heritage Museum (1.9 miles west).
For landlords and businesses
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured.
What we cannot put right
To be straight with you, there are a few things sealant won’t fix:
- Cracked or broken glass
- Decisions on consent for listed homes
- Masonry that needs repairing
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
Surfaces we seal
- Brick reveals
- Sash and case windows
- Period & listed homes
- Timber door frames
- Tenement windows
- Stone surrounds
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 getting the depth right matters as much as the look.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Keeping the joints in good condition
A little care helps the new joints last. Our advice:
- Sort the mastic before the decorators arrive
- Keep sills and gutters clear so water drains away
- Ask the planning authority about consent for listed or conservation-area homes
- Check the mastic when you check the paintwork
Leave the new mastic alone while it firms up. It skins over quickly but needs longer to fully harden.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
Nearby places to Radfield
Other services in Radfield
What the job involves on each surface
Brick reveals
An open joint at a brick reveal lets weather in. New mastic seals the gap.
Tenement and terrace windows
Where a building is shared, window work may involve neighbours, so check who is responsible first.