Kent · England
Window Mastic in Radfield
Professional window mastic in and around Radfield, with old sealant always removed completely.
- Sealant in the wrong colour for the frame
- Mastic that has split away from the wall
- Black, perished sealant on frames
About our window mastic in Radfield
Whether it’s one leaking patio door or every frame on the house, you will get a clear quote before we start. Just call 0345 464 0079 or send us an email and tell us how many frames there are and how they’re reached for window mastic in Radfield. We work on patio & French doors, uPVC windows and window sills, and common reasons people get in touch are untidy mastic left by window fitters and white mastic on grey or black frames.
Outdoor sealant needs dry, clean surfaces, so work on frames around Radfield is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
Big or small, it’s backed by our one-year guarantee.
- Place
- Radfield (ME9)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the quote in Radfield
You will get a clear quote before work begins. It’s based on:
- The size of the job
- Any mould that needs treating
- Working hours on commercial sites
- Whether the work is at height
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re unsure, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
What we need to know
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Where the job is, and your postcode
- How we’d reach the joints
- If it’s domestic, commercial or a hotel
- Roughly how big the job is
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Places near Radfield
What else we do in Radfield
What happens on the day
We keep the work tidy and contained to the joints we’re treating, so you can get on with your day. The job usually takes a few hours for a handful of frames, longer for a whole house, and we tell you how long to leave it before we go. In a small place like Radfield, access is normally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We check how each frame can be reached safely.
- All the failed sealant is cut away, along with any loose debris.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Preparing for the visit
- Mention if the joints have been sealed before
- Mention any leaks or damp you’ve noticed
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
For window mastic in Radfield, 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
Landlords, agents and businesses in Radfield
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Signs you need window mastic in Radfield
Plenty of failed mastic was poorly applied in the first place. Sealant run over dust, wet brick or loose mortar didn’t grip properly, and it lets go sooner than it should.
It’s worth asking for a quote if you see:
- Cold air getting in at the frame edge
- Rushed sealant from a window installation
- Draughty joints inside around the window
- Gaps where the sill meets the wall
For landlords with property near Teynham station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Comparing quotes
- What product goes in the joint
- Is VAT in the price?
- Who turns up on the day
- How the surfaces are prepared before sealing
Leave it or put it right?
Once mastic fails, rain can get between the frame and the wall. Left long enough, it can stain inside walls, spoil plaster and rot wooden frames. Resealing now is a small job by comparison. Older cottages and farmhouses around Radfield can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
Why Radfield clients choose us
- Anti-fungal sanitary silicone in wet areas
- 20+ years of sealant experience
- Sealant colour chosen to suit
- 180+ five-star Google reviews
Take a look at how sealant jobs are priced and what customers say.
Radfield questions
Does the coastal weather in Radfield affect outside sealant?
Coastal homes put outside sealant through more weather than inland ones, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Can you help a landlord with a rental near Teynham station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear price.
Do the sealants smell?
There can be a smell while the sealant cures. Opening a window helps.
Will you leave a mess?
No. We protect the surfaces around the joints, and we tidy up before we go.
Is it OK to seal over old sealant?
No. Fresh sealant doesn’t stick to old sealant, and it traps any mould or water underneath. It all has to come out first.
Do you cover Radfield?
Yes, we do. Our applicators work in Radfield, and the service is the same as everywhere else.
Where is Mr Mastic based?
We work from Crawley. We cover Radfield and the rest of Kent, along with the rest of our area.
Can I paint over the new sealant?
That depends on the product. Some hybrid sealants can be painted; silicone cannot. Mention any painting plans before any work starts.
When something else is needed
We will always be straight with you, so here’s what new sealant will not do:
- Damp problems in the wall away from the window
- Rotten timber, which needs a joiner first
- Broken hinges, locks or handles
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly.
Surfaces we seal
- Composite doors
- Timber windows & doors
- Patio & French doors
- Window sills
- uPVC windows
- Aluminium frames
Aftercare tips
Good habits help new joints last longer. A few tips:
- Walk round the house once a year and look at the joints
- Keep timber frames painted
- Clean frames with a soft cloth and soapy water
- Ventilate rooms so frames do not stay wet inside
Most silicone sealants will not take paint, so if you are planning to paint the frames or walls, tell us beforehand. There are paintable sealants for joints that need it.
Water gets in quietly when mastic fails. Often the first sign is a damp patch inside or flaking paint on the reveal. Catching it early keeps the fix to a reseal.
Windows and doors in Radfield
Radfield is within about 3 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 window and door frames, especially on the side facing the sea. Historic houses like Belmont House and Gardens (about 4.9 miles south-east) are a reminder that the area around Radfield has older buildings as well as new. In older buildings, 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, its window and door frames need their mastic kept sound, just like a home’s. If you live in an older home near Church of St Lawrence, the joint between an old wall and a newer frame is usually the first place rain gets in.
Radfield is about 2 miles east of Sittingbourne, in Kent. Whether you are in the middle of Radfield or further out, window mastic is available for homes and businesses alike. We cover 922 towns and villages across Kent, large and small. There’s also a page for Chelmsford, about 31 miles away.
Jobs for window mastic in ME9 is quoted and booked the same way as anywhere else. Close by, we work in 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).
Local landmarks in Radfield
Typical jobs here are in homes near Sittingbourne Community College and Fox pub, among other places. The nearest railway station is Teynham station, roughly 0.9 miles east of the centre. Well-known places in the area include Bayford Court (2 miles north-west) and Sittingbourne Heritage Museum (1.9 miles west).