Kent · England
Teynham Window Mastic
We cover Teynham for mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Black, perished sealant on frames
- Hard, cracked sealant around windows
- Rushed sealant from a window installation
How we quote for window mastic
Jobs vary more than people expect. The main factors:
- How easy the joints are to reach
- Any working-time requirements on site
- How much old sealant there is and how hard it is to remove
- Mould in or behind the old joints
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether we need extra access for height. Your quote takes all of that into account.
Asking for a quote
To help us quote quickly, let us know:
- If it’s domestic, commercial or a hotel
- The rough size of the job
- A few photos by email, if you can
- Where the property is
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
Window mastic in Teynham, done properly
From a single sill to a whole house of windows, you will get a clear quote before we start. Just phone 0345 464 0079 or send us an email and tell us how many frames there are and how they’re reached. If you have cold air getting in at the frame edge and damp patches on the reveal after heavy rain, we can help, on composite doors, uPVC windows and timber windows & doors alike.
Around Teynham, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows, and any older timber or sash windows need a sealant that suits them.
You get a 12-month guarantee, the same in Teynham as everywhere else we work.
- Place
- Teynham (ME9)
- Region
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Keep timber frames painted
- Wipe condensation off the frames
- Paint up to the joint, not over it
- Keep solvents and bleach off the sealant
Timber frames need their paint kept up, since wood that gets wet swells and shrinks more. Paint up to the joint, not over the silicone.
Look out for the warning signs: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. If you notice one, it’s time to get the joint looked at.
Why deal with it now?
Resealing frames is a short job: it takes a morning for a couple of windows and a door. Leave it until water is coming in and you may need plastering and decorating as well. Homes in smaller places like Teynham can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
The cost reflects the work involved, not guesswork. That is why we ask about the job first and give you a clear quote before work begins.
Why choose Mr Mastic in Teynham
- Over 20 years’ experience
- 4.9 on Google from 180+ five-star reviews
- Colour picked to suit the job
- Arbo and Everbuild products
Take a look at our cost guide or our reviews.
Nearby places to Teynham
More services for Teynham
What we can’t put right
We’d rather tell you now than do work that will not last, so here’s what sealant cannot put right:
- A frame that has rotted at the joint
- Draughts through the window seals rather than the frame
- A failed sealed unit that has misted up
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think.
Where we work in Teynham
- Patio & French doors
- Timber windows & doors
- Window sills
- Composite doors
- uPVC windows
- Aluminium frames
Teynham homes and the weather
Teynham 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. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For landlords with property near Teynham station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. For site and facilities teams at buildings 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 Mary, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Teynham is about 3 miles east of Sittingbourne, in Kent. Teynham gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. 922 places in Kent are on our list, large and small. We also work in Chelmsford, about 31 miles from Teynham.
Here we cover the ME9 postcode area for window mastic. Streets in the area include Station Road, London Road and Belle Friday Close, all of which we cover. We also cover the places around Teynham: Teynham Street (1 mile north-east), Deerton Street (1 mile east), Norton Ash (1 mile south-east), Lewson Street (1 mile south-east) and Tickham (1 mile south). We also work in nearby towns such as Maidstone (13 miles west), Ashford (13 miles south), Canterbury (13 miles east), Sittingbourne (3 miles west), Whitstable (10 miles east) and Faversham (4 miles east).
Local landmarks in Teynham
Around Teynham, our work takes us to homes and buildings near Sittingbourne Community College and The Dover Castle pub and the streets around them. Teynham has its own railway station: Teynham station. Well-known places in the area include Bayford Court (2.8 miles west) and Sittingbourne Heritage Museum (2.7 miles west).
Can I do it myself?
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.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
What the job involves on each surface
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so a flexible sealant is essential. The paint or stain needs to be sound where the sealant meets it.
Composite doors
Draughts round the door leaf normally come from worn seals or adjustment, not the mastic. We will tell you if that’s what we find.
How the visit works
The work is kept neat and contained to the area we’re working on, so you can get on with your day. The job normally takes a few hours for a handful of frames, longer for a whole house. In a smaller place like Teynham, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First, we confirm safe access to each frame.
- Old, cracked mastic is removed completely.
- The surfaces are cleaned and left dry.
- Backing rod fills deep voids and the sealant goes in on top.
- We tool the joint so water runs off, then clear up.
How to prepare
- Try not to wet indoor joints just before the visit
- Mention any tricky access
- Clear the area around the work
Getting a quote
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or email us and describe the job and send photos if you have them.
Read more
Teynham questions
Is Teynham within the area you cover?
Yes, Teynham is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Teynham station?
Yes, we work for landlords and letting agents. Just phone 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.
Can new sealant go over the old?
No, it will not last. It can look neat for a few weeks, but the new layer lifts away from the old one. Removing the old sealant completely is the only lasting way.
What do you need from me for a quote?
A short description and the location. If we need more, we’ll ask.
Which products do you use?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator and we’re fully insured too.
Is the new sealant paintable?
Silicone generally won’t take paint. Let us know beforehand, and we will use a paintable product where it suits.
Will the old sealant be removed?
Yes. Sealing over the old bead is the commonest cause of early failure, and it’s something we never do.