Kent · England
Window & door mastic in Broad Oak, Kent
Specialist window mastic for Broad Oak: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Rain getting in at the frame or under the sill
- Whistling draughts around closed windows
- Mastic that’s falling out in pieces
About our window mastic in Broad Oak
Around Broad Oak we seal all kinds of frames: from uPVC casements to timber and aluminium, plus patio doors, French doors and sills. Each gets a sealant chosen for the frame and the wall it meets. Common call-outs are for whistling draughts around closed windows and damp patches on the reveal after heavy rain, across window sills, patio & French doors and timber windows & doors.
Around Broad Oak, 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.
Each job carries a 12-month guarantee, large or small.

- Where
- Broad Oak (CT2)
- Region
- Kent
- Cover
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we are called out for in Broad Oak
Every frame moves through the day. Sun on a frame makes it expand, and it contracts again overnight, while the masonry beside it stays put. A sealant that cannot keep up eventually tears.
These are the problems we’re asked about most:
- Gaps between the frame and the inside reveal
- White mastic on grey or black frames
- Untidy mastic left by window fitters
- Cold air getting in at the frame edge
In the older streets around St Nicholas' Church, the joint between an old wall and a newer frame is generally the first place rain gets in.
What to look for in a quote
- Whether you can choose the colour
- Whether they seal over old material or remove it
- How hidden problems are handled
- How long the guarantee is
Broad Oak questions
Can you help a landlord with a rental near Sturry station?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.
Will you come out to Broad Oak?
Yes. Broad Oak 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.
Where is Mr Mastic based?
We’re a Crawley-based firm. We work across South East England, London and Scotland.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We will tell you what we are using and why.
Is the new sealant paintable?
Silicone generally won’t take paint. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
Do the sealants smell?
There can be a smell while the sealant cures, which fades as it sets. Ventilation helps.
Do I need to be at home?
Access is agreed with you when the job is booked. Indoors, that usually means someone at home.
Can you quote for more than one area?
Yes, we can. More than one area can be quoted together.
What window mastic looks like in Broad Oak
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.
Rented homes near Sturry station change hands often, and renewing tired window mastic between tenants heads off draught and damp complaints. For site and facilities teams at buildings such as Sturry Church of England Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Broad Oak is about 2 miles north-east of Canterbury, in Kent. If you need window mastic in Broad Oak, please phone 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Kent, Broad Oak included. Broad Oak is one of 922 towns and villages in Kent where we work for window mastic. Chelmsford is on our list too, around 40 miles away.
Jobs for window mastic in CT2 is quoted and booked the same way as anywhere else. Whether your property is on Porty Road, Madeleine Road and Dragon Way or anywhere close by, we can help. Neighbouring places we cover for window mastic include Sturry (1 mile east), Calcott (1 mile north), Westbere (2 miles east), Hicks Forstal (2 miles north-east) and Hersden (2 miles east). Further out, we also cover Margate (13 miles north-east), Dover (14 miles south-east), Ramsgate (13 miles east), Broadstairs (14 miles east), Whitstable (5 miles north-west) and Deal (14 miles south-east).
Local landmarks in Broad Oak
We work in homes and buildings around Chequer's Wood and Old Park, Spires Academy and Royal Oak Public House. Broad Oak’s nearest station is Sturry station, roughly 0.7 miles south-east. Other landmarks nearby include St Martins Hospital (2.2 miles south) and Whitefriars Shopping Centre (2.6 miles south-west). Not far away are West Blean and Thornden Woods.
How we quote for window mastic
Jobs vary more than people expect. The main factors:
- Any working-time requirements on site
- The number and length of the joints
- The old material and how stubborn it is
- Access and height
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- What’s wrong with the joints now
- Where the job is, and your postcode
- Any previous sealing or DIY work
- Any access issues, like height or stairs
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.
Landlord and commercial work in Broad Oak
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. We can quote for more than one property at once.
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.
Nearby places to Broad Oak
Also in Broad Oak
How the visit works
We work through the job in order: protection first, then preparation, sealing and a tidy-up. Typically it takes most of a day for a typical house, less for a few frames. Somewhere like Broad Oak needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Deep gaps get closed-cell backing rod to set the depth.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- We tool each bead neatly and check every joint is closed.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Keep pets and children clear of the area while we work
- Let us know about earlier repairs to the joints
Ask for a quote
Want a quote for window mastic? Please phone 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and give you a clear quote before any work starts.
Advice
Why deal with it now?
Failed mastic is not a reason to replace sound windows. Where the frames are sound, new mastic normally deals with draughts and leaks at the edges. Problems with the glass or gaskets are for a window company, and we will say so. Older cottages and farmhouses around Broad Oak can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.
Why book with us
- Rated 4.9 stars on Google
- White, clear, grey or coloured to suit, where the product allows
- A sealant colour to suit the surroundings
- More than 20 years in sealant work
Take a look at what affects the cost or what customers say.
Aftercare tips
To keep the joints looking good and working properly:
- Wash the frames with mild soapy water
- Keep paint off silicone joints
- Air rooms to keep condensation down around windows
- Clear any debris from frame drain holes
Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.
Look out for the warning signs: split or missing mastic, gaps, damp patches inside or black mould on the reveal. Any of these is worth a call.
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
