Kent · England
Lydd-on-Sea Window Mastic
Mastic around window and door frames, sills and patio doors for homes and businesses in Lydd-on-Sea and across Kent. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Gaps between the frame and the inside reveal
- Leaking joints at the ends of sills
- Rushed sealant from a window installation
Window mastic in Lydd-on-Sea: local notes
Lydd-on-Sea is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In the older streets around St Peter's, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. Schools such as Greatstone Primary School are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Lydd-on-Sea is about 10 miles south-west of Hythe, in Kent. Across the TN29 area, we can carry out window mastic at your property. Lydd-on-Sea is one of 922 towns and villages in Kent we cover for window mastic. For nearby work, see our Brighton page, about 48 miles away.
Every address in TN29 and TN28 is covered for window mastic. Local streets include Taylor Road, Lade Fort Crescent and Williamson Road, and we cover them all. We also cover Greatstone-on-Sea (2 miles north), Dungeness (2 miles south), Littlestone-on-Sea (2 miles north), Lydd (2 miles west) and New Romney (3 miles north). We also work in nearby towns such as Ashford (14 miles north), Folkestone (13 miles north-east), Hythe (10 miles north-east), Hawkinge (14 miles north-east), Tenterden (15 miles north-west) and Cheriton (12 miles north-east).
Around Lydd-on-Sea
Nearby you will also find Romney 'castle' (4.2 miles north-west) and Lydd Town Museum (2.5 miles west). For a walk, there’s Dungeness National and Burnthouse Pen.
Window mastic in Lydd-on-Sea, done properly
Around Lydd-on-Sea we seal all kinds of frames: from uPVC casements to timber and aluminium, along with patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. We work on patio & French doors, aluminium frames and window sills, and the jobs we see most are leaking joints at the ends of sills and white mastic on grey or black frames.
In a village or hamlet like Lydd-on-Sea, older cottages and farmhouses often have timber windows set in stone or brick. Not every older frame suits a modern silicone bead, so the sealant has to be chosen to suit the building.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Lydd-on-Sea (TN29, TN28)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quotes
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Should I try it myself first?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
How to look after the new joints
After the cure time, these simple habits help:
- Look round the frames every year or so
- Clean frames with a soft cloth and soapy water
- Keep jet washers away from the mastic
- Wipe condensation off the frames
On timber frames, keep the paintwork in good order, since wood that gets wet swells and shrinks more. Keep paint off the silicone itself.
Wet, windy weather is when failed mastic shows itself, but sealant goes on best when frames and walls are dry. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
FAQs for Lydd-on-Sea
Will you come out to Lydd-on-Sea?
Yes. Lydd-on-Sea is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you cover Lydd-on-Sea for window mastic?
Yes. Our work covers London and the South East, and Lydd-on-Sea is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Can you do the inside joint as well?
Yes. Draughts often come through the inside gap too, so it can be worth sealing both.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access.
Can I do it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Can landlords and businesses book you?
Yes. We work in homes, commercial premises and hotels, and we’re fully insured.
What do you put in the joint?
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.
Where is Mr Mastic based?
We’re a Crawley-based firm. We work across South East England, London and Scotland.
What the job involves on each surface
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. It comes out, deep gaps get backing rod and the joint is resealed.
Aluminium frames
Coated aluminium needs a compatible sealant and we avoid acetoxy silicones, which can react with some metals. Neutral-cure sealant is the safe choice.
Why deal with it now?
Choosing the product is half the job. Interior caulk and bathroom silicone aren’t made for exterior frame joints. A low-modulus exterior sealant keeps its stretch through hot and cold weather. Around Lydd-on-Sea, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What you get with us
- Quality sealants from Arbo and Everbuild
- Anti-fungal silicone where joints get wet
- 180+ five-star Google reviews
- White, clear, grey or coloured to suit, where the product allows
See what affects the cost and customer reviews.
Honest limits
Honest advice matters more to us than a booking, so here’s what sealant cannot fix:
- A frame that has rotted at the joint
- Worn gaskets, brush seals or a door that has dropped
- Damp coming through the wall itself rather than the frame joint
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Surfaces we seal
- Composite doors
- Patio & French doors
- Aluminium frames
- uPVC windows
- Window sills
- Timber windows & doors
What happens on the day
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours for a few frames, or a day or more for a whole house, and the area is left clean. For a village or hamlet like Lydd-on-Sea, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First, we go round the frames with you and agree the list.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Keep children and pets away from the work area
- Tell us about any previous sealing or DIY attempts
Get a quote
Want a quote for window mastic? Please call 0345 464 0079 or send us an email and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Advice
For landlords and businesses
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
If you manage several properties in or around Lydd-on-Sea, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.