Kent · England
Window & door mastic in Lamberhurst, Kent
Window mastic in Lamberhurst from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Whistling draughts around closed windows
- Cracked internal joints between frame and plaster
- Black, perished sealant on frames
Your questions about window mastic in Lamberhurst
Can you help a landlord with a rental near Wadhurst station?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Do you cover smaller places like Lamberhurst?
Yes, Lamberhurst is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Is it OK to seal over old sealant?
No. Fresh sealant does not stick to old sealant, and it traps any mould or water underneath. We remove it all first.
Which products do you use?
It depends on the joint: 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?
Mr Mastic is based in Crawley. Our applicators cover Lamberhurst.
Does the work come with a guarantee?
Yes. All our work carries a 12-month guarantee, and we’re ARBOMaster approved applicators.
Do you take out the old sealant first?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Window mastic in Lamberhurst, done properly
A window frame and the wall around it expand and shrink at different rates. Plastic and aluminium frames move with the temperature, while masonry stays fairly still. So the sealant has to stretch and recover, which is why we use a low-modulus product. Common call-outs are for mastic that’s falling out in pieces and gaps where the sill meets the wall, on uPVC windows, window sills and aluminium frames.
Mastic can only go onto a dry, clean joint, so window work in Lamberhurst is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Whatever the size of the job, you get the same one-year guarantee in Lamberhurst and across Kent.
- Place
- Lamberhurst (TN3)
- Region
- Kent
- Cover
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Honest limits
Before you book, it’s worth knowing the limits:
- Damp coming through the wall itself rather than the frame joint
- Broken hinges, locks or handles
- Worn gaskets, brush seals or a door that has dropped
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Window sills
- Aluminium frames
- Patio & French doors
- Composite doors
- Timber windows & doors
- uPVC windows
How the job changes by surface
Composite doors
Composite doors are normally hung in an uPVC-type frame, and the joint around it is sealed like a window. We match the colour to the frame.
Window sills
Stone and concrete sills have their own joints, including the one between the sill and the frame above. Those are sealed with a product suited to stone or concrete.
What affects the quote in Lamberhurst
There’s no set price list. What we look at:
- Working hours on commercial sites
- Mould in or behind the old joints
- Whether the work is at height
- How much there is to do
What it costs depends on how much there is to do, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
Asking for a quote
Before you ask for a quote, have a think about:
- If someone has resealed it before
- The type of property
- Roughly how big the job is
- Access, such as stairs, a lift or height
We quote each job on its own, so the first step is telling us about yours. Just call 0345 464 0079 or email us with the details and send pictures if you have them.
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
How to look after the new joints
Joint life depends on how it’s used and looked after. We suggest:
- Clean frames with a soft cloth and soapy water
- Repaint timber before it’s bare
- Avoid blasting the frames with a pressure washer
- Do not paint over the silicone
Have a look at the joints once a year, ideally after winter. Cracks and lifting edges are easy to spot early.
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. Any of these is worth a call.
What we do, step by step
There’s no need to move everything out, just the space around the work. Everything nearby is protected, and the work takes most of a day for a typical house, less for a few frames for a typical job. Somewhere like Lamberhurst needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Where gaps are deep, backing rod goes in first.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Finally we tidy up and check each joint.
How to prepare
- Let us know about parking restrictions
- Tell us about any water getting in
- Mention any tricky access
How to get a quote
Want a quote for window mastic? Please call 0345 464 0079 or drop 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
Window mastic in Lamberhurst: local notes
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Historic houses like Scotney Castle (about 0.9 miles south-east) are a reminder that the area around Lamberhurst has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
If you let a flat or house near Wadhurst station, renewing tired window mastic between tenants heads off draught and damp complaints. Homes close to Church of St Mary include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Lamberhurst is about 6 miles south-east of Royal Tunbridge Wells, in Kent. From the centre of Lamberhurst to the outskirts, we cover window mastic for every kind of property. Our Kent coverage runs to 922 places, Lamberhurst among them. There’s also a page for Crawley, roughly 25 miles from Lamberhurst.
Jobs for window mastic in TN3 works the same way as everywhere else we cover. Whether your property is on High Street, Church Road and Clivedon Court or anywhere close by, we can help. Neighbouring places we cover for window mastic include Lamberhurst Quarter (2 miles north-west), Key's Green (3 miles north-west), Petteridge (3 miles north), Brenchley (4 miles north) and Matfield (4 miles north). We also work in nearby towns such as Maidstone (13 miles north-east), Sevenoaks (15 miles north-west), Royal Tunbridge Wells (6 miles north-west), Tonbridge (8 miles north-west), Kings Hill (12 miles north) and Foley Park (14 miles north-east).
Around Lamberhurst
Typical jobs here are in homes near Horse And Groom Public House, among other places. The closest station to Lamberhurst is Wadhurst station, roughly 3.9 miles south-west of the centre. Other landmarks nearby include Ticehurst House Hospital (3.5 miles south) and Old Scotney Castle (1 mile south-east). The countryside around Lamberhurst includes Bewl Water.
Landlords, agents and businesses in Lamberhurst
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.