Kent · England
Window Mastic in Newingreen
We cover Newingreen for mastic around window and door frames, sills and patio doors. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Cold air getting in at the frame edge
- Gaps left after new windows were fitted
- White mastic on grey or black frames
Window mastic for homes and businesses in Newingreen
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that cannot move properly, so deep gaps get backing rod first. The sealant then grips the two sides it should. We work on timber windows & doors, window sills and patio & French doors, and common reasons people get in touch are white mastic on grey or black frames and water coming in at the bottom corners of a door.
Outdoor sealant needs dry, clean surfaces, so work on frames around Newingreen is planned for dry weather. Let us know about access to all the frames, upstairs ones included.
All our work comes with our 12-month guarantee, wherever you are in Kent.

- Where
- Newingreen (CT21)
- Region
- Kent
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Landlord and commercial work in Newingreen
Letting agents and landlords in Newingreen can book us as well as householders. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Windows and doors in Newingreen
Newingreen is within about 3 miles of 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. With historic houses such as Westenhanger Castle (about 0.5 miles north) nearby, there’s older building stock in the area around Newingreen as well as newer homes. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
In the older streets around Pedlinge Chapel, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. For landlords with property near Westenhanger station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first. Managing a site like Lympne Church of England Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Newingreen is about 2 miles north-west of Hythe, in Kent. Whether you are in the middle of Newingreen or further out, we cover window mastic for every kind of property, from flats and houses to offices and hotels. Across Kent, we cover 922 places, Newingreen among them. You can also see our page for Chelmsford, roughly 51 miles from Newingreen.
Postcode districts we cover here for window mastic: CT21. Whether your property is on Stone Street and Ashford Road or anywhere close by, our applicators can take on the job. We also cover Westenhanger (1 mile north), Berwick (1 mile south-west), Lympne (1 mile south-west), Pedlinge (1 mile south-east) and Sandling (1 mile east). Within a short drive, we also cover Ashford (8 miles north-west), Canterbury (13 miles north), Dover (12 miles east), Folkestone (6 miles east), Tower Hamlets (12 miles east) and Hawkinge (6 miles east).
Landmarks near Newingreen
In Newingreen, that means homes and buildings near The Royal Oak Public House, Brockhill Park Performing Arts College and Sandling Park and the streets around them. The nearest railway station is Westenhanger station, roughly 0.6 miles north. Other landmarks nearby include Lympne Castle (1.2 miles south-west) and Royal Victoria Hospital (5.9 miles east). Open spaces near Newingreen include Tolsford Hill and Hatch Park.
FAQs for Newingreen
Do you work for landlords with property near Westenhanger station?
Yes. We work for landlords and letting agents as well as householders. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Does the coastal weather in Newingreen affect outside sealant?
Near the coast, wind-driven rain and, nearer the shore, salt air make outside sealant work harder. The right product, a clean joint and the right depth all help it cope.
How long does it take to reseal the windows on a house?
That depends on the number of frames, how they’re reached and the state of the old mastic. You’ll know the timing when we quote.
Can you quote for more than one area?
Yes. More than one area can go on one quote.
Are you fully insured?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
Do you cover Newingreen?
We do. Newingreen is part of the area we cover, and the service is the same as everywhere else.
Which products do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We will tell you what we’re using and why.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme, which is run for the Arbo sealant brand.
What affects the quote in Newingreen
Your quote is based on your job. We look at:
- The product the joint needs
- The amount of work
- How many rooms, windows or areas are involved
- Whether the work is at height
What you pay reflects the work, not guesswork. That’s why we ask about the job first.
Asking for a quote
When you contact us, it’s useful to know:
- What’s wrong with the joints now
- If it’s domestic, commercial or a hotel
- A few pictures by email, if you can
- Roughly how big the job is
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that is easy.
What sealant work can’t fix
A few problems are outside what sealant work can do:
- Damp coming through the wall itself rather than the frame joint
- Condensation trapped between the panes
- Draughts through the window seals rather than the frame
If you are not sure, just call 0345 464 0079 or send us an email and we will give you a straight answer before booking.
What we seal
- Patio & French doors
- Composite doors
- uPVC windows
- Timber windows & doors
- Aluminium frames
- Window sills
Looking after it afterwards
Looking after new joints is easy, and it makes a real difference:
- Wash the frames with mild soapy water
- Keep drainage slots and sill grooves clear
- Avoid blasting the frames with a pressure washer
- Walk round the house once a year and look at the joints
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.
Leaks generally show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
How it works
At the end, we look at the finished work together and tell you how long to leave it. The work normally takes a few hours for a handful of frames, longer for a whole house, depending on how much there is to do. In a small place like Newingreen, access is normally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Finally we tidy up and check each joint.
Getting ready for the visit
- Clear items away from the joints we are working on
- Try not to wet indoor joints just before the visit
- Let us know about parking restrictions
Ask for a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.
Advice
Towns and villages near Newingreen
What else we do in Newingreen
How the job changes by surface
Composite doors
Composite doors are normally hung in an uPVC-type frame, so its perimeter joint is sealed much like a window. The bead is colour-matched to the frame.
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A neat, narrow bead in a colour to match suits the frame.
Leave it or put it right?
Working on frames from a ladder with a sealant gun is not easy, especially on upper floors. We cut out properly, back deep gaps and tool every joint neatly, using a product chosen for the frame and wall. Older cottages and farmhouses around Newingreen can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit is generally more efficient than separate visits. We’ll give you a clear quote for the lot.
What you get with us
- We leave the area clean and tidy
- 180+ five-star Google reviews
- Anti-fungal silicone where joints get wet
- Any old sealant cut out fully, not covered over
Read how sealant jobs are priced and customer reviews.
