Kent · England
Window & door mastic in Newington, Kent
Window mastic in Newington from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Leaking joints at the ends of sills
- Draughts coming in around windows and doors
- Water coming in at the bottom corners of a door
Window mastic in Newington, done properly
Some gaps around frames are far deeper than they look. Packing it solid with sealant gives a joint that can’t flex, so deep gaps get backing rod first. The sealant then grips the two sides it should. We work on window sills, patio & French doors and timber windows & doors, and common reasons people get in touch are water coming in at the bottom corners of a door and mastic that has split away from the wall.
Homes around Newington range from older properties to newer houses, and their windows range just as widely. Each frame material needs the right sealant against the right wall.
Each job carries a 12-month guarantee.
- Place
- Newington (ME9)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What affects the quote in Newington
There’s no set price list, because jobs vary so much. The quote depends on:
- How many rooms, windows or areas are involved
- Whether the work is at height
- The size of the job
- When we can work, for business premises
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- How many joints, rooms or windows are involved
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
- How we’d reach the joints
Want a quote for window mastic? Please ring 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.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Leave it or put it right?
Working on frames from a ladder with a sealant gun isn’t easy, especially on upper floors. We cut out properly, back deep gaps and tool every joint neatly, in a sealant suited to the wall. Around Newington, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you are unsure, phone 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
What you get with us
- Any old sealant cut out fully, not covered over
- White, clear, grey or coloured to suit, where the product allows
- 4.9 on Google from 180+ five-star reviews
- We agree the colour with you first
See our cost guide or our reviews.
Aftercare tips
A little care helps the new joints last. Our advice:
- Keep solvents and bleach off the sealant
- Check the mastic once a year
- Keep jet washers away from the mastic
- Air rooms to keep condensation down around windows
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: 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.
Newington questions
Will you come out to Newington?
Yes, Newington is covered. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you help a landlord with a rental near Newington station?
Yes, we work for letting agents and landlords. Just call 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Where do you work from?
Our base is Crawley, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Does the work come with a guarantee?
Yes. Our 12-month guarantee covers every job, inside or out.
Can you seal the gap between the frame and the plaster indoors?
Yes. Draughts often come through the inside gap too, so sealing both is often worthwhile.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We will tell you what we’re using and why.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
What does window mastic cost?
Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.
Newington homes and the weather
Newington 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. 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.
Rented homes near Newington station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. For site and facilities teams at buildings such as Newington Church of England Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Newington is about 3 miles west of Sittingbourne, in Kent. From the centre of Newington to the outskirts, window mastic is available for homes and businesses alike. Newington is one of 922 towns and villages in Kent where we work. For nearby work, see our Chelmsford page.
Here we cover the ME9 postcode area for window mastic. We cover properties on Station Road, High Street and London Road and the roads around them. We also cover Breach (1 mile north-west), Keycol (1 mile east), Lower Hartlip (1 mile west), Danaway (1 mile south) and Chestnut Street (1 mile south-east). We also work in nearby towns such as Maidstone (8 miles south-west), Sittingbourne (3 miles east), Gravesend (14 miles north-west), Faversham (10 miles east), Northfleet (15 miles west) and Minster (7 miles north-east).
Near you in Newington
In Newington, that means homes and buildings near The Wheatsheaf pub and Leigh Academy Rainham, among other places. There’s a railway station in Newington itself: Newington station. Well-known places in the area include Medway Maritime Hospital (5.7 miles west) and Bayford Court (3.4 miles east). The countryside around Newington includes Bishop Saltings.
Landlords, agents and businesses in Newington
If you manage several properties in or around Newington, several properties can go on one quote. Just tell us the addresses and what each one needs.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Do you need window mastic in Newington?
A lot of older mastic was never designed to stay flexible. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
Common reasons people contact us include:
- Rain getting in at the frame or under the sill
- Gaps where the sill meets the wall
- Rushed sealant from a window installation
- Cold air getting in at the frame edge
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.
Comparing quotes
- How hidden problems are handled
- When the joint can take water or movement
- What the quote includes, VAT included or not
- Is the old sealant removed completely?
Towns and villages near Newington
More services for Newington
How it works
We bring everything the job needs with us. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours for a handful of frames, longer for a whole house. Parking around Newington is normally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- Each frame is looked over and we agree which ones need resealing.
- 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.
Getting ready for the visit
- Move anything stored near the joints
- Tell us if parking is tricky
- Let us know about earlier repairs to the joints
How to get a quote
If you’re in Newington and need window mastic, ring 0345 464 0079 or email us. Tell us what the problem is and where, and we’ll agree the price before any work begins.