Kent · England
Window & door mastic in Newington, Kent
Mastic around window and door frames, sills and patio doors for Newington, backed by a one-year guarantee. Ask us for a quote.
- Gaps where the sill meets the wall
- Damp patches on the reveal after heavy rain
- Black, perished sealant on frames
About our window mastic in Newington
Around Newington we seal all kinds of frames: from uPVC casements to timber and aluminium, plus patio doors, French doors and sills. The sealant is chosen to suit the frame material and the wall. We work on timber windows & doors, aluminium frames and composite doors, and common reasons people get in touch are cold air getting in at the frame edge and gaps left after new windows were fitted.
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.
The work is covered for a year after we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.
- Location
- Newington (CT12, CT11, CT10)
- Region
- Kent
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How we quote for window mastic
Call for a quick quote. The main things that affect it are:
- Access and height
- The type of sealant required
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
The cost reflects the work involved, not guesswork. That’s why we ask about the job first.
Helping us quote
Before you ask for a quote, have a think about:
- Where the property is
- Whether it’s a home or a business
- Any access issues, like height or stairs
- The problem you’ve noticed
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you’re ready, call 0345 464 0079 or drop us an email.
What we can’t put right
New sealant cannot fix everything, and we’d rather say so up front. It won’t solve:
- Soft or decayed wood in the frame
- Penetrating damp from a failed cavity tray or render
- Draughts through the window seals rather than the frame
If in doubt, phone 0345 464 0079 or email us and we will say what we think before booking.
Joints and surfaces we work on
- Composite doors
- uPVC windows
- Aluminium frames
- Window sills
- Patio & French doors
- Timber windows & doors
More services for Newington
What we do, step by step
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a morning for a couple of windows and a door. In a smaller place like Newington, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
Preparing for the visit
- Let us know about stairs, lifts or work at height
- Mention if the joints have been sealed before
- Clear items away from the joints we are working on
Getting a quote
Want a quote for window mastic? Please call 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.
Advice
What the job involves on each surface
Aluminium frames
Aluminium needs a sealant that bonds to coated metal, and acetoxy silicones are not used, as they can attack some metals. We use a neutral-cure product.
Patio & French doors
Not every patio door leak is a mastic problem: blocked drain slots, worn brush seals and threshold details can let water in too. We check before we reseal.
Windows and doors in Newington
Newington is within about 2 miles of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. That is hard on the mastic around window and door frames, especially on the side facing the sea. With historic houses such as Quex Park (about 3.4 miles west) nearby, there’s older building stock in the area around Newington 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’s traditional sand mastic.
Homes close to St Christopher's Church include some older properties, and frames set in older brick or stone need a sealant that suits the wall as well as the frame. If you let a flat or house near Ramsgate station, renewing tired window mastic between tenants heads off draught and damp complaints.
Newington is about 1 mile north-west of Ramsgate, in Kent. Homes, rented property, offices and hotels in Newington is covered for window mastic. The work is guaranteed for a year. Our Kent coverage runs to 922 places, Newington among them. We also work in Chelmsford, around 47 miles away.
Every address in CT12, CT11 and CT10 is within our area for window mastic. If you need window mastic at a property on Gwyn Road, Haine Road and Leigh Road or a nearby road, our applicators can take on the job. Main roads around Newington include the A254 and A256, which makes travel easy. Nearby, we also carry out window mastic in Haine (1 mile north-west), Manston (1 mile west), Chilton (1 mile south), Westwood (1 mile north) and Flete (1 mile north-west). Within a short drive, we also cover Canterbury (14 miles west), Dover (15 miles south), Deal (9 miles south), Herne Bay (11 miles west), Walmer (10 miles south) and Wincheap (15 miles west).
Landmarks near Newington
We work in homes and buildings around St George's Boys School, The Derby Arms and The Royal Harbour Academy, among other places. Newington’s nearest station is Ramsgate station, about 0.7 miles south-east of the centre. Other landmarks nearby include Ramsgate Museum (1.3 miles south-east) and Ramsgate General Hospital (1.4 miles south-east). Not far away are Sandwich and Pegwell Bay.
Can I do it myself?
If you’re 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 fails, we can still redo it.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
When to call us in Newington
Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces didn’t grip properly, so it comes away long before its time.
Most people get in touch when they notice something like this:
- Cracked sealant at the sill ends
- Cracked or shrunken mastic around the frame
- Sealant in the wrong colour for the frame
- Mastic that is falling out in pieces
Managing a site like Ramsgate Arts Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
What your quote should include
- Whether you can choose the colour
- Whether all the old sealant comes out first
- What the quote includes, VAT included or not
- What insurance they hold
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Air rooms to keep condensation down around windows
- Don’t use solvent cleaners on the joint
- Keep timber frames painted
- Use gentle cleaners on frames and sealant
Timber frames need their paint kept up, because bare, wet timber moves more and pulls at the joint. Paint up to the joint, not over the silicone.
Leaks normally show up in wet, windy weather, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.
Newington questions
Is Newington within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
I let a flat near Ramsgate station. Can you help?
Yes. We work for landlords and letting agents as well as householders. Just ring 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
Can you reach windows above the ground floor?
Yes, if safe access is possible. Higher or awkward frames may need extra access, and we’ll confirm what’s needed.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator.
Will it make a mess?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Is the work guaranteed?
Yes, with our 12-month guarantee. Keeping drainage clear and checking the joints yearly helps them last.
Can you do several jobs on one visit?
Yes. More than one area can go on one quote.