Kent · England
Remedial sealant & repairs in Newington, Kent
We cover Newington for removing failed, mouldy or leaking sealant and putting it right. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Dark patches showing through the sealant
- Sealant peeling off a dusty or damp surface
- Products that weren’t meant for the joint
Keeping the joints in good condition
After the cure time, these simple habits help:
- Find out why the sealant failed first
- Deal with small splits early
- Use a soft cloth, not a scourer, on silicone
- Do not point over movement joints
Do not let anyone seal over it later. New silicone does not bond to old.
A failing joint rarely gets better on its own. Every shower or downpour sends more water through, into whatever is behind or below. Early action keeps it to a sealant job.
Remedial sealant for homes and businesses in Newington
Movement and expansion joints fail when the sealant can’t stretch. The old sealant comes out and backing goes in to control the depth, then a flexible sealant matched to the movement goes in. We work on expansion joints, botched or over-sealed joints and failed movement joints, and common reasons people get in touch are beads that never stuck properly and a shower that leaks however often it’s resealed.
Being in a small place like Newington makes no difference to the job itself: it just means planning the journey and access beforehand. Once we are there, the bathroom or kitchen gets the same care as anywhere else.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Where
- Newington (CT18, CT20, CT19)
- Region
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What we are called out for in Newington
Movement tears sealant that isn’t designed for it. A bath that flexes, a tray that rocks or a building joint that opens and closes will split a rigid or thin bead.
Look out for these signs:
- Over-sealed joints coming away
- Floor or wall movement joints that have failed
- Leaks that keep coming back after resealing
- Sealant that came away because the surface wasn’t prepared
For landlords with property near Folkestone West station, botched sealant from a previous quick fix is easier to strip out between tenants.
Before booking anyone
- What the cure time is
- Whether they seal over old material or remove it
- Whether VAT is included
- What insurance they hold
Bathrooms and kitchens in Newington
Newington is close to the coast. Coastal homes, holiday lets and guest houses can see heavy bathroom use in busy months, which wears sealant and grout out faster than in a quiet home. Hard water is the norm across most of the South East, so limescale builds up on sealant, grout and fittings.
If you live in an older home near Church of St Nicholas, bathrooms in older houses have often been refitted more than once, with sealant laid over sealant.
Newington is about 2 miles north-east of Hythe, in Kent. If you need remedial sealant in Newington, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We’re based in Crawley and cover Kent. Newington is one of 922 places in Kent where we work. There’s also a page for Chelmsford, about 52 miles away.
Our applicators cover all of CT18, CT20 and CT19 for remedial sealant and the streets around it. Local streets include School Lane, Newington Road and Boulevard D'erlanger. Other places close to Newington include Peene (1 mile north-east), Cheriton (1 mile east), Arpinge (1 mile north-east), Seabrook (1 mile south) and Etchinghill (2 miles north-west). We also work in nearby towns such as Ashford (11 miles west), Canterbury (13 miles north), Dover (9 miles east), Deal (15 miles north-east), Tower Hamlets (8 miles east) and Walmer (15 miles north-east).
What’s near Newington
Locally, jobs take us to homes and businesses close to The Britannia pub and the streets around them. The closest station to Newington is Folkestone West station, roughly 1.8 miles east of the centre. Nearby you’ll also find Royal Victoria Hospital (2.5 miles east) and Elham Valley Countryside Centre And Railway Museum (0.5 miles north). Open spaces near Newington include Tolsford Hill.
Can I do it myself?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. Everything old must be removed first.
What else we do in Newington
What happens on the day
Good joint work is mostly preparation, and we do not rush it. Every joint is cleaned and dried before new material goes in. All told, the work takes a few hours, depending on how many layers have to come out. Somewhere as small as Newington, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We protect the surfaces around the joint.
- Every layer of failed sealant is stripped out.
- The joint is degreased and checked for movement and leaks.
- Once dry, a suitable sealant is applied and tooled.
- We give you the cure time and explain what caused the failure.
Preparing for the visit
- Mention if the joints have been sealed before
- Where the joints are inside, avoid wetting them before we arrive
- Move anything stored near the joints
Get a quote
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.
Read more
How the job changes by surface
Movement & expansion joints
Some movement joints have been filled with mortar or grout. We rake that out where it can be removed and seal with a flexible product.
Leaking trays & enclosures
Repeat shower leaks often come from a tray that flexes or an enclosure sealed in the wrong place. Both are checked before we reseal.
What affects the quote in Newington
The quote reflects the job in front of us. We look at:
- Mould in or behind the old joints
- The number of rooms or windows
- Whether old sealant or filler has to be cut out
- When we can work, for business premises
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
What we need to know
What to tell us when you ask for a quote:
- Whether it’s a home or a business
- Access, such as stairs, a lift or height
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
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.
FAQs for Newington
Is Newington within the area you cover?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you help a landlord with a rental near Folkestone West station?
Yes. We work for landlords and letting agents as well as homeowners. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Do you offer different sealant colours?
In most cases you can choose. We’ll tell you which colours the right product comes in and agree one before work begins.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Where are you based?
Mr Mastic is based in Crawley. Our applicators cover Newington, along with the rest of our area.
How do I get a quote for remedial sealant in Newington?
There’s no set price, as it depends on the job: its size, the old material, access and the product needed. You’ll get a clear quote before we start.
Can you fix a reseal that hasn’t worked?
Yes. We’ll take all the sealant out, look for why it failed and reseal it properly.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Landlords, agents and businesses in Newington
We work for letting agents and landlords as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements.