Kent · England
New Build Mastic in Lower Cox Street
New-build sealant joints in Lower Cox Street need attention? We cut out the old, prepare the joints and apply the right sealant, with a one-year guarantee.
- Leaking shower tray seals in a new home
- Skirting joints opening in the first winter
- Kitchen sealant that has pulled off the wall
Signs you need new build mastic in Lower Cox Street
Sealant applied onto damp surfaces does not bond well. Site programmes do not always leave time for joints to dry first.
Most people get in touch after spotting one of these:
- Internal frame sealant that has split
- Cracked caulk along new skirting
- Cracks appearing as a new home settles
- New-build shower sealant that has already split
If you’ve bought a new home near Bearsted station, the sealant around baths, showers and frames is worth checking in the first year or two.
Before you book anyone
- What the quote includes, VAT included or not
- Whether they seal over old material or remove it
- What guarantee comes with the work
- How the joint is cleaned and prepared
New build mastic in Lower Cox Street
Developers send us the plot schedule and we work through it. We seal bathrooms, kitchens, windows, doors and skirting so plots are ready to hand over. We work on show homes, windows & doors and skirting & floors, and people most often call us about sealant that never bonded to the surface and untidy sealant flagged on a snagging list.
Work in a small place like Lower Cox Street just needs the journey and access planning, and the work itself is the same as on any site.
A one-year guarantee comes as standard, so you are not left on your own once the job is done.

- Location
- Lower Cox Street (ME14)
- Wider area
- Kent
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Surface by surface
Kitchens
Sink joints are wet all the time. A kitchen sealant goes in there suited to the job.
Bathrooms and en suites
En suite seals are easy to miss on a snagging list until they leak. Resealing properly keeps water where it belongs.
How to look after the new joints
A little care helps the new joints last. We recommend:
- Photograph failed sealant before it’s redone
- Wipe joints with warm soapy water
- Use the extractor fan every time you shower
- Report sealant problems to your builder during the snagging period
Watch the joints as the house settles. Small gaps can appear as the house dries and can be resealed later.
Mould takes hold quickly in sealant that has gaps or lifted edges. Resealing before mould gets in saves a harder job later.
Nearby places to Lower Cox Street
Also in Lower Cox Street
New build mastic around Lower Cox Street
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In and around Lower Cox Street, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Lower Cox Street is about 4 miles south of Gillingham, in Kent. Jobs in Lower Cox Street get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. We cover 922 towns and villages across Kent, large and small. We also work in Chelmsford, about 29 miles from Lower Cox Street.
Work in ME14 works the same way as everywhere else we cover. We also cover the places around Lower Cox Street: Scragged Oak (1 mile north-west), Kemsley Street (1 mile north-west), Bredhurst (1 mile north-west), Dunn Street (1 mile north-west) and Lidsing (2 miles north-west). Within a short drive, we also cover Maidstone (5 miles south-west), Sittingbourne (6 miles east), Gravesend (12 miles north-west), Faversham (13 miles east), Northfleet (13 miles north-west) and Minster (11 miles north-east).
Local landmarks in Lower Cox Street
We work in homes and buildings around White Horse Wood, among other places. The nearest railway station is Bearsted station, roughly 3.1 miles south. Nearby you’ll also find Allington Castle (4.1 miles south-west) and KIMS hospital (2.8 miles south-west). The countryside around Lower Cox Street includes Burham Down and Detling Hill.
What happens on the day
Every visit runs the same way: we check the joints, protect the area around them, carry out the job and clear up. It generally takes a few hours in a single home. Somewhere as small as Lower Cox Street, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- First we work through your snagging list or plot schedule with you.
- Failed or untidy sealant is cut out completely.
- Surfaces are cleaned of building dust and primed where needed.
- New sealant suited to each joint is applied and tooled neatly.
- We check every joint and tell you how long each needs to cure.
How to prepare
- Keep pets and children clear of the area while we work
- On commercial sites, let us know about site rules
- Let us know about parking restrictions
Getting a quote
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or email us and describe the job, and photos are welcome.
Related advice
Questions from Lower Cox Street
Is Lower Cox Street within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Can you help a landlord with a rental near Bearsted station?
Yes, rental work is part of what we do. You can call 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Are you insured?
Yes. We’re fully insured, and we have been doing sealant work for more than 20 years.
Can you match the sealant colour to my new kitchen or bathroom?
It depends on the joint: white or clear for most sanitary joints, colours for worktops, floors and frames. We will agree it with you first.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Should I try DIY first?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Can I add another job to the visit?
Of course. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Does someone need to be in?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Quotes for new build mastic in Lower Cox Street
The price is agreed before any work begins. It’s based on:
- When we can work, for business premises
- How easy the joints are to reach
- The number and length of the joints
- The type of sealant required
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
What we need to know
Photos help, but a description is a good start. Please mention:
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
- If someone has resealed it before
- How we’d reach the joints
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or drop us an email.
For landlords and businesses
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
What sealant work can’t fix
A few problems are outside what sealant work can do:
- Settlement cracks that need a surveyor
- Deciding who is responsible under a builder’s warranty
- Leaking fittings rather than failed sealant
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think.
Where we work in Lower Cox Street
- Plot handovers
- Bathrooms & en suites
- Skirting & floors
- Windows & doors
- Kitchens
- Show homes
