Kent · England
New-build mastic & snagging in Dean Street, Kent
Plot mastic for developers and snagging failed sealant in new homes for householders, landlords and businesses in Dean Street. Fully insured, ARBOMaster approved and guaranteed for a year.
- Sealant that never bonded to the surface
- Internal frame sealant that has split
- Worktop and upstand sealant coming away
New build mastic in Dean Street, done properly
Some new-home owners let the house settle before resealing. For small cosmetic gaps, that’s reasonable, but a failed shower or bath seal shouldn’t wait. Common call-outs are for leaking shower tray seals in a new home and sealant applied over dusty or wet surfaces, across skirting & floors, show homes and kitchens.
For a small place like Dean Street, the journey and access are planned in advance, and the work itself is the same as on any site.
Each job carries a 12-month guarantee, large or small.
- Place
- Dean Street (ME15)
- Wider area
- Kent
- Cover
- A year, on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

When it is not the sealant
In fairness, some problems need a different trade:
- Movement caused by a poorly fitted tray or bath
- Settlement cracks that need a surveyor
- Deciding who is responsible under a builder’s warranty
If you are not sure, just ring 0345 464 0079 or send us an email and we will give you a straight answer before booking.
What we seal
- Windows & doors
- Plot handovers
- Kitchens
- Show homes
- Skirting & floors
- Bathrooms & en suites
Looking after it afterwards
To keep the joints looking good and working properly:
- Get a leaking seal dealt with straight away
- Use the extractor fan every time you shower
- Keep photos and emails about snagging items
- Wipe joints with warm soapy water
Watch the joints as the house settles. Hairline gaps can open as timber and plaster dry and can be resealed later.
Early snagging is easier snagging. Left alone, a small crack can become a leak.
Dean Street: your questions answered
Is Dean Street in your area for new build mastic?
Yes. We work across London and the South East, and Dean Street is part of that. Just call 0345 464 0079 or email us with a few details of the job.
Will you come out to Dean Street?
Yes, Dean Street is covered. Our work covers London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do the sealants smell?
Some sealants have a smell while they cure, which fades as it sets. Ventilation helps.
Why has my new-build shower seal failed already?
Lots of new homes see sealant crack early, because the house is drying and settling. Rushed application on dusty surfaces makes it worse.
Can you quote for more than one area?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Do you have insurance?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
What does new build mastic cost?
Size, access and the old material all affect the cost. Ask us for a quote and we will talk you through it.
Can you reseal over the builder’s sealant?
No. The old sealant is cut out fully, the joint cleaned and primed where needed, before resealing.
Landlord and commercial work in Dean Street
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
New homes and floors in Dean Street
Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For new homes near East Farleigh station, it’s worth checking the sealant early, while snags are still fresh. Around Dean Street, as everywhere, new build mastic is only as good as the preparation behind it.
Dean Street is about 2 miles south-west of Maidstone, in Kent. We provide new build mastic to homeowners, landlords and businesses in Dean Street. Across Kent, we cover 922 places, Dean Street among them. We also work in London, around 31 miles away.
All of ME15 is within our area for new build mastic, from the main roads to the quietest streets. If you need new build mastic at a property on Forge Lane and Dean Street or a nearby road, our applicators can take on the job. Nearby, we also carry out new build mastic in East Farleigh (1 mile west), Coxheath (1 mile south), Fant (1 mile north), Kettle Corner (1 mile west) and Farleigh Green (1 mile west). Further out, we also cover Sittingbourne (12 miles north-east), Sevenoaks (14 miles west), Royal Tunbridge Wells (13 miles south-west), Gravesend (13 miles north), Tonbridge (10 miles west) and Northfleet (14 miles north-west).
What’s near Dean Street
We work in homes and buildings around Walnut Tree pub, St Augustine Academy and Quarry Wood and the streets around them. The nearest railway station is East Farleigh station, roughly 0.6 miles north-west of the centre. Nearby you’ll also find Allington Castle (3 miles north) and Fremlin Walk (2 miles north-east). Open spaces near Dean Street include Boxley Hills.
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
How the visit works
There’s no need to move everything out, just the space around the work. We protect the rest, and the job takes a few hours for most snagging lists, longer for a run of plots for a typical job. For a village or hamlet like Dean Street, the journey is planned in advance: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at why each joint failed, including any movement.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- The finished joints are checked and the cure times given.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Tell us about access, such as stairs, a lift or high-level joints
- For indoor joints, keep the area dry beforehand if you can
Get a quote
If you’re in Dean Street and need new build mastic, phone 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Advice
How we quote for new build mastic
For a quick quote, just ask. What matters most is:
- The product the joint needs
- Working hours on commercial sites
- Whether there’s mould to deal with
- Whether old sealant or filler has to be cut out
The cost depends on the size of the job, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
Asking for a quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- A few photos by email, if you can
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
- How we’d reach the joints
Every job is quoted individually, so start by telling us what you need. Just phone 0345 464 0079 or drop us an email with the details.
Towns and villages near Dean Street
Other services in Dean Street
How the job changes by surface
Windows and doors
Draughts around new frames are often a sealant gap. We look at the joints and reseal where needed.
Plot handovers
Developers can send the plot schedule and specification for a quote. Sealant work across the plot is covered to the agreed spec.
