Kent · England
New-build mastic & snagging in Radfall, Kent
Plot mastic for developers and snagging failed sealant in new homes for Radfall, backed by a one-year guarantee. Ask us for a quote.
- Gaps between new skirting and floors
- Gaps opening as the house dries out and settles
- Worktop and upstand sealant coming away
Your questions about new build mastic in Radfall
Can you do new build mastic in Radfall?
Yes. Our work covers London and the South East, and Radfall is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we will give you a clear price.
Can you help a landlord with a rental near Chestfield & Swalecliffe station?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
How long does new build mastic take?
As a guide, most jobs take a few hours for most snagging lists, longer for a run of plots. Bigger jobs take longer, and we’ll tell you how long to expect.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected, and we clear up when we are done.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Where is Mr Mastic based?
We work from Crawley. We cover Radfall and the rest of Kent.
What colour sealant will you use?
White and clear are the most common, but sealant comes in other colours too. We match the colour to the finish before we begin.
Is it normal for sealant to crack in a new home?
It’s common, and there are usually two reasons: movement as the house dries and settles, and sealant laid onto dust without primer. Cutting it out and resealing properly fixes both.
How we handle new build mastic in Radfall
Some owners wait for the first year’s movement before having joints redone. That makes sense for small gaps that are just cosmetic, but a failed shower or bath seal shouldn’t wait. If you are dealing with kitchen sealant that has pulled off the wall and sealant applied over dusty or wet surfaces, we can put it right.
Around Radfall, older homes often have timber floors that move through the year, which is why skirting and threshold joints need a flexible sealant, not filler.
You get a 12-month guarantee, the same in Radfall as everywhere else we work.
- Location
- Radfall (CT5)
- Region
- Kent
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Aftercare tips
No joint lasts for ever, but care makes a real difference. A few tips:
- Don’t seal over failed sealant yourself
- Keep water off fresh sealant until it has cured
- Raise failed sealant with the developer while you’re covered
- Avoid scourers and strong chemicals on sealant
Photograph failed sealant before it’s redone and keep the builder’s replies. It helps if anything else comes up during the warranty period.
A seal that splits early is often a sign of movement. Getting it resealed properly, and any movement checked, stops it recurring.
Why deal with it now?
It often makes sense to do all the sealant items on a snagging list together. It’s one visit, one quote and one set of cure times. Older cottages and farmhouses around Radfall can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Why Radfall clients choose us
- White, clear, grey or coloured to suit, where the product allows
- 12-month guarantee on every job
- Colour picked to suit the job
- Quality sealants from Arbo and Everbuild
See our cost guide and our reviews.
Towns and villages near Radfall
Other services in Radfall
Surface by surface
Windows and doors
External mastic around new windows and doors is sometimes rushed or missed. It’s resealed with an exterior sealant suited to the frame and wall.
Plot handovers
Taking time over preparation reduces return visits. We clean out building dust before sealing.
New homes and floors in Radfall
Radfall is close to the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you’ve bought a new home near Chestfield & Swalecliffe station, the sealant around baths, showers and frames is worth checking in the first year or two. Around Radfall, as everywhere, new build mastic is only as good as the preparation behind it.
Radfall is about 2 miles south-east of Whitstable, in Kent. If you need new build mastic in Radfall, it’s easy to get a quote: please phone 0345 464 0079 or drop us an email. We cover Kent from our Crawley base, Radfall included. Our area takes in 922 places across Kent, from the larger towns to small villages. For nearby work, see our Chelmsford page, about 37 miles away.
Our applicators cover all of the CT5 postcode area for new build mastic and the streets around it. You’ll find streets such as Radfall Road, Broomfield Gate and Dukeswood, all of which we cover. Neighbouring places we cover for new build mastic include Chestfield (1 mile north), West End (1 mile north-east), Swalecliffe (2 miles north), Whitstable (2 miles north-west) and Tankerton (2 miles north-west). Within a short drive, we also cover Canterbury (4 miles south), Margate (14 miles east), Sittingbourne (14 miles west), Ramsgate (15 miles east), Faversham (8 miles west) and Herne Bay (4 miles north-east).
Landmarks near Radfall
For rail, the closest station is Chestfield & Swalecliffe station, roughly 1.5 miles north. A little further out are Tankerton Castle (2.3 miles north-west) and Sidney Cooper Museum (4 miles south). Green spaces nearby include West Blean and Thornden Woods.
How the visit works
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 few hours for most snagging lists, longer for a run of plots. Somewhere like Radfall needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked for movement before any work starts.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Let us know about stairs, lifts or work at height
- Try not to wet indoor joints just before the visit
Get a quote
Want a quote for new build mastic? Please phone 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear quote before any work starts.
Advice
Landlords, agents and businesses in Radfall
Mouldy or split sealant often shows up at the end of a tenancy. We can quote for more than one property at once.
We also work for property managers and facilities teams. Several sites can be quoted together, and we’re fully insured for the work.
What sealant work cannot fix
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Settlement cracks that need a surveyor
- Broken tiles or a split tray
- Your warranty claim itself, which is between you and the builder
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly.
Where we work in Radfall
- Skirting & floors
- Bathrooms & en suites
- Kitchens
- Plot handovers
- Windows & doors
- Show homes
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.