Kent · England
New-build mastic & snagging in Capel, Kent
New build mastic for Capel, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- New-build shower sealant that has already split
- Worktop and upstand sealant coming away
- Second-fix sealing on new plots
New build mastic for homes and businesses in Capel
New homes move as they dry out. Timber shrinks, plaster dries and baths and trays bed down, and sealant applied in a hurry at handover can split. If you’re dealing with kitchen sealant that has pulled off the wall and plot mastic for developers ahead of handover, we can help.
In a village or hamlet like Capel, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
You’re covered for a year from the day we finish. If anything is not right with it, call 0345 464 0079 or email us.
- Place
- Capel (TN12)
- Region
- Kent
- Guarantee
- One year on every job
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Record problems with dated photos
- Wait for the cure time before using a resealed shower
- Ventilate bathrooms well, especially in the first year
- Avoid running a DIY bead over the old one
Ventilation matters in a new home, which is still drying out. Use the extractor fan or open a window after showers.
If a shower tray or bath seal splits in the first year, look for movement. Getting it resealed properly, and any movement checked, stops it recurring.
How the visit works
We keep the work tidy and contained to the joints we are treating. The job generally takes a few hours for most snagging lists, longer for a run of plots. Somewhere like Capel needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we work through your snagging list or plot schedule with you.
- We cut out every bit of the failed or messy sealant.
- Surfaces are cleaned of building dust and primed where needed.
- A sealant chosen for each area goes in and is tooled smooth.
- We check every joint and tell you how long each needs to cure.
How to prepare
- Tell us about any water getting in
- On commercial sites, let us know about site rules
- Let us know about stairs, lifts or work at height
How to get a quote
It all starts with a short chat. Describe the problem, the location and the size of the job. When it suits you, ring 0345 464 0079 or drop us an email.
Read more
Also in Capel
What happens if it’s left?
DIY kits don’t solve the main problems with new-build sealant: grit, unprimed surfaces and old layers underneath. Cutting out, cleaning and priming are what make the difference. Older cottages and farmhouses around Capel can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or email us.
Why Capel customers choose us
- Sealant colour chosen to suit
- Sanitary silicone with an anti-fungal additive in wet areas
- 4.9 on Google from 180+ five-star reviews
- Approved under the ARBOMaster scheme
Common questions in Capel
I let a flat near Paddock Wood station. Can you help?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear quote.
Is Capel within the area you cover?
Yes, Capel is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Where is Mr Mastic based?
We work from Crawley. We cover Capel and the rest of Kent.
Are you insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
How long does the job take?
As a guide, most jobs take a few hours in a single home. Bigger jobs take longer.
Is it worth trying it myself?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Do you work through snagging lists?
Yes. Send us the sealant items on the list, with photos if you can and we’ll give you a quote. We will tell you if anything on it is not a sealant job.
Can you do plot mastic on a new development?
Yes. We seal plots to the developer’s programme ready for handover. Get in touch with the number of plots and the scope and we’ll quote.
What new build mastic looks like in Capel
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Around Capel, as everywhere, new build mastic is only as good as the preparation behind it.
Capel is about 3 miles south-east of Tonbridge, in Kent. We provide new build mastic to householders, landlords and businesses in Capel and nearby. We cover 922 towns and villages across Kent, large and small. Crawley is on our list too, about 24 miles from Capel.
We cover every part of the TN12 postcode area for new build mastic. Local streets include Redwood Park, Alders Road and Church Lane, and we cover them all. If you are just outside Capel, we cover Five Oak Green (1 mile north-east), Colt's Hill (1 mile east), Crockhurst Street (1 mile west), Tudeley (1 mile north-west) and Tudeley Hale (2 miles north-west). Within a short drive, we also cover Maidstone (10 miles north-east), Sevenoaks (10 miles north-west), Royal Tunbridge Wells (4 miles south-west), Tonbridge (3 miles north-west), Kings Hill (7 miles north) and Foley Park (11 miles north-east).
Around Capel
Locally, jobs take us to homes and businesses close to Foal Hurst Wood, The Dovecote Inn and Mascalls School and the streets around them. The nearest railway station is Paddock Wood station, about 2 miles east of the centre. Nearby you will also find Tonbridge Castle (3.4 miles north-west) and Tunbridge Wells Hospital (2.5 miles south-west). Green spaces nearby include Tudeley Woods RSPB reserve and Barden Lake.
How we quote for new build mastic
The quote reflects the job in front of us. We take into account:
- When we can work, for business premises
- Mould in or behind the old joints
- How much old sealant there is and how hard it is to remove
- The product the joint needs
Leaving a failed joint generally makes the job bigger, not smaller, because water and mould keep working on it. If you are unsure, call 0345 464 0079 or email us for an honest opinion and a quote.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Roughly how big the job is
- What’s wrong with the joints now
- Photos by email, if that is easy
- The address or postcode of the job
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we will talk you through the work.
What the job involves on each surface
Kitchens
New-kitchen sealant is often applied in a rush. We remove it and reseal with a kitchen-suitable sealant.
Bathrooms and en suites
Shower trays in new homes often move slightly in the first year. The joint is stripped back before the new bead goes in and baths are filled before sealing.
When something else is needed
We’d rather tell you now than do work that won’t last, so here’s what sealant cannot put right:
- Baths and trays that move too much for sealant to cope with
- Disputes or warranty claims with your builder
- Structural cracks in walls or ceilings
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly before booking.
Surfaces we seal
- Skirting & floors
- Kitchens
- Show homes
- Plot handovers
- Windows & doors
- Bathrooms & en suites
Signs you need new build mastic in Capel
New homes are full of moisture from plaster, screed and concrete, which takes a year or two to dry out. As it does, timber shrinks and joints open, and sealant that cannot keep up splits.
Any of these means the joints need attention:
- Messy sealant that spoils new finishes
- Gaps behind new kitchen upstands
- Sealant that never bonded to the surface
- Skirting joints opening in the first winter
If you’ve bought a new home near Paddock Wood station, the sealant around baths, showers and frames is worth checking in the first year or two.
Questions to ask before you book
- Whether they seal over old material or remove it
- What preparation is included
- Is VAT in the price?
- Which colour the sealant will be