Kent · England
Boughton Lees New Build Mastic
New-build sealant joints in Boughton Lees need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Plot mastic for developers ahead of handover
- Gaps between new skirting and floors
- Shower seals failing in the first year or two
New build mastic for homes and businesses in Boughton Lees
For builders and developers, we work through plots to the schedule you give us. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover with a sealant suited to each area. We work on skirting & floors, bathrooms & en suites and kitchens, and people most often call us about messy sealant that spoils new finishes and frame joints opening as the plaster dries.
Older homes in small places like Boughton Lees often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Boughton Lees (TN25)
- Wider area
- Kent
- Guarantee
- One year on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

Work for landlords, hotels and businesses
Letting agents and landlords in Boughton Lees can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
How it works
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself normally takes a few hours for most snagging lists, longer for a run of plots, depending on the size of the job. For a village or hamlet like Boughton Lees, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip 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.
How to prepare
- Tell us if parking is tricky
- Mention any leaks or damp you’ve noticed
- Let us know about earlier repairs to the joints
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Read more
Joints and finishes in Boughton Lees homes
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.
Around Boughton Lees, as everywhere, new build mastic is only as good as the preparation behind it.
Boughton Lees is about 4 miles north of Ashford, in Kent. For new build mastic in and around Boughton Lees, please call 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover Kent. Boughton Lees is one of 922 places in Kent we cover. You can also see our page for Chelmsford, roughly 42 miles from Boughton Lees.
Here we cover the TN25 postcode area for new build mastic. Local streets include Wye Road, Pilgrims Way and Faversham Road, and we cover them all. If you’re just outside Boughton Lees, we cover Kennington (2 miles south), Bockhanger (2 miles south-west), Potters Corner (2 miles south-west), Westwell (2 miles west) and Godinton (3 miles south-west). Larger places within reach include Ashford (4 miles south), Canterbury (10 miles north-east), Sittingbourne (13 miles north-west), Folkestone (14 miles south-east), Whitstable (13 miles north-east) and Faversham (9 miles north).
Around Boughton Lees
In Boughton Lees, that means homes and buildings near Flying Horse Inn and the streets around them. The nearest railway station is Wye station, roughly 1.4 miles east. A little further out are William Harvey Hospital (3.3 miles south) and County Square (2.9 miles south-west). Open spaces near Boughton Lees include Hatch Park.
Nearby places to Boughton Lees
More services for Boughton Lees
FAQs for Boughton Lees
Is Boughton Lees in your area for new build mastic?
Yes. We work across London and the South East, and Boughton Lees is part of that. Just phone 0345 464 0079 or email us with a few details of the job.
I let a flat near Wye station. Can you help?
Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before we start.
Do I have to be there?
That depends on where the joints are. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Can I send you my snagging list?
Yes. Snagging lists are a common starting point for us. We will go through the sealant items and agree what we will do.
What should I tell you?
Tell us what needs doing and where, with photos by email if possible. We will ask anything else we need to know.
When is the sealant fully cured?
It depends on the product. Before we leave, we’ll tell you the cure time.
How long does the job take?
That depends on how much there is to do, but most jobs take a few hours for most snagging lists, longer for a run of plots. We’ll tell you when we quote.
What affects the cost of new build mastic
There’s no set price list. The quote depends on:
- The number of rooms or windows
- How easy the joints are to reach
- Mould in or behind the old joints
- How much old sealant there is and how hard it is to remove
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you are not sure whether it needs doing, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.
What to tell us for a quote
When you contact us, it’s useful to know:
- Where the job is, and your postcode
- Access, such as stairs, a lift or height
- A few photos by email, if you can
- If it’s domestic, commercial or a hotel
Asking for a quote is easy: let us know the job and the location and its rough size. A few photos by email make the job easier to understand, and we will come back to you with a quote.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Photograph failed sealant before it’s redone
- Raise failed sealant with the developer while you are covered
- Clean sealant with mild detergent, not abrasives
- Get a leaking seal dealt with straight away
Keep the bathroom ventilated, especially in the first year. Use the extractor fan or open a window after showers to help keep mould away.
The sooner you deal with untidy or cracking sealant, the less there is to put right. Left alone, a small crack can become a leak over time.
What we can’t put right
We will not take on work that won’t last, so here’s what sealant can’t put right:
- Deciding who is responsible under a builder’s warranty
- Leaks from pipes, valves or wastes, which need a plumber
- Broken tiles or a split tray
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer.
What we seal
- Bathrooms & en suites
- Windows & doors
- Show homes
- Plot handovers
- Skirting & floors
- Kitchens
Can I do it myself?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
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.
Signs you need new build mastic in Boughton Lees
On many sites, sealant goes on in the final rush before handover. Dusty, unprimed joints are common, and the sealant sits on grit instead of the surface.
Any of these means the joints need attention:
- Internal frame sealant that has split
- Gaps opening as the house dries out and settles
- Worktop and upstand sealant coming away
- Beads laid onto grit and dust from the build
If you’ve bought a new home near Wye station, the sealant around baths, showers and frames is worth checking in the first year or two.
Questions to ask before booking
- Is the old sealant removed completely?
- What happens if they find a problem under the old sealant
- What insurance they hold
- Whether the sealant suits the joint
