Kent · England
New-build mastic & snagging in Great Chart, Kent
Our applicators work in Great Chart on plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Gaps opening as the house dries out and settles
- Leaking shower tray seals in a new home
- Beads laid onto grit and dust from the build
New build mastic for homes and businesses in Great Chart
Our new-build work comes in two parts: plot mastic for developers, and putting right failed sealant for people who’ve bought a new home. In both, preparation makes the difference, because that is what rushed new-build sealant generally lacks. Common call-outs are for sealant applied over dusty or wet surfaces and skirting joints opening in the first winter, across skirting & floors, kitchens and plot handovers.
Around Great Chart, older homes often have timber floors that move through the year, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
Our work is backed for twelve months, in Great Chart and everywhere else we cover.
- Place
- Great Chart (TN23)
- Region
- Kent
- Guarantee
- One year on every job
- Quotes
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What happens on the day
You do not need to clear the whole room or building, just the space around the work. Everything nearby is protected, and the work takes anything from a few hours to several days, depending on the number of plots for a typical job. For a village or hamlet like Great Chart, 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 start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
Before we arrive
- Let us know about parking restrictions
- On commercial sites, let us know about site rules
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints.
Related advice
Places near Great Chart
What else we do in Great Chart
FAQs for Great Chart
Do you work for landlords with property near Ashford International station?
Yes, we work for landlords and letting agents. Just ring 0345 464 0079 or send us an email and tell us about the property, and we will give you a clear price.
Is Great Chart in your area for new build mastic?
Yes, Great Chart is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or send us an email with a few details of the job.
Can I do it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint.
Are you insured?
Yes. We are fully insured, and we can confirm the details when we quote.
What should I tell you?
Only a few details: the address or postcode, what’s wrong and any access issues. Then call 0345 464 0079 or email us.
Can you do plot mastic on a new development?
Yes. Second-fix sealing in bathrooms, kitchens, frames and floors is part of what we do. We clean and prime joints properly to keep callbacks down.
Can you work from my snagging list?
Yes. Send the list and a few pictures of the sealant items and we will give you a quote. We’ll tell you if anything on it is not a sealant job.
How we quote for new build mastic
We quote each job individually. This is what makes a difference:
- The product the joint needs
- Whether there’s mould to deal with
- Whether old sealant or filler has to be cut out
- The number of rooms or windows
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Asking for a quote
When you call or email, it’s useful to know:
- Pictures of the joints, sent by email
- How we’d reach the joints
- Roughly how big the job is
- What’s wrong with the joints now
There’s no standard price list, because every job is different. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or send us an email.
What happens if it’s left?
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 for the lot. Where a wall is exposed, as many are in small places like Great Chart, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Great Chart
- Arbo and Everbuild products
- A sealant colour to suit the surroundings
- Colour agreed with you before any work starts
- Anti-fungal sanitary silicone in wet areas
Take a look at our cost guide and our reviews.
Landlords, agents and businesses in Great Chart
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Joints and finishes in Great Chart homes
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Great Chart, as everywhere, new build mastic is only as good as the preparation behind it. For new homes near Ashford International station, it’s worth checking the sealant early, while snags are still fresh.
Great Chart is about 1 mile west of Ashford, in Kent. We carry out new build mastic for householders, landlords and businesses in Great Chart. Great Chart is one of 922 places in Kent where we work. We also work in Crawley, about 44 miles from Great Chart.
Every address in TN23 is covered for new build mastic, from the main roads to the quietest streets. You will find streets such as The Street, Toke Close and The Paddocks. Nearby, we also carry out new build mastic in Godinton (1 mile north-east), Chilmington Green (1 mile south-west), Stanhope (1 mile south-east), Ashford (1 mile east) and Fleeden (1 mile south-west). Within a short drive, we also cover Canterbury (14 miles north-east), Sittingbourne (14 miles north), Folkestone (15 miles east), Faversham (12 miles north), Hythe (12 miles south-east) and Davington (12 miles north).
Around Great Chart
We work in homes and buildings around The Little Black Dog pub, Ashford Community Woodland and John Wallis Academy, among other places. Great Chart’s nearest station is Ashford International station, roughly 1.8 miles east. A little further out are County Square (1.6 miles east) and William Harvey Hospital (3.5 miles east). For a walk, there’s Orlestone Forest.
Aftercare tips
Good habits help new joints last longer. A few tips:
- Report sealant problems to your builder during the snagging period
- Wipe joints with warm soapy water
- Keep pictures and emails about snagging items
- Do not wait for the house to settle if water is getting through
Follow the cure time we give you before the area gets wet. Silicone is generally left for about a day to cure enough for use.
If a shower tray or bath seal splits in the first year, look for movement. Have it resealed, and the tray or bath checked, before it gets worse.
How the job changes by surface
Bathrooms and en suites
En suite seals are easy to miss on a snagging list until they leak. A proper reseal keeps water in the tray.
Kitchens
Worktop, upstand and sink joints in new kitchens often get a hurried bead. We remove it and reseal with a kitchen-suitable sealant.
DIY versus a professional finish
A careful DIYer can reseal a simple joint, 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.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.