Kent · England
High Brooms New Build Mastic
Professional new build mastic in and around High Brooms, with every bit of old sealant taken out first and a 12-month guarantee.
- New-build shower sealant that has already split
- Gaps behind new kitchen upstands
- Messy sealant that spoils new finishes
Leave it or put it right?
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Resealing promptly protects the new finishes around it. In an older home around High Brooms, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
Doing several joints on one visit generally makes better use of the time than several visits. We’ll give you a clear price for the lot.
Why choose Mr Mastic in High Brooms
- We agree the colour with you first
- Approved under the ARBOMaster scheme
- 180+ five-star Google reviews
- More than 20 years in sealant work
Take a look at our cost guide or our reviews.
New build mastic for homes and businesses in High Brooms
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. Both get the same care over preparation. We work on skirting & floors, bathrooms & en suites and kitchens, and the jobs we see most are frame joints opening as the plaster dries and messy sealant that spoils new finishes.
In and around High Brooms, floors range from older timber boards to tiles and newer finishes, from timber that moves with the seasons to tiles laid on concrete. Skirting and threshold joints need a sealant that suits the floor.
A 12-month guarantee comes as standard.
- Location
- High Brooms (TN2, TN4, TN1)
- Wider area
- Kent
- Guarantee
- A year, on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
When something else is needed
Before booking, it’s worth knowing the limits too:
- Deciding who is responsible under a builder’s warranty
- Movement caused by a poorly fitted tray or bath
- Leaks from pipes, valves or wastes, which need a plumber
If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer before booking.
Where we work in High Brooms
- Skirting & floors
- Show homes
- Kitchens
- Bathrooms & en suites
- Plot handovers
- Windows & doors
Your questions about new build mastic in High Brooms
Can you do new build mastic in High Brooms?
Yes, High Brooms is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or email us and let us know what needs doing.
Can you help a landlord with a rental near High Brooms station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can be quoted together. You can ring 0345 464 0079 or email us with the details for a clear quote.
Do you remove the old sealant?
Always. Sealing over the old bead is the commonest cause of early failure, so we never do it.
Can I add another job to the visit?
Yes. Several rooms, windows or areas can go on one quote.
How much does new build mastic cost in High Brooms?
Size, access and the old material all affect the cost. Ask us for a quote.
How long does new build mastic take?
Most jobs take anything from a few hours to several days, depending on the number of plots, including preparation and clearing up. We’ll confirm how long when we quote.
Is it worth resealing while the house is still settling?
Any seal that is leaking should be redone straight away. Cosmetic gaps can wait until the first year or two of movement has passed.
What colour sealant will you use?
It depends on the joint: white or clear for most sanitary joints, colours for worktops, floors and frames. We’ll agree it with you first.
For landlords and businesses
If you manage several properties in or around High Brooms, several properties can be quoted together. Just tell us the addresses and what each one needs.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Quotes for new build mastic in High Brooms
Some jobs are bigger than they look, and some smaller. The main factors:
- The type of sealant required
- How easy the joints are to reach
- How many areas need sealing
- The amount of work
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or drop us an email.
What to tell us for a quote
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- Roughly how big the job is
- Where the job is, and your postcode
- Any access issues, like height or stairs
- What’s wrong with the joints now
Want a quote for new build mastic? Please ring 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it lifts and traps water and mould underneath. All the old material has to come out first.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
New homes and floors in High Brooms
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.
Around High Brooms, as everywhere, new build mastic is only as good as the preparation behind it. If you’ve bought a new home near High Brooms station, the sealant around baths, showers and frames is worth checking in the first year or two.
High Brooms is about 1 mile north-east of Royal Tunbridge Wells, in Kent. Across the TN2 area, we cover new build mastic for homes and businesses. Across Kent, we cover 922 places, and High Brooms is one of them. You can also see our page for Crawley, roughly 20 miles from High Brooms.
We cover every part of the TN2, TN4 and TN1 postcode area for new build mastic. That includes homes and businesses on Oak Road, Brook Road and Caley Road. If you are just outside High Brooms, we cover Southborough (1 mile north-west), Royal Tunbridge Wells (1 mile south-west), Hawkenbury (2 miles south), Stockland Green (2 miles west) and Bidborough (2 miles north-west). Larger places within reach include Maidstone (14 miles north-east), Sevenoaks (10 miles north-west), Tonbridge (3 miles north), Kings Hill (10 miles north-east), Foley Park (14 miles north-east) and Paddock Wood (5 miles east).
Local landmarks in High Brooms
Around High Brooms, our work takes us to homes and buildings near St Gregory's Catholic School, Hilbert Woods and Longbow Court pub, among other places. There’s a railway station in High Brooms itself: High Brooms station. A little further out are Kent and Sussex Hospital (1.2 miles south-west) and Tunbridge Wells Museum and Art Gallery (1.2 miles south-west). For a walk, there’s Tudeley Woods RSPB reserve and Barden Lake.
Looking after it afterwards
A little care helps the new joints last. We recommend:
- Clean sealant with mild detergent, not abrasives
- Keep photos and emails about snagging items
- Keep water off fresh sealant until it has cured
- Avoid running a DIY bead over the old one
Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day to cure enough for use.
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.
What we do, step by step
Every visit runs the same way: we check the joints, protect the area around them, do the work and clear up. Most jobs take a few hours in a single home. Parking around High Brooms is normally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out, with no layer left behind.
- Joints are vacuumed and cleaned of building dust.
- Primer goes on where the surface and product need it, then the new sealant.
- We tool every joint neatly and tell you when each area can be used.
Before we arrive
- Let us know about parking restrictions
- Where the joints are inside, avoid wetting them before we arrive
- Mention any sign-in or site rules at work premises
Get a quote
Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or email us and describe the job, and photos are welcome.