East Sussex · England
New-build mastic & snagging in Punnett's Town, East Sussex
New build mastic for Punnett's Town, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Beads laid onto grit and dust from the build
- Smeared, uneven beads picked up at snagging
- Cracks appearing as a new home settles
When it isn’t the sealant
New sealant cannot fix everything, and we’d rather say so up front. Sealant won’t put right:
- Leaking fittings rather than failed sealant
- Structural cracks in walls or ceilings
- Cracked trays, tiles or worktops
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly.
What we seal
- Skirting & floors
- Show homes
- Bathrooms & en suites
- Windows & doors
- Kitchens
- Plot handovers
New build mastic for homes and businesses in Punnett's Town
Some owners wait for the first year’s movement before having joints redone. For small cosmetic gaps, that’s reasonable, but a failed shower or bath seal shouldn’t wait. We work on show homes, bathrooms & en suites and windows & doors, and the jobs we see most are joints pulling apart as timber shrinks and shower seals failing in the first year or two.
Around Punnett's Town, older homes often have timber floors that move through the year, which is why skirting and threshold joints need a flexible sealant, not filler.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Location
- Punnett's Town (TN21)
- Wider area
- East Sussex
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Also near Punnett's Town
What else we do in Punnett's Town
FAQs for Punnett's Town
Is Punnett's Town within the area you cover?
Yes, Punnett's Town is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Do you cover Punnett's Town for new build mastic?
Yes, Punnett's Town is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Where is Mr Mastic based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Can you match the sealant colour to my new kitchen or bathroom?
That depends on what the joint meets: white or clear for most sanitary joints, colours for worktops, floors and frames. We agree the colour before any work starts.
When is the best time to reseal in a new build?
Any seal that’s leaking should be redone straight away. Cosmetic gaps can wait until the first year or two of movement has passed.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures.
Are you fully insured?
Yes. Full insurance covers our work.
How long does new build mastic take?
A typical job takes anything from a few hours to several days, depending on the number of plots. Your quote will say how long we expect yours to take.
How the visit works
When we arrive, we look over the joints with you first, so you know exactly what we are doing. We protect the surfaces around the joints before work begins. The work usually takes a few hours for most snagging lists, longer for a run of plots. In a small place like Punnett's Town, access is generally the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- Each joint is checked for movement before work begins.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- 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 water getting in
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we’ll talk you through the work before giving you a price.
Related advice
How we quote for new build mastic
Jobs vary more than people expect. The main factors:
- The size of the job
- Mould in or behind the old joints
- Whether old sealant or filler has to be cut out
- Working hours on commercial sites
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference, and we’ll explain the quote if you ask.
Asking for a quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- What’s wrong with the joints now
- Whether it has been sealed before
- A few pictures by email, if you can
- How we’d reach the joints
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you are ready, phone 0345 464 0079 or send us an email.
Do you need new build mastic in Punnett's Town?
Once people move in, baths and trays take weight and bed down. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used and can tear.
The most common problems we see are:
- Worktop and upstand sealant coming away
- Sealant that never bonded to the surface
- Shower seals failing in the first year or two
- Gaps opening as the house dries out and settles
If you’ve bought a new home near Stonegate station, the sealant around baths, showers and frames is worth checking in the first year or two.
Before booking anyone
- How the joint is cleaned and prepared
- Whether the sealant suits the joint
- Are they insured?
- Who turns up on the day
Work for landlords, hotels and businesses
Landlords and agents in Punnett's Town can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
For anyone letting property in or around Punnett's Town, several properties can go on one quote. Just tell us the addresses and what each one needs.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. A few tips:
- Keep photos and emails about snagging items
- Don’t seal over failed sealant yourself
- Act quickly if a seal starts to leak
- Clean sealant with mild detergent, not abrasives
Keep the bathroom ventilated, especially in the first year. Use the extractor fan or open a window after showers to help keep mould away.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Catching it early keeps the fix to the sealant.
New build mastic in Punnett's Town: local notes
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Punnett's Town, as everywhere, new build mastic is only as good as the preparation behind it.
Punnett's Town is about 7 miles north of Hailsham, in East Sussex. From the centre of Punnett's Town to the outskirts, we cover new build mastic for every kind of property. We cover 289 towns and villages across East Sussex, from the larger towns to small villages. We also work in Brighton, about 21 miles from Punnett's Town.
We cover every part of TN21 for new build mastic. Local streets include Sands Close, Pont Close and Upper Greenwoods Lane, and we cover them all. Close by, we work in Rushlake Green (1 mile south), Burwash Common (2 miles north-east), Dallington (2 miles south-east), Wood's Corner (3 miles east) and Burwash Weald (3 miles north-east). Larger places within reach include Eastbourne (12 miles south), Hastings (13 miles south-east), Bexhill-on-Sea (10 miles south-east), Seaford (15 miles south-west), Lewes (14 miles south-west) and Hailsham (7 miles south).
Local landmarks in Punnett's Town
In Punnett's Town, that means homes and buildings near The Three Cups Inn and Heathfield Community College. For rail, the closest station is Stonegate station, roughly 4.7 miles north-east of the centre. A little further out are Old Castle (2.1 miles south-east) and Hellingly Hospital (5.3 miles south). Not far away are Selwyns Wood.
DIY versus a professional finish
The biggest DIY mistake is sealing over old sealant. Silicone does not stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.