Isle of Wight · England
New-build mastic & snagging in Wellow, Isle of Wight
Professional new build mastic in and around Wellow, with every bit of old sealant taken out first.
- Frame joints opening as the plaster dries
- Leaking shower tray seals in a new home
- Skirting joints opening in the first winter
New build mastic in Wellow
Dust is the enemy of new-build sealant. Each joint is cleaned of dust and primed where the product calls for it, so the sealant actually sticks. We work on kitchens, windows & doors and show homes, and the jobs we see most are beads laid onto grit and dust from the build and untidy sealant flagged on a snagging list.
Older homes in small places like Wellow often have timber floors that move with the seasons, which is why skirting and threshold joints need a flexible sealant, not filler.
Each job carries a 12-month guarantee, large or small.
- Where
- Wellow (PO41)
- Wider area
- Isle of Wight
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What sealant work can’t fix
Before booking, it’s worth knowing the limits:
- Damaged fittings that need replacing
- Baths and trays that move too much for sealant to cope with
- Settlement cracks that need a surveyor
If you’re not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
Surfaces we seal
- Skirting & floors
- Windows & doors
- Plot handovers
- Bathrooms & en suites
- Kitchens
- Show homes
What we do, step by step
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, the area is protected and the work begins. Most jobs take a few hours in a single home. For a village or hamlet like Wellow, 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 agreeing which joints are on the list, from the snagging sheet or plot schedule.
- Failed or untidy sealant is cut out completely.
- Each joint is cleaned of dust and grit, then primed if required.
- A sealant chosen for each area goes in and is tooled smooth.
- Each area is checked and left with its cure time.
How to prepare
- Mention any sign-in or site rules at work premises
- Let us know if you’ve seen damp or leaks
- Let us know about parking restrictions
Get a quote
Every job is quoted individually, so start by telling us what you need. Just phone 0345 464 0079 or send us an email with the details, and photos are welcome.
Related advice
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.
Plot handovers
We work through plots to your schedule, sealing each room ready for handover. Joints are prepared properly before sealing.
What else we do in Wellow
Can I do it myself?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
FAQs for Wellow
Is new build mastic in Wellow guaranteed?
All our work, in Wellow and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Do you cover Wellow for new build mastic?
Yes, Wellow is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job.
What does new build mastic cost?
It depends on the job, so we quote each one individually. For a quick quote, phone 0345 464 0079 or send us an email with a short description of the job.
Do you take out the old sealant first?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Is it normal for sealant to crack in a new home?
Lots of new homes see sealant crack early as timber and plaster dry out. Rushed application on dusty surfaces makes it worse.
Should I go to my builder first?
Report it to the builder first while you are covered. Once that’s done, or if they will not put it right, we can reseal it properly.
Can new sealant go on top of the old bead?
No. Sealing over old sealant looks fine for a few weeks, then lifts. All the old sealant comes out before work begins.
How long should I leave it?
It depends on the product and the conditions. We tell you how long to leave it before we go.
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Do not wait for the house to settle if water is getting through
- Check bath and shower seals every few months as the house settles
- Record problems with dated pictures
- Avoid scourers and strong chemicals on sealant
Keep an eye on the joints over the first couple of years. Small gaps can appear as the house dries.
Lifting sealant traps moisture and mould behind it. Resealing before mould gets in keeps the job straightforward.
Joints and finishes in Wellow homes
Wellow is close to the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. 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.
In and around Wellow, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Wellow is about 6 miles south-east of Lymington, in the Isle of Wight. We carry out new build mastic for householders, landlords and businesses in Wellow and nearby. 125 places in the Isle of Wight are on our list, large and small. Southampton is on our list too, about 16 miles from Wellow.
Work in PO41 works the same way as everywhere else we cover. If you are just outside Wellow, we cover Thorley Street (1 mile north-west), Ningwood (1 mile east), Thorley (1 mile north-west), Newbridge (1 mile east) and Shalcombe (1 mile south). We also work in nearby towns such as Newport (7 miles east), Ryde (13 miles east), Cowes (8 miles north-east), Sandown (13 miles east), Shanklin (13 miles east) and Ventnor (12 miles south-east). Remote and island addresses need a little more planning, so please mention your location when you call 0345 464 0079 or drop us an email.
Near you in Wellow
Other landmarks nearby include Calbourne Water Mill And Rural Museum (1.7 miles south-east) and Yarmouth Castle (2.4 miles north-west). The countryside around Wellow includes Lymington and Keyhaven Marshes Nature Reserve and Compton Down.
Landlords, agents and businesses in Wellow
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
We regularly work with letting and managing agents. Tell us the address, the job and how access works.
What we’re called out for in Wellow
When the heating goes on in the first winter, the house dries fast. Gaps open along skirting, frames and worktops.
Any of these means the joints need attention:
- Cracks appearing as a new home settles
- Sealant that never bonded to the surface
- Smeared, uneven beads picked up at snagging
- Gaps behind new kitchen upstands
Whether the job is in Wellow itself or nearby, the right material for each joint matters as much as a neat finish.
Questions to ask before booking
- How much experience the applicator has
- How long to leave it before use
- How the colour is chosen
- What product goes in the joint