Isle of Wight · England
New-build mastic & snagging in Bouldnor, Isle of Wight
New build mastic in Bouldnor from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Beads laid onto grit and dust from the build
- Skirting joints opening in the first winter
- Plot mastic for developers ahead of handover
The process
At the end, we look at the finished work together. The visit itself normally takes anything from a few hours to several days, depending on the number of plots, depending on the amount of work. Somewhere like Bouldnor needs a little journey planning: 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 down to clean surfaces.
- We clean out the dust and grit left from the build.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
Before we arrive
- Mention if the joints have been sealed before
- For indoor joints, keep the area dry beforehand if you can
- Mention any parking rules near the property
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.
Advice
New build mastic in Bouldnor, done properly
Snagging sealant properly means taking the failed bead out completely. Fresh silicone cannot bond to the old layer, so it all comes out before we clean, dry and reseal. We work on plot handovers, kitchens and windows & doors, and the jobs we see most are cracked sealant around new window and door frames and kitchen sealant that has pulled off the wall.
Work in a small place like Bouldnor just needs the journey and access planning, and the work itself is the same as on any site.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.

- Where
- Bouldnor (PO41)
- Region
- Isle of Wight
- Cover
- One year on every job
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
DIY versus a professional finish
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
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.
Why it’s worth doing now in Bouldnor
Running a new bead over the builder’s sealant might look tidy for a few weeks, but it can’t bond to what’s underneath. A lasting seal starts with removing the old one completely. In a small place like Bouldnor, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why book with us
- Quality sealants from Arbo and Everbuild
- An ARBOMaster approved applicator
- Over 20 years’ experience
- Homes, businesses and hotels
Read our cost guide and customer reviews.
Aftercare tips
Aftercare is simple:
- Record problems with dated pictures
- Wipe joints with warm soapy water
- Avoid running a DIY bead over the old one
- Watch for new gaps as the house dries out
Clean the sealant with a mild detergent and a soft cloth. Avoid abrasive pads and strong solvents.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black saves a harder job later.
Bouldnor: your questions answered
Can you do new build mastic in Bouldnor?
Yes. Our work covers London and the South East, and Bouldnor is part of that. Just call 0345 464 0079 or email us with a few details of the job.
Is Bouldnor within the area you cover?
Yes, we do. 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.
How long before the joint can be used?
It depends on the product and the temperature. Before we leave, we will tell you the cure time.
Do you have insurance?
Yes. We are fully insured, and we’ve been doing sealant work for more than 20 years.
I rent my home. Can I book you?
Of course. Check with your landlord; we can send the quote to them too.
What do you put in the joint?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Will you leave a mess?
No. We work neatly, protect the area around the joints and tidy up afterwards.
New build mastic in Bouldnor: local notes
Bouldnor is within about 1 mile of the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you’ve bought a new home near Lymington Pier station, the sealant around baths, showers and frames is worth checking in the first year or two.
Bouldnor is about 5 miles south-east of Lymington, in the Isle of Wight. Whether you’re in the middle of Bouldnor or further out, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Our the Isle of Wight coverage runs to 125 places, Bouldnor among them. There’s also a page for Southampton, roughly 15 miles from Bouldnor.
Postcode districts we cover here for new build mastic: PO41. If you need new build mastic at a property on The Vineyard, Port La Salle and Waters Edge or a nearby road, our applicators can take on the job. Other places close to Bouldnor include Yarmouth (1 mile west), Cranmore (1 mile east), Hamstead (2 miles north-east), Shalfleet (3 miles east) and Thorns Beach (4 miles north). Within a short drive, we also cover Newport (8 miles east), Ryde (14 miles east), Cowes (8 miles north-east), Sandown (14 miles east), Shanklin (14 miles east) and Ventnor (14 miles south-east). If you are somewhere remote, the job takes a little more planning, so mention it when you ask for a quote.
Landmarks near Bouldnor
Locally, jobs take us to homes and businesses close to Bugle Hotel and the streets around them. The closest station to Bouldnor is Lymington Pier station, about 4.2 miles north-west. A little further out are Ferguson Family Museum (1.9 miles south-west) and Yarmouth Castle (1 mile west). For a walk, there’s Compton Down and Lymington and Keyhaven Marshes Nature Reserve.
More services for Bouldnor
Signs you need new build mastic in Bouldnor
The wrong product is sometimes used in the wrong place: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Neither lasts long.
Any of these means the joints need attention:
- Untidy sealant flagged on a snagging list
- Joints pulling apart as timber shrinks
- Sealant work across a run of new homes
- Sealant that never bonded to the surface
Around Bouldnor, as everywhere, new build mastic is only as good as the preparation behind it.
Questions to ask before you book
- Is the old sealant removed completely?
- How long to leave it before use
- How the colour is chosen
- The length of the guarantee
Different surfaces, different methods
Show homes
We can refresh show-home sealant that has discoloured or been knocked. We cut it out and reseal neatly.
Windows and doors
On new builds, external frame sealant can be patchy. It’s resealed with an exterior sealant suited to the frame and wall.
What affects the quote in Bouldnor
There’s no set price list, because jobs vary so much. The quote depends on:
- Which sealant suits the joint
- Whether the work is at height
- How many rooms, windows or areas are involved
- Whether old sealant or filler has to be cut out
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
What to tell us for a quote
When you contact us, these details help:
- How we’d reach the joints
- If someone has resealed it before
- Photos by email, if that’s easy
- What’s wrong with the joints now
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. When it suits you, phone 0345 464 0079 or drop us an email.
