Isle of Wight · England
New Build Mastic in Afton
New build mastic across Afton and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Second-fix sealing on new plots
- Kitchen sealant that has pulled off the wall
- New-build shower sealant that has already split
Looking after it afterwards
To keep the joints looking good and working properly:
- Raise failed sealant with the developer while you are covered
- Don’t wait for the house to settle if water is getting through
- Avoid scourers and strong chemicals on sealant
- Open a window or run the fan after bathing
Clean the sealant with a mild detergent and a soft cloth. Keep scourers and harsh chemicals off it, which can damage the surface.
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.
New build mastic for homes and businesses in Afton
For builders and developers, we work through plots to the schedule you give us. Bathrooms, en suites, kitchens, frames and skirting are sealed ready for handover using the right product for each joint. If you have cracked sealant around new window and door frames and untidy sealant flagged on a snagging list, we can help.
Older homes in small places like Afton often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.
- Location
- Afton (PO40)
- Region
- Isle of Wight
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
FAQs for Afton
Is Afton within the area you cover?
Yes, Afton is covered. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you do new build mastic in Afton?
Yes. We work across London and the South East, and Afton is part of that. You can phone 0345 464 0079 or send us an email and tell us what needs doing.
Is it normal for sealant to crack in a new home?
New homes dry out and move in their first couple of years, and sealant is often rushed onto dusty, unprimed surfaces. Either can make it fail early.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, chosen to suit the joint. We explain the product when we quote.
Do you guarantee your work?
Yes, for a year. If there’s a problem with our work in that time, tell us and we will put it right.
What do you need from me for a quote?
A short description and the location, plus photos if you have them. We’ll ask anything else we need to know.
Who should fix failed sealant in a new build?
While the snagging or warranty period runs, the builder should be your first contact. If they’re slow or the fix doesn’t last, we can help.
Surface by surface
Kitchens
Worktops in new homes can move slightly as the house dries, which opens gaps along the back. We reseal them with a flexible sealant.
Windows and doors
A draught at a new window can be a missed or failed joint. We check and reseal the frame edges.
New build mastic in Afton: local notes
Afton is within about 1 mile of the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so any gaps are best picked up early. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Around Afton, as everywhere, new build mastic is only as good as the preparation behind it.
Afton is about 6 miles south of Lymington, in the Isle of Wight. Whether you are in the middle of Afton or further out, new build mastic is available for homes and businesses alike. Afton is one of 125 towns and villages in the Isle of Wight where we work for new build mastic. Southampton is on our list too, around 18 miles away.
All of PO40 is covered for new build mastic, from the main roads to the quietest streets. Streets in the area include Bay Road, Afton Road and Manor Road, and we cover them all. Neighbouring places we cover for new build mastic include Afton Park (1 mile east), Easton (1 mile west), Freshwater (1 mile north-west), Norton Green (1 mile north) and Colwell (1 mile north-west). Further out, we also cover Newport (9 miles east), Ryde (15 miles east), Cowes (10 miles north-east), Sandown (15 miles east), Shanklin (15 miles east) and Ventnor (14 miles south-east). Island and remote addresses take a little more planning, so tell us where you are when you ask for a quote.
Local landmarks in Afton
In Afton, that means homes and buildings near The Red Lion pub, among other places. Nearby you will also find Dimbola Museum And Galleries (within half a mile south-west) and Yarmouth Castle (2.2 miles north). Not far away are Afton Down and Lymington and Keyhaven Marshes Nature Reserve.
Towns and villages near Afton
Also in Afton
Why act early in Afton
Small cosmetic gaps can wait for the house to settle, but a leaking seal can’t. Not sure whether yours can wait? You can ring 0345 464 0079 or send us an email with a few pictures. Where a wall is exposed, as many are in small places like Afton, wind-driven rain gets into any failed joint, and older walls, once damp, take a long time to dry.
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Why choose Mr Mastic in Afton
- ARBOMaster approved applicator
- Old sealant always removed completely
- We agree the colour with you first
- Trusted Arbo and Everbuild sealants
Read what affects the cost or customer reviews.
Signs you need new build mastic in Afton
If plaster or screed was still damp when it was sealed, the bond suffers. On a busy site, joints are not always given time to dry first.
These are the problems we are asked about most:
- Messy sealant that spoils new finishes
- Cracks appearing as a new home settles
- New-build shower sealant that has already split
- Cracked sealant around new window and door frames
For jobs in and around Afton, choosing the right material for each joint is as important as a tidy finish.
What to look for in a quote
- Whether you can choose the colour
- What happens if the job turns out different
- Whether all the old sealant comes out first
- What guarantee comes with the work
What affects the cost of new build mastic
For a quick quote, just ask. The main things that affect it are:
- The old material and how stubborn it is
- How easy the joints are to reach
- The size of the job
- Whether there’s mould to deal with
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will explain what it covers.
Helping us quote
What to tell us when you ask for a quote:
- The rough size of the job
- The address or postcode of the job
- What the problem is, such as mould, gaps, leaks or cracking
- A few photos by email, if you can
Want a quote for new build mastic? Please phone 0345 464 0079 or drop us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
Landlord and commercial work in Afton
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance that we can handle for you.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
What happens on the day
Most of a good job is in the preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. In total, it normally takes a few hours for most snagging lists, longer for a run of plots. For a village or hamlet like Afton, 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 go through the snagging list or plot schedule and agree the joints to do.
- We cut out every bit of the failed or messy sealant.
- Surfaces are cleaned of building dust and primed where needed.
- New sealant suited to each joint is applied and tooled neatly.
- We check every joint and tell you how long each needs to cure.
How to prepare
- Mention any leaks or damp you’ve noticed
- Try not to wet indoor joints just before the visit
- On commercial sites, let us know about site rules
Ask for a quote
Getting a quote is simple: tell us what needs doing and where and its rough size. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.