Hampshire · England
New Build Mastic in New Forest
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in New Forest and across Hampshire. Fully insured, ARBOMaster approved and guaranteed for a year.
- Gaps between new skirting and floors
- New-build shower sealant that has already split
- Sealant that never bonded to the surface
New build mastic in New Forest
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. If you’re still within the builder’s snagging or warranty period, tell them first, and if it isn’t put right, get in touch with us. Typical jobs include leaking shower tray seals in a new home and plot mastic for developers ahead of handover, across skirting & floors, bathrooms & en suites and show homes.
In a village or hamlet like New Forest, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Each still needs its sealant and floor joints finished properly.
Every job comes with our 12-month guarantee, wherever you are in Hampshire.
- Place
- New Forest (SP6)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What we do, step by step
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes anything from a few hours to several days, depending on the number of plots. For a village or hamlet like New Forest, 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.
- The old bead comes out in full, with no layer left behind.
- We clean off dust from the build and prime the surfaces where the product needs it.
- 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
- Keep children and pets away from the work area
- Clear the area around the work
- Mention any leaks or damp you’ve noticed
Ask for a quote
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will explain how we’d tackle it. Whenever you’re ready, ring 0345 464 0079 or email us.
Advice
Towns and villages near New Forest
Also in New Forest
Common questions in New Forest
Is New Forest in your area for new build mastic?
Yes, New Forest 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, and we’ll give you a clear quote.
Is New Forest within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
Why has my new-build shower seal failed already?
New homes dry out and move in their first couple of years, and sealant is often rushed onto dusty, unprimed surfaces. Both lead to early failure.
Where do you work from?
We are based in Crawley, and we work across South East England, London and Scotland.
How long will you be here?
It depends on the size of the job, but most jobs take a few hours in a single home. We’ll give you a better idea when we quote.
Will you just run a new bead over the existing one?
No. The old sealant is cut out fully, then clean and prime the joint, and a new bead applied.
Are you insured?
Yes. We’re fully insured, and we can confirm the details when we quote.
Looking after it afterwards
Joint life depends on how it’s used and looked after. We suggest:
- Do not seal over failed sealant yourself
- Clean sealant with mild detergent, not abrasives
- Ventilate bathrooms well, especially in the first year
- Wait for the cure time before using a resealed shower
Clean the sealant with a mild detergent and a soft cloth. Keep scourers and harsh chemicals off it, which can damage the surface.
A seal that splits early is often a sign of movement. Getting it resealed properly, and any movement checked, stops it recurring.
When something else is needed
We will always be straight with you, so here’s what sealant cannot fix:
- Damaged fittings that need replacing
- Leaks from pipes, valves or wastes, which need a plumber
- Deciding who is responsible under a builder’s warranty
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before booking.
Where we work in New Forest
- Plot handovers
- Bathrooms & en suites
- Skirting & floors
- Windows & doors
- Show homes
- Kitchens
When to call us in New Forest
Fresh sealant can be knocked or cut by trades finishing off. If it’s disturbed before curing, the joint can be left weak.
These are the problems we are asked about most:
- Cracks appearing as a new home settles
- Cracked caulk along new skirting
- Sealant work across a run of new homes
- Kitchen sealant that has pulled off the wall
Around New Forest, as everywhere, new build mastic is only as good as the preparation behind it.
Questions to ask before booking
- What guarantee comes with the work
- Who does the work, and how experienced they are
- Whether they’re fully insured
- How hidden problems are handled
Joints and finishes in New Forest homes
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.
Whether the job is in New Forest itself or nearby, the right material for each joint matters as much as a neat finish.
New Forest is in Hampshire. Homes, rented property, offices and hotels in New Forest is covered for new build mastic, old or new, large or small. Every job comes with our 12-month guarantee. New Forest is one of 683 places in Hampshire where we work. We also work in Southampton, around 23 miles away.
Here we cover the SP6 postcode area for new build mastic. We cover properties on Sillens Lane and Townsend Lane and the roads around them. Other places close to New Forest include Martin (1 mile north-east), Rockbourne (3 miles east) and Damerham (3 miles south-east). Larger places within reach include Ringwood (11 miles south-east), Fordingbridge (6 miles south-east), St Leonards (11 miles south), Alderholt (6 miles south-east), Poulner (11 miles south-east) and Ashley Heath (10 miles south).
Landmarks near New Forest
Other landmarks nearby include Cranborne Castle Hill (4.4 miles south). The countryside around New Forest includes Western Downs.
Quotes for new build mastic in New Forest
We don’t publish a price list. What we look at:
- When we can work, for business premises
- Whether old sealant or filler has to be cut out
- Any mould that needs treating
- The amount of work
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or send us an email.
What we need to know
Before you ask for a quote, have a think about:
- The rough size of the job
- Where the job is, and your postcode
- A few pictures by email, if you can
- Whether it has been sealed before
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and email pictures if that’s easy.
Landlords, agents and businesses in New Forest
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 also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Why deal with it now?
Sealant done properly at handover means fewer callbacks. Snagging visits for failed sealant cost time on every plot. In a small place like New Forest, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why book with us
- Approved under the ARBOMaster scheme
- Old sealant always removed completely
- A 12-month guarantee on all work
- 20+ years of sealant experience
Read how sealant jobs are priced and our reviews.