Hampshire · England
New Build Mastic in Forton
Problem with your new-build sealant joints in Forton? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Internal frame sealant that has split
- Messy sealant that spoils new finishes
- Kitchen sealant that has pulled off the wall
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Watch for new gaps as the house dries out
- Ventilate bathrooms well, especially in the first year
- Follow the cure time we give you
- Don’t wait for the house to settle if water is getting through
Ventilation matters in a new home, which is still drying out. Use the extractor fan or open a window after showers to help keep mould away.
If a shower tray or bath seal splits in the first year, look for movement. Have it resealed, and the tray or bath checked, before it gets worse.
New build mastic in Forton
Across Forton, we work for both new-home owners and the builders handing those homes over. Whether it’s one en suite or a run of plots, the method is the same: remove, clean, prime where needed, then a neat new bead. We’re often asked to deal with beads laid onto grit and dust from the build and cracks appearing as a new home settles, on kitchens, windows & doors and plot handovers.
For a new home in or near Forton, it’s worth checking the sealant early. Common snags include open skirting joints, lifting shower seals and gaps around frames.
Big or small, you get the same one-year guarantee.
- Where
- Forton (PO12, PO13)
- Region
- Hampshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
What happens on the day
There is not much for you to do on the day. Point us to the joints and we will get on with it. The job generally takes a few hours in a single home. Parking around Forton is usually easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- 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.
- We check every joint and tell you how long each needs to cure.
Before we arrive
- Let us know about parking restrictions
- Try not to wet indoor joints just before the visit
- Tell us about any water getting in
Get a quote
For a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. We will send you a clear quote before any work starts.
Read more
How we quote for new build mastic
For a quick quote, just ask. The main things that affect it are:
- The old material and how stubborn it is
- Any mould that needs treating
- The number of rooms or windows
- The product the joint needs
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 play a part, and we will explain the quote if you ask.
Helping us quote
Before you ask for a quote, have a think about:
- Any previous sealing or DIY work
- The rough size of the job
- The address or postcode of the job
- 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. When it suits you, call 0345 464 0079 or drop us an email.
What we can’t put right
Before you book, it’s worth knowing the limits:
- Cracked trays, tiles or worktops
- Leaking fittings rather than failed sealant
- Your warranty claim itself, which is between you and the builder
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
Surfaces we seal
- Skirting & floors
- Bathrooms & en suites
- Kitchens
- Show homes
- Windows & doors
- Plot handovers
Surface by surface
Plot handovers
We work through plots to your schedule, sealing each room ready for handover. Joints are prepared properly before sealing.
Show homes
We seal show-home bathrooms, kitchens and frames ready for viewings. Tell us when the home is open so we can plan around it.
Questions from Forton
Can you do new build mastic in Forton?
Yes. Our work covers London and the South East, and Forton is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear quote.
Do you work for landlords with property near Portsmouth Harbour station?
Yes. We work for letting agents and landlords as well as householders. You can phone 0345 464 0079 or drop us an email with the details for a clear quote.
Is it worth trying it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint before we leave.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator.
What does new build mastic cost?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. You will get a clear quote before work begins.
Can I add another job to the visit?
Yes, we can. More than one area can go on one quote.
My new home is still under warranty. Should I contact you?
While the snagging or warranty period runs, the builder should be your first contact. If they’re slow or the fix does not last, we can help.
New build mastic around Forton
Forton 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In and around Forton, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. If you’ve bought a new home near Portsmouth Harbour station, the sealant around baths, showers and frames is worth checking in the first year or two.
Forton is about 1 mile south-east of Gosport, in Hampshire. Whether you are in the middle of Forton or further out, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Our Hampshire coverage runs to 683 places, Forton among them.
Postcode districts we cover here for new build mastic: PO12 and PO13. Local streets include Lee Road, Ford Road and Lees Lane, all of which we cover. Nearby, we also carry out new build mastic in Gosport (1 mile north-west), Priddy's Hard (1 mile north-east), Elson (1 mile north), Bridgemary (2 miles north-west) and Rowner (2 miles north-west). Larger places within reach include Havant (8 miles north-east), Eastleigh (15 miles north-west), Fareham (4 miles north-west), Horndean (9 miles north-east), Hedge End (11 miles north-west) and Waterlooville (7 miles north-east).
What’s near Forton
In Forton, that means homes and buildings near The Trafalgar pub, Brune Park Community School and St Vincent College, among other places. For rail, the closest station is Portsmouth Harbour station, about 1.5 miles east of the centre. Nearby you’ll also find Portchester Castle (2.8 miles north-east) and Gosport War Memorial Hospital (0.6 miles south-west). The countryside around Forton includes West of the River Alver and Portsdown Hill.
Why it’s worth doing now in Forton
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Resealing promptly protects the new finishes around it. In a smaller place like Forton, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
What it costs depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before any work starts, so you know where you stand.
Why choose Mr Mastic in Forton
- Tidy, careful work
- Fully insured
- Domestic, commercial and hotel work
- Sealant colour chosen to suit
See our cost guide or what customers say.
Places near Forton
What else we do in Forton
Landlord and commercial work in Forton
For anyone letting property in or around Forton, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
Landlords and letting agents in Forton can book us as well as homeowners. Resealing between tenancies keeps a property looking cared for.