Hampshire · England
New Build Mastic in Neatham
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Neatham and across Hampshire. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Worktop and upstand sealant coming away
- Joints pulling apart as timber shrinks
- Frame joints opening as the plaster dries
About our new build mastic in Neatham
A new build should have a neat, sound bead at every joint. Smeared, patchy or cracked sealant is worth sorting early, before water reaches anything behind it. If you have cracks appearing as a new home settles and cracked caulk along new skirting, we can help, whatever the surface.
Somewhere as small as Neatham, new homes tend to be conversions, self-builds or a few houses rather than an estate. Each still needs its sealant and floor joints finished properly.
You’re covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or send us an email.
- Place
- Neatham (GU34)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
No joint lasts for ever, but care makes a real difference. Our tips:
- Do not wait for the house to settle if water is getting through
- Resist patching a failed seal with a tube from the DIY shop
- Put sealant faults on your snagging list early
- Wipe joints with warm soapy water
Follow the cure time we give you before the area gets wet. Most silicones need around a day before water reaches them.
Report failed sealant to the builder while you are in the snagging period. Once it ends, the repair may be down to you.
What we do, step by step
We keep the work tidy and contained to the joints we are treating. Expect the work to take a few hours for most snagging lists, longer for a run of plots, and we tell you how long to leave it before we go. Somewhere like Neatham needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip 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.
- Joints are vacuumed and cleaned of building dust.
- 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.
Getting ready for the visit
- Tell us if parking is tricky
- For indoor joints, keep the area dry beforehand if you can
- Clear the area around the work
Ask for a quote
Asking for a quote is easy: let us know the job and the location and its rough size. A few photos by email make the job easier to understand.
Advice
How we quote for new build mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- How many rooms, windows or areas are involved
- When we can work, for business premises
- How much there is to do
- Any mould that needs treating
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.
Helping us quote
To help us quote quickly, let us know:
- The problem you’ve noticed
- Access, such as stairs, a lift or height
- If someone has resealed it before
- Pictures of the joints, sent by email
Want a quote for new build mastic? Please ring 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and give you a clear price before we start.
Honest limits
New sealant cannot fix everything, and we’d rather say so up front. It won’t solve:
- Disputes or warranty claims with your builder
- A tray or bath that isn’t properly supported, until it’s fixed
- Settlement cracks that need a surveyor
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
Where we work in Neatham
- Windows & doors
- Plot handovers
- Show homes
- Bathrooms & en suites
- Kitchens
- Skirting & floors
Neatham questions
Do you cover Neatham for new build mastic?
Yes, Neatham is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we will give you a clear price.
Do you work for landlords with property near Alton station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
What do you need from me for a quote?
The location, the problem and the rough size of the job. If you can, email a few pictures.
How much does new build mastic cost in Neatham?
We do not publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Can you reseal over the builder’s sealant?
No. New silicone will not bond to old silicone, so sealing over the top fails quickly. The old sealant always comes out first.
My new home is still under warranty. Should I contact you?
Start with your builder while their snagging or warranty period runs. After that, or if their repair keeps failing, we can do it with our one-year guarantee.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Also near Neatham
What else we do in Neatham
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Why it’s worth doing now in Neatham
Running a new bead over the builder’s sealant might look tidy for a few weeks, but it cannot bond to what’s underneath. A lasting seal starts with removing the old one completely. Around Neatham, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, ring 0345 464 0079 or email us and we will give you an honest view and a quote.
Why Neatham customers choose us
- Anti-fungal sanitary silicone in wet areas
- A sealant colour to suit the surroundings
- Domestic, commercial and hotel work
- More than 20 years in sealant work
Read what affects the cost or what customers say.
New build mastic around Neatham
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you’ve bought a new home near Alton station, the sealant around baths, showers and frames is worth checking in the first year or two. Around Neatham, as everywhere, new build mastic is only as good as the preparation behind it.
Neatham is about 2 miles north-east of Alton, in Hampshire. Across the GU34 area, we can carry out new build mastic at your property. Neatham is one of 683 places in Hampshire where we work. For nearby work, see our Reading page, about 20 miles away.
Work in GU34 is quoted and booked the same way as anywhere else. Nearby, we also carry out new build mastic in Holybourne (1 mile north-west), Wyck (1 mile south-east), Upper Froyle (1 mile north-east), Alton (2 miles south-west) and East Worldham (2 miles south). Larger places within reach include Basingstoke (10 miles north-west), Farnborough (12 miles north-east), Fleet (9 miles north-east), Aldershot (10 miles north-east), Petersfield (11 miles south) and Yateley (13 miles north).
Landmarks near Neatham
Around Neatham, our work takes us to homes and buildings near Treloar School, White Hart pub and Eggar's School. The nearest railway station is Alton station, roughly 1.3 miles south-west. Nearby you will also find Allen Gallery (1.6 miles south-west) and Alton Community Hospital (2.6 miles south-west). Open spaces near Neatham include Holybourne Hill.
Landlords, agents and businesses in Neatham
We work for letting agents and landlords as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.