Hampshire · England
New-build mastic & snagging in Gosport, Hampshire
Plot mastic for developers and snagging failed sealant in new homes in Gosport, with a one-year guarantee on every job. Ask us for a quote.
- Shower seals failing in the first year or two
- Gaps behind new kitchen upstands
- Messy sealant that spoils new finishes
Landlord and commercial work in Gosport
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
If you manage several properties in or around Gosport, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
About our new build mastic in Gosport
Some new-home owners let the house settle before resealing. That makes sense for small gaps that are just cosmetic, but a seal that is letting water through needs doing now. We work on kitchens, bathrooms & en suites and show homes, and people most often call us about sealant applied over dusty or wet surfaces and internal frame sealant that has split.
Work in a small place like Gosport 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’ll put it right.
- Place
- Gosport (SO51)
- Region
- Hampshire
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Gosport: your questions answered
I let a flat near Chandlers Ford station. Can you help?
Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Is Gosport within the area you cover?
Yes, we do. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints, and we clear up when we are done.
Do you work through snagging lists?
Yes. Send the list and a few photos of the sealant items, and we will quote. We’ll tell you if anything on it isn’t a sealant job.
Is the work guaranteed?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we’ll sort it.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status, and we are fully insured.
How do I get a quote for new build mastic in Gosport?
Size, access and the old material all affect the cost. Ask us for a quote and we’ll talk you through it.
Can I add another job to the visit?
Of course. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Why it’s worth doing now in Gosport
A tube of sealant from the DIY shop won’t fix the cause: dust, no primer and old sealant left in the joint. Proper removal and preparation are what make it last. In a small place like Gosport, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or send us an email.
Why book with us
- White, clear, grey or coloured to suit, where the product allows
- Quality sealants from Arbo and Everbuild
- Rated 4.9 stars on Google
- An ARBOMaster approved applicator
Take a look at our cost guide or our reviews.
DIY sealant or a professional job?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so just mention it when you contact us.
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. A few tips:
- Check bath and shower seals every few months as the house settles
- Clean sealant with mild detergent, not abrasives
- Get a leaking seal dealt with right away
- Keep water off fresh sealant until it has cured
Don’t stand on the bath edge or the lip of the tray in the first few weeks. If a bath or tray moves when you stand in it, get it looked at.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black saves a harder job later.
What affects the quote in Gosport
For a quick quote, just ask. What matters most is:
- How many areas need sealing
- Any mould that needs treating
- The product the joint needs
- The old material and how stubborn it is
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first.
Helping us quote
You do not need to know the technical terms. It helps if you can tell us:
- Whether it has been sealed before
- If it’s domestic, commercial or a hotel
- Where the property is
- Photos by email, if that is easy
It all starts with a short chat. 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, ring 0345 464 0079 or email us.
New homes and floors in Gosport
The South East is one of 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 Gosport, as everywhere, new build mastic is only as good as the preparation behind it. If you’ve bought a new home near Chandlers Ford station, the sealant around baths, showers and frames is worth checking in the first year or two.
Gosport is about 2 miles east of Romsey, in Hampshire. Jobs in Gosport get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. We cover 683 towns and villages across Hampshire, large and small. For nearby work, see our Southampton page.
Our applicators cover all of the SO51 postcode area for new build mastic. Neighbouring places we cover for new build mastic include Ampfield (1 mile north-east), Crampmoor (1 mile west), Knapp (1 mile north-east), Broadgate (1 mile east) and Lower Slackstead (2 miles north). Within a short drive, we also cover Winchester (6 miles north-east), Eastleigh (5 miles south-east), Fareham (15 miles south-east), Andover (14 miles north), Totton (7 miles south-west) and Hedge End (8 miles south-east).
What’s near Gosport
Around Gosport, our work takes us to homes and buildings near White Horse Public House and The Mountbatten School. The closest station to Gosport is Chandlers Ford station, about 2.6 miles south-east. A little further out are King Johns House (2.9 miles west) and Romsey Community Hospital (2.2 miles west). Open spaces near Gosport include Emer Bog and Baddesley Common.
The process
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes a few hours for most snagging lists, longer for a run of plots and we leave things clean and tidy. For a village or hamlet like Gosport, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. 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.
How to prepare
- Let us know about stairs, lifts or work at height
- For indoor joints, keep the area dry beforehand if you can
- Let us know about earlier repairs to the joints
Getting a quote
Want a quote for new build mastic? Please phone 0345 464 0079 or drop us an email with a few details. You’ll know what we plan to do, and what it will cost, before any work begins.
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When something else is needed
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- Your warranty claim itself, which is between you and the builder
- Cracking that points to a structural problem
- Movement caused by a poorly fitted tray or bath
If in doubt, phone 0345 464 0079 or drop us an email and we will say what we think before booking.
What we seal
- Windows & doors
- Kitchens
- Bathrooms & en suites
- Skirting & floors
- Plot handovers
- Show homes