Hampshire · England
New-build mastic & snagging in Segensworth, Hampshire
Problem with your new-build sealant joints in Segensworth? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Gaps opening as the house dries out and settles
- Worktop and upstand sealant coming away
- Skirting joints opening in the first winter
Why act early in Segensworth
A hairline gap at a skirting can wait, but water getting through can’t. Not sure whether yours can wait? You can call 0345 464 0079 or drop us an email with a few pictures and we’ll tell you. Where a wall is exposed, as many are in small places like Segensworth, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and give you a clear quote before work begins.
Why book with us
- You choose the colour before work begins
- A sealant colour to suit the surroundings
- A choice of colours where the product allows
- An ARBOMaster approved applicator
See our cost guide or customer reviews.
How we handle new build mastic in Segensworth
Failed shower seals, gaps along the skirting and messy beads are common items on a new-home snagging list. While the builder’s snagging or warranty period runs, report it to them first. We work on kitchens, windows & doors and bathrooms & en suites, and the jobs we see most are new-build shower sealant that has already split and worktop and upstand sealant coming away.
Work in a small place like Segensworth just needs the journey and access planning, and once on site, the job is the same as anywhere.
All our work is covered by our 12-month guarantee, wherever you are in Hampshire.
- Place
- Segensworth (PO15, SO31)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Looking after it afterwards
Good habits help new joints last longer. A few tips:
- Watch for new gaps as the house dries out
- Keep photos and emails about snagging items
- Follow the cure time we give you
- Put sealant faults on your snagging list early
Leave the sealant for the cure time we give you before showering or bathing. Silicone is normally left for about a day before water reaches them.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Catching it early keeps the fix to the sealant.
Nearby places to Segensworth
Other services in Segensworth
How we quote for new build mastic
Your quote is based on your job. We take into account:
- Whether old sealant or filler has to be cut out
- Whether the work is at height
- How many areas need sealing
- Any working-time requirements on site
Doing several joints on one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
What we need to know
To make quoting easier, let us know:
- Where the property is
- Roughly how big the job is
- Whether it has been sealed before
- A few pictures by email, if you can
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. Whenever you’re ready, phone 0345 464 0079 or drop us an email.
Common problems we fix in Segensworth
The wrong product is sometimes used in the wrong place: caulk where water collects, or a rigid product on a moving joint. Neither lasts long.
The most common problems we see are:
- Sealant applied over dusty or wet surfaces
- Plot mastic for developers ahead of handover
- Cracked caulk along new skirting
- Cracked sealant around new window and door frames
For new homes near Swanwick station, it’s worth checking the sealant early, while snags are still fresh.
What your quote should include
- When the joint can take water or movement
- Whether they seal over old material or remove it
- What the quote includes, VAT included or not
- Whether you can choose the colour
Questions from Segensworth
Is Segensworth within the area you cover?
Yes. Segensworth is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Is Segensworth in your area for new build mastic?
Yes, Segensworth is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we’ll send you a clear quote.
How much does new build mastic cost in Segensworth?
It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or drop us an email with a short description of the job.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.
Which products do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Is there a guarantee?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we will put it right.
Do the sealants smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Can you reseal over the builder’s sealant?
No. Over-sealing traps mould and water and soon fails. We remove every bit of the old bead before resealing.
How it works
When we arrive, we look over the joints with you first. We protect the surfaces around the joints before any work starts. The work usually takes anything from a few hours to several days, depending on the number of plots. Somewhere like Segensworth needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
Getting ready for the visit
- Tell us about any water getting in
- Let us know about stairs, lifts or work at height
- Plan for the work area to be out of bounds to pets and children
Ask for a quote
We do not publish a price list. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or email us.
Related advice
Honest limits
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Structural cracks in walls or ceilings
- Leaks from pipes, valves or wastes, which need a plumber
- Broken tiles or a split tray
If you are not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer before booking.
Joints and surfaces we work on
- Bathrooms & en suites
- Skirting & floors
- Kitchens
- Plot handovers
- Show homes
- Windows & doors
Surface by surface
Bathrooms and en suites
En suite seals are easy to miss on a snagging list until they leak. Resealing properly keeps water where it belongs.
Plot handovers
We work through plots to your schedule, sealing each room ready for handover. Joints are prepared properly before sealing.
New homes and floors in Segensworth
Segensworth is within about 3 miles of the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. 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.
In and around Segensworth, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Segensworth is about 3 miles north-west of Fareham, in Hampshire. Whether you are in the middle of Segensworth or further out, we cover new build mastic for every kind of property. Across Hampshire, we cover 683 places, and Segensworth is one of them. You can also see our page for Southampton, roughly 7 miles from Segensworth.
Here we cover the PO15 and SO31 postcode area for new build mastic. If you need new build mastic at a property on Witherbed Lane, Brunel Way and Concorde Way or a nearby road, we can help. Neighbouring places we cover for new build mastic include Titchfield Park (1 mile south), Park Gate (1 mile west), Locks Heath (1 mile south-west), Whiteley (1 mile north) and Titchfield Common (1 mile south-west). Further out, we also cover Winchester (13 miles north), Gosport (6 miles south-east), Havant (11 miles east), Eastleigh (8 miles north-west), Fareham (3 miles south-east) and Horndean (11 miles east).
What’s near Segensworth
In Segensworth, that means homes and buildings near The Henry Cort Community College. Segensworth’s nearest station is Swanwick station, about 0.9 miles north-west of the centre. Well-known places in the area include Fareham Community Hospital (1.2 miles west) and St Andrew's Castle (3.2 miles west). Not far away are Swanwick Lakes.