Hampshire · England
New-build mastic & snagging in Abshot, Hampshire
New build mastic in Abshot from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Messy sealant that spoils new finishes
- Leaking shower tray seals in a new home
- Sealant work across a run of new homes
DIY sealant or a professional job?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
About our new build mastic in Abshot
A new house keeps drying out and settling for its first couple of years. Timber dries and shrinks, and baths and trays settle, so sealant that was laid quickly before handover often cracks. If you’re dealing with joints pulling apart as timber shrinks and sealant applied over dusty or wet surfaces, we can put it right, on windows & doors, bathrooms & en suites and show homes alike.
Somewhere as small as Abshot, new homes tend to be conversions, self-builds or a few houses rather than an estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
A 12-month guarantee comes as standard, so you’re covered after we have gone.

- Where
- Abshot (PO14)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How we quote for new build mastic
Jobs vary more than people expect. The main factors:
- When we can work, for business premises
- Whether old sealant or filler has to be cut out
- The type of sealant required
- How many rooms, windows or areas are involved
Doing several joints on one visit is normally more efficient than separate visits, so tell us about everything that needs sealing. We’ll send you a clear quote for the lot.
What to tell us for a quote
Before you ask for a quote, have a think about:
- Pictures of the joints, sent by email
- The address or postcode of the job
- The rough size of the job
- Whether it has been sealed before
To get a quote, phone 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.
What we are called out for in Abshot
A new house holds a lot of water from the build, which takes a year or two to dry out. Drying timber shrinks and pulls joints apart and the sealant has to cope with the movement.
People usually contact us when they notice one of these:
- Gaps behind new kitchen upstands
- Internal frame sealant that has split
- Skirting joints opening in the first winter
- Joints pulling apart as timber shrinks
If you’ve bought a new home near Swanwick station, the sealant around baths, showers and frames is worth checking in the first year or two.
What your quote should include
- Are they insured?
- Whether they seal over old material or remove it
- What the cure time is
- How the colour is chosen
Joints and finishes in Abshot homes
Abshot is close to the coast. New homes near the sea put their outside mastic to work from day one, so it’s worth checking at snagging. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In and around Abshot, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Abshot is about 3 miles west of Fareham, in Hampshire. Our applicators cover new build mastic for householders, landlords and businesses in Abshot and nearby. Our Hampshire coverage runs to 683 places, and Abshot is one of them. There’s also a page for Southampton, roughly 7 miles from Abshot.
We cover every part of the PO14 postcode area for new build mastic and the streets around it. We also cover Hook (1 mile west), Titchfield Common (1 mile north-east), Locks Heath (1 mile north), Warsash (1 mile north-west) and Titchfield (1 mile east). We also work in nearby towns such as Winchester (15 miles north), Gosport (6 miles south-east), Havant (12 miles east), Eastleigh (9 miles north), Fareham (3 miles east) and Horndean (12 miles east).
Near you in Abshot
Around Abshot, our work takes us to homes and buildings near Jolly Farmer Public House and Brookfield Community School and Language College and the streets around them. For rail, the closest station is Swanwick station, roughly 2 miles north. A little further out are Fareham Community Hospital (1.7 miles north) and Carron Row Farm Museum (1.7 miles north-east). Green spaces nearby include Holly Hill Woodland Park.
How it works
The work is kept neat and contained to the joints we are treating, so you can get on with your day. 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. In a small place like Abshot, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely.
- 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.
Getting ready for the visit
- Keep children and pets away from the work area
- Tell us about access, such as stairs, a lift or high-level joints
- Try not to wet indoor joints just before the visit
Ask for a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Advice
Surface by surface
Show homes
Tired or marked sealant in a show home can be renewed. The old bead comes out and a clean new one goes in.
Bathrooms and en suites
New-build bathrooms and en suites are where sealant fails most often. The old sealant comes out and anti-fungal sanitary silicone goes in after cleaning and priming.
Leave it or put it right?
Small cosmetic gaps can wait for the house to settle, but a leaking seal cannot. If you’re unsure which you have, phone 0345 464 0079 or send us an email with pictures. In a small place like Abshot, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why book with us
- Neat joints and a tidy finish
- An ARBOMaster approved applicator
- Sanitary silicone with an anti-fungal additive in wet areas
- Fully insured
See our cost guide or our reviews.
Places near Abshot
More services for Abshot
Abshot: your questions answered
Can you help a landlord with a rental near Swanwick station?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before we start.
Do you cover Abshot for new build mastic?
Yes. Our work covers London and the South East, and Abshot is part of that. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Are you insured?
Yes. We are fully insured, and we have been doing sealant work for more than 20 years.
When is the sealant fully cured?
Different products cure at different speeds, so please follow the time we give you.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Do you do commercial work?
Yes. We can plan bigger jobs in stages to suit the site.
Can you quote for more than one area?
Of course. Doing several areas at once is normally more efficient, so mention them when you ask for a quote.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Wait for the cure time before using a resealed shower
- Resist patching a failed seal with a tube from the DIY shop
- Ventilate bathrooms well, especially in the first year
- Avoid scourers and strong chemicals on sealant
Keep photos of the joints and any snagging correspondence with your builder. It’s useful if you need to raise other issues later.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Catching it early keeps the fix to the sealant and protects the rest of the house.
