Hampshire · England
New-build mastic & snagging in North Boarhunt, Hampshire
New build mastic across North Boarhunt and nearby, with every bit of old sealant taken out first.
- Gaps behind new kitchen upstands
- Shower seals failing in the first year or two
- Cracks appearing as a new home settles
How we handle new build mastic in North Boarhunt
Some new-home owners let the house settle before resealing. For small cosmetic gaps, that’s reasonable, but a seal that’s letting water through needs doing now. We’re often asked to deal with sealant work across a run of new homes and kitchen sealant that has pulled off the wall, on bathrooms & en suites, skirting & floors and kitchens.
Around North Boarhunt, older homes often have timber floors that move through the year, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
Big or small, you get the same 12-month guarantee in North Boarhunt and across Hampshire.
- Where
- North Boarhunt (PO17)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What new build mastic looks like in North Boarhunt
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 Portchester station, the sealant around baths, showers and frames is worth checking in the first year or two.
North Boarhunt is about 4 miles north-east of Fareham, in Hampshire. We provide new build mastic to homeowners, landlords and businesses in North Boarhunt and nearby. Our area takes in 683 places across Hampshire. We also work in Portsmouth, about 7 miles from North Boarhunt.
Postcode districts we cover here for new build mastic: PO17. We cover properties on Trampers Lane and Bere Farm Lane and the roads around them. Other places close to North Boarhunt include Hundred Acres (1 mile north-west), Wickham Common (1 mile west), Boarhunt (2 miles south), Crockerhill (2 miles south-west) and Southwick (2 miles south-east). Within a short drive, we also cover Winchester (14 miles north-west), Gosport (6 miles south), Havant (7 miles east), Eastleigh (10 miles north-west), Fareham (4 miles south-west) and Horndean (6 miles east).
Around North Boarhunt
The nearest railway station is Portchester station, about 3.3 miles south of the centre. Well-known places in the area include Fareham Shopping Centre (3.2 miles south-west) and Portchester Castle (4.2 miles south). Open spaces near North Boarhunt include Portsdown Hill and St Clair's Meadow.
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
A neglected joint can let water reach the structure, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
DIY sealant or a professional job?
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 doesn’t work out, we can still put it right.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Signs you need new build mastic in North Boarhunt
New homes are full of moisture from plaster, screed and concrete, which takes a year or two to dry out. As it does, timber shrinks and joints open and the sealant has to cope with the movement.
Most people get in touch after spotting something like this:
- Beads laid onto grit and dust from the build
- Cracked sealant around new window and door frames
- Skirting joints opening in the first winter
- Cracks appearing as a new home settles
In and around North Boarhunt, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Questions to ask before booking
- Whether they seal over old material or remove it
- What guarantee comes with the work
- Whether VAT is included
- What happens if they find a problem under the old sealant
When something else is needed
We won’t take on work that won’t last, so here’s what sealant can’t put right:
- Structural cracks in walls or ceilings
- Your warranty claim itself, which is between you and the builder
- Cracked trays, tiles or worktops
If you are not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer before booking.
Where we work in North Boarhunt
- Show homes
- Windows & doors
- Skirting & floors
- Kitchens
- Bathrooms & en suites
- Plot handovers
Surface by surface
Skirting and floors
New homes often develop a gap between skirting and floor. A flexible sealant closes it without cracking like caulk.
Windows and doors
External mastic around new windows and doors is sometimes rushed or missed. It’s resealed with an exterior sealant suited to the frame and wall.
Nearby places to North Boarhunt
More services for North Boarhunt
What we do, step by step
You do not need to clear the whole room or building, only the area right around the joints. Everything nearby is protected, and the work takes anything from a few hours to several days, depending on the number of plots for a typical job. Somewhere as small as North Boarhunt, access is often the only tricky part. 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.
- Every bit of the old builder’s sealant is cut out, with no layer left behind.
- Joints are vacuumed and cleaned of building dust.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
Preparing for the visit
- Mention if the joints have been sealed before
- Clear items away from the joints we’re working on
- On commercial sites, let us know about site rules
Getting a quote
For a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. We will give you a clear price before any work starts.
Advice
Common questions in North Boarhunt
I let a flat near Portchester station. Can you help?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll give you a clear quote.
Do you cover smaller places like North Boarhunt?
Yes. North Boarhunt is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and we’ll quote it together.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures.
Do I need to be at home?
We need access to the joints, so we will agree that with you when we book. For inside work, that normally means someone being in.
Do you guarantee your work?
Yes, for a year. If anything is not right with the work within the year, let us know and we will sort it.
Is it worth resealing while the house is still settling?
That depends on the joint. Failed seals in wet areas need doing now, but cosmetic gaps can wait for movement to slow.
Why has my new-build shower seal failed already?
New homes dry out and move in their first couple of years, and sealant is often applied quickly onto dusty surfaces. Either can make it fail early.
Leave it or put it right?
Resealing everything on a snagging list in one visit is normally simpler than chasing joints one at a time. It’s one visit, one quote and one set of cure times. Around North Boarhunt, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and give you a clear price before work begins.
Why North Boarhunt clients choose us
- We agree the colour with you first
- 12-month guarantee on every job
- More than 20 years in sealant work
- Sanitary silicone with an anti-fungal additive in wet areas
Read what affects the cost and our reviews.