Hampshire · England
New Build Mastic in Old Alresford
We cover Old Alresford for plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Skirting joints opening in the first winter
- Gaps opening as the house dries out and settles
- Untidy sealant flagged on a snagging list
About our new build mastic in Old Alresford
Some new-home owners let the house settle before resealing. That makes sense for small gaps that are just cosmetic, but a failed shower or bath seal shouldn’t wait. Typical jobs include leaking shower tray seals in a new home and gaps between new skirting and floors, across skirting & floors, plot handovers and windows & doors.
For a small place like Old Alresford, the journey and access are planned in advance, and the work itself is the same as on any site.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Place
- Old Alresford (SO24)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
A DIY attempt doesn’t rule out a professional job. We cut it out and start again.
When to call us in Old Alresford
The first winter with the heating on dries a new home quickly. Skirting, frames and worktops pull away slightly.
It’s worth asking for a quote if you see:
- Cracked sealant around new window and door frames
- Shower seals failing in the first year or two
- Sealant applied over dusty or wet surfaces
- Second-fix sealing on new plots
For jobs in and around Old Alresford, choosing the right material for each joint is as important as a tidy finish.
Comparing quotes
- How much experience the applicator has
- What insurance they hold
- Which sealant they’ll use, and why
- What happens if the job turns out different
Places near Old Alresford
Other services in Old Alresford
What new build mastic looks like in Old Alresford
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.
In and around Old Alresford, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Old Alresford is about 7 miles north-east of Winchester, in Hampshire. If you need new build mastic in Old Alresford, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We cover Hampshire from our Crawley base, Old Alresford included. Old Alresford is one of 683 towns and villages in Hampshire we cover. We also work in Southampton, around 16 miles away.
All of SO24 is covered for new build mastic, from the main roads to the quietest streets. If you need new build mastic at a property on Kiln Lane, Colden Lane and The Brook or a nearby road, our applicators can take on the job. If you’re just outside Old Alresford, we cover Bighton (1 mile east), Northington (2 miles north-west), Totford (3 miles north-west), Brown Candover (3 miles north) and Upper Wield (4 miles north-east). Further out, we also cover Basingstoke (11 miles north), Winchester (7 miles south-west), Eastleigh (12 miles south-west), Horndean (15 miles south-east), Chandler's Ford (13 miles south-west) and Alton (9 miles east).
Near you in Old Alresford
Locally, jobs take us to homes and businesses close to The Globe Inn and the streets around them. Nearby you will also find Barton Castle (3.1 miles north-east).
How to look after the new joints
Looking after new joints is easy:
- Get a leaking seal dealt with right away
- Watch for new gaps as the house dries out
- Do not seal over failed sealant yourself
- Wait for the cure time before using a resealed shower
Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day.
Lifting sealant traps moisture and mould behind it. Dealing with it before it goes black saves a harder job later.
Old Alresford questions
Is Old Alresford within the area you cover?
Yes. Old Alresford 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.
Do you cover Old Alresford for new build mastic?
Yes. We work across London and the South East, and Old Alresford is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we will give you a clear price.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
When is the sealant fully cured?
That depends on the sealant used, so please follow the time we give you.
Should I wait before resealing?
That depends on the joint. Failed seals in wet areas need doing now, while small cosmetic gaps can wait a while.
Do the sealants smell?
Possibly a little. It fades as the sealant cures.
Do you remove the old sealant?
Yes. We cut out all the old sealant and clean the joint before resealing.
Why does sealant fail so quickly in new builds?
It’s common, and there are normally two reasons: the house moving as it dries, and sealant that never bonded properly. A proper reseal deals with both.
What affects the cost of new build mastic
We don’t publish a price list, because jobs vary so much. The quote depends on:
- The size of the job
- The product the joint needs
- Whether old sealant or filler has to be cut out
- Any working-time requirements on site
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
What we need to know
Photos help, but a description is a good start. Please mention:
- Whether it’s a home or a business
- Where the property is
- Roughly how big the job is
- If someone has resealed it before
For new build mastic in Old Alresford, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before any work starts.
The process
There is not much for you to do on the day. Show us the job and we’ll take it from there. The job generally takes a few hours for most snagging lists, longer for a run of plots from start to finish. Somewhere like Old Alresford 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.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- 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.
- Each bead is tooled and the cure times explained.
Preparing for the visit
- On commercial sites, let us know about site rules
- Let us know about parking restrictions
- Keep children and pets away from the work area
Getting a quote
There’s no standard price list, because every job is different. Instead, we give you a clear quote for your job. To arrange one, call 0345 464 0079 or send us an email.
Related advice
Why deal with it now?
A quick bead over the top of the old sealant can look fine at first, but it can’t bond to what’s underneath. A lasting seal starts with removing the old one completely. In a small place like Old Alresford, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
What it costs depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. We give a clear quote before we start, so you know where you stand.
Why us?
- Sanitary silicone with an anti-fungal additive in wet areas
- Experience in homes, commercial sites and hotels
- Trusted Arbo and Everbuild sealants
- 20+ years of sealant experience
See our cost guide or our reviews.
Surface by surface
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We cut out the cracked bead and reseal with a flexible sealant.
Skirting and floors
Gaps under skirting are one of the most common new-build snags. We seal it with a flexible sealant that copes with the movement.