Hampshire · England
New Build Mastic in Wherwell Wood
Our applicators work in Wherwell Wood on plot mastic for developers and snagging failed sealant in new homes. Old material cut out, joints cleaned and sealed neatly.
- Kitchen sealant that has pulled off the wall
- Sealant applied over dusty or wet surfaces
- Cracked sealant around new window and door frames
Joints and finishes in Wherwell Wood homes
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For new homes near Andover station, it’s worth checking the sealant early, while snags are still fresh.
Wherwell Wood is about 3 miles south-east of Andover, in Hampshire. Wherever you are in the SP11 postcode area, our applicators can take on new build mastic. Wherwell Wood is one of 683 places in Hampshire where we work. For nearby work, see our Southampton page, about 18 miles away.
Every address in SP11 is within our area for new build mastic, from the main roads to the quietest streets. We also cover Wherwell (1 mile south-east), Goodworth Clatford (1 mile west), Cottonworth (1 mile south), Fullerton (2 miles south) and Chilbolton (2 miles south-east). We also work in nearby towns such as Winchester (10 miles south-east), Eastleigh (15 miles south), Andover (3 miles north-west), Chandler's Ford (13 miles south), Romsey (13 miles south) and Hyde (10 miles south-east).
Near you in Wherwell Wood
Typical jobs here are in homes near White Lion Public House and Winton Community Academy and the streets around them. Wherwell Wood’s nearest station is Andover station, roughly 2.9 miles north-west of the centre. Nearby you’ll also find Andover War Memorial Hospital (3.2 miles north-west) and Andover Museum (2.6 miles north). Green spaces nearby include Mill Lake and Anton Lakes.
How we handle new build mastic in Wherwell Wood
In a new home, every joint should have a clean, even bead. Smeared, patchy or cracked sealant is worth sorting early, before water reaches anything behind it. If you have smeared, uneven beads picked up at snagging and new-build shower sealant that has already split, we can put it right, on kitchens, show homes and skirting & floors alike.
In a village or hamlet like Wherwell Wood, new homes are more likely to be a barn conversion or a handful of houses than a big estate. Each still needs its sealant and floor joints finished properly.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Place
- Wherwell Wood (SP11)
- Region
- Hampshire
- Guarantee
- 12 months on all our work
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What the job involves on each surface
Skirting and floors
Gaps under skirting are one of the most common new-build snags. A flexible sealant closes it without cracking like caulk.
Kitchens
Sink joints are wet all the time. We use a sealant suited to kitchens, food-safe where it’s needed.
The process
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself generally takes a few hours in a single home, depending on the size of the job. Somewhere as small as Wherwell Wood, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
How to prepare
- Try not to wet indoor joints just before the visit
- For business premises, tell us about site rules or sign-in
- Mention any parking rules near the property
Ask for a quote
For 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.
Advice
Keeping the joints in good condition
How long the joints last depends on use and care. We suggest:
- Follow the cure time we give you
- Photograph failed sealant before it’s redone
- Check bath and shower seals every few months as the house settles
- Clean sealant with mild detergent, not abrasives
Avoid standing on the rim of the bath or the edge of the tray while the sealant cures. Report any movement in a bath or tray.
Report failed sealant to the builder while you’re in the snagging period. After that, putting it right may fall to you.
Towns and villages near Wherwell Wood
More services for Wherwell Wood
Wherwell Wood: your questions answered
Do you cover smaller places like Wherwell Wood?
Yes, Wherwell Wood is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Is Wherwell Wood in your area for new build mastic?
Yes. Our work covers London and the South East, and Wherwell Wood is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing.
Where do you work from?
Mr Mastic is based in Crawley. Our applicators cover Wherwell Wood.
Do I need to be at home?
That depends on where the joints are. For work indoors, someone needs to let us in, and for outside work we’ll agree access with you when we book.
How long before the joint can be used?
Cure times vary by product and the conditions. Before we leave, we’ll tell you the cure time.
Can you reseal over the builder’s sealant?
No. Sealing over old sealant looks fine for a few weeks, then lifts. We remove every bit of the old bead before resealing.
Do you use white or clear sealant?
White and clear are the most common, but other colours are available. We match the colour to the finish before we begin.
Can I send you my snagging list?
Yes. Send it with pictures and we’ll quote for the sealant items. Items that need a plumber, tiler or the builder are flagged.
Can I do it myself?
The biggest DIY mistake is sealing over old sealant. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
We also work for property managers and facilities teams in Wherwell Wood and across Hampshire. Several sites can be quoted together.
What we are called out for in Wherwell Wood
The first winter with the heating on dries a new home quickly. Gaps open along skirting, frames and worktops and cracked sealant shows up.
Look out for these signs:
- Untidy sealant flagged on a snagging list
- Plot mastic for developers ahead of handover
- Frame joints opening as the plaster dries
- Cracks appearing as a new home settles
In and around Wherwell Wood, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- Who turns up on the day
- Whether the sealant suits the joint
- Is the old sealant removed completely?
- How the colour is chosen
When it is not the sealant
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Deciding who is responsible under a builder’s warranty
- Settlement cracks that need a surveyor
- Baths and trays that move too much for sealant to cope with
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.
Surfaces we seal
- Show homes
- Skirting & floors
- Windows & doors
- Plot handovers
- Kitchens
- Bathrooms & en suites