Hampshire · England
New-build mastic & snagging in King's Somborne, Hampshire
New build mastic for King's Somborne and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Joints pulling apart as timber shrinks
- Internal frame sealant that has split
- Leaking shower tray seals in a new home
About our new build mastic in King's Somborne
A new build should have a neat, sound bead at every joint. When the finish is smeared, patchy or already cracking, it’s worth putting right early, before water reaches anything behind it. If you have worktop and upstand sealant coming away and internal frame sealant that has split, we can put it right.
Older homes in small places like King's Somborne often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
We stand behind the work with a one-year guarantee.
- Location
- King's Somborne (SO20)
- Region
- Hampshire
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
What happens on the day
We keep the work tidy and contained to the area we are working on, so you can get on with your day. The job generally takes anything from a few hours to several days, depending on the number of plots, and we explain the cure time before we leave. For a village or hamlet like King's Somborne, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we work through your snagging list or plot schedule with you.
- We cut out every bit of the failed or messy sealant.
- Each joint is cleaned of dust and grit, then primed if required.
- A sealant chosen for each area goes in and is tooled smooth.
- Each area is checked and left with its cure time.
Before we arrive
- Try not to wet indoor joints just before the visit
- Let us know about parking restrictions
- Mention any leaks or damp you’ve noticed
Ask for a quote
Want a quote for new build mastic? Please ring 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and give you a clear price before any work starts.
Advice
New homes and floors in King's Somborne
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around King's Somborne, as everywhere, new build mastic is only as good as the preparation behind it.
King's Somborne is about 6 miles north of Romsey, in Hampshire. We provide new build mastic to householders, landlords and businesses in King's Somborne and the surrounding area. King's Somborne is one of 683 towns and villages in Hampshire where we work for new build mastic. For nearby work, see our Southampton page, about 12 miles away.
Here we cover the SO20 postcode area for new build mastic. Streets in the area include Church Road, Old Palace Farm and Forge Close, and we cover them all. Being close to the A3057, King's Somborne is easy for our applicators to reach for new build mastic. Other places close to King's Somborne include Ashley (1 mile east), Little Somborne (2 miles north-east), Up Somborne (2 miles north-east), Braishfield (4 miles south) and Lower Slackstead (4 miles south-east). Within a short drive, we also cover Winchester (7 miles east), Eastleigh (10 miles south-east), Andover (9 miles north), Totton (11 miles south), Chandler's Ford (8 miles south-east) and Hedge End (14 miles south-east).
Near you in King's Somborne
Around King's Somborne, our work takes us to homes and buildings near The Crown Public House. The closest station to King's Somborne is Mottisfont & Dunbridge station, roughly 4 miles south-west. Other landmarks nearby include Romsey Community Hospital (5.8 miles south).
Quotes for new build mastic in King's Somborne
You will get a clear quote before work begins. It takes into account:
- Mould in or behind the old joints
- The product the joint needs
- The amount of work
- When we can work, for business premises
The cost reflects the work involved, not a rough estimate. That’s why we ask about the job first and send you a clear quote before we start.
Asking for a quote
You do not need to know the technical terms. It helps if you can tell us:
- A few photos by email, if you can
- The type of property
- What’s wrong with the joints now
- How many joints, rooms or windows are involved
Quotes start with a quick conversation. 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, call 0345 464 0079 or drop us an email.
How the job changes by surface
Plot handovers
Send us the schedule and any sealant specification. We seal bathrooms, kitchens, frames and floors.
Skirting and floors
Wet-area floor joints need a flexible seal. They get a flexible, water-resistant sealant.
Honest limits
Honest advice matters more to us than a booking, so here’s what new sealant will not do:
- Cracked trays, tiles or worktops
- A tray or bath that is not properly supported, until it’s fixed
- Disputes or warranty claims with your builder
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
Joints and surfaces we work on
- Show homes
- Kitchens
- Plot handovers
- Bathrooms & en suites
- Windows & doors
- Skirting & floors
What we are called out for in King's Somborne
Sealant applied onto damp surfaces does not bond well. Site programmes do not always leave time for joints to dry.
If you can see any of these, it’s time to have the joints looked at:
- Plot mastic for developers ahead of handover
- Worktop and upstand sealant coming away
- Untidy sealant flagged on a snagging list
- Cracks appearing as a new home settles
For new homes near Mottisfont & Dunbridge station, it’s worth checking the sealant early, while snags are still fresh.
Before booking anyone
- What insurance they hold
- Is VAT in the price?
- When the joint can take water or movement
- How long the guarantee is
FAQs for King's Somborne
Is King's Somborne within the area you cover?
Yes, we do. 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 King's Somborne in your area for new build mastic?
Yes. We work across London and the South East, and King's Somborne is part of that. You can call 0345 464 0079 or email us and tell us what needs doing, and we will give you a clear price.
Do you take out the old sealant first?
Yes, every time. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
Can landlords and businesses book you?
Yes. We work for homeowners, landlords, letting agents, businesses and hotels.
Can you match the sealant colour to my new kitchen or bathroom?
Most bathroom joints are white or clear, but sealant comes in other colours too. We choose one to suit the room and agree it with you.
Do you take on second-fix sealing for builders?
Yes. We carry out plot mastic and second-fix sealing for builders and developers. Send us the plot schedule and we will quote.
Can I add another job to the visit?
Yes. More than one area can be quoted together.
Is it messy?
No. The area is protected while we work and cleaned up afterwards.
Places near King's Somborne
What else we do in King's Somborne
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Record problems with dated pictures
- Clean sealant with mild detergent, not abrasives
- Open a window or run the fan after bathing
- Wait for the cure time before using a resealed shower
Leave the sealant for the cure time we give you before showering or bathing. Silicone is usually left for about a day to cure enough for use.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Catching it early keeps the fix to the sealant and protects the rest of the house.
Leave it or put it right?
DIY kits do not solve the main problems with new-build sealant: grit, unprimed surfaces and old layers underneath. Proper removal and preparation are what make it last. Where a wall is exposed, as many are in small places like King's Somborne, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we’ll talk you through it.
Why us?
- An ARBOMaster approved applicator
- Rated 4.9 stars on Google
- You choose the colour before work begins
- Arbo and Everbuild products
Read what affects the cost or our reviews.