Hampshire · England
Locks Heath New Build Mastic
New build mastic in Locks Heath from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Gaps opening as the house dries out and settles
- Gaps behind new kitchen upstands
- New-build shower sealant that has already split
New build mastic in Locks Heath, done properly
Snagging sealant properly means taking the failed bead out completely. Fresh silicone cannot bond to the old layer, so it all comes out before we clean, dry and reseal. We work on show homes, kitchens and windows & doors, and the jobs we see most are joints pulling apart as timber shrinks and internal frame sealant that has split.
For a new home in or near Locks Heath, it’s worth checking the sealant early. Gaps at skirtings, shower seals pulling away and missing mastic around frames are common snags.
You get a one-year guarantee, the same in Locks Heath as everywhere else we work.
- Where
- Locks Heath (SO31, PO14, PO15)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

Aftercare tips
A little care helps the new joints last. Our advice:
- Act quickly if a seal starts to leak
- Record problems with dated pictures
- Ventilate bathrooms well, especially in the first year
- Check bath and shower seals every few months as the house settles
Keep an eye on the joints over the first couple of years. Hairline gaps can open as timber and plaster dry.
A seal that splits early is often a sign of movement. Have it resealed, and the tray or bath checked, before it gets worse.
What new build mastic looks like in Locks Heath
Locks Heath is close to the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. 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 Swanwick station, the sealant around baths, showers and frames is worth checking in the first year or two. Around Locks Heath, as everywhere, new build mastic is only as good as the preparation behind it.
Locks Heath is about 3 miles west of Fareham, in Hampshire. Every kind of property in Locks Heath can book us for new build mastic. The work is guaranteed for a year. 683 places in Hampshire are on our list. Southampton is on our list too, about 7 miles from Locks Heath.
Jobs for new build mastic in SO31, PO14 and PO15 is quoted and booked the same way as anywhere else. We cover properties on Church Road, Lower Church Road and Laxton Close and the roads around them. Neighbouring places we cover for new build mastic include Titchfield Common (1 mile south-east), Park Gate (1 mile north), Warsash (1 mile south-west), Sarisbury (1 mile north-west) and Segensworth (1 mile north-east). Within a short drive, we also cover Winchester (14 miles north), Gosport (6 miles south-east), Havant (12 miles east), Eastleigh (8 miles north-west), Fareham (3 miles east) and Horndean (12 miles east).
Around Locks Heath
Typical jobs here are in homes near Brookfield Community School and Language College and Jolly Farmer Public House, among other places. For rail, the closest station is Swanwick station, roughly 0.9 miles north. A little further out are St Andrew's Castle (2.2 miles west) and Carron Row Farm Museum (1.6 miles east). Green spaces nearby include Holly Hill Woodland Park.
How the visit works
All our tools and materials come with us in the van, so you do not need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. It normally takes a few hours for most snagging lists, longer for a run of plots. A visit to Locks Heath is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- Each joint is checked for movement before we start.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Before we arrive
- On commercial sites, let us know about site rules
- Let us know about stairs, lifts or work at height
- Keep pets and children clear of the area while we work
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved and give you a clear quote.
Advice
What affects the quote in Locks Heath
We do not publish a price list, because no two jobs are the same. The quote depends on:
- Mould in or behind the old joints
- When we can work, for business premises
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
We do not show prices on the website, because each job is priced on what it involves. Call for a quick quote.
Asking for a quote
When you call or email, these details help:
- If someone has resealed it before
- How many joints, rooms or windows are involved
- Pictures of the joints, sent by email
- The type of property
Want a quote for new build mastic? Please phone 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and send you a clear quote before we start.
Landlord and commercial work in Locks Heath
In hotels, rooms out of use cost money, so we plan the work room by room. We have worked in hotels as well as homes and businesses.
We work for landlords and letting agents as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
How the job changes by surface
Bathrooms and en suites
Baths, showers, basins and trays in new bathrooms are the most common new-build reseal. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.
Show homes
Show homes need sealant that looks right from day one. We lay neat, even beads in colours to suit the finishes.
Honest limits
To be straight with you, there are a few things sealant won’t fix:
- Structural cracks in walls or ceilings
- Disputes or warranty claims with your builder
- A tray or bath that is not properly supported, until it’s fixed
If in doubt, phone 0345 464 0079 or email us and we will say what we think.
Surfaces we seal
- Skirting & floors
- Bathrooms & en suites
- Kitchens
- Plot handovers
- Show homes
- Windows & doors
Also near Locks Heath
More services for Locks Heath
Your questions about new build mastic in Locks Heath
I let a flat near Swanwick station. Can you help?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.
Is Locks Heath in your area for new build mastic?
Yes, Locks Heath is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little, and any smell fades as they cure.
Where do you work from?
We work from Crawley. We cover Locks Heath and the rest of Hampshire.
Are you fully insured?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
Do you work for developers?
Yes. We take on second-fix sealant work across new plots. We clean and prime joints properly to keep callbacks down.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. Indoors, that normally means someone at home.
How long will you be here?
Most jobs take a few hours in a single home, including preparation and clearing up. Your quote will say how long we expect yours to take.
Should I try it myself first?
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
