Hampshire · England
New-build mastic & snagging in Hedge End, Hampshire
New-build sealant joints in Hedge End need attention? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Cracks appearing as a new home settles
- Plot mastic for developers ahead of handover
- Shower seals failing in the first year or two
Why act early in Hedge End
It often makes sense to do all the sealant items on a snagging list together. It’s one visit, one quote and one set of cure times to plan around. Gaps in sealant and mould in the bead never get better on their own, and in a busy household in Hedge End they spread with every shower and every downpour. Replacing the sealant now is the simplest fix.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
Why book with us
- ARBOMaster approved applicator
- You choose the colour before work begins
- Fully insured
- Colour picked to suit the job
Take a look at how sealant jobs are priced or our reviews.
New build mastic in Hedge End
Dust is the enemy of new-build sealant. Each joint is cleaned of dust and primed where the product calls for it, so the new bead bonds properly instead of bonding to the dust. We work on windows & doors, show homes and kitchens, and people most often call us about sealant that never bonded to the surface and smeared, uneven beads picked up at snagging.
In a town like Hedge End, older houses sit alongside newer estates, with new homes still going up on the edge of many towns. Whether a house is brand new or a few years old, sealant and floor joints are often the first snags to show.
All of our work is guaranteed for twelve months, in Hedge End and everywhere else we cover.
- Place
- Hedge End (SO30, SO31)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How we quote for new build mastic
The quote reflects the job in front of us. We take into account:
- Whether the work is at height
- How many rooms, windows or areas are involved
- The amount of work
- When we can work, for business premises
The cost depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before work begins, so you know where you stand.
Asking for a quote
When you contact us, these details help:
- Roughly how big the job is
- Whether it’s a home or a business
- Where the property is
- Whether it has been sealed before
Want a quote for new build mastic? Please ring 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear quote before we start.
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Watch for new gaps as the house dries out
- Clean sealant with mild detergent, not abrasives
- Keep water off fresh sealant until it has cured
- Raise failed sealant with the developer while you’re covered
Watch the joints as the house settles. Hairline gaps can open as timber and plaster dry, and they’re simple to reseal once movement has slowed.
The sooner you deal with untidy or cracking sealant, the less there is to put right. Small faults turn into leaks if left in a busy bathroom.
Common problems we fix in Hedge End
Baths and trays settle under load once the home is lived in. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used and can tear.
Keep an eye out for any of the following:
- Cracked sealant around new window and door frames
- Gaps between new skirting and floors
- Kitchen sealant that has pulled off the wall
- Cracks appearing as a new home settles
If you’ve bought a new home near Hedge End station, the sealant around baths, showers and frames is worth checking in the first year or two.
What to look for in a quote
- How long to leave it before use
- Whether they’re fully insured
- Who turns up on the day
- Whether VAT is included
The process
When we arrive, we start by going over the job with you, so you know exactly what we are doing. We protect the surfaces around the joints before we start. The work normally takes a few hours in a single home. Parking in a town like Hedge End is generally straightforward, but tell us if there’s a driveway or any restrictions, and mention if the work is upstairs, in a flat or high on the outside.
- 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.
- The finished joints are checked and the cure times given.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Clear the area around the work
- On commercial sites, let us know about site rules
How to get a quote
We quote each job on its own, so the first step is telling us about yours. Simply ring 0345 464 0079 or send us an email and describe the job.
Read more
What we can’t put right
We will not take on work that won’t last, so here’s what sealant cannot put right:
- Leaking fittings rather than failed sealant
- Settlement cracks that need a surveyor
- Broken tiles or a split tray
If in doubt, call 0345 464 0079 or send us an email and we will say what we think before booking.
Surfaces we seal
- Plot handovers
- Bathrooms & en suites
- Show homes
- Skirting & floors
- Windows & doors
- Kitchens
Hedge End questions
What guarantee comes with new build mastic in Hedge End?
All our work, in Hedge End and everywhere else, comes with a 12-month guarantee. We’re also fully insured and ARBOMaster approved.
I let a flat near Hedge End station. Can you help?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.
Should I try DIY first?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Should I go to my builder first?
While the snagging or warranty period runs, the builder should be your first contact. If it isn’t sorted, or keeps failing, get in touch with us.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
What should I tell you?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or drop us an email.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
New homes and floors in Hedge End
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.
In and around Hedge End, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Hedge End is about 4 miles east of Southampton, in Hampshire. Our applicators cover new build mastic for householders, landlords and businesses in Hedge End and the surrounding area, as part of our work across Hampshire. Our Hampshire coverage runs to 683 places, and Hedge End is one of them.
All of SO30 and SO31 is within our area for new build mastic. Whether your property is on Lynton Road, Watts Road and Dean Court or a nearby road, we can help. You will find Hedge End on the A334 and B3033, which makes it straightforward to reach with everything needed for new build mastic. Nearby, we also carry out new build mastic in Thornhill (2 miles west), Harefield (2 miles west), West End (2 miles north-west), Chartwell Green (2 miles north-west) and Sholing (3 miles south-west). We also work in nearby towns such as Winchester (10 miles north), Gosport (10 miles south-east), Havant (14 miles east), Eastleigh (4 miles north-west), Fareham (6 miles south-east) and Horndean (13 miles east).
Near you in Hedge End
Around Hedge End, our work takes us to homes and buildings near Wildern School and Wildern School, among other places. The nearest railway station is Hedge End station, roughly 1.2 miles north. Well-known places in the area include Netley Castle (3.6 miles south-west) and Bursledon Brickworks Industrial Museum (2 miles south). The countryside around Hedge End includes Netley Common.
Also near Hedge End
What else we do in Hedge End
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it lifts and traps water and mould underneath. Everything old must be removed first.