Hampshire · England
New-build mastic & snagging in Waterlooville, Hampshire
We cover Waterlooville for plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly.
- Untidy sealant flagged on a snagging list
- New-build shower sealant that has already split
- Sealant that never bonded to the surface
New build mastic for homes and businesses in Waterlooville
Developers send us the plot schedule and we work through it. We seal bathrooms, kitchens, windows, doors and skirting so plots are ready to hand over with a sealant suited to each area. Common call-outs are for frame joints opening as the plaster dries and beads laid onto grit and dust from the build, across kitchens, bathrooms & en suites and show homes.
Homes around Waterlooville move a little with the seasons, and skirting and floor joints show it first. Those joints need a flexible sealant, as rigid filler soon cracks out.
Each job carries a 12-month guarantee, whatever its size.
- Location
- Waterlooville (PO7, PO8)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026

What we are called out for in Waterlooville
Sealant applied onto damp surfaces doesn’t bond well. On a busy site, joints are not always given time to dry before the sealant goes on.
The problems people normally mention when they call are:
- Cracked caulk along new skirting
- Leaking shower tray seals in a new home
- Messy sealant that spoils new finishes
- Gaps opening as the house dries out and settles
If you’ve bought a new home near Bedhampton station, the sealant around baths, showers and frames is worth checking in the first year or two.
Questions to ask before booking
- What happens if the job turns out different
- Whether VAT is included
- What guarantee comes with the work
- How the surfaces are prepared before sealing
What we can’t put right
We’d rather tell you now than do work that will not last, so these are the limits:
- Settlement cracks that need a surveyor
- Cracked trays, tiles or worktops
- Leaking fittings rather than failed sealant
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.
What we seal
- Show homes
- Plot handovers
- Windows & doors
- Skirting & floors
- Kitchens
- Bathrooms & en suites
What happens if it’s left?
Water getting past a failed seal in a new build reaches walls and floors that are still settling. Dealing with it early keeps the damage away from ceilings, floors and finishes. Gaps in sealant and mould in the bead never get better on their own, and in a busy home in Waterlooville they get worse with every use. Now is the easy time to put it right.
The cost reflects the work involved, not guesswork. That’s why we ask about the job first and agree the price before starting.
Why Waterlooville clients choose us
- White, clear, grey or coloured to suit, where the product allows
- Every job guaranteed for a year
- Old sealant always removed completely
- Rated 4.9 stars on Google
Read how sealant jobs are priced or our reviews.
Should I try it myself first?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
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.
Common questions in Waterlooville
I let a flat near Bedhampton station. Can you help?
Yes. We work for landlords and agents as well as homeowners, and several properties can be quoted together. You can call 0345 464 0079 or email us with the details for a clear quote.
Do you cover Waterlooville for new build mastic?
Yes. Our work covers London and the South East, and Waterlooville is part of that. You can phone 0345 464 0079 or drop us an email and let us know what needs doing.
Should I wait before resealing?
Where water is getting through, don’t wait. Small gaps that are just cosmetic can be resealed once movement has slowed.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in.
What sealant do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme.
Do you work for developers?
Yes. Plot mastic and second-fix sealing for developers is part of our work. Send the schedule and any specification and we will give you a quote.
Places near Waterlooville
What else we do in Waterlooville
New homes and floors in Waterlooville
Waterlooville is within about 3 miles of the coast. Plot mastic on new homes near the coast takes more weather than it would inland, so it’s worth checking at snagging. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Waterlooville, as everywhere, new build mastic is only as good as the preparation behind it.
Waterlooville is about 6 miles north of Portsmouth, in Hampshire. Whether you’re in the middle of Waterlooville or further out, new build mastic is available for homes and businesses alike, from flats and houses to offices and hotels. 683 places in Hampshire are on our list. You can also see our page for Portsmouth, about 6 miles away.
We cover every part of PO7 and PO8 for new build mastic and the streets around it. If you need new build mastic at a property on London Road, Chillingham Square and Aysgarth Road or anywhere close by, our applicators can take on the job. Nearby, we also carry out new build mastic in Hart Plain (1 mile north), Purbrook (1 mile south), Cowplain (1 mile north), Soake (1 mile north-west) and Purbrook Heath (1 mile south-west). We also work in nearby towns such as Gosport (8 miles south-west), Eastleigh (15 miles north-west), Fareham (7 miles west), Hedge End (12 miles west), Petersfield (9 miles north-east) and Locks Heath (10 miles west).
Landmarks near Waterlooville
Locally, jobs take us to homes and businesses close to Cowplain Community School and The Denmead Queen pub and the streets around them. The nearest railway station is Bedhampton station, roughly 2.6 miles south-east. Well-known places in the area include Queen Alexandra Hospital (2.7 miles south-west) and Havant Museum (3.3 miles south-east). Green spaces nearby include Portsdown Hill and Southmoor Nature Reserve.
How it works
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, we protect the area and start. It normally takes a few hours in a single home. In Waterlooville, parking is rarely complicated, though it helps to know about driveways or restrictions, and let us know if the work is upstairs, in a flat or up high outside.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- We cut out every bit of the failed or messy sealant.
- Surfaces are cleaned of building dust and primed where needed.
- New sealant suited to each joint is applied and tooled neatly.
- We check every joint and tell you how long each needs to cure.
How to prepare
- Let us know if you’ve seen damp or leaks
- Try not to wet indoor joints just before the visit
- For business premises, tell us about site rules or sign-in
Getting a quote
Need a quote? Please call 0345 464 0079 or send us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Surface by surface
Bathrooms and en suites
En suite seals are easy to miss on a snagging list until they leak. Resealing properly keeps water where it belongs.
Show homes
In a show home, the sealant is on display. Every bead is neat and coloured to suit the room.
Keeping the joints in good condition
How long the joints last depends on use and care. Here’s what we suggest:
- Wipe joints with warm soapy water
- Ventilate bathrooms well, especially in the first year
- Avoid running a DIY bead over the old one
- Put sealant faults on your snagging list early
Follow the cure time we give you before the area gets wet. Most silicones need around a day before water reaches them.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Early resealing keeps the job small and protects the rest of the house.
