Hampshire · England
New-build mastic & snagging in Havant, Hampshire
Plot mastic for developers and snagging failed sealant in new homes for Havant, backed by a 12-month guarantee. Ask us for a quote.
- Sealant work across a run of new homes
- Cracked sealant around new window and door frames
- New-build shower sealant that has already split
Signs you need new build mastic in Havant
New homes are full of moisture from plaster, screed and concrete, and it dries out over the first couple of years. As it does, timber shrinks and joints open.
Keep an eye out for these signs:
- New-build shower sealant that has already split
- Cracks appearing as a new home settles
- Sealant applied over dusty or wet surfaces
- Frame joints opening as the plaster dries
For new homes near Havant station, it’s worth checking the sealant early, while snags are still fresh.
What your quote should include
- Which sealant they’ll use, and why
- What happens if the job turns out different
- Whether VAT is included
- When the joint can take water or movement
About our new build mastic in Havant
Across Havant, we work for both new-home owners and the builders handing those homes over. One shower or a whole phase of plots, the method does not change: remove, clean, prime where needed, then a neat new bead. Typical jobs include new-build shower sealant that has already split and smeared, uneven beads picked up at snagging, across windows & doors, skirting & floors and plot handovers.
Small business units and shops in a town like Havant have floors that take heavy wear. Threshold and floor joints are best resealed before their edges start breaking away.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Havant (PO9, PO11, PO7)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
DIY sealant or a professional job?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
A DIY attempt does not rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
How the job changes by surface
Bathrooms and en suites
Shower trays in new homes often move slightly in the first year. The joint is stripped back before the new bead goes in and baths are filled before sealing.
Plot handovers
Good preparation at handover saves snagging later. We clean out building dust before sealing and prime where the product needs it.
Your questions about new build mastic in Havant
Is new build mastic in Havant guaranteed?
All our work, in Havant and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Do you cover Havant for new build mastic?
Yes, Havant is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing, and we will send you a clear quote.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
Will it make a mess?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
Can you do several jobs on one visit?
Yes. More than one area can go on one quote.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We explain the product when we quote.
Do you work for developers?
Yes. We carry out plot mastic and second-fix sealing for builders and developers. Send us the plot schedule and we will quote.
Can you match the sealant colour to my new kitchen or bathroom?
White and clear are the most common, but sealant comes in other colours too. We choose one to suit the room.
Leave it or put it right?
If you’re still in the builder’s snagging or warranty period, ask them to put it right first. If it’s slow, or the same joint keeps failing, a proper reseal from a specialist is the next step. Around Havant, failed sealant lets water into hidden places, like the floor under a bath, the back of a panel or the inside of a wall. Left alone, that means rot, damp and a bigger repair.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why us?
- Any old sealant cut out fully, not covered over
- Trusted Arbo and Everbuild sealants
- Experience in homes, commercial sites and hotels
- Anti-fungal silicone where joints get wet
Honest limits
Sealant is not the answer to every problem, and we will tell you before work begins. Sealant will not put right:
- Settlement cracks that need a surveyor
- Disputes or warranty claims with your builder
- Broken tiles or a split tray
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Plot handovers
- Windows & doors
- Kitchens
- Show homes
- Skirting & floors
- Bathrooms & en suites
Towns and villages near Havant
What else we do in Havant
Joints and finishes in Havant homes
Havant is within about 2 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. 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.
Around Havant, as everywhere, new build mastic is only as good as the preparation behind it.
Havant is about 18 miles east of Southampton, in Hampshire. For new build mastic in and around Havant, please ring 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Hampshire, Havant included. Our area takes in 683 places across Hampshire.
Every address in PO9, PO11 and PO7 is within our area for new build mastic, from the main roads to the quietest streets. Local streets include Colemore Square, Market Parade and Juniper Square, and we cover them all. Havant is on the A27 and A3(M), which makes it straightforward to reach with everything needed for new build mastic. Close by, we work in Leigh Park (1 mile north), Denvilles (1 mile south-east), Durrants (2 miles north-east), Langstone (2 miles south) and Warblington (2 miles south-east). Further out, we also cover Gosport (8 miles south-west), Fareham (9 miles west), Horndean (3 miles north), Hedge End (14 miles west), Petersfield (10 miles north) and Locks Heath (12 miles west). Havant is one of the larger places we cover in Hampshire.
Local landmarks in Havant
We work in homes and buildings around The Perseverance pub, St Albans Church and Havant College and the streets around them. Havant’s nearest station is Havant station, about 0.6 miles south of the centre. Well-known places in the area include Havant War Memorial Hospital (0.6 miles south) and Havant Museum (0.9 miles south-east). For a walk, there’s Southmoor Nature Reserve.
What happens on the day
We keep the work tidy and contained to the joints we are treating, so you can get on with your day. The job normally takes a few hours for most snagging lists, longer for a run of plots, and we tell you how long to leave it before we go. For a job in Havant, we need access to where the work is and somewhere nearby to park. For outside work, let us know about side access, gates and any upper-floor joints.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out down to clean surfaces.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
Before we arrive
- Mention any parking rules near the property
- For indoor joints, keep the area dry beforehand if you can
- Clear the area around the work
Get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. When it suits you, phone 0345 464 0079 or send us an email.
Advice
How we quote for new build mastic
Call for a quick quote. What matters most is:
- Working hours on commercial sites
- Mould in or behind the old joints
- How much there is to do
- How much old sealant there is and how hard it is to remove
What you pay reflects the work, not guesswork. That is why we ask a few questions first and give you a clear quote before any work starts.
Helping us quote
You do not need to know the technical terms. It helps if you can tell us:
- The address or postcode of the job
- Any previous sealing or DIY work
- How we’d reach the joints
- The problem you’ve noticed
There’s no standard price list. Instead, we give you a clear price for your job. To get started, call 0345 464 0079 or email us.