Hampshire · England
New-build mastic & snagging in Hundred Acres, Hampshire
Plot mastic for developers and snagging failed sealant in new homes for homeowners, landlords and businesses in Hundred Acres. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracked caulk along new skirting
- Sealant that never bonded to the surface
- Kitchen sealant that has pulled off the wall
About our new build mastic in Hundred Acres
We work in new homes and on new-build sites across Hundred Acres. One shower or a whole phase of plots, the method doesn’t change: cut out, clean, prime where needed and reseal neatly. If you have gaps opening as the house dries out and settles and second-fix sealing on new plots, we can help, on bathrooms & en suites, plot handovers and kitchens alike.
Somewhere as small as Hundred Acres, new homes tend to be conversions, self-builds or a few houses rather than an estate. Every one needs its sealant and floor joints done properly, whatever the size of the site.
Whatever the size of the job, it’s backed by our 12-month guarantee in Hundred Acres and across Hampshire.
- Where
- Hundred Acres (PO17)
- Wider area
- Hampshire
- Cover
- 12 months on all our work
- Quote
- A clear price before work begins
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Looking after it afterwards
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Avoid running a DIY bead over the old one
- Wipe joints with warm soapy water
- Raise failed sealant with the developer while you’re covered
- Watch for new gaps as the house dries out
Watch the joints as the house settles. Hairline gaps can open as timber and plaster dry.
The sooner you deal with untidy or cracking sealant, the less there is to put right. Small faults turn into leaks if left.
How the visit works
All our tools and materials come with us in the van. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a few hours for most snagging lists, longer for a run of plots. Somewhere as small as Hundred Acres, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
Before we arrive
- Mention any tricky access
- Clear the area around the work
- Keep pets and children clear of the area while we work
Getting a quote
Want a quote for new build mastic? Please ring 0345 464 0079 or email us with a few details. We’ll explain what we’d do and give you a clear price before any work starts.
Read more
Surface by surface
Skirting and floors
As timber and screed dry, skirting and floors shift. We use a flexible product rather than caulk.
Bathrooms and en suites
Shower trays in new homes often move slightly in the first year. We reseal once the old bead is fully out.
Joints and finishes in Hundred Acres homes
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.
For new homes near Fareham station, it’s worth checking the sealant early, while snags are still fresh.
Hundred Acres is about 4 miles north-east of Fareham, in Hampshire. From the centre of Hundred Acres to the outskirts, new build mastic is available for homes and businesses alike. 683 places in Hampshire are on our list, large and small. Our Portsmouth page covers work nearby (7 miles or so).
Postcode districts we cover here for new build mastic: PO17. You’ll find streets such as Hundred Acres Road and Southwick Road, and we cover them all. Close by, we work in North Boarhunt (1 mile south-east), Wickham Common (1 mile south-west), Crockerhill (2 miles south-west), Welborne (2 miles south-west) and Boarhunt (2 miles south). Further out, we also cover Winchester (13 miles north-west), Gosport (7 miles south), Havant (8 miles east), Eastleigh (9 miles north-west), Fareham (4 miles south-west) and Horndean (6 miles east).
Around Hundred Acres
The closest station to Hundred Acres is Fareham station, roughly 3.5 miles south-west of the centre. Other landmarks nearby include Fareham Shopping Centre (3.3 miles south) and Portchester Castle (4.7 miles south-east). The countryside around Hundred Acres includes St Clair's Meadow and Portsdown Hill.
Hundred Acres questions
Will you come out to Hundred Acres?
Yes, we do. We work across London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Fareham station?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll give you a clear quote.
Do you take out the old sealant first?
Yes. We cut out all the old sealant and clean the joint before applying anything new.
How long should I leave it?
Different products cure at different speeds, so follow the cure time we give you.
What do you put in the joint?
Products from Arbo and Everbuild, among others, picked for each joint. We’ll tell you what we are using and why.
Should I try DIY first?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
How much does new build mastic cost in Hundred Acres?
The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote.
Are you fully insured?
Yes. We’re fully insured.
Also near Hundred Acres
Other services in Hundred Acres
Why act early in Hundred Acres
The builder is usually the first port of call while the snagging or warranty period runs. If it keeps failing or isn’t dealt with, we can reseal it properly. Around Hundred Acres, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Hundred Acres
- Domestic, commercial and hotel work
- ARBOMaster approved applicator
- Neat joints and a tidy finish
- We agree the colour with you first
Take a look at our cost guide and our reviews.
What we can’t put right
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Cracking that points to a structural problem
- Your warranty claim itself, which is between you and the builder
- A tray or bath that isn’t properly supported, until it’s fixed
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before booking.
Surfaces we seal
- Bathrooms & en suites
- Kitchens
- Plot handovers
- Windows & doors
- Skirting & floors
- Show homes
DIY versus a professional finish
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.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
When to call us in Hundred Acres
Sealant is often one of the last jobs before handover. Dusty, unprimed joints are common, and the sealant sits on grit instead of the surface.
The most common problems we see are:
- Joints pulling apart as timber shrinks
- Frame joints opening as the plaster dries
- Kitchen sealant that has pulled off the wall
- Sealant work across a run of new homes
In and around Hundred Acres, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Questions to ask before booking
- Is VAT in the price?
- Whether all the old sealant comes out first
- What product goes in the joint
- Whether you can choose the colour