Hampshire · England
New-build mastic & snagging in Clanfield, Hampshire
Plot mastic for developers and snagging failed sealant in new homes for householders, landlords and businesses in Clanfield. Fully insured, ARBOMaster approved and guaranteed for a year.
- Worktop and upstand sealant coming away
- Shower seals failing in the first year or two
- Untidy sealant flagged on a snagging list
New build mastic in Clanfield, done properly
A new build should have a neat, sound bead at every joint. Smeared, patchy or cracked sealant is worth sorting early, before water reaches anything behind it. We work on windows & doors, plot handovers and bathrooms & en suites, and people most often call us about frame joints opening as the plaster dries and skirting joints opening in the first winter.
Somewhere as small as Clanfield, 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.
Each job carries a 12-month guarantee, large or small.
- Location
- Clanfield (PO8)
- Wider area
- Hampshire
- Guarantee
- 12 months on all our work
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Cracked trays, tiles or worktops
- Your warranty claim itself, which is between you and the builder
- Leaks from pipes, valves or wastes, which need a plumber
If you are not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer before booking.
Joints and surfaces we work on
- Skirting & floors
- Bathrooms & en suites
- Kitchens
- Show homes
- Windows & doors
- Plot handovers
What affects the cost of new build mastic
Jobs vary more than people expect. What affects the quote:
- The number of rooms or windows
- Any working-time requirements on site
- The size of the job
- The old material and how stubborn it is
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
What we need to know
To help us quote quickly, let us know:
- Whether it has been sealed before
- Where the property is
- Roughly how big the job is
- Photos by email, if that is easy
We do not publish a price list. Instead, we give you a clear quote for your job. To get started, ring 0345 464 0079 or email us.
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Record problems with dated photos
- Check bath and shower seals every few months as the house settles
- Open a window or run the fan after bathing
- Resist patching a failed seal with a tube from the DIY shop
Wipe the sealant with warm soapy water. Keep scourers and harsh chemicals off it.
If a shower tray or bath seal splits in the first year, look for movement. Have it resealed, and the tray or bath checked, before it gets worse.
Also near Clanfield
What else we do in Clanfield
Do you need new build mastic in Clanfield?
If plaster or screed was still damp when it was sealed, the bond suffers. Site programmes don’t always leave time for joints to dry before the sealant goes on.
If you can see any of these, it’s time to have the joints looked at:
- Joints pulling apart as timber shrinks
- Frame joints opening as the plaster dries
- Plot mastic for developers ahead of handover
- Gaps behind new kitchen upstands
For new homes near Rowlands Castle station, it’s worth checking the sealant early, while snags are still fresh.
Before you book anyone
- What happens if the job turns out different
- Who turns up on the day
- Is VAT in the price?
- When the joint can take water or movement
What happens if it’s left?
For developers, getting the sealant right first time saves return visits. Snagging visits for failed sealant cost time on every plot, and they’re avoidable with good preparation. Where a wall is exposed, as many are in small places like Clanfield, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
The cost reflects the work involved, not guesswork. That is why we ask about the job first.
Why Clanfield customers choose us
- Any old sealant cut out fully, not covered over
- We are fully insured
- Rated 4.9 stars on Google
- Domestic, commercial and hotel work
Read our cost guide and our reviews.
How it works
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, carry out the job and tidy away. Most jobs take a few hours in a single home. In a small place like Clanfield, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We look at why each joint failed, including any movement.
- 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.
- We check every joint and leave you with the cure times.
Before we arrive
- Tell us about access, such as stairs, a lift or high-level joints
- Mention if the joints have been sealed before
- Let us know if you’ve seen damp or leaks
Getting a quote
Need a quote? Please call 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and give you a clear price before any work starts.
Read more
Joints and finishes in Clanfield homes
Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around Clanfield, as everywhere, new build mastic is only as good as the preparation behind it.
Clanfield is about 3 miles north of Horndean, in Hampshire. For new build mastic in and around Clanfield, please ring 0345 464 0079 or drop us an email for a quick quote. We are based in Crawley and cover Hampshire, Clanfield included. Clanfield is one of 683 places in Hampshire we cover for new build mastic. We also work in Portsmouth, about 10 miles from Clanfield.
Work in PO8 works the same way as everywhere else we cover. Streets in the area include South Lane, Twyford Rise and Homefield Way, all of which we cover. If you’re just outside Clanfield, we cover Catherington (1 mile south), Lovedean (2 miles south), Horndean (3 miles south), Wecock Farm (3 miles south) and Anmore (3 miles south-west). Larger places within reach include Gosport (11 miles south-west), Havant (6 miles south), Eastleigh (15 miles west), Fareham (10 miles south-west), Alton (14 miles north) and Hedge End (13 miles west).
Near you in Clanfield
Typical jobs here are in homes near Rising Sun Inn and Horndean Technology College and the streets around them. The nearest railway station is Rowlands Castle station, roughly 4.2 miles south-east. Well-known places in the area include Petersfield Community Hospital (5.1 miles north-east) and Clanfield Earthwork (1.2 miles east). For a walk, there’s Windmill Hill.
Clanfield questions
Will you come out to Clanfield?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Do you work for landlords with property near Rowlands Castle station?
Yes, we work for landlords and agents. Just phone 0345 464 0079 or send us an email and tell us about the property, and we’ll send you a clear quote.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us.
Is it messy?
No. We work neatly, protect the area around the joints and tidy up afterwards.
What colour sealant will you use?
We use white, clear or a colour to suit the finishes. Let us know your preference when you ask for a quote.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all.
Should I try DIY first?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We’ll give you the cure time for the product we used before we leave.
How the job changes by surface
Skirting and floors
Gaps under skirting are one of the most common new-build snags. A flexible sealant closes it without cracking like caulk.
Plot handovers
Developers can send the plot schedule and specification. Sealant work across the plot is covered to the agreed spec.