West Sussex · England
New Build Mastic in Hardham
Our applicators work in Hardham on plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and a 12-month guarantee.
- Skirting joints opening in the first winter
- Internal frame sealant that has split
- Smeared, uneven beads picked up at snagging
How to look after the new joints
To keep the joints looking good and working properly:
- Do not wait for the house to settle if water is getting through
- Ventilate bathrooms well, especially in the first year
- Check bath and shower seals every few months as the house settles
- Raise failed sealant with the developer while you are covered
Avoid standing on the rim of the bath or the edge of the tray while the sealant cures. Report any movement in a bath or tray.
Lifting sealant traps moisture and mould behind it. Resealing before mould gets in keeps the job straightforward.
About our new build mastic in Hardham
We never seal over a failed new-build bead. New silicone will not bond to old silicone, so it all comes out before we clean, dry and reseal. If you have worktop and upstand sealant coming away and joints pulling apart as timber shrinks, we can put it right.
Older homes in small places like Hardham often have timber floors that move with the seasons, which is why skirting and threshold joints need a flexible sealant, not filler.
Our work is backed for twelve months.
- Place
- Hardham (RH20)
- Region
- West Sussex
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
More services for Hardham
When it is not the sealant
It helps to know what we can’t do too:
- Cracking that points to a structural problem
- Movement caused by a poorly fitted tray or bath
- Damaged fittings that need replacing
If you are not sure, just call 0345 464 0079 or send us an email and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Show homes
- Bathrooms & en suites
- Plot handovers
- Windows & doors
- Kitchens
- Skirting & floors
Why it’s worth doing now in Hardham
Resealing everything on a snagging list in one visit is normally simpler than chasing joints one at a time. It’s one visit, one quote and one set of cure times to plan around. Where a wall is exposed, as many are in small places like Hardham, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
What you pay reflects the work, not a rough estimate. That’s why we ask a few questions first.
What you get with us
- White, clear, grey or another colour, product permitting
- Colour picked to suit the job
- 4.9 on Google from 180+ five-star reviews
- A 12-month guarantee on all work
What we are called out for in Hardham
When the heating goes on in the first winter, the house dries fast. Gaps open along skirting, frames and worktops and cracks appear in the sealant.
The most common problems we see are:
- Gaps opening as the house dries out and settles
- Skirting joints opening in the first winter
- Second-fix sealing on new plots
- Leaking shower tray seals in a new home
In and around Hardham, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
What your quote should include
- How the surfaces are prepared before sealing
- What the quote includes, VAT included or not
- Whether they’re fully insured
- How the colour is chosen
Different surfaces, different methods
Windows and doors
Internal joints between frames and plaster often crack as a new house dries. We remove cracked sealant and apply a flexible one in a matching colour.
Show homes
Bathrooms, kitchens and frames in show homes are sealed or resealed to a neat finish to a tidy standard. Tell us when the home is open so we can plan around it.
New homes and floors in Hardham
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Pulborough station, it’s worth checking the sealant early, while snags are still fresh.
Hardham is about 10 miles north of Littlehampton, in West Sussex. Jobs in Hardham get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our West Sussex coverage runs to 371 places, and Hardham is one of them. For nearby work, see our Crawley page, about 18 miles away.
Our applicators cover all of the RH20 postcode area for new build mastic. Nearby, we also carry out new build mastic in Coldwaltham (1 mile south-west), Pulborough (1 mile north-east), Watersfield (2 miles south-west), Fittleworth (2 miles north-west) and Lower Horncroft (2 miles west). Larger places within reach include Horsham (12 miles north-east), Worthing (10 miles south-east), Bognor Regis (13 miles south-west), Chichester (13 miles south-west), Littlehampton (10 miles south) and Shoreham-by-Sea (14 miles south-east).
Local landmarks in Hardham
We work in homes and buildings around The White Hart Public House, among other places. The nearest railway station is Pulborough station, about 0.7 miles north-east of the centre. Other landmarks nearby include Amberley Museum (3.6 miles south) and Coates Castle (2.8 miles west). For a walk, there’s Bignor Hill and Amberley Wildbrooks RSPB Reserve.
What we do, step by step
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for most snagging lists, longer for a run of plots. Somewhere like Hardham needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each joint is checked for movement before we start.
- We remove the failed sealant and clean the joints.
- 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
- Move anything stored near the joints
- Keep children and pets away from the work area
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
For a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Related advice
How we quote for new build mastic
Call for a quick quote. What matters most is:
- Whether old sealant or filler has to be cut out
- Working hours on commercial sites
- The number and length of the joints
- Whether there’s mould to deal with
Leaving a failed joint usually makes the job bigger, not smaller, because water and mould keep working on it. If you’re unsure, call 0345 464 0079 or send us an email for an honest opinion and a quote.
What we need to know
When you contact us, it’s useful to know:
- Whether it has been sealed before
- The rough size of the job
- How we’d reach the joints
- The problem you’ve noticed
If you are in Hardham and need new build mastic, phone 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
Your questions about new build mastic in Hardham
Do you cover Hardham for new build mastic?
Yes. Our work covers London and the South East, and Hardham is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
Do you work for landlords with property near Pulborough station?
Yes, rental work is part of what we do. Just call 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
Do you use white or clear sealant?
It depends on the joint: white or clear in most bathrooms, and a colour to suit worktops, frames and floors elsewhere. We agree the colour before work begins.
Do you do commercial work?
Yes. We work in offices, washrooms, hotels and other commercial premises. We can talk about working times when we quote.
Is there a guarantee?
Yes. Every job comes with a 12-month guarantee.
Is it worth resealing while the house is still settling?
That depends on the joint. Failed seals in wet areas need doing now, but cosmetic gaps can wait for movement to slow.
How long does new build mastic take?
As a guide, most jobs take a few hours in a single home. Bigger jobs take longer, and we will say how long yours will take.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.