West Sussex · England
Graffham New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes in Graffham, with a 12-month guarantee on every job. Ask us for a quote.
- Kitchen sealant that has pulled off the wall
- Gaps opening as the house dries out and settles
- Second-fix sealing on new plots
Joints and finishes in Graffham homes
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In and around Graffham, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Graffham is about 9 miles north-east of Chichester, in West Sussex. Whether you’re in the middle of Graffham or further out, we cover new build mastic for every kind of property, from flats and houses to offices and hotels. Graffham is one of 371 places in West Sussex where we work. There’s also a page for Portsmouth, about 20 miles away.
Here we cover the GU28 postcode area for new build mastic. Whether your property is on Guillods Cottages and St Giles Place or a nearby road, our applicators can take on the job. Neighbouring places we cover for new build mastic include East Lavington (1 mile south-east), Duncton (2 miles east), Selham (2 miles north), South Ambersham (2 miles north) and Rotherbridge (3 miles north-east). Within a short drive, we also cover Worthing (15 miles south-east), Bognor Regis (11 miles south), Chichester (9 miles south-west), Selsey (15 miles south), Littlehampton (11 miles south-east) and Emsworth (13 miles south-west).
Local landmarks in Graffham
In Graffham, that means homes and buildings near The Woodman pub, among other places. A little further out are Coultershaw Heritage Site (3.1 miles north-east) and Midhurst Community Hospital (3.9 miles north-west). Not far away are Levin Down and Graffham Common.
New build mastic in Graffham, done properly
A new house keeps drying out and settling for its first couple of years. Timber dries and shrinks, and baths and trays settle, and sealant applied in a hurry at handover can split. Typical jobs include plot mastic for developers ahead of handover and cracks appearing as a new home settles, on skirting & floors, windows & doors and bathrooms & en suites.
Somewhere as small as Graffham, new homes tend to be conversions, self-builds or a few houses rather than an estate. Each still needs its sealant and floor joints finished properly.
A one-year guarantee comes as standard.
- Location
- Graffham (GU28)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- Leaks from pipes, valves or wastes, which need a plumber
- Disputes or warranty claims with your builder
- Cracked trays, tiles or worktops
If in doubt, phone 0345 464 0079 or email us and we will say what we think before you book.
Joints and surfaces we work on
- Kitchens
- Show homes
- Plot handovers
- Bathrooms & en suites
- Skirting & floors
- Windows & doors
What we are called out for in Graffham
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 first.
If you can see any of these, it’s time to have the joints looked at:
- Gaps opening as the house dries out and settles
- Messy sealant that spoils new finishes
- Shower seals failing in the first year or two
- Gaps between new skirting and floors
Whether the job is in Graffham itself or nearby, the right material for each joint matters as much as a neat finish.
What your quote should include
- The length of the guarantee
- How much experience the applicator has
- What preparation is included
- Which colour the sealant will be
Should I try it myself first?
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Why deal with it now?
A tube of sealant from the DIY shop will not fix the cause: grit, unprimed surfaces and old layers underneath. Cutting out, cleaning and priming are what make the difference. In a small place like Graffham, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, along with when we can work on site. Ask us for a quote and we will go through it with you.
What you get with us
- Approved under the ARBOMaster scheme
- Old sealant always removed completely
- Sealant colour chosen to suit
- We agree the colour with you first
Read what affects the cost or our reviews.
Landlord and commercial work in Graffham
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. We can quote for more than one property at once.
How the visit works
We keep the work tidy and contained to the joints we’re treating, so you can get on with your day. The job normally takes anything from a few hours to several days, depending on the number of plots, and we explain the cure time before we leave. Somewhere as small as Graffham, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely, with no layer left behind.
- We clean out the dust and grit left from the build.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
Preparing for the visit
- Mention any leaks or damp you’ve noticed
- Let us know about parking restrictions
- Let us know about earlier repairs to the joints
Getting a quote
For new build mastic in Graffham, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
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Towns and villages near Graffham
Also in Graffham
Graffham questions
Is Graffham in your area for new build mastic?
Yes, Graffham is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear quote.
Is there a guarantee on new build mastic in Graffham?
All our work, in Graffham and everywhere else, comes with a 12-month guarantee. We are fully insured, and an ARBOMaster approved applicator.
Is it normal for sealant to crack in a new home?
Cracking in the first couple of years is common, because the house is drying and settling. Rushed application on dusty surfaces makes it worse.
Do you remove the old sealant?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Do you hold any approvals?
Yes. We are approved under the ARBOMaster scheme.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages.
Can you work from my snagging list?
Yes. Send the list and a few pictures of the sealant items and we’ll give you a quote. We’ll tell you if anything on it isn’t a sealant job.
Does someone need to be in?
Access is agreed with you when the job is booked. Indoors, that generally means someone at home.
What the job involves on each surface
Skirting and floors
Wet-area floor joints need a flexible seal. We seal them with a sealant suited to wet areas.
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 with baths filled first.