West Sussex · England
Birdham New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for Birdham, backed by a 12-month guarantee. Call for a quick quote.
- Joints pulling apart as timber shrinks
- Beads laid onto grit and dust from the build
- Smeared, uneven beads picked up at snagging
What happens if it’s left?
If you are 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. In a small place like Birdham, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Instead of a standard rate, 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.
Why Birdham customers choose us
- We never seal over old sealant
- Domestic, commercial and hotel work
- Colour picked to suit the job
- Every job guaranteed for a year
Take a look at how sealant jobs are priced or what customers say.
New build mastic in Birdham
Snagging sealant properly means taking the failed bead out completely. New silicone won’t bond to old silicone, so it all comes out before we clean, dry and reseal. Common call-outs are for cracks appearing as a new home settles and gaps between new skirting and floors, across windows & doors, show homes and bathrooms & en suites.
For a small place like Birdham, the journey and access are planned in advance, and the work itself is the same as on any site.
Whatever the size of the job, you get the same 12-month guarantee in Birdham and across West Sussex.
- Where
- Birdham (PO20)
- Region
- West Sussex
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
So the new joints stay in good condition:
- Follow the cure time we give you
- Do not wait for the house to settle if water is getting through
- Look at the sealant regularly in the first couple of years
- Avoid running a DIY bead over the old one
Leave the sealant for the cure time we give you before showering or bathing. Silicone is generally left for about a day before water reaches them.
A failed seal in a new home lets water into joists, plasterboard and ceilings. Early resealing keeps the job small and the new finishes intact.
How we quote for new build mastic
You’ll get a clear quote before we start. It’s based on:
- When we can work, for business premises
- Whether old sealant or filler has to be cut out
- How easy the joints are to reach
- The number of rooms or windows
The cost depends on how much there is to do, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts, so you know where you stand.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- Any access issues, like height or stairs
- What’s wrong with the joints now
- The rough size of the job
- Whether it has been sealed before
Getting a quote is simple: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we’ll come back to you with a quote.
Work for landlords, hotels and businesses
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we’ll give you a quote.
How it works
Once we are on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours in a single home. Somewhere as small as Birdham, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each joint is checked for movement before any work starts.
- We remove the failed sealant and clean the joints.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Mention any leaks or damp you’ve noticed
- Try not to wet indoor joints just before the visit
Get a quote
We don’t publish a price list. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or drop us an email.
Read more
Towns and villages near Birdham
Other services in Birdham
How the job changes by surface
Show homes
Tired or marked sealant in a show home can be renewed. We cut it out and reseal neatly.
Plot handovers
Taking time over preparation reduces return visits. Dust from the build is removed first and prime where the product needs it.
Do you need new build mastic in Birdham?
New homes are full of moisture from plaster, screed and concrete, and it dries out over the first couple of years. Drying timber shrinks and pulls joints apart.
Most people get in touch when they notice one of these:
- Sealant work across a run of new homes
- Gaps opening as the house dries out and settles
- Sealant that never bonded to the surface
- Gaps between new skirting and floors
If you’ve bought a new home near Fishbourne station, the sealant around baths, showers and frames is worth checking in the first year or two.
Questions to ask before you book
- Which sealant they’ll use, and why
- Whether VAT is included
- What insurance they hold
- What preparation is included
Common questions in Birdham
Will you come out to Birdham?
Yes, Birdham is covered. 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.
Can you help a landlord with a rental near Fishbourne station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Are you ARBOMaster approved?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
How long does the job take?
Most jobs take anything from a few hours to several days, depending on the number of plots, including preparation and clearing up. Your quote will say how long we expect yours to take.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us and we are fully insured.
What information do you need?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply call 0345 464 0079 or drop us an email.
How do I get a quote for new build mastic in Birdham?
Size, access and the old material all affect the cost. Call for a quick quote.
Is the work guaranteed?
Yes, for a year. If anything is not right with the work within the year, let us know and we will sort it.
What new build mastic looks like in Birdham
Birdham is within about 2 miles of the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Around Birdham, as everywhere, new build mastic is only as good as the preparation behind it.
Birdham is about 4 miles south-west of Chichester, in West Sussex. We carry out new build mastic for householders, landlords and businesses in Birdham, as part of our work across West Sussex. Across West Sussex, we cover 371 places, Birdham among them. We also work in Portsmouth, around 11 miles away.
Work in PO20 is quoted and booked the same way as anywhere else. Whether your property is on Old Common Close, Main Road and Walwyn Close or a nearby road, our applicators can take on the job. We also cover Somerley (1 mile south-west), Almodington (1 mile south), Shipton Green (1 mile west), Highleigh (2 miles south-east) and Earnley (2 miles south). Further out, we also cover Bognor Regis (6 miles east), Chichester (4 miles north-east), Selsey (5 miles south-east), Littlehampton (13 miles east), Emsworth (6 miles north-west) and Rustington (14 miles east).
Near you in Birdham
Typical jobs here are in homes near The Birdham Public House. For rail, the closest station is Fishbourne station, about 3.3 miles north. Nearby you’ll also find Chichester Castle (4.1 miles north-east) and St Richard's Hospital (4.4 miles north-east). Green spaces nearby include Pilsey Island.