West Sussex · England
New-build mastic & snagging in Streat, West Sussex
Problem with your new-build sealant joints in Streat? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Smeared, uneven beads picked up at snagging
- Plot mastic for developers ahead of handover
- Cracked caulk along new skirting
Why act early in Streat
Small cosmetic gaps can wait for the house to settle, but water getting through cannot. If you are unsure which you have, ring 0345 464 0079 or email us with photos and we will tell you. Around Streat, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Some things make a job bigger or smaller: the old material and how easily it comes out, any mould to treat, and whether the work is at height. We take all of that into account in your quote.
Why book with us
- Tidy, careful work
- Every job guaranteed for a year
- A sealant colour to suit the surroundings
- Quality sealants from Arbo and Everbuild
See what affects the cost and our reviews.
New build mastic for homes and businesses in Streat
Building dust is behind a lot of failed new-build sealant. Each joint is cleaned of dust and primed where the product calls for it, so the sealant actually sticks rather than sitting on a layer of grit. We work on bathrooms & en suites, show homes and kitchens, and the jobs we see most are gaps opening as the house dries out and settles and sealant applied over dusty or wet surfaces.
Around Streat, older homes often have timber floors that move through the year, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
A one-year guarantee comes as standard, so you are covered after we have gone.
- Where
- Streat (BN6, BN7)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
New build mastic around Streat
The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Around Streat, as everywhere, new build mastic is only as good as the preparation behind it.
Streat is about 3 miles south-east of Burgess Hill, in West Sussex. Anywhere in BN6, we cover new build mastic for homes and businesses. Our West Sussex coverage runs to 371 places, and Streat is one of them. Brighton is on our list too, about 6 miles from Streat.
Postcode districts we cover here for new build mastic: BN6 and BN7. Neighbouring places we cover for new build mastic include Plumpton (1 mile south-east), Plumpton Green (1 mile north-east), East Chiltington (1 mile east), Ditchling Common (2 miles north) and Chiltington (2 miles east). Larger places within reach include Crawley (14 miles north), Horsham (15 miles north-west), Worthing (15 miles south-west), Haywards Heath (6 miles north), Burgess Hill (3 miles north-west) and East Grinstead (15 miles north).
Near you in Streat
The closest station to Streat is Plumpton station, roughly 1.1 miles north-east of the centre. A little further out are Ditchling Museum of Art + Craft (1.6 miles west) and Lewes Victoria Hospital (4.5 miles south-east). Open spaces near Streat include Ditchling Beacon and Bedelands Farm Nature Reserve.
What happens on the day
We work through the job in order: protect, prepare, seal, tidy. Typically it takes a few hours in a single home. In a small place like Streat, access is generally the main thing to plan. 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.
- Every bit of the old builder’s sealant is cut out down to clean surfaces.
- Joints are vacuumed and cleaned of building dust.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
How to prepare
- Mention any parking rules near the property
- Let us know if you’ve seen damp or leaks
- For business premises, tell us about site rules or sign-in
Ask for a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we’ll explain how we’d tackle it. Whenever you’re ready, ring 0345 464 0079 or send us an email.
Read more
Signs you need new build mastic in Streat
If plaster or screed was still damp when it was sealed, the bond suffers. On a busy site, joints aren’t always given time to dry before the sealant goes on.
Keep an eye out for any of the following:
- Smeared, uneven beads picked up at snagging
- Plot mastic for developers ahead of handover
- Gaps between new skirting and floors
- Beads laid onto grit and dust from the build
If you’ve bought a new home near Plumpton station, the sealant around baths, showers and frames is worth checking in the first year or two.
Before you book anyone
- What the cure time is
- How hidden problems are handled
- Who does the work, and how experienced they are
- Whether they’re fully insured
How we quote for new build mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- The amount of work
- The product the joint needs
- Any mould that needs treating
- Whether old sealant or filler has to be cut out
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Ask us for a quote and we’ll go through it with you.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- Roughly how big the job is
- Access, such as stairs, a lift or height
- Where the property is
- The problem you’ve noticed
We don’t publish a price list. Instead, we give you a clear quote for your job. To arrange one, call 0345 464 0079 or send us an email.
Landlord and commercial work in Streat
If you manage several properties in or around Streat, several properties can be quoted together. Send us the addresses and the work at each.
Whether it’s one flat or a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
DIY versus a professional finish
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Also near Streat
Other services in Streat
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Don’t seal over failed sealant yourself
- Get a leaking seal dealt with right away
- Keep water off fresh sealant until it has cured
- Watch for new gaps as the house dries out
Watch the joints as the house settles. Small gaps can appear as the house dries and can be resealed later.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Catching it early keeps the fix to the sealant and protects the rest of the house.
FAQs for Streat
Is Streat in your area for new build mastic?
Yes. We work across London and the South East, and Streat is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job.
Will you come out to Streat?
Yes, we do. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Will the old sealant be removed?
Always. Sealing over old sealant is the main reason resealing fails early, so we never do it.
Is it messy?
Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.
My new home is still under warranty. Should I contact you?
Start with your builder while their snagging or warranty period runs. If that does not work out, we are happy to quote with our one-year guarantee.
What colour sealant will you use?
The colour is chosen to suit the tiles, worktop or frame. Let us know your preference when you ask for a quote.
Can you quote for more than one area?
Yes. Several rooms, windows or areas can go on one quote.
How do I get a quote for new build mastic in Streat?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or email us and let us know what needs doing and where.