Greater London · England
New Build Mastic in Newington Butts
We cover Newington Butts for plot mastic for developers and snagging failed sealant in new homes. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Gaps behind new kitchen upstands
- Frame joints opening as the plaster dries
- Cracked caulk along new skirting
What the job involves on each surface
Plot handovers
Plot mastic is carried out to the developer’s schedule. Joints are prepared properly before sealing.
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 that suits the frame.
New build mastic in Newington Butts, 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. Common call-outs are for gaps behind new kitchen upstands and smeared, uneven beads picked up at snagging, across plot handovers, windows & doors and show homes.
Across London, commercial floors have movement joints that break down under heavy foot traffic, while new homes need a neat, sound finish around frames, baths and kitchens before handover, in Newington Butts and beyond.
There’s a 12-month guarantee on every job.
- Place
- Newington Butts (SE1, SE17, SE11)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Also near Newington Butts
More services for Newington Butts
When to call us in Newington Butts
A new house holds a lot of water from the build, which takes a year or two to dry out. Drying timber shrinks and pulls joints apart.
The most common problems we see are:
- Leaking shower tray seals in a new home
- Sealant that never bonded to the surface
- Messy sealant that spoils new finishes
- Plot mastic for developers ahead of handover
Newington Butts is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
What to look for in a quote
- What happens if they find a problem under the old sealant
- How long to leave it before use
- Whether VAT is included
- What guarantee comes with the work
Newington Butts: your questions answered
Do you cover Newington Butts for new build mastic?
Yes, Newington Butts is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and let us know what needs doing, and we will give you a clear price.
Can you help a landlord with a rental near Elephant & Castle station?
Yes. We work for landlords and letting agents as well as homeowners, and several properties can go on one quote. You can call 0345 464 0079 or drop us an email with the details for a clear quote.
Do you take out the old sealant first?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so any old material comes out before anything new goes in.
What sealant do you use?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
How much does new build mastic cost in Newington Butts?
Size, access and the old material all affect the cost. Ask us for a quote.
Is it messy?
Not at all. We work neatly, protect the area around the joints and tidy up afterwards.
Do you have insurance?
Yes, we’re fully insured for domestic and commercial work.
Does someone need to be in?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly.
Keeping the joints in good condition
Looking after new joints is easy:
- Wipe joints with warm soapy water
- Report sealant problems to your builder during the snagging period
- Ventilate bathrooms well, especially in the first year
- Photograph failed sealant before it’s redone
Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day before water reaches them.
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.
New homes and floors in Newington Butts
Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the managing agent. 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.
For new homes near Elephant & Castle station, it’s worth checking the sealant early, while snags are still fresh.
Newington Butts is about 1 mile south-west of London, in Greater London. We provide new build mastic to homes and businesses in Newington Butts and the surrounding area. Newington Butts is one of 764 towns and villages in Greater London we cover for new build mastic.
Postcode districts we cover here for new build mastic: SE1, SE17 and SE11. Whether your property is on Dante Road, Oakey Lane and Ash Avenue or anywhere close by, we can help. You’ll find Newington Butts on the A302 and A3202, which makes it straightforward to reach. We also cover Elephant and Castle (1 mile north), St George's Fields (1 mile north-west), Vauxhall (1 mile west), Lambeth (1 mile west) and Kennington (1 mile south-west). We also work in nearby towns such as City of Westminster (3 miles north-west), Marylebone (3 miles north-west), Kensington (4 miles west), Walthamstow (7 miles north-east), Hoxton (3 miles north) and Hampstead (5 miles north-west).
Landmarks near Newington Butts
We work in homes and buildings around Elephant and Castle pub, Lambeth Palace Library and Crampton Primary and the streets around them. Nearby too are Notre Dame Roman Catholic Girls' School (within half a mile north-west) and Newington Gardens (less than half a mile north-east). There’s a railway station in Newington Butts itself: Elephant & Castle station. Well-known places in the area include The Walworth Clinic (less than half a mile south-east) and Baynard's Castle (1.3 miles north). Not far away are Bellenden Road Nature Garden and St. James's Park Lake.
How it works
Our applicators work methodically: protection first, then preparation, sealing and a tidy-up. For most jobs that takes anything from a few hours to several days, depending on the number of plots, and the area is left clean. In a London area like Newington Butts, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- Each joint is checked for movement before we start.
- 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.
- The finished joints are checked and the cure times given.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- For indoor joints, keep the area dry beforehand if you can
- Tell us about any water getting in
Get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, ring 0345 464 0079 or email us.
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When something else is needed
A few problems are outside what sealant work can do:
- Movement caused by a poorly fitted tray or bath
- Leaking fittings rather than failed sealant
- Disputes or warranty claims with your builder
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think before you book.
What we seal
- Show homes
- Skirting & floors
- Bathrooms & en suites
- Windows & doors
- Kitchens
- Plot handovers
Work for landlords, hotels and businesses
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we’re fully insured for the work.