Greater London · England
New-build mastic & snagging in North Brixton, Greater London
Professional new build mastic in and around North Brixton, with old sealant always removed completely and a 12-month guarantee.
- Beads laid onto grit and dust from the build
- Untidy sealant flagged on a snagging list
- Gaps behind new kitchen upstands
Joints and finishes in North Brixton homes
Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For new homes near Loughborough Junction station, it’s worth checking the sealant early, while snags are still fresh.
North Brixton is about 2 miles south-west of London, in Greater London. We provide new build mastic to homes and businesses in North Brixton. North Brixton is one of 764 towns and villages in Greater London where we work for new build mastic.
Our applicators cover all of SW9, SW8 and SE5 for new build mastic. Local streets include Lett Road, Lorn Road and Oak Square, and we cover them all. Main roads around North Brixton include the A203, which makes travel easy. Neighbouring places we cover for new build mastic include Angell Town (1 mile south), Little Portugal (1 mile west), Stockwell (1 mile south-west), South Lambeth (1 mile north-west) and Kennington (1 mile north-west). We also work in nearby towns such as City of Westminster (3 miles north-west), Marylebone (3 miles north-west), Kensington (4 miles north-west), St Pancras (4 miles north), Shoreditch (4 miles north-east) and Walthamstow (9 miles north-east).
Local landmarks in North Brixton
Locally, jobs take us to homes and businesses close to The Crown & Anchor pub, Lambeth Palace Library and Durand Academy. You’ll also find Max Roach Park (0.5 miles south) and Platanos College (within half a mile west). The nearest railway station is Loughborough Junction station, about 0.7 miles south-east. Well-known places in the area include Type Museum (under half a mile west) and St Giles' Hospital (1.3 miles east). Green spaces nearby include Battersea Park Lake and Knight's Hill.
New build mastic in North Brixton
A new house keeps drying out and settling for its first couple of years. Timber shrinks, plaster dries and baths and trays bed down, and sealant applied in a hurry at handover can split. We are often asked to deal with frame joints opening as the plaster dries and kitchen sealant that has pulled off the wall, on plot handovers, skirting & floors and windows & doors.
Shops, offices and commercial units across London have hard-wearing floors with movement joints that need resealing as they wear, and new homes need their plot mastic finished properly before handover, in North Brixton and beyond.
Whatever the size of the job, it’s backed by our one-year guarantee.
- Location
- North Brixton (SW9, SW8, SE5)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
The biggest DIY mistake is sealing over old sealant. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
How the job changes by surface
Plot handovers
Plot mastic is carried out to the developer’s schedule. Each joint is cleaned and primed where needed so the sealant lasts.
Skirting and floors
Where the floor meets a bath panel or kitchen plinth, the joint keeps mop water out. They get a flexible, water-resistant sealant.
Do you need new build mastic in North Brixton?
Later trades and the final clean can damage fresh sealant. If it’s disturbed before curing, the joint can be left weak.
Any of these means the joints need attention:
- New-build shower sealant that has already split
- Internal frame sealant that has split
- Cracks appearing as a new home settles
- Plot mastic for developers ahead of handover
As a London address, North Brixton can be tricky for parking: let us know about parking bays, permits or a driveway.
Comparing quotes
- How long the guarantee is
- What happens if they find a problem under the old sealant
- Whether they seal over old material or remove it
- How the colour is chosen
Your questions about new build mastic in North Brixton
Do you work for landlords with property near Loughborough Junction station?
Yes. We work for landlords and letting agents as well as householders. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll send you a clear quote.
Is North Brixton in your area for new build mastic?
Yes. We work across London and the South East, and North Brixton is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.
What colour sealant will you use?
That depends on what the joint meets: white or clear for most sanitary joints, colours for worktops, floors and frames. We will agree it with you first.
How long does new build mastic take?
Typically it takes anything from a few hours to several days, depending on the number of plots. Bigger jobs take longer.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
How much does new build mastic cost in North Brixton?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before any work starts.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Will the old sealant be removed?
Yes, every time. New silicone does not stick to old silicone, so the joint is cleaned back first.
Why it’s worth doing now in North Brixton
For developers, getting the sealant right first time saves return visits. Snagging visits for failed sealant cost time on every plot, and they’re avoidable with good preparation. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Putting it right early is much less trouble.
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why book with us
- Fully insured
- Rated 4.9 stars on Google
- 20+ years of sealant experience
- ARBOMaster approved applicator
Read what affects the cost and our reviews.
Aftercare tips
Joint life depends on how it’s used and looked after. We suggest:
- Put sealant faults on your snagging list early
- Look at the sealant regularly in the first couple of years
- Photograph failed sealant before it’s redone
- Act quickly if a seal starts to leak
Keep the bathroom ventilated, especially in the first year. Use the extractor fan or open a window after showers.
Lifting sealant traps moisture and mould behind it. Resealing before mould gets in saves a harder job later.
Also near North Brixton
What else we do in North Brixton
How it works
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. Most jobs take a few hours in a single home. For a job in North Brixton, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- Each joint is checked for movement before work begins.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- We check every joint and leave you with the cure times.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Let us know about earlier repairs to the joints
- Mention any leaks or damp you’ve noticed
Get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will talk you through the work.
Related advice
Landlords, agents and businesses in North Brixton
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.
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.