Greater London · England
New-build mastic & snagging in Peckham, Greater London
Plot mastic for developers and snagging failed sealant in new homes for Peckham, backed by a one-year guarantee. Ask us for a quote.
- Gaps opening as the house dries out and settles
- Worktop and upstand sealant coming away
- Untidy sealant flagged on a snagging list
New build mastic in Peckham
Building dust is behind a lot of failed new-build sealant. We clean every joint thoroughly and prime where the surface and product need it, so the new bead bonds properly instead of bonding to the dust. We work on kitchens, show homes and windows & doors, and common reasons people get in touch are sealant that never bonded to the surface and leaking shower tray seals in a new home.
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.
Our work is backed for twelve months, in Peckham and everywhere else we cover.
- Location
- Peckham (SE15, SE14, SE5)
- Region
- Greater London
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
New homes and floors in Peckham
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, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you’ve bought a new home near Queens Road Peckham station, the sealant around baths, showers and frames is worth checking in the first year or two. As a London address, Peckham can be tricky for parking: let us know about parking bays, permits or a driveway.
Peckham is about 2 miles south-east of London, in Greater London. If you need new build mastic in Peckham, please ring 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover Greater London. Our Greater London coverage runs to 764 places, Peckham among them.
Jobs for new build mastic in SE15, SE14 and SE5 is quoted and booked the same way as anywhere else. That includes homes and businesses on Rye Lane, Relf Road and Mona Road. With the A2215 close by, Peckham is simple for us to get to. Other places close to Peckham include Nunhead (1 mile south-east), Telegraph Hill (1 mile south-east), South Bermondsey (1 mile north), Surrey Canal (1 mile north-east) and East Dulwich (1 mile south-west). Within a short drive, we also cover City of Westminster (5 miles north-west), Marylebone (5 miles north-west), Kensington (6 miles west), St Pancras (4 miles north-west), Shoreditch (4 miles north) and Walthamstow (8 miles north).
Landmarks near Peckham
Around Peckham, our work takes us to homes and buildings near Brimmington Park, The St Thomas the Apostle College and The Kentish Drovers pub. Peckham has its own railway station: Queens Road Peckham station. Other landmarks nearby include Peckham Platform (within half a mile north-west) and Southwark Adult Education Institute (less than half a mile east). The countryside around Peckham includes St. James's Park Lake and Knight's Hill.
Why act early in Peckham
For developers, getting the sealant right first time saves return visits. Every return visit for a failed seal takes time. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in Peckham, the repair is bigger than the sealant job would have been.
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
What you get with us
- We agree the colour with you first
- Homes, businesses and hotels
- Sealant colour chosen to suit
- One-year guarantee on every job
Take a look at what affects the cost or our reviews.
How it works
At the end, we look at the finished work together. The visit itself normally takes a few hours in a single home, depending on the size of the job. In Peckham, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- Each joint is checked for movement before work begins.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
Getting ready for the visit
- Clear the area around the work
- Try not to wet indoor joints just before the visit
- Tell us about any water getting in
Get a quote
We do not publish a price list. Instead, your job gets its own clear quote. To get started, ring 0345 464 0079 or send us an email.
Advice
Towns and villages near Peckham
Also in Peckham
Common questions in Peckham
Can parking be tricky for a visit in Peckham?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
I let a flat near Queens Road Peckham station. Can you help?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear quote.
Should I try DIY first?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme.
Where do you work from?
Our base is Crawley. Our area covers South East England, London and Scotland.
How long does new build mastic take?
It depends on the size of the job, but most jobs take a few hours in a single home. We’ll tell you when we quote.
Can you work from my snagging list?
Yes. Snagging lists are a common starting point for us. We will go through the sealant items and agree what we will do.
Is it worth resealing while the house is still settling?
Any seal that’s leaking should be redone right away. For small cosmetic gaps, waiting until the house has settled can save doing them twice.
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
DIY sealant or a professional job?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
What affects the cost of new build mastic
Your quote is based on your job. We look at:
- The type of sealant required
- Any working-time requirements on site
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Ask us for a quote and we’ll explain what it covers.
What we need to know
To make quoting easier, let us know:
- Roughly how big the job is
- The address or postcode of the job
- Any access issues, like height or stairs
- Whether it’s a home or a business
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. Photos by email help us understand the job, and we will take it from there.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Use the extractor fan every time you shower
- Follow the cure time we give you
- Record problems with dated pictures
- Resist patching a failed seal with a tube from the DIY shop
Avoid standing on the rim of the bath or the edge of the tray in the first few weeks. Report any movement in a bath or tray.
The sooner you deal with untidy or cracking sealant, the less there is to put right. Left alone, a small crack can become a leak over time.
What sealant work cannot fix
Some problems need a builder, plumber or other trade rather than us:
- Damaged fittings that need replacing
- Leaks from pipes, valves or wastes, which need a plumber
- Disputes or warranty claims with your builder
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Skirting & floors
- Windows & doors
- Plot handovers
- Kitchens
- Bathrooms & en suites
- Show homes