Greater London · England
New-build mastic & snagging in Kenley, Greater London
New build mastic for Kenley, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Gaps opening as the house dries out and settles
- Shower seals failing in the first year or two
- Cracked caulk along new skirting
New build mastic in Kenley, done properly
Some owners wait for the first year’s movement before having joints redone. That makes sense for small gaps that are just cosmetic, but a seal that’s letting water through needs doing now. We work on windows & doors, plot handovers and kitchens, and common reasons people get in touch are worktop and upstand sealant coming away and gaps opening as the house dries out and settles.
Much of London’s new housing is flats in larger developments. Snagging there often goes through the developer or managing agent, and shower seals that fail early, skirting joints that open up and gaps at thresholds are all common snags.
You are covered for a year from the day we finish. If anything is not right with it, call 0345 464 0079 or email us.
- Location
- Kenley (CR8, CR2)
- Region
- Greater London
- Cover
- A year, on every job
- Quotes
- A clear price before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Why deal with it now?
Sealant done properly at handover means fewer callbacks. Snagging visits for failed sealant cost time on every plot. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Kenley, the repair is bigger than a sealant job.
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Why Kenley customers choose us
- Anti-fungal sanitary silicone in wet areas
- Sealant colour chosen to suit
- Over 20 years’ experience
- We leave the area clean and tidy
Take a look at our cost guide or what customers say.
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Watch for new gaps as the house dries out
- Keep water off fresh sealant until it has cured
- Avoid scourers and strong chemicals on sealant
- Resist patching a failed seal with a tube from the DIY shop
Photograph failed sealant before it’s redone and keep the builder’s replies. It’s useful if you need to raise other issues later.
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.
The process
When we arrive, we look over the joints with you first. We protect the surfaces around the joints before any work starts. Most jobs take a few hours for most snagging lists, longer for a run of plots. In a London area like Kenley, the main things to plan are parking and access: let us know about parking, the floor we will be working on and any lift or shared entrance.
- First we work through your snagging list or plot schedule with you.
- The old bead comes out in full, with no layer left behind.
- We clean off dust from the build and prime the surfaces where the product needs it.
- New sealant suited to each joint is applied and tooled neatly.
- We check every joint and tell you how long each needs to cure.
Preparing for the visit
- Move anything stored near the joints
- For indoor joints, keep the area dry beforehand if you can
- On commercial sites, let us know about site rules
How to get a quote
A good description makes for an accurate quote. Let us know the location, the problem and roughly how many joints, and add pictures by email if you can.
Advice
What affects the quote in Kenley
For a quick quote, just ask. What matters most is:
- Whether there’s mould to deal with
- How easy the joints are to reach
- Working hours on commercial sites
- The old material and how stubborn it is
The cost depends on how much there is to do, how much old material has to come out and access to the work. We give a clear quote before any work starts.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- Where the property is
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- Whether it’s a home or a business
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved before giving you a price.
When to call us in Kenley
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.
Any of these means the joints need attention:
- Leaking shower tray seals in a new home
- Gaps behind new kitchen upstands
- Cracks appearing as a new home settles
- Sealant applied over dusty or wet surfaces
For new homes near Kenley station, it’s worth checking the sealant early, while snags are still fresh.
Comparing quotes
- What happens if they find a problem under the old sealant
- How much experience the applicator has
- Whether they’re fully insured
- Is VAT in the price?
Nearby places to Kenley
What else we do in Kenley
FAQs for Kenley
Do you cover Kenley for new build mastic?
Yes. Our work covers London and the South East, and Kenley is part of that. Just phone 0345 464 0079 or email us with a few details of the job, and we will send you a clear quote.
Can you help a landlord with a rental near Kenley station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Do you remove the old sealant?
Yes, every time. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
Why does sealant fail so quickly in new builds?
A new house dries and settles for a year or two, and sealant is often applied quickly onto dusty surfaces. Both lead to early failure.
Which products do you use?
It depends on the joint: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Should I wait before resealing?
Any seal that is leaking should be redone right away. For small cosmetic gaps, waiting until the house has settled can save doing them twice.
Will there be a smell?
Some sealants have a smell while they cure. Opening a window helps.
What do you need from me for a quote?
Only a few details: where it is, what you’ve noticed and how we reach it. Then ring 0345 464 0079 or email us.
DIY sealant or a professional job?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Surface by surface
Windows and doors
On new builds, external frame sealant can be patchy. It’s resealed with an exterior sealant suited to the frame and wall.
Skirting and floors
New homes often develop a gap between skirting and floor. We seal it with a flexible sealant that copes with the movement.
New build mastic around Kenley
Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the managing agent. Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
As a London address, Kenley can be tricky for parking: let us know about parking bays, permits or a driveway.
Kenley is about 1 mile south-east of Purley, in Greater London. Our applicators cover new build mastic for householders, landlords and businesses in Kenley and nearby, as part of our work across Greater London. Our area takes in 764 places across Greater London. You can also see our page for London, roughly 12 miles from Kenley.
Postcode districts we cover here for new build mastic: CR8 and CR2. You will find streets such as Oaks Road, Park Road and Roke Road, all of which we cover. Kenley is on the A22, so it’s easy for us to get to with everything needed for new build mastic. If you are just outside Kenley, we cover Riddlesdown (1 mile north), Sanderstead (1 mile north-east), Whyteleafe (1 mile south-east), Hamsey Green (1 mile east) and South Croydon (2 miles north). Larger places within reach include London (12 miles north), City of Westminster (13 miles north), Marylebone (14 miles north), Kensington (13 miles north), St Pancras (14 miles north) and Shoreditch (14 miles north).
Around Kenley
Typical jobs here are in homes near Dollypers Hill and Riddlesdown Collegiate. There’s a railway station in Kenley itself: Kenley station. Nearby you will also find St George's Walk (3.4 miles north) and Croydon Airport Visitor Centre (2.4 miles north). The countryside around Kenley includes Duppas Hill and Foxley Wood.