Greater London · England
Eden Park New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes in Eden Park, with a 12-month guarantee on every job. Call for a quick quote.
- Smeared, uneven beads picked up at snagging
- Internal frame sealant that has split
- Worktop and upstand sealant coming away
What we cannot put right
In fairness, some problems need a different trade:
- Plumbing faults behind the sealant
- Baths and trays that move too much for sealant to cope with
- Disputes or warranty claims with your builder
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly.
What we seal
- Windows & doors
- Skirting & floors
- Plot handovers
- Show homes
- Bathrooms & en suites
- Kitchens
New build mastic in Eden Park
Failed shower seals, gaps along the skirting and messy beads are common items on a new-home snagging list. While the builder’s snagging or warranty period runs, report it to them first, and if it isn’t put right, get in touch with us. We work on windows & doors, bathrooms & en suites and skirting & floors, and common reasons people get in touch are shower seals failing in the first year or two and worktop and upstand sealant coming away.
From brand-new flats to converted terraces with new flooring, London has every kind of floor. Wherever a floor meets a wall, a skirting or a threshold, the joint has to allow for movement.
Your job is guaranteed for a year, as with all our work.

- Place
- Eden Park (BR3, BR4, CR0)
- Wider area
- Greater London
- Cover
- A year, on every job
- Price
- A clear price before we start
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Why it’s worth doing now in Eden Park
For developers, getting the sealant right first time saves return visits. Every return visit for a failed seal takes time, and they’re avoidable with good preparation. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Eden Park, the repair is bigger than a sealant job.
The cost depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before we start, so you know where you stand.
Why us?
- A sealant colour to suit the surroundings
- Colour agreed with you before we start
- 20+ years of sealant experience
- Old sealant always removed completely
See our cost guide and our reviews.
How to look after the new joints
A little care helps the new joints last. We recommend:
- Look at the sealant regularly in the first couple of years
- Ventilate bathrooms well, especially in the first year
- Wait for the cure time before using a resealed shower
- Clean sealant with mild detergent, not abrasives
Watch the joints as the house settles. Small gaps can appear as the house dries, and they’re simple to reseal once movement has slowed.
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.
Nearby places to Eden Park
Also in Eden Park
What new build mastic looks like in Eden Park
Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or 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.
Eden Park is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Eden Park is about 1 mile south of Beckenham, in Greater London. If you need new build mastic in Eden Park, please call 0345 464 0079 or email us for a quick quote. We cover Greater London from our Crawley base. Our area takes in 764 places across Greater London, from the larger towns to small villages. London is on our list too, about 8 miles from Eden Park.
Work in BR3, BR4 and CR0 works the same way as everywhere else we cover. Streets in the area include Whitstone Lane, Brockwell Avenue and St Martin's Lane, all of which we cover. If you are just outside Eden Park, we cover West Wickham (1 mile south), Spring Park (1 mile south), Coney Hall (1 mile south), Elmers End (1 mile north-west) and Monks Orchard (1 mile west). Within a short drive, we also cover London (8 miles north), City of Westminster (10 miles north-west), Marylebone (10 miles north-west), Kensington (11 miles north-west), St Pancras (10 miles north-west) and Shoreditch (10 miles north).
Landmarks near Eden Park
In Eden Park, that means homes and buildings near Millers Pond, The Railway Hotel - West Wickham Restaurant and Unicorn Primary School and the streets around them. There’s a railway station in Eden Park itself: Eden Park station. Other landmarks nearby include National Psychosis Unit (0.6 miles south-west) and Bethlem Museum of the Mind (2.4 miles east). Open spaces near Eden Park include Summer Hill and Bramley Bank.
What the job involves on each surface
Skirting and floors
Floors and skirting move as the house dries and the heating runs. We use a flexible product rather than caulk.
Windows and doors
External mastic around new windows and doors is sometimes rushed or missed. It’s resealed with an exterior sealant suited to the frame and wall.
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 does not work out, we can still put it right.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
When to call us in Eden Park
Later trades and the final clean can damage fresh sealant. A bead disturbed before it has cured may never seal properly.
Most people get in touch when they notice something like this:
- Second-fix sealing on new plots
- New-build shower sealant that has already split
- Beads laid onto grit and dust from the build
- Cracks appearing as a new home settles
For new homes near Eden Park station, it’s worth checking the sealant early, while snags are still fresh.
Before booking anyone
- Which sealant they’ll use, and why
- How the joint is cleaned and prepared
- Are they insured?
- Is VAT in the price?
Questions from Eden Park
Is Eden Park in your area for new build mastic?
Yes. We work across London and the South East, and Eden Park is part of that. You can ring 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear quote.
I let a flat near Eden Park station. Can you help?
Yes. We work for landlords and agents as well as homeowners, and several properties can go on one quote. Just ring 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 hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
Can you quote for more than one area?
Yes. More than one area can be quoted together.
How long will you be here?
Most jobs take a few hours for most snagging lists, longer for a run of plots, including the preparation. We will confirm how long when we quote.
Will you leave a mess?
No. The area is protected while we work and cleaned up afterwards.
Can you work from my snagging list?
Yes. Send it with pictures and we will quote for the sealant items. Items that need a plumber, tiler or the builder are flagged.
Do you have insurance?
Yes, we are fully insured for domestic and commercial work.
What happens on the day
When we get to you, we compare the joints with what we discussed. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to several days, depending on the number of plots. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Eden Park. A visitor permit or a nearby bay makes the visit run more smoothly.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out down to clean surfaces.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- Let us know if you’ve seen damp or leaks
- Mention any parking rules near the property
Getting a quote
To get a quote, phone 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before work begins.
