Greater London · England
New-build mastic & snagging in Pratt's Bottom, Greater London
New-build sealant joints in Pratt's Bottom need attention? We cut out the old, prepare the joints and apply the right sealant.
- Plot mastic for developers ahead of handover
- Gaps behind new kitchen upstands
- Joints pulling apart as timber shrinks
How we handle new build mastic in Pratt's Bottom
In a new home, every joint should have a clean, even bead. When the finish is smeared, patchy or already cracking, it’s worth putting right early, before water gets into the floor or walls. Typical jobs include worktop and upstand sealant coming away and cracks appearing as a new home settles, on plot handovers, skirting & floors and bathrooms & en suites.
Across London, commercial floors have movement joints that break down under heavy foot traffic, and new homes need their plot mastic finished properly before handover, in Pratt's Bottom and beyond.
All our work comes with our one-year guarantee, wherever you are in Greater London.
- Where
- Pratt's Bottom (BR6, TN14)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How the visit works
A visit follows a simple pattern: we check the joints, protect the area around them, carry out the job and tidy away. It normally takes a few hours for most snagging lists, longer for a run of plots. For a job in Pratt's Bottom, parking and access are the things to plan: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- We start by going through the snagging items or plot schedule with you.
- Every bit of the old builder’s sealant is cut out, with no layer left behind.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- Each bead is tooled and the cure times explained.
Before we arrive
- Keep children and pets away from the work area
- On commercial sites, let us know about site rules
- Mention any parking rules near the property
Get a quote
For a quote, call 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You will have a clear quote before any work starts.
Advice
New build mastic around Pratt's Bottom
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.
Pratt's Bottom is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Pratt's Bottom is about 3 miles south of Orpington, in Greater London. Every kind of property in Pratt's Bottom can book us for new build mastic. Every job comes with our 12-month guarantee. Across Greater London, we cover 764 places, and Pratt's Bottom is one of them. You can also see our page for London, about 14 miles away.
All of BR6 and TN14 is covered for new build mastic, from the main roads to the quietest streets. If you need new build mastic at a property on Orchard Road, Runciman Close and Downs View Close or a nearby road, our applicators can take on the job. We also cover the places around Pratt's Bottom: Halstead (1 mile south-east), Chelsfield (1 mile north-east), Bopeep (1 mile north-east), Badgers Mount (1 mile east) and Maypole (1 mile north-east). Further out, we also cover London (14 miles north-west), Shoreditch (15 miles north-west), Whitechapel (14 miles north-west), Stockwell (13 miles north-west), Orpington (3 miles north) and Wimbledon (15 miles west).
What’s near Pratt's Bottom
Around Pratt's Bottom, our work takes us to homes and buildings near Hewitt's Chalk Bank and Green Street Green Primary School and the streets around them. For rail, the closest station is Knockholt station, roughly 0.8 miles east of the centre. A little further out are Crofton Roman Villa (2.4 miles north-west) and Lullingstone Castle (3.8 miles east). Green spaces nearby include Betsom's Hill and Downe Bank Nature Reserve.
Questions from Pratt's Bottom
Can you help a landlord with a rental near Knockholt station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.
Is parking a problem for a job in Pratt's Bottom?
Parking in Pratt's Bottom, as in most of London, takes a little planning: a visitor permit or a nearby bay makes the day run more smoothly.
Can you work on commercial sites?
Yes. We can plan bigger jobs in stages to suit the site.
Do you come to Pratt's Bottom?
Yes. We are based in Crawley and work across South East England, London and Scotland, Pratt's Bottom included.
Is there any odour?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. Once we’ve agreed the job, you do not need to watch us work.
When is the best time to reseal in a new build?
For failed seals that let water through, the best time is now. Cosmetic gaps can wait until the first year or two of movement has passed.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is generally more efficient, so mention them when you ask for a quote.
Why act early in Pratt's Bottom
A quick bead over the top of the old sealant can look fine at first, but it won’t bond to the old layer. A lasting seal starts with removing the old one completely. 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. Dealing with it early is far simpler for homes in Pratt's Bottom.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, call 0345 464 0079 or drop us an email and we’ll give you an honest view and a quote.
Why us?
- We leave the area clean and tidy
- Every job guaranteed for a year
- 4.9 on Google from 180+ five-star reviews
- An ARBOMaster approved applicator
See our cost guide or customer reviews.
What sealant work can’t fix
It helps to know what we cannot do too:
- Cracking that points to a structural problem
- Disputes or warranty claims with your builder
- Movement caused by a poorly fitted tray or bath
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
What we seal
- Skirting & floors
- Bathrooms & en suites
- Kitchens
- Show homes
- Windows & doors
- Plot handovers
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Watch for new gaps as the house dries out
- Avoid scourers and strong chemicals on sealant
- Resist patching a failed seal with a tube from the DIY shop
- Keep water off fresh sealant until it has cured
Photograph failed sealant before it’s redone and keep the builder’s replies. It helps if anything else comes up during the warranty period.
Do not let the snagging period run out with sealant problems unreported. Once it ends, the repair may be down to you, so raise it early.
When to call us in Pratt's Bottom
When the heating goes on in the first winter, the house dries fast. Gaps open along skirting, frames and worktops.
Keep an eye out for any of the following:
- Kitchen sealant that has pulled off the wall
- Cracked sealant around new window and door frames
- Gaps opening as the house dries out and settles
- Smeared, uneven beads picked up at snagging
If you’ve bought a new home near Knockholt station, the sealant around baths, showers and frames is worth checking in the first year or two.
What your quote should include
- What happens if the job turns out different
- How long to leave it before use
- Whether the sealant suits the joint
- Whether they seal over old material or remove it
Places near Pratt's Bottom
Other services in Pratt's Bottom
What affects the quote in Pratt's Bottom
Every job gets its own quote. These are the things that affect it:
- Which sealant suits the joint
- How many areas need sealing
- When we can work, for business premises
- Mould in or behind the old joints
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 will go through it with you.
Helping us quote
Before you ask for a quote, have a think about:
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that’s easy
- Whether it’s a home or a business
- Access, such as stairs, a lift or height
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or send us an email with the details.
What the job involves on each surface
Kitchens
New-kitchen sealant is often applied in a rush. We take it out and reseal neatly, colour-matched where it shows.
Skirting and floors
Floors and skirting move as the house dries and the heating runs. We use a flexible product rather than caulk in a colour to suit.