Greater London · England
New-build mastic & snagging in Broad Green, Greater London
Plot mastic for developers and snagging failed sealant in new homes in Broad Green, with a 12-month guarantee on every job. Call for a quick quote.
- Worktop and upstand sealant coming away
- Joints pulling apart as timber shrinks
- Frame joints opening as the plaster dries
Landlords, agents and businesses in Broad Green
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
About our new build mastic in Broad Green
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. If you are dealing with messy sealant that spoils new finishes and sealant work across a run of new homes, we can help, on windows & doors, plot handovers and kitchens alike.
From brand-new flats to converted terraces with new flooring, London has every kind of floor. Every joint between floor, skirting and threshold has to cope with some movement, in Broad Green as anywhere.
Each job carries a 12-month guarantee, whatever its size.
- Where
- Broad Green (CR0, CR7, CR90)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We cut it out and start again.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
FAQs for Broad Green
I let a flat near West Croydon station. Can you help?
Yes, we work for landlords and agents. Just call 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear price.
Do you cover Broad Green for new build mastic?
Yes. We work across London and the South East, and Broad Green is part of that. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we will send you a clear quote.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used before we leave.
My new home is still under warranty. Should I contact you?
While the snagging or warranty period runs, the builder should be your first contact. If it isn’t sorted, or keeps failing, get in touch with us.
What do you need from me for a quote?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply call 0345 464 0079 or drop us an email.
Can you work on commercial sites?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
Can you do plot mastic on a new development?
Yes. Plot mastic and second-fix sealing for developers is part of our work. Send the schedule and any specification and we will give you a quote.
Are you an approved applicator?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we’re part of it.
What sealant work cannot fix
We will always be straight with you, so here’s what sealant can’t fix:
- Broken tiles or a split tray
- Plumbing faults behind the sealant
- A tray or bath that isn’t properly supported, until it’s fixed
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly before booking.
Where we work in Broad Green
- Skirting & floors
- Plot handovers
- Kitchens
- Show homes
- Bathrooms & en suites
- Windows & doors
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Follow the cure time we give you
- Wipe joints with warm soapy water
- Check bath and shower seals every few months as the house settles
- Don’t wait for the house to settle if water is getting through
Follow the cure time we give you before the area gets wet. Most silicones need around a day.
Mould takes hold quickly in sealant that has gaps or lifted edges. Resealing before mould gets in saves a harder job later.
Why act early in Broad Green
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Dealing with it early keeps the damage away from ceilings, floors and finishes. In a London flat, a failed joint rarely stays your problem alone: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Instead of a standard rate, we price the job in front of us: the amount of work, the old material and the access. The price is agreed before we begin.
Why book with us
- Old sealant always removed completely
- An ARBOMaster approved applicator
- Trusted Arbo and Everbuild sealants
- Sanitary silicone with an anti-fungal additive in wet areas
Read what affects the cost and our reviews.
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. After that, the work takes a few hours in a single home. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- 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.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Where the joints are inside, avoid wetting them before we arrive
- Tell us about any previous sealing or DIY attempts
How to get a quote
For a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
Related advice
Do you need new build mastic in Broad Green?
Later trades and the final clean can damage fresh sealant. A bead disturbed before it has cured may never seal properly, and the problem shows up after you move in.
It’s worth asking for a quote if you see:
- Kitchen sealant that has pulled off the wall
- Internal frame sealant that has split
- Cracked caulk along new skirting
- Joints pulling apart as timber shrinks
As a London address, Broad Green can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Before you book anyone
- How the joint is cleaned and prepared
- Whether you can choose the colour
- Which sealant they’ll use, and why
- What the cure time is
New build mastic around Broad Green
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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you’ve bought a new home near West Croydon station, the sealant around baths, showers and frames is worth checking in the first year or two.
Broad Green is about 6 miles south of Stockwell, in Greater London. We carry out new build mastic for homes and businesses in Broad Green, as part of our work across Greater London. 764 places in Greater London are on our list. For nearby work, see our London page.
Here we cover the CR0, CR7 and CR90 postcode area for new build mastic. Streets in the area include York Road, Nova Road and Lion Road, all of which we cover. If you are just outside Broad Green, we cover Old Town (1 mile south), Beddington (2 miles south-west), Waddon (2 miles south), Bandonhill (2 miles south-west) and Wallington (2 miles south-west). Further out, we also cover London (8 miles north), City of Westminster (9 miles north), Marylebone (9 miles north), Kensington (9 miles north-west), St Pancras (10 miles north) and Shoreditch (10 miles north).
Local landmarks in Broad Green
Around Broad Green, our work takes us to homes and buildings near Harris Invictus Academy Croydon, The Half Moon pub and Waddon Ponds, among other places. For rail, the closest station is West Croydon station, about 0.6 miles south of the centre. Other landmarks nearby include Centrale Croydon (0.8 miles south) and Croydon University Hospital (less than half a mile north-west). For a walk, there’s Duppas Hill and Biggin Wood.