Greater London · England
New-build mastic & snagging in Shirley, Greater London
Plot mastic for developers and snagging failed sealant in new homes for Shirley, backed by a one-year guarantee. Call for a quick quote.
- Plot mastic for developers ahead of handover
- Untidy sealant flagged on a snagging list
- Sealant applied over dusty or wet surfaces
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Ventilate bathrooms well, especially in the first year
- Keep pictures and emails about snagging items
- Wipe joints with warm soapy water
- Put sealant faults on your snagging list early
Keep an eye on the joints over the first couple of years. Hairline gaps can open as timber and plaster dry, and they’re simple to reseal once movement has slowed.
Report failed sealant to the builder while you’re in the snagging period. After that, putting it right may fall to you, so raise it early.
New build mastic in Shirley, done properly
We work in new homes and on new-build sites across Shirley. Whether it’s one en suite or a run of plots, the method is the same: remove, clean, prime where needed, then a neat new bead. Typical jobs include shower seals failing in the first year or two and skirting joints opening in the first winter, across plot handovers, kitchens and skirting & floors.
Much of London’s new housing is flats in larger developments. In a new development, snags are often reported through the developer or the managing agent, and shower seals that fail early, skirting joints that open up and gaps at thresholds are all common snags.
All our work comes with our 12-month guarantee.
- Location
- Shirley (CR0, SE25, CR9)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by surface
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We remove cracked sealant and apply a flexible one that suits the frame.
Kitchens
Beside the sink, the joint takes water every day. We use a sealant suited to kitchens suited to the job.
What happens if it’s left?
It often makes sense to do all the sealant items on a snagging list together. It’s one visit, one quote and one set of cure times. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Shirley, the repair is bigger than a sealant job.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we will explain what it covers.
What you get with us
- We leave the area clean and tidy
- Sealant colour chosen to suit
- More than 20 years in sealant work
- We are fully insured
Take a look at what affects the cost or customer reviews.
Towns and villages near Shirley
What else we do in Shirley
Landlord and commercial work in Shirley
Housing providers, facilities teams and property managers book us too in Shirley and across Greater London. Several sites can be quoted together.
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
What affects the quote in Shirley
We don’t publish a price list. What we look at:
- Access and height
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
- The size of the job
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Helping us quote
When you contact us, these details help:
- Any previous sealing or DIY work
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
- Photos by email, if that is easy
Getting a quote is simple: tell us what needs doing and where and its rough size. A few photos by email make the job easier to understand, and we’ll come back to you with a quote.
What new build mastic looks like in Shirley
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, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
As a London address, Shirley can be tricky for parking: let us know about parking bays, permits or a driveway. For new homes near Elmers End station, it’s worth checking the sealant early, while snags are still fresh.
Shirley is about 2 miles north-east of Croydon, in Greater London. Anywhere in CR0, we cover new build mastic for homes and businesses. Across Greater London, we cover 764 places, and Shirley is one of them. There’s also a page for London, about 8 miles away.
Postcode districts we cover here for new build mastic: CR0, SE25 and CR9. Whether your property is on Poppy Lane, Homer Road and Craven Road or anywhere close by, our applicators can take on the job. Being close to the A232, Shirley is easy for our applicators to reach for new build mastic. Close by, we work in Monks Orchard (1 mile north), Shirley Oaks (1 mile west), Addiscombe (1 mile west), Ashburton (1 mile north-west) and Woodside (1 mile north-west). We also work in nearby towns such as London (8 miles north), City of Westminster (10 miles north-west), Marylebone (10 miles north-west), Kensington (10 miles north-west), St Pancras (10 miles north) and Shoreditch (10 miles north).
Landmarks near Shirley
Typical jobs here are in homes near The Cricketers pub, Ashburton Park and Orchard Way Primary School. The nearest railway station is Elmers End station, about 1.2 miles north. Nearby you will also find Crystal Palace Museum (2.8 miles north) and St George's Walk (2 miles west). Open spaces near Shirley include Duppas Hill and Bramley Bank.
Common questions in Shirley
Can you help a landlord with a rental near Elmers End station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before work begins.
Is parking a problem for a job in Shirley?
Parking in Shirley, as in most of London, takes a little planning: a visitor permit or a bay close to the door helps a lot.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you when we finish.
How long does new build mastic take?
Most jobs take a few hours in a single home, including the preparation. We will confirm how long when we quote.
Do you come to Shirley?
Yes, we do. Our applicators work in Shirley.
Will you just run a new bead over the existing one?
No. Sealing over old sealant looks fine for a few weeks, then lifts. All the old sealant comes out before we start.
Do you remove the old sealant?
Yes. Sealing over old sealant is the main reason resealing fails early, so we never do it.
When is the best time to reseal in a new build?
Where water is getting through, do not wait. Hairline cosmetic gaps can wait until the house has settled.
DIY sealant or a professional job?
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
Some sealant jobs are within reach of a careful DIYer, 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 we do, step by step
Before we leave, we go over the finished joints with you and tell you how long to leave it. The visit itself normally takes a few hours for most snagging lists, longer for a run of plots, depending on the size of the job. In Shirley, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- We look at why each joint failed, including any movement.
- 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.
- The finished joints are checked and the cure times given.
Preparing for the visit
- On commercial sites, let us know about site rules
- Tell us about any water getting in
- Keep pets and children clear of the area while we work
Get a quote
We do not publish a price list, because every job is different. Instead, your job gets its own clear quote. To arrange one, call 0345 464 0079 or email us.