Greater London · England
New Build Mastic in Norbury
Plot mastic for developers and snagging failed sealant in new homes for householders, landlords and businesses in Norbury. Fully insured, ARBOMaster approved and guaranteed for a year.
- Internal frame sealant that has split
- Messy sealant that spoils new finishes
- Gaps behind new kitchen upstands
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Baths and trays that move too much for sealant to cope with
- Cracked trays, tiles or worktops
- Disputes or warranty claims with your builder
If in doubt, phone 0345 464 0079 or send us an email and we’ll say what we think.
Surfaces we seal
- Bathrooms & en suites
- Show homes
- Windows & doors
- Kitchens
- Skirting & floors
- Plot handovers
About our new build mastic in Norbury
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. While the builder’s snagging or warranty period runs, report it to them first, and if it is not put right, get in touch with us. We work on bathrooms & en suites, windows & doors and kitchens, and people most often call us about gaps between new skirting and floors and beads laid onto grit and dust from the build.
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.
All our work comes with a 12-month guarantee, wherever you are in Greater London.
- Location
- Norbury (CR7, SW16, SE19)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Also near Norbury
More services for Norbury
Common questions in Norbury
Can you help a landlord with a rental near Norbury station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
Can parking be tricky for a visit in Norbury?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Should I wait before resealing?
If the seal has failed and water is getting in, do it now. Small gaps that are just cosmetic can be resealed once movement has slowed.
Can I send you my snagging list?
Yes. Send it with photos and we will quote for the sealant items. Items that need a plumber, tiler or the builder are flagged.
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. After that, simply phone 0345 464 0079 or send us an email.
What does new build mastic cost?
Size, access and the old material all affect the cost. Call for a quick quote and we will talk you through it.
Do you do commercial work?
Yes. Larger jobs can be planned room by room or area by area.
Are you insured?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
How to look after the new joints
How long the joints last depends on use and care. We suggest:
- Don’t seal over failed sealant yourself
- Do not wait for the house to settle if water is getting through
- Keep pictures and emails about snagging items
- Put sealant faults on your snagging list early
Avoid standing on the rim of the bath or the edge of the tray. Report any movement in a bath or tray.
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 in a busy bathroom.
What happens if it’s left?
A failed shower or bath seal in a new home lets water into floors and walls that are still drying out. Resealing promptly protects the new finishes around it. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Putting it right early is much less trouble.
Homes and businesses are quoted the same way: 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.
Why us?
- A sealant colour to suit the surroundings
- Homes, businesses and hotels
- Sanitary silicone with an anti-fungal additive in wet areas
- Rated 4.9 stars on Google
Take a look at our cost guide or our reviews.
Joints and finishes in Norbury homes
Much of London’s new housing is flats in larger developments, where snagging may go through the developer or managing agent. The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
As a London address, Norbury can be tricky for parking: let us know about parking bays, permits or a driveway. For new homes near Norbury station, it’s worth checking the sealant early, while snags are still fresh.
Norbury is about 1 mile north of Thornton Heath, in Greater London. Homes, rented property, offices and hotels in Norbury is covered for new build mastic. The work is guaranteed for a year. We cover 764 towns and villages across Greater London, from the larger towns to small villages. We also work in London, around 6 miles away.
All of CR7, SW16 and SE19 is within our area for new build mastic, from the main roads to the quietest streets. Whether your property is on Green Lane, Croft Road and Downs Road or a nearby road, our applicators can take on the job. We also cover Pollards Hill (1 mile north), Thornton Heath (1 mile south), Streatham (2 miles north-west), Streatham Park (2 miles north-west) and Mitcham (2 miles west). Within a short drive, we also cover London (6 miles north), City of Westminster (8 miles north), Marylebone (8 miles north), Kensington (7 miles north-west), St Pancras (8 miles north) and Shoreditch (8 miles north).
Local landmarks in Norbury
Locally, jobs take us to homes and businesses close to Norbury Manor Business and Enterprise College for Girls, Grangewood Park and Silburn Reid, among other places. Norbury’s nearest station is Norbury station, about 0.6 miles west. Well-known places in the area include Crystal Palace Museum (1.5 miles north-east) and Croydon University Hospital (1.3 miles south). Green spaces nearby include Knight's Hill and Biggin Wood.
What we do, step by step
Once we are on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. After that, the work takes a few hours in a single home. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Norbury. It helps if you can point us to a visitor permit or a bay close to the door.
- Each joint is checked for movement before any work starts.
- 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
- Mention any sign-in or site rules at work premises
- Mention any leaks or damp you’ve noticed
- Plan for the work area to be out of bounds to pets and children
How to get a quote
Call for a quick quote, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved.
Related advice
Landlords, agents and businesses in Norbury
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
Surface by surface
Kitchens
Sink joints are wet all the time. We use a sealant suited to kitchens suited to the job.
Bathrooms and en suites
En suite showers are a common source of leaks into the room below. Resealing properly keeps water where it belongs.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone will not bond to old, so it peels away and traps moisture behind it. Everything old must be removed first.
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.