Greater London · England
New-build mastic & snagging in West Norwood, Greater London
Specialist new build mastic for West Norwood: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Cracked sealant around new window and door frames
- Kitchen sealant that has pulled off the wall
- New-build shower sealant that has already split
What we are called out for in West Norwood
New homes are full of moisture from plaster, screed and concrete, which takes a year or two to dry out. Drying timber shrinks and pulls joints apart, and sealant that can’t keep up splits.
Most people get in touch when they notice something like this:
- Gaps behind new kitchen upstands
- Cracks appearing as a new home settles
- Shower seals failing in the first year or two
- Internal frame sealant that has split
West Norwood is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
What your quote should include
- How the joint is cleaned and prepared
- Whether VAT is included
- Whether you can choose the colour
- What the cure time is
New build mastic for homes and businesses in West Norwood
We never seal over a failed new-build bead. New silicone won’t bond to old silicone, so the joint is cut out, cleaned, dried and resealed. If you have skirting joints opening in the first winter and untidy sealant flagged on a snagging list, we can put it right.
New flats are going up across London, many of them in larger developments. Snagging there often goes through the developer or managing agent, and shower seals that fail early, skirting joints that open up and gaps at thresholds are all common snags.
Every job comes with a one-year guarantee, wherever you are in Greater London.
- Location
- West Norwood (SE19, SE27, SE21)
- Wider area
- Greater London
- Cover
- 12 months on all our work
- Quote
- A clear price before work begins
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
How the job changes by 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
As timber and screed dry, skirting and floors shift. We use a flexible product rather than caulk in a colour to suit.
Leave it or put it right?
A quick bead over the top of the old sealant can look fine at first, but it can’t bond to what’s underneath. A lasting seal starts with removing the old one completely. In a flat in West Norwood, failed sealant seldom stays inside your own four walls: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Doing several joints on one visit is generally more efficient than separate visits, so tell us about everything that needs sealing. We will send you a clear quote for the lot.
Why book with us
- 4.9 on Google from 180+ five-star reviews
- Approved under the ARBOMaster scheme
- Full insurance on every job
- A sealant colour to suit the surroundings
Take a look at what affects the cost or what customers say.
DIY versus a professional finish
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and doesn’t move well, and the joint depth matters as much as the finish.
New homes and floors in West Norwood
Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the 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.
For new homes near West Norwood station, it’s worth checking the sealant early, while snags are still fresh.
West Norwood is about 5 miles south of London, in Greater London. From the centre of West Norwood to the outskirts, we cover new build mastic for every kind of property. West Norwood is one of 764 towns and villages in Greater London we cover.
Our applicators cover all of the SE19, SE27 and SE21 postcode area for new build mastic and the streets around it. Whether your property is on Crown Lane, Dover Road and Moore Road or a nearby road, our applicators can take on the job. You will find West Norwood on the A214 and A215, so it’s easy for us to get to with everything needed for new build mastic. If you are just outside West Norwood, we cover Norwood New Town (1 mile south), Gipsy Hill (1 mile south-east), Upper Norwood (1 mile south-east), West Dulwich (1 mile north-east) and Crystal Palace (1 mile south-east). Within a short drive, we also cover London (5 miles north), City of Westminster (7 miles north), Marylebone (7 miles north), Kensington (7 miles north-west), St Pancras (7 miles north) and Shoreditch (7 miles north).
Near you in West Norwood
We work in homes and buildings around Long Meadow, Norwood School and Hillcrest, among other places. West Norwood’s nearest station is West Norwood station, roughly 0.5 miles north-west. Nearby you’ll also find Centrale Croydon (3.5 miles south) and St Christopher's Hospice (1.6 miles east). Green spaces nearby include Dulwich Upper Wood and Battersea Park Lake.
West Norwood: your questions answered
I let a flat near West Norwood station. Can you help?
Yes. We work for letting agents and landlords as well as householders. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover West Norwood for new build mastic?
Yes, West Norwood is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear price.
Can you work from my snagging list?
Yes. Send us the sealant items on the list, with pictures if you can. We’ll tell you if anything on it isn’t a sealant job.
Will you just run a new bead over the existing one?
No. New silicone won’t bond to old silicone, so sealing over the top fails quickly. We cut the old bead out completely.
What should I tell you?
Just the basics: where it is, what you’ve noticed and how we reach it. After that, simply ring 0345 464 0079 or send us an email.
Do you use white or clear sealant?
The colour is chosen to suit the tiles, worktop or frame. Let us know your preference when you ask for a quote.
Should I try DIY first?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
Will it make a mess?
We keep the work tidy. We protect what’s around the joints.
Aftercare tips
Aftercare is simple:
- Clean sealant with mild detergent, not abrasives
- Avoid running a DIY bead over the old one
- Keep photos and emails about snagging items
- Look at the sealant regularly in the first couple of years
Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day before water reaches them.
A seal that splits early is often a sign of movement. Getting it resealed properly, and any movement checked, stops it recurring.
Nearby places to West Norwood
Other services in West Norwood
What we do, step by step
Most of a good job is in the preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it normally takes anything from a few hours to several days, depending on the number of plots. In West Norwood, 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.
- Each joint is checked for movement before work begins.
- We remove the failed sealant and clean the joints.
- We make sure the joints are dry and prime them if needed.
- 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
- Let us know about parking restrictions
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
How to get a quote
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
Advice
What affects the quote in West Norwood
There’s no set price list, because no two jobs are the same. The quote depends on:
- When we can work, for business premises
- Whether the work is at height
- The number of rooms or windows
- The type of sealant required
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, phone 0345 464 0079 or send us an email for an honest opinion and a quote.
What we need to know
The more you tell us, the more accurate the quote. When you get in contact, it helps to mention:
- What the problem is, such as mould, gaps, leaks or cracking
- Whether it’s a home or a business
- How many joints, rooms or windows are involved
- A few pictures by email, if you can
Every job is quoted individually, so start by telling us what you need. Just phone 0345 464 0079 or email us with the details, and pictures are welcome.