Greater London · England
New-build mastic & snagging in Upper Norwood, Greater London
New build mastic for Upper Norwood, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- New-build shower sealant that has already split
- Sealant applied over dusty or wet surfaces
- Kitchen sealant that has pulled off the wall
When something else is needed
In fairness, there are a few things sealant will not fix:
- Structural cracks in walls or ceilings
- Plumbing faults behind the sealant
- Baths and trays that move too much for sealant to cope with
If you’re not sure, just ring 0345 464 0079 or send us an email and we’ll give you a straight answer.
Joints and surfaces we work on
- Windows & doors
- Plot handovers
- Show homes
- Bathrooms & en suites
- Kitchens
- Skirting & floors
New build mastic in Upper Norwood
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. If you are still within the builder’s snagging or warranty period, tell them first, and if it is not put right, get in touch with us. We work on plot handovers, show homes and skirting & floors, and people most often call us about frame joints opening as the plaster dries and skirting joints opening in the first winter.
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.
There’s a 12-month guarantee on every job, large or small.
- Location
- Upper Norwood (SE19, SE27, SE21)
- Region
- Greater London
- Cover
- A year, on every job
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a one-year guarantee.
If you manage several properties in or around Upper Norwood, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs.
How the visit works
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours for most snagging lists, longer for a run of plots. In a London area like Upper Norwood, the main things to plan are parking and access: tell us about permits, visitor bays or off-street space, which floor we’re working on and whether there’s a lift.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely down to clean surfaces.
- 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.
Getting ready for the visit
- Mention if the joints have been sealed before
- Let us know about parking restrictions
- Keep pets and children clear of the area while we work
Ask for a quote
There’s no standard price list, because every job is different. Instead, we send you a clear quote for your job. To arrange one, phone 0345 464 0079 or drop us an email.
Related advice
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. Dealing with it early keeps the damage away from ceilings, floors and finishes. Damp from a failed joint spreads quietly in older London brickwork and timber, and by the time it shows on a wall or ceiling in Upper Norwood, the repair is bigger than the sealant job would have been.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you are not sure whether it needs doing, phone 0345 464 0079 or drop us an email for an honest opinion and a quote.
Why book with us
- Fully insured
- Anti-fungal silicone where joints get wet
- White, clear, grey or another colour, product permitting
- Any old sealant cut out fully, not covered over
Read what affects the cost or customer reviews.
What new build mastic looks like in Upper Norwood
Much of London’s new housing is flats in larger developments, where snagging may go through the developer or managing agent. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For new homes near Gipsy Hill station, it’s worth checking the sealant early, while snags are still fresh.
Upper Norwood is about 4 miles south-east of Stockwell, in Greater London. Across the SE19 area, our applicators can take on new build mastic. We cover 764 towns and villages across Greater London, from the larger towns to small villages. For nearby work, see our London page (6 miles or so).
Work in SE19, SE27 and SE21 works the same way as everywhere else we cover. If you need new build mastic at a property on Dover Road, Hawke Road and Tudor Road or anywhere close by, we can help. You will find Upper Norwood on the A214, so it’s easy for us to get to with everything needed for new build mastic. Nearby, we also carry out new build mastic in Norwood New Town (1 mile west), Gipsy Hill (1 mile north-east), West Norwood (1 mile north-west), Crystal Palace (1 mile east) and Anerley (1 mile east). Within a short drive, we also cover London (6 miles north), City of Westminster (7 miles north-west), Marylebone (7 miles north), Kensington (7 miles north-west), St Pancras (7 miles north) and Shoreditch (7 miles north).
Around Upper Norwood
We work in homes and buildings around The Sparrowhawk pub, Long Meadow and Rockmount Primary School. Upper Norwood has its own railway station: Gipsy Hill station. Other landmarks nearby include St Christopher's Hospice (1.3 miles east) and Crystal Palace Museum (0.5 miles east). The countryside around Upper Norwood includes Dulwich Upper Wood and Knight's Hill.
Do you need new build mastic in Upper Norwood?
Later trades and the final clean can damage fresh sealant. A bead disturbed before it has cured may never seal properly.
These are the problems we’re asked about most:
- Beads laid onto grit and dust from the build
- Worktop and upstand sealant coming away
- Cracked caulk along new skirting
- Second-fix sealing on new plots
Upper Norwood is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
What to look for in a quote
- What happens if the job turns out different
- Whether VAT is included
- What guarantee comes with the work
- Is the old sealant removed completely?
Also near Upper Norwood
More services for Upper Norwood
What affects the quote in Upper Norwood
The price is agreed before any work begins. It’s based on:
- Working hours on commercial sites
- The number and length of the joints
- How many rooms, windows or areas are involved
- Whether old sealant or filler has to be cut out
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
Asking for a quote
To help us quote quickly, please include:
- Pictures of the joints, sent by email
- The rough size of the job
- If it’s domestic, commercial or a hotel
- If someone has resealed it before
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, call 0345 464 0079 or send us an email.
Surface by surface
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We cut out the cracked bead and reseal with a flexible sealant in a matching colour.
Bathrooms and en suites
Shower trays in new homes often move slightly in the first year. We reseal once the old bead is fully out with baths filled first.
Common questions in Upper Norwood
Do you work for landlords with property near Gipsy Hill station?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we’ll send you a clear quote.
Is Upper Norwood in your area for new build mastic?
Yes. Our work covers London and the South East, and Upper Norwood is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing.
Do you hold any approvals?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Which products do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We explain the product when we quote.
Who should fix failed sealant in a new build?
If you are still within the builder’s snagging or warranty period, report it to them first. If they’re slow or the fix does not last, we can help.
Where do you work from?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all.