Greater London · England
New Build Mastic in North Greenwich
New build mastic across North Greenwich and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Gaps behind new kitchen upstands
- Gaps opening as the house dries out and settles
- Sealant that never bonded to the surface
New build mastic in North Greenwich, done properly
For builders and developers, we work through plots to the schedule you give us. We seal bathrooms, kitchens, windows, doors and skirting so plots are ready to hand over with a sealant suited to each area. We work on bathrooms & en suites, kitchens and windows & doors, and the jobs we see most are untidy sealant flagged on a snagging list and new-build shower sealant that has already split.
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 North Greenwich as anywhere.
All our work comes with a one-year guarantee.
- Place
- North Greenwich (E14, SE8, SE10)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Different surfaces, different methods
Plot handovers
Developers can send the plot schedule and specification for a quote. We seal bathrooms, kitchens, frames and floors as agreed.
Bathrooms and en suites
New-build bathrooms and en suites are where sealant fails most often. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.
Work for landlords, hotels and businesses
Landlords and agents in North Greenwich can book us as well as householders. Resealing between tenancies keeps a property looking cared for.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.
When it is not the sealant
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- Cracked trays, tiles or worktops
- Movement caused by a poorly fitted tray or bath
- Settlement cracks that need a surveyor
If in doubt, ring 0345 464 0079 or email us and we will say what we think.
What we seal
- Skirting & floors
- Kitchens
- Windows & doors
- Plot handovers
- Bathrooms & en suites
- Show homes
When to call us in North Greenwich
The wrong product is sometimes used in the wrong place: caulk where water collects, or a rigid product on a moving joint. Neither lasts long.
Most people get in touch after spotting one of these:
- Joints pulling apart as timber shrinks
- Gaps behind new kitchen upstands
- Internal frame sealant that has split
- Sealant that never bonded to the surface
If you’ve bought a new home near Greenwich station, the sealant around baths, showers and frames is worth checking in the first year or two.
Before you book anyone
- Which sealant they’ll use, and why
- How hidden problems are handled
- Whether they’re fully insured
- How the colour is chosen
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
Places near North Greenwich
More services for North Greenwich
How it works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes a few hours in a single home. In North Greenwich, as in most of London, parking needs a little planning. A visitor permit or a nearby bay makes the visit run more smoothly.
- Each joint is checked for movement before any work starts.
- Old sealant is cut out and the joints cleaned.
- 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.
How to prepare
- Tell us if parking is tricky
- For indoor joints, keep the area dry beforehand if you can
- Let us know if you’ve seen damp or leaks
Get a quote
We do not publish a price list. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or drop us an email.
Related advice
Leave it or put it right?
Running a new bead over the builder’s sealant might look tidy for a few weeks, but it can’t bond to what’s underneath. Taking it all out and starting again is the only way to get a lasting seal. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Every job is a little different, so each one gets its own quote. Size, access and the product the joint needs all play a part, and we’ll explain the quote if you ask.
What you get with us
- A sealant colour to suit the surroundings
- Quality sealants from Arbo and Everbuild
- Fully insured
- White, clear, grey or coloured to suit, where the product allows
Take a look at how sealant jobs are priced and our reviews.
New build mastic in North Greenwich: local notes
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. Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the managing agent.
As a London address, North Greenwich can be tricky for parking: let us know about parking bays, permits or a driveway.
North Greenwich is about 1 mile north-west of Greenwich, in Greater London. Whether you’re in the middle of North Greenwich or further out, we cover new build mastic for every kind of property. Our area takes in 764 places across Greater London.
We cover every part of E14, SE8 and SE10 for new build mastic and the streets around it. We cover properties on Creek Road, Wynan Road and Undine Road and the roads around them. Nearby, we also carry out new build mastic in Isle of Dogs (1 mile south-east), Millwall (1 mile west), Cubitt Town (1 mile north-east), Deptford (1 mile south-west) and Greenwich (1 mile south-east). We also work in nearby towns such as London (3 miles west), City of Westminster (6 miles west), Marylebone (6 miles west), Kensington (8 miles west), St Pancras (5 miles north-west) and Shoreditch (4 miles north-west).
Local landmarks in North Greenwich
We work in homes and buildings around Laban Centre, Canary Wharf College 3 and St. Paul's. Also close by are Mudchute Park and Farm (under half a mile north-east) and The Ferry House Public House (less than half a mile south-east). The closest station to North Greenwich is Greenwich station, about 0.8 miles south. A little further out are Old Royal Naval College (0.7 miles south-east) and Greenwich Castle (1.1 miles south-east). Not far away are Sue Godfrey Nature Park and Tower Hill.
North Greenwich questions
Do you work for landlords with property near Greenwich station?
Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or send us an email 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 North Greenwich?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. The visit is then planned around what’s available.
Do you have insurance?
Yes, we’re fully insured.
What colour sealant will you use?
It depends on the joint: white or clear in most bathrooms, and a colour to suit worktops, frames and floors elsewhere. We’ll agree it with you first.
My new home is still under warranty. Should I contact you?
Start with the builder if you’re in the snagging or warranty period. Once that is done, or if they won’t put it right, we’ll cut it out and reseal it.
Can I add another job to the visit?
Yes, and it often makes sense. Doing several areas at once is usually more efficient.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access, and for outside work we will agree access with you when we book.