Greater London · England
Surrey Canal New Build Mastic
New-build sealant joints in Surrey Canal need attention? We cut out the old, prepare the joints and apply the right sealant, with a 12-month guarantee.
- Plot mastic for developers ahead of handover
- Sealant applied over dusty or wet surfaces
- Gaps behind new kitchen upstands
Common questions in Surrey Canal
Can you do new build mastic in Surrey Canal?
Yes, Surrey Canal is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or email us with a few details of the job.
Is parking a problem for a job in Surrey Canal?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
When is the sealant fully cured?
Many sealants skin over quickly but take longer to cure fully. We’ll tell you how long to leave the joint before we leave.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
Can you match the sealant colour to my new kitchen or bathroom?
White and clear are the most common, but other colours are available. We match the colour to the finish.
How long does the job take?
As a guide, most jobs take anything from a few hours to several days, depending on the number of plots. Bigger jobs take longer, and we’ll say how long yours will take.
Do you hold any approvals?
Yes. We are ARBOMaster approved, the scheme for applicators of Arbo sealants.
Do you take on second-fix sealing for builders?
Yes. We take on second-fix sealant work across new plots. Good preparation keeps snagging to a minimum.
New build mastic for homes and businesses in Surrey Canal
We never seal over a failed new-build bead. New silicone will not bond to old silicone, so it all comes out before we clean, dry and reseal. We work on kitchens, plot handovers and skirting & floors, and common reasons people get in touch are sealant that never bonded to the surface and cracks appearing as a new home settles.
London homes range from new-build flats to period conversions with new floors laid over old boards. Wherever a floor meets a wall, a skirting or a threshold, the joint has to allow for movement, in Surrey Canal as anywhere.
We guarantee the work for a year. If something is not right with it in that time, tell us and we will put it right.
- Location
- Surrey Canal (SE16, SE15, SE14)
- Wider area
- Greater London
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Do you need new build mastic in Surrey Canal?
When the heating goes on in the first winter, the house dries fast. Skirting, frames and worktops pull away slightly.
Signs it’s time to call us include:
- Untidy sealant flagged on a snagging list
- Gaps behind new kitchen upstands
- Leaking shower tray seals in a new home
- Cracks appearing as a new home settles
Surrey Canal is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Questions to ask before you book
- Whether VAT is included
- How long to leave it before use
- What insurance they hold
- How hidden problems are handled
Quotes for new build mastic in Surrey Canal
Every job gets its own quote. This is what makes a difference:
- How much there is to do
- When we can work, for business premises
- Whether there’s mould to deal with
- Which sealant suits the joint
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- The address or postcode of the job
- Pictures of the joints, sent by email
- Any previous sealing or DIY work
- The problem you’ve noticed
For a quote, call 0345 464 0079 or email us with the location and a short description of the problem. We’ll give you a clear quote before any work starts.
Work for landlords, hotels and businesses
For anyone letting property in or around Surrey Canal, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
From a single let to a portfolio, you get the same standard of work: old sealant fully removed, joints prepared properly and a 12-month guarantee.
What we cannot put right
We will not take on work that will not last, so these are the limits:
- Plumbing faults behind the sealant
- Cracked trays, tiles or worktops
- Your warranty claim itself, which is between you and the builder
If in doubt, call 0345 464 0079 or send us an email and we will say what we think.
Where we work in Surrey Canal
- Skirting & floors
- Plot handovers
- Windows & doors
- Bathrooms & en suites
- Kitchens
- Show homes
What happens on the day
The work is kept neat and contained to the area we are working on, so you can carry on as normal. Expect the work to take anything from a few hours to several days, depending on the number of plots, and we tell you how long to leave it before we go. Many London jobs are in flats, so we come ready for stairs, narrow hallways and shared entrances. If the building has a concierge, managing agent or access rules, tell us when you book.
- First, the list of joints is agreed from your snagging sheet or plot schedule.
- The failed sealant is removed completely down to clean surfaces.
- We clean out the dust and grit left from the build.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Let us know about earlier repairs to the joints
- Mention any leaks or damp you’ve noticed
Ask for a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Read more
Should I try it myself first?
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
What new build mastic looks like in Surrey Canal
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. Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent.
If you’ve bought a new home near South Bermondsey station, the sealant around baths, showers and frames is worth checking in the first year or two.
Surrey Canal is about 1 mile north-west of New Cross, in Greater London. Homes, rented property, offices and hotels in Surrey Canal is covered for new build mastic, old or new, large or small. Every job comes with our one-year guarantee. 764 places in Greater London are on our list, large and small.
Every address in SE16, SE15 and SE14 is covered for new build mastic. Whether your property is on Pump Lane, Bush Road and Water Lane or anywhere close by, we can help. You’ll find Surrey Canal on the A200 and A2208, so it’s easy for us to get to. Neighbouring places we cover for new build mastic include South Bermondsey (1 mile west), Surrey Quays (1 mile north-east), Rotherhithe (1 mile north), Peckham (1 mile south-west) and Deptford (1 mile south-east). Larger places within reach include City of Westminster (5 miles north-west), Marylebone (5 miles north-west), Kensington (7 miles west), St Pancras (4 miles north-west), Shoreditch (3 miles north-west) and Walthamstow (7 miles north).
Landmarks near Surrey Canal
Around Surrey Canal, our work takes us to homes and buildings near City of London Academy, Deptford Park and The Surrey Docks pub, among other places. There’s a railway station in Surrey Canal itself: South Bermondsey station. Well-known places in the area include New Cross Hospital (0.5 miles south) and Surrey Quays Shopping Centre (0.7 miles north). Not far away are New Cross Gate Cutting and Tower Hill.
Places near Surrey Canal
More services for Surrey Canal
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Get a leaking seal dealt with straight away
- Wait for the cure time before using a resealed shower
- Clean sealant with mild detergent, not abrasives
- Watch for new gaps as the house dries out
Follow the cure time we give you before the area gets wet. Silicone is usually left for about a day.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black saves a harder job later.