Greater London · England
New Build Mastic in Bexleyheath
Plot mastic for developers and snagging failed sealant in new homes in Bexleyheath, with a one-year guarantee on every job. Call for a quick quote.
- Beads laid onto grit and dust from the build
- Gaps between new skirting and floors
- Gaps opening as the house dries out and settles
Work for landlords, hotels and businesses
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can be quoted together.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we’ll quote.
How we handle new build mastic in Bexleyheath
Across Bexleyheath, we work for both new-home owners and the builders handing those homes over. Whether it’s one en suite or a run of plots, the method is the same: cut out, clean, prime where needed and reseal neatly. If you are dealing with skirting joints opening in the first winter and gaps behind new kitchen upstands, we can help, whatever the surface.
Shops, offices and commercial units across London have hard-wearing floors with movement joints that need resealing as they wear, and new homes need their plot mastic finished properly before handover.
Our work is backed for twelve months, in Bexleyheath and everywhere else we cover.
- Where
- Bexleyheath (DA7, DA6, DA16)
- Region
- Greater London
- Cover
- 12 months on all our work
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Why deal with it now?
Water getting past a failed seal in a new build reaches walls and floors that are still settling. Dealing with it early keeps the damage away from ceilings, floors and finishes. In a flat in Bexleyheath, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
We don’t show prices on the website, because the cost depends so much on the job itself. Call for a quick quote and we’ll talk you through it.
Why book with us
- Old sealant always removed completely
- Arbo and Everbuild products
- 4.9 on Google from 180+ five-star reviews
- Anti-fungal silicone where joints get wet
Take a look at how sealant jobs are priced or our reviews.
What the job involves on each surface
Show homes
In a show home, the sealant is on display. We lay neat, even beads in colours to suit the finishes.
Skirting and floors
Floors and skirting move as the house dries and the heating runs. We use a flexible product rather than caulk in a colour to suit.
How to look after the new joints
After the cure time, these simple habits help:
- Ventilate bathrooms well, especially in the first year
- Avoid running a DIY bead over the old one
- Look at the sealant regularly in the first couple of years
- Put sealant faults on your snagging list early
Leave the sealant for the cure time we give you before showering or bathing. Most silicones need around a day before water reaches them.
Report failed sealant to the builder while you’re in the snagging period. After that, putting it right may fall to you so report it promptly.
What we do, step by step
Every visit runs the same way: we check the joints, mask and protect the surrounding surfaces, do the work and clear up. It generally takes a few hours in a single home. In Bexleyheath, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- We look at why each joint failed, including any movement.
- We remove the failed sealant and clean the joints.
- We make sure the joints are dry and prime them if needed.
- New sealant goes in, with baths filled first so they’re at their heaviest.
- We check every joint and leave you with the cure times.
Getting ready for the visit
- Keep pets and children clear of the area while we work
- Let us know about earlier repairs to the joints
- For business premises, tell us about site rules or sign-in
Ask for a quote
If you are in Bexleyheath and need new build mastic, ring 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
Advice
What affects the quote in Bexleyheath
There’s no set price list. What we look at:
- Whether the work is at height
- The product the joint needs
- Mould in or behind the old joints
- When we can work, for business premises
Leaving a failed joint generally makes the job bigger, not smaller. If you are not sure whether it needs doing, ring 0345 464 0079 or email us and we’ll give you an honest view and a quote.
What to tell us for a quote
To make quoting easier, please include:
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
- The problem you’ve noticed
- Pictures of the joints, sent by email
We don’t publish a 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 email us.
Questions from Bexleyheath
I let a flat near Bexleyheath station. Can you help?
Yes, we work for letting agents and landlords. Just ring 0345 464 0079 or send us an email and tell us about the property, and we’ll give you a clear price.
Is parking an issue for new build mastic in Bexleyheath?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.
Will you leave a mess?
We keep the work tidy. Nearby surfaces are protected.
Can I add another job to the visit?
Yes, we can. More than one area can go on one quote.
Is it worth trying it myself?
It depends on the job. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional, while a short indoor joint may be within reach.
How long does new build mastic take?
Typically it takes a few hours in a single home. Bigger jobs take longer, and we’ll say how long yours will take.
Which products do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference.
Do the sealants smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
What new build mastic looks like in Bexleyheath
Much of London’s new housing is flats in larger developments, where snagging may go through the developer or managing agent. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you’ve bought a new home near Bexleyheath station, the sealant around baths, showers and frames is worth checking in the first year or two.
Bexleyheath is about 3 miles south-east of Plumstead, in Greater London. Every kind of property in Bexleyheath is covered for new build mastic. The work is guaranteed for a year. Across Greater London, we cover 764 places, Bexleyheath among them. There’s also a page for London, about 10 miles away.
Work in DA7, DA6 and DA16 works the same way as everywhere else we cover. New build mastic is available to properties on Lion Road, Hyde Road and Upton Road. We also cover Upton (1 mile west), Crook Log (1 mile west), Blendon (1 mile south-west), Bexley (1 mile south) and Welling (1 mile west). Larger places within reach include London (10 miles west), City of Westminster (13 miles west), Marylebone (13 miles west), Kensington (15 miles west), St Pancras (12 miles north-west) and Shoreditch (10 miles north-west).
Local landmarks in Bexleyheath
In Bexleyheath, that means homes and buildings near Danson Park, The Volunteer pub and Bexleyheath Academy and the streets around them. Bexleyheath has its own railway station: Bexleyheath station. Well-known places in the area include Bexley Hospital (within half a mile west) and Bexley Museum (1.2 miles south-east). Not far away are Summer Hill and Wansunt Pit.
Other services in Bexleyheath
Common problems we fix in Bexleyheath
If plaster or screed was still damp when it was sealed, the bond suffers. On a busy site, joints aren’t always given time to dry before the sealant goes on.
Look out for any of the following:
- Joints pulling apart as timber shrinks
- Beads laid onto grit and dust from the build
- Shower seals failing in the first year or two
- Internal frame sealant that has split
Bexleyheath is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Questions to ask before you book
- What happens if the job turns out different
- How much experience the applicator has
- What product goes in the joint
- The length of the guarantee