Greater London · England
New-build mastic & snagging in Wennington, Greater London
Plot mastic for developers and snagging failed sealant in new homes for Wennington, backed by a one-year guarantee. Call for a quick quote.
- Messy sealant that spoils new finishes
- Cracks appearing as a new home settles
- Frame joints opening as the plaster dries
New build mastic in Wennington
We never seal over a failed new-build bead. Fresh silicone cannot bond to the old layer, so the joint is cut out, cleaned, dried and resealed. If you are dealing with sealant applied over dusty or wet surfaces and cracked caulk along new skirting, 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, in Wennington and beyond.
Big or small, you get the same 12-month guarantee.
- Where
- Wennington (RM13)
- Wider area
- Greater London
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Do you need new build mastic in Wennington?
Sealant applied onto damp surfaces doesn’t bond well. On a busy site, joints aren’t always given time to dry.
The most common problems we see are:
- New-build shower sealant that has already split
- Gaps opening as the house dries out and settles
- Sealant work across a run of new homes
- Gaps behind new kitchen upstands
If you’ve bought a new home near Rainham (Essex) station, the sealant around baths, showers and frames is worth checking in the first year or two.
Questions to ask before booking
- What happens if they find a problem under the old sealant
- Who turns up on the day
- How the surfaces are prepared before sealing
- What insurance they hold
How we quote for new build mastic
You’ll get a clear quote before we start. It’s based on:
- The size of the job
- Whether the work is at height
- The number of rooms or windows
- The product the joint needs
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Ask us for a quote and we’ll explain what it covers.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- How we’d reach the joints
- Where the property is
- How many joints, rooms or windows are involved
- The type of property
To get a quote, ring 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear price before any work starts.
When something else is needed
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- A tray or bath that is not properly supported, until it’s fixed
- Deciding who is responsible under a builder’s warranty
- Leaking fittings rather than failed sealant
Not sure which it is? You can ring 0345 464 0079 or send us an email and we will tell you honestly.
Where we work in Wennington
- Skirting & floors
- Plot handovers
- Bathrooms & en suites
- Kitchens
- Show homes
- Windows & doors
Nearby places to Wennington
Other services in Wennington
Joints and finishes in Wennington homes
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, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
As a London address, Wennington can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.
Wennington is about 4 miles south of Hornchurch, in Greater London. We carry out new build mastic for homes and businesses in Wennington and the surrounding area, as part of our work across Greater London. Wennington is one of 764 towns and villages in Greater London we cover for new build mastic. There’s also a page for London, roughly 14 miles from Wennington.
Every address in RM13 is within our area for new build mastic, from the main roads to the quietest streets. Nearby, we also carry out new build mastic in Aveley (1 mile east), Hacton (2 miles north), South Ockendon (3 miles east), Upminster Bridge (4 miles north) and Hornchurch (4 miles north). Larger places within reach include London (14 miles west), St Pancras (15 miles west), Shoreditch (13 miles west), Walthamstow (12 miles north-west), Hoxton (13 miles west) and Whitechapel (12 miles west).
What’s near Wennington
We work in homes and buildings around Lennard Arms Inn, Wildspace Conservation Park and Harris Academy Rainham and the streets around them. The nearest railway station is Rainham (Essex) station, roughly 1.4 miles north-west of the centre. A little further out are St George's Hospital (2.8 miles north) and Erith Museum (2.5 miles south-west). Open spaces near Wennington include Rainham Marshes Nature Reserve.
The process
When we arrive, we look over the joints with you first. Surfaces next to the work are protected before any work begins. Most jobs take anything from a few hours to several days, depending on the number of plots. In Wennington, 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.
- 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.
- We check every joint and leave you with the cure times.
Before we arrive
- Tell us if parking is tricky
- Let us know if you’ve seen damp or leaks
- Mention if the joints have been sealed before
How to get a quote
Asking for a quote is easy: let us know the job and the location and its rough size. Photos by email help us understand the job.
Advice
Keeping the joints in good condition
To keep the joints looking good and working properly:
- Act quickly if a seal starts to leak
- Wipe joints with warm soapy water
- Look at the sealant regularly in the first couple of years
- Wait for the cure time before using a resealed shower
Keep the bathroom ventilated, especially in the first year. Use the extractor fan or open a window after showers.
Do not let the snagging period run out with sealant problems unreported. Once it ends, the repair may be down to you so report it promptly.
Wennington questions
I let a flat near Rainham (Essex) station. Can you help?
Yes. We work for landlords and letting agents 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 Wennington for new build mastic?
Yes, Wennington is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing, and we will give you a clear price.
Do you guarantee your work?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we’ll put it right.
Do I have to be there?
If the work is inside, we need someone to let us in. Once we’ve agreed the job, you don’t need to watch us work.
Can I add another job to the visit?
Yes. Just list everything you need.
How long does new build mastic take?
Typically it takes a few hours in a single home. Larger jobs naturally take longer.
Do you hold any approvals?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Why deal with it now?
Resealing everything on a snagging list in one visit is normally simpler than chasing joints one at a time. It’s one visit, one quote and one set of cure times to plan around. Converted houses in London often have a bathroom above someone else’s living room, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler for homes in Wennington.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You’ll know the price before we begin.
Why choose Mr Mastic in Wennington
- A sealant colour to suit the surroundings
- We are fully insured
- ARBOMaster approved applicator
- Every job guaranteed for a year
Read how sealant jobs are priced and customer reviews.
Work for landlords, hotels and businesses
If you manage several properties in or around Wennington, jobs at different addresses can go on one quote. Send us the addresses and the work at each, and photos by email help.
We work for landlords and letting agents as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.