Greater London · England
Heron Quays New Build Mastic
Plot mastic for developers and snagging failed sealant in new homes for Heron Quays, backed by a one-year guarantee. Ask us for a quote.
- Gaps opening as the house dries out and settles
- Messy sealant that spoils new finishes
- Leaking shower tray seals in a new home
How we handle new build mastic in Heron Quays
Our new-build work comes in two parts: plot mastic for developers, and putting right failed sealant for people who’ve bought a new home. Both get the same care over preparation, because that is what rushed new-build sealant normally lacks. We work on show homes, kitchens and plot handovers, and the jobs we see most are plot mastic for developers ahead of handover and leaking shower tray seals in a new home.
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 Heron Quays as anywhere.
You are covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or drop us an email.
- Place
- Heron Quays (E14, SE16, E22)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
New build mastic around Heron Quays
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.
If you’ve bought a new home near Canary Wharf station, the sealant around baths, showers and frames is worth checking in the first year or two. Heron Quays is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Heron Quays is about 2 miles north-west of Greenwich, in Greater London. Every kind of property in Heron Quays is covered for new build mastic. The work is guaranteed for a year. We cover 764 towns and villages across Greater London, large and small.
All of E14, SE16 and E22 is covered for new build mastic, from the main roads to the quietest streets. You will find streets such as Tiller Road, Castor Lane and Cassilis Road. Heron Quays is on the A1261, which makes it straightforward to reach. If you are just outside Heron Quays, we cover Canary Wharf (1 mile north-east), London Docklands (1 mile north-east), Poplar (1 mile north-east), Coldharbour (1 mile east) and Blackwall (1 mile east). Further out, we also cover London (3 miles west), City of Westminster (6 miles west), Marylebone (5 miles west), Kensington (8 miles west), St Pancras (4 miles west) and Shoreditch (3 miles north-west).
Landmarks near Heron Quays
We work in homes and buildings around Tower Hamlets College, Sir John McDougall Gardens and Canary Wharf College 3. Heron Quays has its own railway station: Canary Wharf station. Nearby you will also find The Pumphouse Educational Museum (0.7 miles west) and Surrey Quays Shopping Centre (1.2 miles south-west). For a walk, there’s Tower Hill and St. James's Park Lake.
Surface by surface
Show homes
Tired or marked sealant in a show home can be renewed. We cut it out and reseal neatly.
Skirting and floors
As timber and screed dry, skirting and floors shift. We use a flexible product rather than caulk painted or coloured to suit.
Aftercare tips
No joint lasts for ever, but care makes a real difference. Our tips:
- Follow the cure time we give you
- Avoid running a DIY bead over the old one
- Open a window or run the fan after bathing
- Wipe joints with warm soapy water
Ventilation matters in a new home, which is still drying out. Run the fan or open a window after bathing.
A seal that splits early is often a sign of movement. Have it resealed, and the tray or bath checked, before it gets worse.
What we cannot put right
Before booking, it’s worth knowing the limits too:
- Deciding who is responsible under a builder’s warranty
- Baths and trays that move too much for sealant to cope with
- Plumbing faults behind the sealant
If in doubt, call 0345 464 0079 or send us an email and we will say what we think.
Where we work in Heron Quays
- Show homes
- Windows & doors
- Plot handovers
- Kitchens
- Bathrooms & en suites
- Skirting & floors
What affects the quote in Heron Quays
There’s no set price list, because no two jobs are the same. What we look at:
- The old material and how stubborn it is
- Whether the work is at height
- The number and length of the joints
- How many areas need sealing
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Helping us quote
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- Where the property is
- Roughly how big the job is
- What’s wrong with the joints now
- Whether it has been sealed before
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we will explain how we’d tackle it. When it suits you, ring 0345 464 0079 or send us an email.
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.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together, and we are fully insured for the work.
Heron Quays questions
Is parking a problem for a job in Heron Quays?
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.
Do you work for landlords with property near Canary Wharf station?
Yes. We work for landlords and letting agents as well as householders, and several properties can be quoted together. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Can I do it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
How do I get a quote for new build mastic in Heron Quays?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before we start.
What sealant 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, and we will tell you what we are using.
Can you match the sealant colour to my new kitchen or bathroom?
It depends on the joint: white or clear in most bathrooms, and a colour to suit worktops, frames and floors elsewhere. We agree the colour before any work starts.
Where are you based?
Our base is in Crawley, and we work across South East England, London and Scotland.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
DIY versus a professional finish
A DIY attempt doesn’t rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Also near Heron Quays
Also in Heron Quays
The process
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes anything from a few hours to several days, depending on the number of plots. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Heron Quays. A visitor permit or a nearby bay makes the visit run more smoothly.
- We look at why each joint failed, including any movement.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
How to prepare
- Mention any leaks or damp you’ve noticed
- Keep pets and children clear of the area while we work
- On commercial sites, let us know about site rules
How to get a quote
Asking for a quote is easy: let us know what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand, and we will take it from there.