Greater London · England
New Build Mastic in Stepney
New build mastic across Stepney and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Sealant work across a run of new homes
- Cracked caulk along new skirting
- Cracked sealant around new window and door frames
New build mastic in Stepney, done properly
Snagging sealant properly means taking the failed bead out completely. New silicone will not bond to old silicone, so the joint is cut out, cleaned, dried and resealed. If you have messy sealant that spoils new finishes and gaps between new skirting and floors, we can help, whatever the surface.
Much of London’s new housing is flats in larger developments. In a new development, snags are often reported through the developer or the managing agent, and failed shower seals, open skirting joints and gaps at thresholds are typical.
You’re covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or email us.
- Where
- Stepney (E1, E2)
- Region
- Greater London
- Cover
- One year on every job
- Price
- A clear price before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Should I try it myself first?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Your questions about new build mastic in Stepney
Is parking an issue for new build mastic in Stepney?
London parking needs a little planning, so let us know about permits, bays or a driveway when you book. That way the visit can be planned around it.
Can you help a landlord with a rental near Whitechapel station?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Can you do plot mastic on a new development?
Yes. We work through plots to your schedule ready for handover. Tell us the plots and the joints involved for a clear quote.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done and we will quote it together.
Will it make a mess?
We keep the work tidy. Nearby surfaces are protected, and the area is left clean when we finish.
Can you work on commercial sites?
Yes. We’ve worked for hotels, offices and other businesses.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
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.
How the job changes by surface
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.
Show homes
Tired or marked sealant in a show home can be renewed. The old bead comes out and a clean new one goes in.
How we quote for new build mastic
The quote reflects the job in front of us. We look at:
- How much old sealant there is and how hard it is to remove
- Any mould that needs treating
- How easy the joints are to reach
- The number and length of the joints
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, along with when we can work on site. Call for a quick quote and we will explain what it covers.
What to tell us for a quote
To help us quote quickly, please include:
- Pictures of the joints, sent by email
- What the problem is, such as mould, gaps, leaks or cracking
- The type of property
- How we’d reach the joints
Need a quote? Please ring 0345 464 0079 or email us and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
What happens on the day
We bring everything the job needs with us. After a quick look at the joints together, the area is protected and the work begins. It normally takes a few hours in a single home. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Stepney. A visitor permit or a nearby bay makes the visit run more smoothly.
- We start by agreeing which joints are on the list, from the snagging sheet or plot schedule.
- The old bead comes out in full, with no layer left behind.
- Surfaces are cleaned of building dust and primed where needed.
- New sealant suited to each joint is applied and tooled neatly.
- Finally, each room is checked and you’re given the cure time.
Before we arrive
- Try not to wet indoor joints just before the visit
- Tell us about any water getting in
- Mention any parking rules near the property
Ask for a quote
Every job is quoted individually, so start by telling us what you need. Just ring 0345 464 0079 or email us with the details.
Advice
Work for landlords, hotels and businesses
We also work for property managers and facilities teams. Several sites can be quoted together, and we are fully insured for the work.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements.
Joints and finishes in Stepney homes
Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the managing agent. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
If you’ve bought a new home near Whitechapel station, the sealant around baths, showers and frames is worth checking in the first year or two.
Stepney is about 2 miles south of Hackney, in Greater London. For new build mastic in and around Stepney, please phone 0345 464 0079 or send us an email for a quick quote. We cover Greater London from our Crawley base. We cover 764 towns and villages across Greater London, from the larger towns to small villages.
Every address in E1 and E2 is within our area for new build mastic, from the main roads to the quietest streets. That includes homes and businesses on Beaumont Square, Rectory Square and Carlton Square and the roads around them. You’ll find Stepney on the A11 and B120, so it’s easy for us to get to with everything needed for new build mastic. Nearby, we also carry out new build mastic in East End of London (1 mile south-west), Ratcliff (1 mile south), Bethnal Green (1 mile north-west), Whitechapel (1 mile west) and Limehouse (1 mile east). We also work in nearby towns such as City of Westminster (4 miles west), Marylebone (4 miles west), Kensington (7 miles west), St Pancras (3 miles west), Walthamstow (5 miles north) and Hampstead (6 miles west).
Around Stepney
Locally, jobs take us to homes and businesses close to Stepney Green Mathematics and Computing College, Stepney Jewish School and Bishopsgate Institute Special Collections and Archives. You’ll also find Stepney Green Park (within half a mile south-east) and Black Horse Public House (under half a mile north-east). There’s a railway station in Stepney itself: Whitechapel station. Well-known places in the area include Tower of London (1.4 miles south-west) and Young V&A (0.6 miles north). The countryside around Stepney includes St. James's Park Lake and Lavender Pond.
Nearby places to Stepney
What else we do in Stepney
Signs you need new build mastic in Stepney
Baths and trays settle under load once the home is lived in. If a bath wasn’t filled when it was sealed, the bead is stretched the first time it’s used.
Signs it’s time to call us include:
- Plot mastic for developers ahead of handover
- Sealant that never bonded to the surface
- Untidy sealant flagged on a snagging list
- Gaps between new skirting and floors
Stepney is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
What your quote should include
- What preparation is included
- What the cure time is
- How much experience the applicator has
- The length of the guarantee
Aftercare tips
Looking after new joints is easy, and it makes a real difference:
- Clean sealant with mild detergent, not abrasives
- Put sealant faults on your snagging list early
- Use the extractor fan every time you shower
- Watch for new gaps as the house dries out
Clean the sealant with a mild detergent and a soft cloth. Keep scourers and harsh chemicals off it as they wear the bead.
Mould takes hold quickly in sealant that has gaps or lifted edges. Resealing before mould gets in saves a harder job later.