Greater London · England
New-build mastic & snagging in Millbank, Greater London
New build mastic for Millbank and the surrounding area: careful preparation, the right product and tidy work. Call for a quick quote.
- Cracked sealant around new window and door frames
- Sealant that never bonded to the surface
- Plot mastic for developers ahead of handover
The process
There’s no need to move everything out before we come, just the space around the work. We protect the rest, and the job takes a few hours for most snagging lists, longer for a run of plots in most cases. In Millbank, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- We start by going through the snagging items or plot schedule with you.
- The failed sealant is removed completely.
- Joints are vacuumed and cleaned of building dust.
- Primer goes on where the surface and product need it, then the new sealant.
- Each bead is tooled and the cure times explained.
Preparing for the visit
- Plan for the work area to be out of bounds to pets and children
- Mention any parking rules near the property
- Move anything stored near the joints
Get a quote
To get a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before any work starts.
Related advice
New build mastic in Millbank, done properly
Across Millbank, we work for both new-home owners and the builders handing those homes over. One shower or a whole phase of plots, the method doesn’t change: cut out, clean, prime where needed and reseal neatly. If you are dealing with new-build shower sealant that has already split and internal frame sealant that has split, we can help, on kitchens, show homes and skirting & floors alike.
London homes range from new-build flats to period conversions with new floors laid over old boards. Every joint between floor, skirting and threshold has to cope with some movement, in Millbank as anywhere.
A 12-month guarantee comes with the work, just as it does everywhere we cover.
- Place
- Millbank (SW1P, W1J, SW1V)
- Region
- Greater London
- Guarantee
- 12 months on all our work
- Price
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Common questions in Millbank
Can you help a landlord with a rental near London Victoria station?
Yes. We work for landlords and agents as well as householders, and several properties can go on one quote. Just call 0345 464 0079 or email us with the address and what needs doing, and we’ll send you a clear quote.
Do you cover Millbank for new build mastic?
Yes, Millbank is within the area we cover. Our work covers London and the South East. You can phone 0345 464 0079 or drop us an email and let us know what needs doing, and we will give you a clear quote.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Can you work from my snagging list?
Yes. Snagging lists are a common starting point for us. We’ll go through the sealant items and agree what we will do.
Do the sealants smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
How long does the job take?
A typical job takes a few hours in a single home. We will confirm how long when we quote.
How long before the joint can be used?
That depends on the sealant used, so please follow the time we give you.
Should I try it myself first?
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.
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Joints and finishes in Millbank 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.
Millbank is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. If you’ve bought a new home near London Victoria station, the sealant around baths, showers and frames is worth checking in the first year or two.
Millbank is about 1 mile south-east of City of Westminster, in Greater London. We provide new build mastic to homes and businesses in Millbank and the surrounding area, as part of our work across Greater London. Millbank is one of 764 towns and villages in Greater London where we work for new build mastic.
Work in SW1P, W1J and SW1V is quoted and booked the same way as anywhere else. We cover properties on Eaton Lane, Wilton Road and Castle Lane and the roads around them. Main roads around Millbank include the A4 and A202, so getting to you is simple. We also cover the places around Millbank: Westminster (1 mile north), Victoria (1 mile south-west), Pimlico (1 mile south), Vauxhall (1 mile south-east) and Lambeth (1 mile south-east). Further out, we also cover Kensington (3 miles west), Shoreditch (3 miles north-east), Walthamstow (8 miles north-east), Hoxton (3 miles north-east), Whitechapel (3 miles north-east) and Hampstead (4 miles north-west).
Landmarks near Millbank
Locally, jobs take us to homes and businesses close to Blewcoat School, St Matthew's School and London Library and the streets around them. You will also find St James's Park (under half a mile north) and Grafton Arms (within half a mile south). For rail, the closest station is London Victoria station, about 0.6 miles south-west. Well-known places in the area include Westminster Hospital (under half a mile east) and Kingly Court (0.9 miles north). For a walk, there’s St. James's Park Lake and Ludgate Hill.
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
What affects the cost of new build mastic
For a quick quote, just ask. The main things that affect it are:
- Any mould that needs treating
- The number and length of the joints
- Access and height
- Working hours on commercial sites
The cost depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
What we need to know
Photos by email are helpful but not essential. Please mention:
- Whether it’s a home or a business
- What’s wrong with the joints now
- If someone has resealed it before
- How we’d reach the joints
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will talk you through the work before giving you a price.
When something else is needed
Before you book, it’s worth knowing the limits too:
- Broken tiles or a split tray
- Cracking that points to a structural problem
- Leaking fittings rather than failed sealant
Not sure which it is? You can call 0345 464 0079 or send us an email and we will tell you honestly.
Surfaces we seal
- Windows & doors
- Skirting & floors
- Show homes
- Kitchens
- Plot handovers
- Bathrooms & en suites
Looking after it afterwards
Good habits help new joints last longer. Our tips:
- Report sealant problems to your builder during the snagging period
- Get a leaking seal dealt with straight away
- Wipe joints with warm soapy water
- Check bath and shower seals every few months as the house settles
Follow the cure time we give you before the area gets wet. Most silicones need around a day to cure enough for use.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Early resealing keeps the job small and protects the rest of the house.
Different surfaces, different methods
Plot handovers
Taking time over preparation reduces return visits. Dust from the build is removed first and primer used where needed.
Windows and doors
Draughts around new frames are often a sealant gap. We look at the joints and reseal where needed.