Greater London · England
New Build Mastic in Victoria
Plot mastic for developers and snagging failed sealant in new homes for householders, landlords and businesses in Victoria. Fully insured, ARBOMaster approved and guaranteed for a year.
- Sealant work across a run of new homes
- Messy sealant that spoils new finishes
- Gaps between new skirting and floors
What the job involves on each surface
Bathrooms and en suites
New-build bathrooms and en suites are where sealant fails most often. We cut out the failed bead, clean and prime, and reseal with anti-fungal sanitary silicone.
Kitchens
Beside the sink, the joint takes water every day. We use a sealant suited to kitchens suited to the job.
New build mastic in Victoria
Some new-home owners let the house settle before resealing. For small cosmetic gaps, that’s reasonable, but a failed shower or bath seal shouldn’t wait. If you are dealing with messy sealant that spoils new finishes and cracks appearing as a new home settles, we can help.
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.
Each job carries a 12-month guarantee, whatever its size.
- Place
- Victoria (SW1V, SW1P, SW1X)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Also near Victoria
What else we do in Victoria
The process
There isn’t much for you to do on the day. Show us the job and we’ll take it from there. The work itself takes a few hours in a single home, including the tidy-up. For a job in Victoria, parking and access are the things to plan: tell us about permits, visitor bays or off-street space, which floor we are working on and whether there’s a lift.
- 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.
- We clean off dust from the build and prime the surfaces where the product needs it.
- New sealant suited to each joint is applied and tooled neatly.
- Finally, each room is checked and you are given the cure time.
How to prepare
- Try not to wet indoor joints just before the visit
- Keep pets and children clear of the area while we work
- Tell us about any previous sealing or DIY attempts
Get a quote
For new build mastic in Victoria, ring 0345 464 0079 or email us. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Advice
How to look after the new joints
So the new joints stay in good condition:
- Record problems with dated pictures
- Check bath and shower seals every few months as the house settles
- Wipe joints with warm soapy water
- Follow the cure time we give you
Keep an eye on the joints over the first couple of years. Small gaps can appear as the house dries.
Report failed sealant to the builder while you’re in the snagging period. Once it ends, the repair may be down to you.
Should I try it myself first?
If you are set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it doesn’t work out, we can still put it right.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
When to call us in Victoria
When the heating goes on in the first winter, the house dries fast. Gaps open along skirting, frames and worktops and cracks appear in the sealant.
These are the problems we are asked about most:
- Cracked sealant around new window and door frames
- Sealant work across a run of new homes
- Beads laid onto grit and dust from the build
- Joints pulling apart as timber shrinks
Victoria is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Questions to ask before booking
- What happens if they find a problem under the old sealant
- How much experience the applicator has
- Are they insured?
- Whether the sealant suits the joint
What affects the cost of new build mastic
We don’t publish a price list. What we look at:
- Working hours on commercial sites
- The old material and how stubborn it is
- Whether the work is at height
- The size of the job
Doing several joints on one visit is usually more efficient than separate visits, so tell us about everything that needs sealing. You’ll get one clear quote for the whole job.
Asking for a quote
Photos by email are helpful but not essential. Please mention:
- Access, such as stairs, a lift or height
- If it’s domestic, commercial or a hotel
- Any previous sealing or DIY work
- A few photos by email, if you can
For a quote, phone 0345 464 0079 or drop us an email and tell us where the job is and what the problem looks like. You’ll have a clear quote before any work starts.
New build mastic around Victoria
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent.
For new homes near London Victoria station, it’s worth checking the sealant early, while snags are still fresh.
Victoria is about 1 mile south of City of Westminster, in Greater London. If you need new build mastic in Victoria, it’s easy to get a quote: please call 0345 464 0079 or send us an email. We’re based in Crawley and cover Greater London. Across Greater London, we cover 764 places, and Victoria is one of them.
Here we cover the SW1V, SW1P and SW1X postcode area for new build mastic. Streets in the area include Eaton Lane, Gerald Road and Wilton Road, and we cover them all. Being close to the A202 and A302, Victoria is easy for our applicators to reach for new build mastic. Other places close to Victoria include Belgravia (1 mile north-west), Pimlico (1 mile south-east), Westminster (1 mile north-east), Millbank (1 mile north-east) and Brompton (1 mile west). Within a short drive, we also cover Shoreditch (4 miles north-east), Walthamstow (8 miles north-east), Hoxton (4 miles north-east), Whitechapel (4 miles north-east), Hampstead (4 miles north) and Ruislip (13 miles north-west).
Landmarks near Victoria
We work in homes and buildings around Westminster Cathedral Choir School, Wetherspoons pub and Green Park. Nearby too are Westminster City School (under half a mile north-east) and London Library (0.9 miles north). Victoria has its own railway station: London Victoria station. Well-known places in the area include Baynard's Castle (2.2 miles north-east) and Harrods (0.9 miles west). Open spaces near Victoria include Ludgate Hill and St. James's Park Lake.
Questions from Victoria
Can you do new build mastic in Victoria?
Yes, Victoria is within the area we cover. Our work covers London and the South East. Just phone 0345 464 0079 or email us with a few details of the job.
Can parking be tricky for a visit in Victoria?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
What should I tell you?
A short description and the location. We will ask anything else we need to know.
Are you fully insured?
Yes. Mr Mastic is fully insured.
Is the work guaranteed?
Yes. All our work carries our 12-month guarantee.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we will explain our choice.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We’ll give you the cure time for the product we used before we leave.
Honest limits
To be straight with you, there are a few things sealant won’t fix:
- Leaking fittings rather than failed sealant
- Cracking that points to a structural problem
- Baths and trays that move too much for sealant to cope with
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before you book.
What we seal
- Plot handovers
- Kitchens
- Show homes
- Bathrooms & en suites
- Windows & doors
- Skirting & floors