Greater London · England
New Build Mastic in Maida Vale
Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Maida Vale and across Greater London. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Joints pulling apart as timber shrinks
- Sealant applied over dusty or wet surfaces
- Worktop and upstand sealant coming away
How we handle new build mastic in Maida Vale
New homes move as they dry out. Timber dries and shrinks, and baths and trays settle, and sealant applied in a hurry at handover can split. If you’re dealing with beads laid onto grit and dust from the build and kitchen sealant that has pulled off the wall, we can put it right, on kitchens, plot handovers and windows & doors alike.
New flats are going up across London, many of them in larger developments. Snagging there often goes through the developer or managing agent, and shower seals that fail early, skirting joints that open up and gaps at thresholds are all common snags.
There’s a 12-month guarantee on every job.
- Location
- Maida Vale (W9, NW8, NW6)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
How the visit works
Before we leave, we go over the finished joints with you and explain the cure time. The visit itself generally takes a few hours for most snagging lists, longer for a run of plots, depending on how much there is to do. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Maida Vale. 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.
- 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.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Mention any tricky access
- Mention any parking rules near the property
Get a quote
To get a quote, ring 0345 464 0079 or drop us an email with the location and a short description of the problem. You will have a clear quote before work begins.
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Joints and finishes in Maida Vale homes
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Much of London’s new housing is flats in larger developments, where snagging may go through the developer or managing agent.
As a London address, Maida Vale can be tricky for parking: let us know about parking bays, permits or a driveway.
Maida Vale is about 2 miles south of Hampstead, in Greater London. Whether you are in the middle of Maida Vale or further out, we cover new build mastic for every kind of property. Maida Vale is one of 764 places in Greater London where we work for new build mastic.
We work across the W9, NW8 and NW6 postcode area for new build mastic. New build mastic is available to properties on The Lane, Hall Road and Hill Road. With the A404 close by, Maida Vale is easy for our applicators to reach. Close by, we work in Westbourne Green (1 mile south), Little Venice (1 mile south-east), Paddington Green (1 mile south-east), Westbourne (1 mile south) and St John's Wood (1 mile north-east). Larger places within reach include London (5 miles south-east), St Pancras (3 miles east), Shoreditch (5 miles east), Walthamstow (8 miles north-east), Hoxton (5 miles east) and Whitechapel (5 miles east).
Near you in Maida Vale
We work in homes and buildings around Emslie Horniman's Pleasance, Paddington Academy and The Warrington pub. You’ll also find Cecil Sharp House (1.9 miles north-east) and Maida Vale School (under half a mile west). The closest station to Maida Vale is Kilburn High Road station, roughly 0.7 miles north of the centre. Other landmarks nearby include Montfichet's Tower (3.9 miles east) and O2 Centre (1.5 miles north). Green spaces nearby include Greville Place nature reserve and The Long Water.
Places near Maida Vale
Other services in Maida Vale
What the job involves on each surface
Show homes
Bathrooms, kitchens and frames in show homes are sealed or resealed to a neat finish ready for viewings. Tell us when the home is open so we can plan around it.
Bathrooms and en suites
Trays and baths in new builds settle as they’re used. We reseal once the old bead is fully out and baths are filled before sealing.
Maida Vale questions
Is parking an issue for new build mastic in Maida Vale?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. The visit is then planned around what’s available.
Can you do new build mastic in Maida Vale?
Yes, Maida Vale is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.
Do you use white or clear sealant?
Most bathroom joints are white or clear, but other colours are available. We choose one to suit the room and agree it with you.
How long should I leave it?
Different products cure at different speeds, so follow the cure time we give you.
Should I try DIY first?
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.
Do you hold any approvals?
Yes. ARBOMaster is the approved applicator scheme for Arbo sealants, and we are part of it.
Where is Mr Mastic based?
We’re a Crawley-based firm. Our area covers South East England, London and Scotland.
Do you work for landlords and businesses?
Yes, we do. Domestic, commercial and hotel work are all part of what we do, and we’re fully insured.
What affects the cost of new build mastic
We quote each job individually. This is what makes a difference:
- Which sealant suits the joint
- Working hours on commercial sites
- How easy the joints are to reach
- The number of rooms or windows
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. We give a clear quote before any work starts, so you know where you stand.
What we need to know
There’s no need for technical detail. It helps if you can tell us:
- What the problem is, such as mould, gaps, leaks or cracking
- Photos by email, if that’s easy
- Any access issues, like height or stairs
- If it’s domestic, commercial or a hotel
Want a quote for new build mastic? Please ring 0345 464 0079 or drop us an email and tell us about the job. We will explain what we’d do and give you a clear quote before any work starts.
Should I try it myself first?
If you’re set on DIY, put the effort into 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 sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Do you need new build mastic in Maida Vale?
The first winter with the heating on dries a new home quickly. Skirting, frames and worktops pull away slightly and cracks appear in the sealant.
Signs it’s time to call us include:
- Plot mastic for developers ahead of handover
- Skirting joints opening in the first winter
- Worktop and upstand sealant coming away
- Sealant applied over dusty or wet surfaces
If you’ve bought a new home near Kilburn High Road station, the sealant around baths, showers and frames is worth checking in the first year or two.
What to look for in a quote
- Which colour the sealant will be
- Is the old sealant removed completely?
- How long the guarantee is
- Who turns up on the day
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Don’t wait for the house to settle if water is getting through
- Watch for new gaps as the house dries out
- Keep photos and emails about snagging items
- Use the extractor fan every time you shower
Follow the cure time we give you before the area gets wet. Most silicones need around a day before water reaches them.
A seal that splits early is often a sign of movement. Have it resealed, and the tray or bath checked, before it gets worse.
When it is not the sealant
Before booking, it’s worth knowing the limits:
- Deciding who is responsible under a builder’s warranty
- Settlement cracks that need a surveyor
- Leaks from pipes, valves or wastes, which need a plumber
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we will tell you honestly before booking.
Surfaces we seal
- Show homes
- Kitchens
- Skirting & floors
- Windows & doors
- Bathrooms & en suites
- Plot handovers