Greater London · England
New-build mastic & snagging in Ham, Greater London
Professional new build mastic in and around Ham, with old sealant always removed completely.
- Skirting joints opening in the first winter
- Gaps opening as the house dries out and settles
- Beads laid onto grit and dust from the build
New build mastic in Ham
Some owners wait for the first year’s movement before having joints redone. For small cosmetic gaps, that is reasonable, but a failed shower or bath seal shouldn’t wait. We are often asked to deal with shower seals failing in the first year or two and sealant applied over dusty or wet surfaces, on bathrooms & en suites, skirting & floors and kitchens.
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.
Our work is backed for twelve months, and the guarantee is the same wherever you are.
- Location
- Ham (TW10, KT2, TW11)
- Region
- Greater London
- Guarantee
- One year on every job
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
What happens on the day
We keep the work tidy and contained to the area we’re working on. The job usually takes a few hours in a single home, and we tell you how long to leave it before we go. For a job in Ham, 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 going through the snagging items or plot schedule with you.
- The failed sealant is removed completely, with no layer left behind.
- 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.
Before we arrive
- Mention any sign-in or site rules at work premises
- Where the joints are inside, avoid wetting them before we arrive
- Mention any parking rules near the property
How to get a quote
Asking for a quote is easy: let us know the job and the location. A few pictures by email make the job easier to understand, and we’ll take it from there.
Related advice
Landlords, agents and businesses in Ham
We also work for property managers and facilities teams. We can quote a run of properties together, and we are fully insured for the work.
Failed sealant is one of the commonest items on a check-out report, and it’s easy to sort out between tenants. Several properties can go on one quote.
Why it’s worth doing now in Ham
For developers, getting the sealant right first time saves return visits. Snagging visits for failed sealant cost time on every plot and most come down to preparation. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in Ham, the repair is bigger than a sealant job.
The cost depends on how much there is to do, how much old material has to come out and access to the work. You’ll have a clear quote before any work starts, so you know where you stand.
What you get with us
- 20+ years of sealant experience
- Anti-fungal silicone where joints get wet
- Homes, businesses and hotels
- Sealant colour chosen to suit
Take a look at what affects the cost and what customers say.
DIY sealant or a professional job?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
When something else is needed
We’ll always be straight with you, so here’s what new sealant won’t do:
- Leaking fittings rather than failed sealant
- Broken tiles or a split tray
- Movement caused by a poorly fitted tray or bath
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think before booking.
What we seal
- Plot handovers
- Kitchens
- Windows & doors
- Show homes
- Bathrooms & en suites
- Skirting & floors
What new build mastic looks like in Ham
Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or 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.
Ham is in London, so parking needs planning: let us know about parking bays, permits or a driveway. If you’ve bought a new home near Teddington station, the sealant around baths, showers and frames is worth checking in the first year or two.
Ham is about 1 mile south-east of Twickenham, in Greater London. Our applicators cover new build mastic for homes and businesses in Ham and nearby. Across Greater London, we cover 764 places, Ham among them. London is on our list too, about 10 miles from Ham.
We cover every part of the TW10, KT2 and TW11 postcode area for new build mastic and the streets around it. Whether your property is on New Road, Lock Road and Cave Road or anywhere close by, we can help. Ham is on the A307, so it’s easy for us to get to. Neighbouring places we cover for new build mastic include Petersham (1 mile north), Eel Pie Island (1 mile north-west), Strawberry Hill (1 mile west), Teddington (1 mile south-west) and Richmond (1 mile north). Further out, we also cover London (10 miles north-east), City of Westminster (9 miles north-east), Marylebone (9 miles north-east), Kensington (6 miles north-east), St Pancras (10 miles north-east) and Shoreditch (12 miles north-east).
Local landmarks in Ham
Locally, jobs take us to homes and businesses close to Grey Court School, The New Inn Public House and Sudbrook Park, among other places. The nearest railway station is Teddington station, about 1.2 miles south-west of the centre. Nearby you will also find Eel Pie Island Museum (1.1 miles north-west) and Bentall Centre (1.6 miles south). Green spaces nearby include Kew Gardens Lake and Richmond Hill.
Your questions about new build mastic in Ham
Can you help a landlord with a rental near Teddington station?
Yes, we work for landlords and agents. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.
Is parking a problem for a job in Ham?
It can be, so it helps to tell us about permits, visitor bays or off-street space when you book. That way the visit can be planned around it.
Will you just run a new bead over the existing one?
No. New silicone won’t bond to old silicone, so it soon lifts and traps water. We cut the old bead out completely.
Do you have insurance?
Yes. We’re fully insured.
Are you ARBOMaster approved?
Yes. We hold ARBOMaster approved applicator status, and we’re fully insured.
How do I get a quote for new build mastic in Ham?
We don’t publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You will get a clear quote before we start.
Where is Mr Mastic based?
We’re a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
What information do you need?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Quotes for new build mastic in Ham
We don’t publish a price list, because no two jobs are the same. The quote depends on:
- The number of rooms or windows
- How easy the joints are to reach
- The type of sealant required
- Whether old sealant or filler has to be cut out
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and give you a clear price before any work starts.
What to tell us for a quote
There’s no need for technical detail. Just tell us:
- Pictures of the joints, sent by email
- What the problem is, such as mould, gaps, leaks or cracking
- How we’d reach the joints
- How many joints, rooms or windows are involved
For a quote, ring 0345 464 0079 or send us an email with the location and a short description of the problem. We will give you a clear price before any work starts.
Nearby places to Ham
What else we do in Ham
How to look after the new joints
Looking after new joints is easy:
- Don’t wait for the house to settle if water is getting through
- Do not seal over failed sealant yourself
- Follow the cure time we give you
- Check bath and shower seals every few months as the house settles
Do not stand on the bath edge or the lip of the tray while the sealant cures. Report any movement in a bath or tray.
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.