Greater London · England
Furzedown New Build Mastic
New build mastic across Furzedown and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Sealant that never bonded to the surface
- New-build shower sealant that has already split
- Internal frame sealant that has split
When something else is needed
Some problems need a builder, plumber or other trade rather than us:
- Your warranty claim itself, which is between you and the builder
- Movement caused by a poorly fitted tray or bath
- Plumbing faults behind the sealant
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Surfaces we seal
- Skirting & floors
- Bathrooms & en suites
- Plot handovers
- Windows & doors
- Show homes
- Kitchens
New build mastic in Furzedown
A new house keeps drying out and settling for its first couple of years. Timber shrinks, plaster dries and baths and trays bed down, and sealant applied in a hurry at handover can split. If you are dealing with frame joints opening as the plaster dries and plot mastic for developers ahead of handover, we can put it right, whatever the surface.
New flats are going up across London, many of them in larger developments. Snagging there often goes through the developer or managing agent, and failed shower seals, open skirting joints and gaps at thresholds are typical.
Each job carries a 12-month guarantee, large or small.
- Where
- Furzedown (SW16, SW17, CR4)
- Wider area
- Greater London
- Guarantee
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Quotes for new build mastic in Furzedown
You’ll get a clear quote before we start. It’s based on:
- How many rooms, windows or areas are involved
- The number and length of the joints
- Whether there’s mould to deal with
- How easy the joints are to reach
The cost depends on how much there is to do, how hard the old material is to remove and how easy the joints are to reach. You’ll have a clear quote before any work starts, so you know where you stand.
Asking for a quote
To make quoting easier, let us know:
- Any previous sealing or DIY work
- The type of property
- Photos by email, if that is easy
- The address or postcode of the job
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
How it works
All our tools and materials come with us in the van. Once we have agreed what’s being done, we protect the area and start. Most jobs take a few hours for most snagging lists, longer for a run of plots. In Furzedown, 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.
- Every bit of the old builder’s sealant is cut out down to clean surfaces.
- Joints are vacuumed and cleaned of building dust.
- We prime where needed and apply a sealant suited to each joint.
- We tool every joint neatly and tell you when each area can be used.
How to prepare
- For indoor joints, keep the area dry beforehand if you can
- Let us know about stairs, lifts or work at height
- Clear items away from the joints we are working on
Get a quote
Need a quote? Please call 0345 464 0079 or drop us an email with a few details. We will explain what we’d do and give you a clear price before any work starts.
Advice
Different surfaces, different methods
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We remove cracked sealant and apply a flexible one that suits the frame.
Show homes
Tired or marked sealant in a show home can be renewed. We cut it out and reseal neatly.
Places near Furzedown
Also in Furzedown
Your questions about new build mastic in Furzedown
Do you cover Furzedown for new build mastic?
Yes, Furzedown is within the area we cover. We work across London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we will give you a clear quote.
Can you help a landlord with a rental near Tooting station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just ring 0345 464 0079 or send us an email with the address and what needs doing, and we will give you a clear price.
Do you have insurance?
Yes, we are fully insured for every job we do.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Can you match the sealant colour to my new kitchen or bathroom?
We use white, clear or a colour to suit the finishes. Let us know your preference when you ask for a quote.
Is there a guarantee?
Yes: twelve months. If anything is not right with the work within the year, let us know and we’ll sort it.
Do you work through snagging lists?
Yes. Send us the sealant items on the list, with pictures if you can and we will give you a quote. We will tell you if anything on it isn’t a sealant job.
Do the sealants smell?
Sometimes, a little. It fades as the sealant cures, and ventilation helps.
Signs you need new build mastic in Furzedown
Not every new-build joint gets the right sealant: decorators’ caulk in a wet area, or a stiff sealant where there’s movement. Both fail early.
Look out for any of the following:
- Cracked caulk along new skirting
- Beads laid onto grit and dust from the build
- Cracks appearing as a new home settles
- Internal frame sealant that has split
If you’ve bought a new home near Tooting station, the sealant around baths, showers and frames is worth checking in the first year or two.
What your quote should include
- Whether the sealant suits the joint
- Are they insured?
- Whether VAT is included
- Whether all the old sealant comes out first
Keeping the joints in good condition
So the new joints stay in good condition:
- Raise failed sealant with the developer while you’re covered
- Keep pictures and emails about snagging items
- Check bath and shower seals every few months as the house settles
- Follow the cure time we give you
Keep pictures of the joints and any snagging correspondence with your builder. It’s useful if you need to raise other issues later.
Mould takes hold quickly in sealant that has gaps or lifted edges. Dealing with it before it goes black keeps the job straightforward.
What new build mastic looks like in Furzedown
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. Many of London’s new homes are flats in bigger developments, where snags may need reporting through the developer or the managing agent.
Furzedown is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Furzedown is about 3 miles east of Wimbledon, in Greater London. Jobs in Furzedown get the same care as everywhere else we work: old sealant removed completely, careful preparation and a 12-month guarantee. Our Greater London coverage runs to 764 places, Furzedown among them. London is on our list too, around 6 miles away.
Every address in SW16, SW17 and CR4 is covered for new build mastic. We cover properties on Deal Road, Links Road and Seely Road and the roads around them. With the A216 close by, Furzedown is easy for our applicators to reach. Neighbouring places we cover for new build mastic include Streatham Park (1 mile north-east), Tooting (1 mile west), Tooting Bec (1 mile west), Streatham (1 mile east) and Colliers Wood (1 mile south-west). We also work in nearby towns such as London (6 miles north-east), City of Westminster (6 miles north), Marylebone (6 miles north), Kensington (6 miles north-west), St Pancras (7 miles north) and Shoreditch (8 miles north-east).
Near you in Furzedown
We work in homes and buildings around The Holland Tringham pub, Figge's Marsh and Furzedown Secondary School. The nearest railway station is Tooting station, roughly 0.6 miles south-west. A little further out are St Benedict's Hospital (less than half a mile west) and London Sewing Machine Museum (0.9 miles north-west). Green spaces nearby include Battersea Park Lake and Knight's Hill.
Why act early in Furzedown
For developers, getting the sealant right first time saves return visits. Snagging visits for failed sealant cost time on every plot, and they’re avoidable with good preparation. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Ask us for a quote and we will explain what it covers.
Why choose Mr Mastic in Furzedown
- Trusted Arbo and Everbuild sealants
- Fully insured
- We leave the area clean and tidy
- Any old sealant cut out fully, not covered over
Take a look at what affects the cost or our reviews.