Greater London · England

Parsons Green New Build Mastic

New build mastic across Parsons Green and nearby, with every bit of old sealant taken out first and a 12-month guarantee.

  • Cracked caulk along new skirting
  • Gaps opening as the house dries out and settles
  • New-build shower sealant that has already split

Need new build mastic in Parsons Green?

About our new build mastic in Parsons Green

Across Parsons Green, we work for both new-home owners and the builders handing those homes over. Whether it’s one en suite or a run of plots, the method is the same: remove, clean, prime where needed, then a neat new bead. We work on windows & doors, kitchens and skirting & floors, and common reasons people get in touch are cracked sealant around new window and door frames and new-build shower sealant that has already split.

From brand-new flats to converted terraces with new flooring, London has every kind of floor. Every joint between floor, skirting and threshold has to cope with some movement, in Parsons Green as anywhere.

You get a one-year guarantee, the same in Parsons Green as everywhere else we work.

Where
Parsons Green (SW6, SW10)
Wider area
Greater London
Guarantee
One year on every job
Quote
Quoted before any work starts
Telephone
0345 464 0079
Updated
26 October 2026
Mr Mastic applicator sealing the vertical joint between a glass shower screen and tiled wall

New homes and floors in Parsons Green

Much of London’s new housing is flats in larger developments, where snags may need reporting through the developer or the 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.

As a London address, Parsons Green can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.

Parsons Green is about 2 miles south of Kensington, in Greater London. For new build mastic in and around Parsons Green, please phone 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Greater London, Parsons Green included. Parsons Green is one of 764 places in Greater London we cover for new build mastic.

We work across the SW6 and SW10 postcode area for new build mastic. We cover properties on Buer Road, Vera Road and Ewald Road and the roads around them. Being close to the A304, Parsons Green is easy for our applicators to reach for new build mastic. We also cover the places around Parsons Green: Hurlingham (1 mile south), Walham Green (1 mile north-east), Chelsea Harbour (1 mile east), Sands End (1 mile east) and West Brompton (1 mile north). Larger places within reach include London (5 miles east), City of Westminster (3 miles north-east), Marylebone (4 miles north-east), St Pancras (5 miles north-east), Shoreditch (6 miles north-east) and Walthamstow (11 miles north-east).

Around Parsons Green

In Parsons Green, that means homes and buildings near Natural History Museum Library and Archives, Parsons Green (park) and The White Horse pub. You will also find Holy Cross RC School (under half a mile north) and Queensmill School (under half a mile south-east). Parsons Green’s nearest station is Imperial Wharf station, roughly 0.7 miles east of the centre. Nearby you’ll also find Baynard's Castle (5 miles north-east) and Western Hospital (0.8 miles north). The countryside around Parsons Green includes WWT London Wetland Centre and Campden Hill.

Map of Parsons Green © OpenStreetMap contributors

What happens on the day

Once we’re on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. After that, the work takes a few hours for most snagging lists, longer for a run of plots. In Parsons Green, 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.

  1. We look at why each joint failed, including any movement.
  2. We remove the failed sealant and clean the joints.
  3. Joints are dried and primed where the product calls for it.
  4. New sealant goes in, with baths filled first so they’re at their heaviest.
  5. We check every joint and leave you with the cure times.

Getting ready for the visit

  • Mention any sign-in or site rules at work premises
  • Keep children and pets away from the work area
  • For indoor joints, keep the area dry beforehand if you can

Get a quote

Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job.

Ask for a quote

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Parsons Green questions

Can parking be tricky for a visit in Parsons Green?

In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot, so mention what’s available when you book.

Do you work for landlords with property near Imperial Wharf station?

Yes. We work for landlords and agents as well as homeowners, and several properties can go on one quote. You can ring 0345 464 0079 or email us with the details for a clear quote.

What do you need from me for a quote?

Just the basics: the address or postcode, what’s wrong and any access issues. Then phone 0345 464 0079 or drop us an email.

Do the sealants smell?

Some sealants have a smell while they cure, which fades as it sets. Opening a window helps.

Will the old sealant be removed?

Yes. All of the old material is cut out and the joint cleaned before resealing.

Do you work in Parsons Green?

We do. Parsons Green is part of the area we cover.

Are you ARBOMaster approved?

Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.

Will you leave a mess?

Very little: the area around the joints is protected first, and we tidy up before we go.

Honest limits

We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:

  • Leaks from pipes, valves or wastes, which need a plumber
  • Damaged fittings that need replacing
  • Settlement cracks that need a surveyor

If in doubt, ring 0345 464 0079 or email us and we will say what we think.

Surfaces we seal

  • Kitchens
  • Skirting & floors
  • Windows & doors
  • Bathrooms & en suites
  • Show homes
  • Plot handovers

Surface by surface

Show homes

We can refresh show-home sealant that has discoloured or been knocked. The old bead comes out and a clean new one goes in.

Kitchens

Worktops in new homes can move slightly as the house dries, opening gaps behind the upstand. A fresh flexible bead closes them.

How to look after the new joints

Simple care keeps the joints in good condition. We recommend:

  • Act quickly if a seal starts to leak
  • Resist patching a failed seal with a tube from the DIY shop
  • Check bath and shower seals every few months as the house settles
  • Photograph failed sealant before it’s redone

Follow the cure time we give you before the area gets wet. Silicone is generally left for about a day to cure enough for use.

Report failed sealant to the builder while you’re in the snagging period. Once it ends, the repair may be down to you.

DIY versus a professional finish

A careful DIYer can reseal a simple joint, 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.

What a professional job adds is preparation and the right 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.

Quotes for new build mastic in Parsons Green

There’s no set price list, because jobs vary so much. The quote depends on:

  • How easy the joints are to reach
  • The type of sealant required
  • The number of rooms or windows
  • Mould in or behind the old joints

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.

Asking for a quote

Photos help, but a description is a good start. Please mention:

  • Whether it’s a home or a business
  • The problem you’ve noticed
  • Access, such as stairs, a lift or height
  • Whether it has been sealed before

We don’t publish a price list. Instead, we give you a clear quote for your job. To get started, call 0345 464 0079 or drop us an email.

Common problems we fix in Parsons Green

On many sites, sealant goes on in the final rush before handover. Joints aren’t always cleaned of dust or primed, so the bead never bonds properly.

If you can see any of these, it’s time to have the joints looked at:

  • Sealant applied over dusty or wet surfaces
  • Cracks appearing as a new home settles
  • New-build shower sealant that has already split
  • Messy sealant that spoils new finishes

For new homes near Imperial Wharf station, it’s worth checking the sealant early, while snags are still fresh.

Questions to ask before you book

  • Whether all the old sealant comes out first
  • Who turns up on the day
  • What the quote includes, VAT included or not
  • What preparation is included

How to choose a mastic man

20+ yearsMastic and sealant specialists
ARBOMaster approvedApproved applicator for Arbo sealants
Fully insuredDomestic, commercial and hotels
One-year guaranteeOn every job