Greater London · England

Peaks Hill New Build Mastic

Plot mastic for developers and snagging failed sealant in new homes for homes and businesses in Peaks Hill and across Greater London. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.

  • Smeared, uneven beads picked up at snagging
  • Sealant applied over dusty or wet surfaces
  • Gaps opening as the house dries out and settles

New build mastic in Peaks Hill

About our new build mastic in Peaks Hill

New homes move as they dry out. Timber shrinks, plaster dries and baths and trays bed down, and sealant applied in a hurry at handover can split. Typical jobs include leaking shower tray seals in a new home and plot mastic for developers ahead of handover, on show homes, skirting & floors and windows & doors.

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 Peaks Hill as anywhere.

We stand behind the work with a 12-month guarantee, so you are not left on your own once the job is done.

Sealant gun close-up on a shower enclosure wall joint
Location
Peaks Hill (CR8, SM6)
Wider area
Greater London
Cover
One year on every job
Price
Quoted before any work starts
Call
0345 464 0079
Page updated
26 October 2026

When something else is needed

We won’t take on work that won’t last, so these are the limits:

  • Structural cracks in walls or ceilings
  • Deciding who is responsible under a builder’s warranty
  • Damaged fittings that need replacing

If you’re not sure, just call 0345 464 0079 or drop us an email and we will give you a straight answer before booking.

Joints and surfaces we work on

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

What new build mastic looks like in Peaks Hill

Many of London’s new homes are flats in bigger developments, where snags may need reporting through the developer or the managing agent. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.

For new homes near Purley station, it’s worth checking the sealant early, while snags are still fresh. As a London address, Peaks Hill can be tricky for parking: tell us about permits, visitor bays or off-street space when you book.

Peaks Hill is about 1 mile north-west of Purley, in Greater London. Anywhere in CR8, we can carry out new build mastic at your property. Across Greater London, we cover 764 places, and Peaks Hill is one of them. There’s also a page for London, roughly 11 miles from Peaks Hill.

Work in CR8 and SM6 works the same way as everywhere else we cover. Local streets include Furze Lane, Birch Lane and Plough Lane, and we cover them all. Main roads around Peaks Hill include the A2022. We also cover Russell Hill (1 mile north), Roundshaw (1 mile north), Woodcote (1 mile south-west), Purley (1 mile south-east) and Woodcote Green (1 mile west). Larger places within reach include London (11 miles north), City of Westminster (12 miles north), Marylebone (12 miles north), Kensington (11 miles north), St Pancras (13 miles north) and Shoreditch (13 miles north).

What’s near Peaks Hill

Typical jobs here are in homes near Carshalton Park, Margaret Roper Catholic Primary School and The Foxley Hatch pub, among other places. For rail, the closest station is Purley station, roughly 0.8 miles south-east. A little further out are St George's Walk (2.4 miles north-east) and Croydon Airport Visitor Centre (1 mile north-east). For a walk, there’s Duppas Hill and Roundshaw Downs.

Map of Peaks Hill © OpenStreetMap contributors

Why it’s worth doing now in Peaks Hill

DIY kits do not solve the main problems with new-build sealant: dust, no primer and old sealant left in the joint. Proper removal and preparation are what make it last. In a flat in Peaks Hill, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.

No two jobs are quite the same, so we quote each one individually. Size, access and the product the joint needs all play a part.

Why book with us

  • A choice of colours where the product allows
  • We leave the area clean and tidy
  • Anti-fungal sanitary silicone in wet areas
  • 180+ five-star Google reviews

Read our cost guide or customer reviews.

Keeping the joints in good condition

Good habits help new joints last longer. Our tips:

  • Watch for new gaps as the house dries out
  • Avoid running a DIY bead over the old one
  • Get a leaking seal dealt with right away
  • Use the extractor fan every time you shower

Watch the joints as the house settles. Hairline gaps can open as timber and plaster dry and can be resealed later.

The sooner you deal with untidy or cracking sealant, the less there is to put right. Left alone, a small crack can become a leak over time.

Work for landlords, hotels and businesses

A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.

Hotels need rooms back in use, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.

Should I try it myself first?

Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.

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.

FAQs for Peaks Hill

Can you help a landlord with a rental near Purley 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 drop us an email with the address and what needs doing, and we’ll give you a clear quote.

Can parking be tricky for a visit in Peaks Hill?

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.

What colour sealant will you use?

It depends on the joint: white or clear for most sanitary joints, colours for worktops, floors and frames. We agree the colour before work begins.

Do you work through snagging lists?

Yes. Photos of each sealant item help us quote. Items that need a plumber, tiler or the builder are flagged.

Are you insured?

Yes. We’re fully insured for every job we do.

How much does new build mastic cost in Peaks Hill?

The cost depends on the size of the job, access and how much old sealant has to come out. Ask us for a quote and we will talk you through it.

Do you hold any approvals?

Yes. We hold ARBOMaster approved applicator status.

Will it make a mess?

No. The area is protected while we work and cleaned up afterwards.

What affects the cost of new build mastic

The price is agreed before any work begins. It’s based on:

  • Access and height
  • How much old sealant there is and how hard it is to remove
  • The number of rooms or windows
  • The amount of work

Combining jobs into one visit is generally more efficient than separate visits, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.

Asking for a quote

The more you tell us, the more accurate the quote. When you ask for a quote, tell us:

  • A few pictures by email, if you can
  • The type of property
  • Whether it has been sealed before
  • Where the property is

If you are in Peaks Hill and need new build mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.

The process

When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take a few hours for most snagging lists, longer for a run of plots. For a job in Peaks Hill, parking and access are the things to plan: let us know about parking, the floor we will be working on and any lift or shared entrance.

  1. First we work through your snagging list or plot schedule with you.
  2. Failed or untidy sealant is cut out completely.
  3. Surfaces are cleaned of building dust and primed where needed.
  4. We apply a sealant that suits each joint and tool it to a neat finish.
  5. Each area is checked and left with its cure time.

Getting ready for the visit

  • Clear items away from the joints we’re working on
  • Mention any parking rules near the property
  • On commercial sites, let us know about site rules

How to get a quote

We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear price for your job. To arrange one, phone 0345 464 0079 or drop us an email.

Ask for a quote

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