Greater London · England
New Build Mastic in Cranham
New build mastic for Cranham, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Gaps opening as the house dries out and settles
- Frame joints opening as the plaster dries
- Worktop and upstand sealant coming away
How it works
We bring everything the job needs with us. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take anything from a few hours to several days, depending on the number of plots. In a London area like Cranham, the main things to plan are parking and access: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- Each joint is checked for movement before we start.
- We remove the failed sealant and clean the joints.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
Getting ready for the visit
- Clear items away from the joints we are working on
- Mention any leaks or damp you’ve noticed
- Where the joints are inside, avoid wetting them before we arrive
How to get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, ring 0345 464 0079 or email us.
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New build mastic in Cranham
In a new home, every joint should have a clean, even bead. When the finish is smeared, patchy or already cracking, it’s worth putting right early, before water reaches anything behind it. If you have messy sealant that spoils new finishes and beads laid onto grit and dust from the build, we can help.
Much of London’s new housing is flats in larger developments. In a new development, snags are often reported through the developer or the managing agent, and failed shower seals, open skirting joints and gaps at thresholds are typical.
There’s a 12-month guarantee on every job, large or small.
- Place
- Cranham (RM14)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Leave it or put it right?
Small cosmetic gaps can wait for the house to settle, but a leaking seal can’t. Not sure whether yours can wait? You can phone 0345 464 0079 or send us an email with a few pictures and we will tell you. 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.
There are no prices on our website, because each job is priced on what it involves. For a quick quote, please ring 0345 464 0079 or send us an email and we’ll talk you through it.
What you get with us
- Every job guaranteed for a year
- Quality sealants from Arbo and Everbuild
- 180+ five-star Google reviews
- Over 20 years’ experience
Joints and finishes in Cranham homes
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. Many of London’s new homes are flats in bigger developments, where snagging may go through the developer or managing agent.
Cranham is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Cranham is about 2 miles east of Hornchurch, in Greater London. If you need new build mastic in Cranham, please phone 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover Greater London. Our Greater London coverage runs to 764 places, Cranham among them. There’s also a page for Chelmsford, about 15 miles away.
We cover every part of RM14 for new build mastic. Streets in the area include Avon Road, Moor Lane and Front Lane. We also cover the places around Cranham: Upminster (1 mile west), Puddle Dock (1 mile east), Upminster Bridge (1 mile west), North Ockendon (2 miles south-east) and Emerson Park (2 miles north-west). Larger places within reach include Shoreditch (15 miles west), Walthamstow (13 miles west), Hoxton (15 miles west), Whitechapel (15 miles west), Orpington (14 miles south-west) and Plaistow (11 miles west).
Landmarks near Cranham
We work in homes and buildings around The James Oglethorpe Primary School, The Crumpled Horn pub and St. Andrew's Park and the streets around them. The closest station to Cranham is Upminster station, about 0.7 miles west. Well-known places in the area include The Mercury Mall (3.7 miles west) and Upminster Tithe Barn Museum of Nostalgia (0.6 miles north-west). Green spaces nearby include Cranham Brickfields.
How the job changes by surface
Bathrooms and en suites
Trays and baths in new builds settle as they’re used. The joint is stripped back before the new bead goes in.
Skirting and floors
Where the floor meets a bath panel or kitchen plinth, the joint keeps mop water out. They get a flexible, water-resistant sealant.
Can I do it myself?
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
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.
What we are called out for in Cranham
On many sites, sealant goes on in the final rush before handover. Joints are not always cleaned of dust or primed, so the bead never bonds properly.
People generally contact us when they notice something like this:
- Plot mastic for developers ahead of handover
- Frame joints opening as the plaster dries
- Shower seals failing in the first year or two
- Cracked caulk along new skirting
For new homes near Upminster station, it’s worth checking the sealant early, while snags are still fresh.
What your quote should include
- How much experience the applicator has
- What the cure time is
- Whether VAT is included
- What preparation is included
How to look after the new joints
To keep the joints looking good and working properly:
- Follow the cure time we give you
- Watch for new gaps as the house dries out
- Clean sealant with mild detergent, not abrasives
- Record problems with dated pictures
Wipe the sealant with warm soapy water. Avoid abrasive pads and strong solvents as they wear the bead.
Mould takes hold quickly in sealant that has gaps or lifted edges. Resealing before mould gets in keeps the job straightforward.
Places near Cranham
More services for Cranham
Landlord and commercial work in Cranham
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. We’ve worked in hotels as well as homes and businesses.
FAQs for Cranham
Can you help a landlord with a rental near Upminster 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 email us with the address and what needs doing, and we’ll give you a clear price.
Can you do new build mastic in Cranham?
Yes. Our work covers London and the South East, and Cranham is part of that. Just phone 0345 464 0079 or send us an email with a few details of the job, and we will give you a clear price.
Do you use white or clear sealant?
It depends on the joint: white or clear in most bathrooms, and a colour to suit worktops, frames and floors elsewhere. We agree the colour before any work starts.
Will you just run a new bead over the existing one?
No. Fresh silicone doesn’t stick to the old layer, so sealing over the top fails quickly. We cut the old bead out completely.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected.
Do you have insurance?
Yes. We’re fully insured.
Can I send you my snagging list?
Yes. Send us the sealant items on the list, with pictures if you can and we will give you a quote. We’ll tell you if anything on it is not a sealant job.
My new home is still under warranty. Should I contact you?
Report it to the builder first while you are covered. Once that’s done, or if they will not put it right, we’ll cut it out and reseal it.