Greater London · England
Havering-atte-Bower External Mastic
Sealing brickwork movement joints, render, cladding and façade joints in Havering-atte-Bower, with a 12-month guarantee on every job. Ask us for a quote.
- Brick movement joints where the sealant has split
- Rain getting behind render or cladding at a joint
- Failed seals between different materials
What affects the quote in Havering-atte-Bower
Jobs vary more than people expect. The main factors:
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
- How many areas need sealing
- How easy the joints are to reach
Combining jobs into one visit is normally more efficient than separate visits. We’ll send you a clear quote for the lot.
What to tell us for a quote
When you contact us, these details help:
- Any previous sealing or DIY work
- Access, such as stairs, a lift or height
- Where the job is, and your postcode
- Whether it’s a home or a business
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we will explain what’s involved before giving you a price.
External mastic in Havering-atte-Bower, done properly
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible sealant bridges the two. Typical jobs include rigid filler in a joint that should flex and sealant pulling away from one side of the joint, on joints between brick and frames, render & cladding joints and façade panels. Need a silicone sealant specialist near Havering-atte-Bower? That’s us.
London’s terraces and conversions often share walls, gutters and downpipes with their neighbours, so a leaking gutter joint or failed wall joint can affect more than one home. In a converted house in Havering-atte-Bower, it’s worth checking who is responsible for the outside before booking.
Every job comes with a 12-month guarantee.
- Place
- Havering-atte-Bower (RM4)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- Call
- 07833 053749
- Updated
- 26 October 2026
What we do, step by step
All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Havering-atte-Bower. A visitor permit or a nearby bay makes the visit run more smoothly.
- We look at every joint and agree a colour to suit the wall.
- Failed sealant is removed back to clean, sound faces.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- Primer is applied wherever the sealant needs it.
- We gun in low-modulus sealant and tool it neatly.
Before we arrive
- Mention any sign-in or site rules at work premises
- Mention if the joints have been sealed before
- Let us know about parking restrictions
Get a quote
Asking for a quote is easy: tell us what needs doing and where, and roughly how big it is. A few pictures by email make the job easier to understand, and we’ll take it from there.
Related advice
Nearby places to Havering-atte-Bower
Also in Havering-atte-Bower
DIY sealant or a professional job?
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, then guaranteed for a year.
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
Havering-atte-Bower: your questions answered
Can you help a landlord with a rental near Harold Wood station?
Yes, rental work is part of what we do. Just ring 07833 053749 or send us an email and tell us about the property, and we will send you a clear quote.
Do you cover Havering-atte-Bower for external mastic?
Yes, Havering-atte-Bower is within the area we cover. We work across London and the South East. Just phone 07833 053749 or email us with a few details of the job.
Are you ARBOMaster approved?
Yes. We are an ARBOMaster approved applicator.
How long before the joint can be used?
Many sealants skin over quickly but take longer to cure fully. We will give you the cure time for the product we used before we leave.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done.
Does someone need to be in?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
When will the joints need doing again?
There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Our work comes with a one-year guarantee.
Do you work for hotels and businesses?
Yes. We work in offices, washrooms, hotels and other commercial premises, as well as homes. Working times can be discussed when we quote.
When to call us in Havering-atte-Bower
Using the wrong sealant is another common reason. A stiff, general-purpose sealant cannot cope with a joint that moves a lot, so it pulls away from the edges.
Any of these means the joints need attention:
- Weeds or debris growing in open joints
- Gaps where render, brick and frames meet
- Movement joints filled with mortar instead of sealant
- Sealant pulling away from one side of the joint
Havering-atte-Bower is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
What to look for in a quote
- Who turns up on the day
- What guarantee comes with the work
- Whether they’re fully insured
- Whether all the old sealant comes out first
Landlord and commercial work in Havering-atte-Bower
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Housing providers, facilities teams and property managers book us too in Havering-atte-Bower and across Greater London. Several sites can go on one quote, and we are fully insured.
Why deal with it now?
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner. In London conversions, one flat’s bathroom is often above another flat’s ceiling, so a small leak from tired sealant can mean a neighbour’s ceiling and a lot of disruption. Dealing with it early is far simpler for homes in Havering-atte-Bower.
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
What you get with us
- A 12-month guarantee on all work
- Old sealant always removed completely
- We agree the colour with you first
- 180+ five-star Google reviews
Read how sealant jobs are priced and our reviews.
What external mastic looks like in Havering-atte-Bower
With historic houses such as Hare Hall (about 2.6 miles south) nearby, there’s older building stock in the area around Havering-atte-Bower as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as Dame Tipping Church of England Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. For landlords with property near Harold Wood station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Havering-atte-Bower is about 3 miles north-west of Harold Wood, in Greater London. Homes, rented property, offices and hotels in Havering-atte-Bower is covered for external mastic, old or new, large or small. The work is guaranteed for a year. Havering-atte-Bower is one of 786 places in Greater London we cover for external mastic.
Work in RM4 is quoted and booked the same way as anywhere else. We cover properties on North Road, Broxhill Road and Bower Farm Road and the roads around them. Neighbouring places we cover for external mastic include Chase Cross (1 mile south-west), Stapleford Abbotts (1 mile north-west), Redbridge (2 miles west), Lambourne End (2 miles west) and Lambourne (3 miles north-west). Further out, we also cover London (15 miles south-west), St Pancras (15 miles south-west), Shoreditch (13 miles south-west), Walthamstow (9 miles west), Hoxton (13 miles south-west) and Whitechapel (13 miles south-west).
Around Havering-atte-Bower
Around Havering-atte-Bower, our work takes us to homes and buildings near The Top Oak pub, Havering Country Park and Bower Park Academy and the streets around them. The nearest railway station is Harold Wood station, roughly 2.7 miles south-east. Other landmarks nearby include Romford Shopping Hall (2.8 miles south) and Harold Wood Hospital (2.5 miles south-east). Green spaces nearby include Bedfords Park.
How the job changes by surface
Render joints
Render is weaker at the surface than brick, so a low-modulus sealant is kinder to the joint edges. We prime where the product needs it.
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. That movement goes into the joint, so the sealant in it must stay soft and stretchy.