Surrey · England
External Mastic in Irons Bottom
External mastic for Irons Bottom and the surrounding area: careful preparation, the right product and tidy work. Ask us for a quick quote.
- Weathered mastic that no longer stretches
- Joints pointed up with cement by mistake
- Leaking joints around cladding and façade panels
Work for landlords, hotels and businesses
We work for landlords and agents as well as homeowners. Resealing between tenancies keeps a property looking cared for before the next move-in.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
How we handle external mastic in Irons Bottom
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement where a rigid filler would soon crack. We’re often asked to deal with movement joints filled with mortar instead of sealant and sealant that has lost its bond to the brick or render, on concrete & block, joints between brick and frames and façade panels.
External sealant needs dry, clean surfaces, so work around Irons Bottom is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.
- Where
- Irons Bottom (RH2)
- Wider area
- Surrey
- Guarantee
- One year on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Common problems we fix in Irons Bottom
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
The problems people normally mention when they call include:
- Joints with sealant missing in places
- Cracked joints where brick meets render or frames
- Movement joints filled with mortar instead of sealant
- Damp patches traced to an open external joint
For landlords with property near Salfords station, split movement joints are easy to miss on a rental until damp shows inside.
What your quote should include
- What happens if the job turns out different
- How long the guarantee is
- Who turns up on the day
- When the joint can take water or movement
Why it’s worth doing now in Irons Bottom
It often makes sense to reseal all the failing joints on an elevation together. Joints of the same age tend to fail together, and access only has to be arranged once. Older cottages and farmhouses around Irons Bottom can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Combining jobs into one visit usually makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why choose Mr Mastic in Irons Bottom
- Domestic, commercial and hotel work
- An ARBOMaster approved applicator
- A sealant colour to suit the surroundings
- Tidy, careful work
Read our cost guide or customer reviews.
What affects the quote in Irons Bottom
Every job gets its own quote. These are the things that affect it:
- Whether there’s mould to deal with
- How many rooms, windows or areas are involved
- Access and height
- Working hours on commercial sites
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
What we need to know
What to tell us when you ask for a quote:
- Where the property is
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
- Photos by email, if that’s easy
There’s no standard price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or drop us an email.
Towns and villages near Irons Bottom
Other services in Irons Bottom
What external mastic looks like in Irons Bottom
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In the older streets around Emmanuel Church, an extension built onto an older house moves differently, and the joint between them takes the strain. If you look after a building such as Burys Court School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Irons Bottom is about 2 miles south of Reigate, in Surrey. We provide external mastic to householders, landlords and businesses in Irons Bottom and nearby. Irons Bottom is one of 395 towns and villages in Surrey we cover. We also work in Crawley, around 6 miles away.
Our applicators cover all of the RH2 postcode area for external mastic. Close by, we work in Sidlow (1 mile north-east), South Park (2 miles north), Leigh (2 miles west), Dawesgreen (2 miles west) and Reigate (2 miles north). Further out, we also cover Epsom (9 miles north), Horley (3 miles south-east), Redhill (3 miles north-east), Ewell (11 miles north), Walton-on-Thames (15 miles north-west) and Caterham (8 miles north-east).
Local landmarks in Irons Bottom
Typical jobs here are in homes near Earlswood Common and Reigate School and the streets around them. For rail, the closest station is Salfords station, roughly 2.1 miles east. Other landmarks nearby include Reigate Castle (2.5 miles north) and Reigate Priory Museum (2.2 miles north). Not far away are Mercers Lake and Colley Hill.
What happens on the day
At the end, we look at the finished work together and explain the cure time. The visit itself generally takes a few hours for a handful of joints, longer for a whole elevation, depending on the size of the job. For a village or hamlet like Irons Bottom, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Preparing for the visit
- Mention if the joints have been sealed before
- Tell us if parking is tricky
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
Getting a quote is simple: let us know the job and the location. Photos by email help us understand the job, and we will take it from there.
Related advice
Your questions about external mastic in Irons Bottom
Do you cover smaller places like Irons Bottom?
Yes, Irons Bottom is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you work for landlords with property near Salfords station?
Yes, we work for landlords and letting agents. Just call 0345 464 0079 or email us and tell us about the property, and we will give you a clear price.
What is backing rod for?
The foam is closed-cell backing rod. It stops the sealant going in too deep and bonding to three sides so it can flex with the joint.
What colours does the sealant come in?
We choose a sealant colour to suit the brick, stone or render, so the joint sits quietly in the wall. There’s a wide choice of exterior colours.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do. Working times can be discussed when we quote.
Do you guarantee your work?
Yes. All our work carries our 12-month guarantee.
Is it OK to seal over old sealant?
No, because it fails. We remove every bit of old sealant first, so the new joint bonds to clean surfaces.
How often do external joints need resealing?
It varies with how exposed the wall is and how much the joint moves. Look for splits, hardening or edges coming away and have them redone then.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
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 sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- Cracking across the wall rather than at a joint
- Subsidence or other structural problems
- Damp that is not coming from the joint
If you are not sure, just phone 0345 464 0079 or drop us an email and we’ll give you a straight answer.
Surfaces we seal
- Joints between brick and frames
- Façade panels
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Copings & trims