West Berkshire · England
External & façade joints in Crockham Heath, West Berkshire
External mastic across Crockham Heath and nearby, with every bit of old sealant taken out first and a 12-month guarantee.
- Panel joints letting water in
- Weeds or debris growing in open joints
- Sealant that has lost its bond to the brick or render
Outside joints around Crockham Heath
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Benham Park (about 1.8 miles north) are a reminder that the area around Crockham Heath has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
Managing a site like Enborne C.E. Primary School? Then larger buildings have long runs of movement joint that eventually need resealing. In the older streets around Parish Church of St Michael, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Crockham Heath is about 3 miles south-west of Newbury, in West Berkshire. Jobs in Crockham Heath get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. We cover 155 towns and villages across West Berkshire. Reading is on our list too, around 18 miles away.
We cover every part of RG20 for external mastic and the streets around it. External mastic is available to properties on Church Lane and Church Close and the roads around them. We also cover Enborne (1 mile north), Hamstead Marshall (1 mile west), Skinners Green (1 mile north-east), Enborne Row (1 mile south-east) and Ball Hill (1 mile south-west). We also work in nearby towns such as Newbury (3 miles north-east), Thatcham (5 miles east), Burghfield Common (14 miles east), Speenhamland (3 miles north-east), Hungerford (6 miles west) and Calcot (15 miles east).
Local landmarks in Crockham Heath
Typical jobs here are in homes near Park House School, Hamstead Marshall Park and Craven Arms and the streets around them. The closest station to Crockham Heath is Newbury station, roughly 2.6 miles north-east. Well-known places in the area include West Berkshire Community Hospital (4 miles north-east) and British Balloon Museum & Library Ltd (2.7 miles north-east). Open spaces near Crockham Heath include Rack Marsh and Pilot Hill.
How we handle external mastic in Crockham Heath
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. The colour is chosen to suit the brick or render. If you are dealing with movement joints with cracked, split or missing sealant and rain getting behind render or cladding at a joint, we can put it right, on concrete & block, copings & trims and joints between brick and frames alike.
Around Crockham Heath, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
Whatever the size of the job, it’s backed by our one-year guarantee in Crockham Heath and across West Berkshire.
- Location
- Crockham Heath (RG20)
- Region
- West Berkshire
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Work for landlords, hotels and businesses
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will give you a quote.
In hotels, rooms out of use cost money, so we plan the work room by room. Hotel work is part of what we do, alongside homes and businesses.
What we’re called out for in Crockham Heath
Poor preparation causes many early failures: dusty or wet faces, no primer where one was needed, or old sealant left in. The new sealant then lets go long before it should.
The most common problems we see are:
- Joints pointed up with cement by mistake
- Moss and dirt in joints with no sealant left
- Failed seals between different materials
- Water getting into walls through failed joints
For landlords with property near Newbury station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What your quote should include
- When the joint can take water or movement
- Whether you can choose the colour
- How the joint is cleaned and prepared
- What happens if the job turns out different
What affects the quote in Crockham Heath
Every job gets its own quote. This is what makes a difference:
- The type of sealant required
- The old material and how stubborn it is
- Access and height
- Whether there’s mould to deal with
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or send us an email and we will talk you through it.
What we need to know
Before you ask for a quote, have a think about:
- A few pictures by email, if you can
- Whether it has been sealed before
- What the problem is, such as mould, gaps, leaks or cracking
- The address or postcode of the job
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. You’ll have a clear quote before we start.
Different surfaces, different methods
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
Also near Crockham Heath
Other services in Crockham Heath
What we do, step by step
We bring everything the job needs with us, so there’s nothing for you to buy. Once we’ve agreed what’s being done, we protect the area and start. Most jobs take a few hours for a handful of joints, longer for a whole elevation. Somewhere like Crockham Heath needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- First, the joints are inspected and the access agreed.
- We cut out the old mastic and rake out anything in the joint.
- The faces are brushed clean and primed where the product requires it.
- We fit closed-cell backing rod to control the depth.
- We apply the sealant, tool it and check the whole run.
Preparing for the visit
- Let us know if you’ve seen damp or leaks
- Clear items away from the joints we’re working on
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
If you’re in Crockham Heath and need external mastic, call 0345 464 0079 or send us an email. Tell us what the problem is and where, and we’ll agree the price before any work begins.
Advice
How to look after the new joints
Once the sealant has cured, a few habits help it last:
- Show decorators and builders where the movement joints are
- Fix overflowing gutters above sealed joints
- Keep soil, plants and ivy away from the joints
- Make sure movement joints aren’t pointed over
Make sure anyone working on the wall later knows where the movement joints are. They should be kept open and resealed, not filled.
Water getting behind cladding or render can go unnoticed for a long time. By the time there’s a damp patch, the damage can be well established, so it’s worth resealing at the first signs.
Leave it or put it right?
Mortar or ordinary filler might look like a quick way to close an open joint, but it locks the joint solid. The movement then cracks the brickwork or render nearby. The correct repair is a flexible sealant with the right backing. Older cottages and farmhouses around Crockham Heath can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why choose Mr Mastic in Crockham Heath
- Sealant colour chosen to suit
- Experience in homes, commercial sites and hotels
- More than 20 years in sealant work
- A 12-month guarantee on all work
Take a look at how sealant jobs are priced and what customers say.
FAQs for Crockham Heath
Can you do external mastic in Crockham Heath?
Yes, Crockham Heath is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or drop us an email and tell us what needs doing, and we’ll give you a clear quote.
I let a flat near Newbury station. Can you help?
Yes, we work for landlords and agents. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before we start.
Will there be a smell?
That depends on the sealant. Some products have a noticeable smell, others very little.
Will the new joint stand out?
We aim for a joint that suits the wall rather than one that jumps out. We will talk through colour options before work begins from the range available.
Do you use backing rod?
Backing rod goes into deeper joints as a matter of course. It sets the sealant depth and prevents three-sided bonding, so the joint can move.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
Do you guarantee your work?
Yes. All our work carries a 12-month guarantee.
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.