Reading · England
External Mastic in Lower Caversham
Problem with your movement joints in Lower Caversham? We cut out the old, prepare the joints and apply the right sealant.
- Movement joints filled with mortar instead of sealant
- Plants rooting in failed movement joints
- Damp patches traced to an open external joint
External mastic in Lower Caversham, done properly
Joints between dissimilar materials, like brick against render or concrete against a steel frame, see movement from both sides. A flexible sealant bridges the two where a rigid filler would soon crack. Typical jobs include sealant pulling away from one side of the joint and failed seals between different materials, across façade panels, joints between brick and frames and brickwork movement joints.
Around Lower Caversham, garages, outbuildings and extensions all add to the joints on the outside of a home. Gutter ends, garage door frames and the joints where an extension meets the house are typical spots for leaks.
You are covered for a year from the day we finish. If there’s a problem with it, please ring 0345 464 0079 or send us an email.
- Place
- Lower Caversham (RG4, RG1)
- Region
- Reading
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
For landlords and businesses
Landlords and letting agents in Lower Caversham can book us as well as homeowners. Sealant work between tenants is a simple way to keep a property in good order.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.
DIY versus a professional finish
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
What affects the quote in Lower Caversham
Every job gets its own quote. This is what makes a difference:
- How much old sealant there is and how hard it is to remove
- When we can work, for business premises
- Which sealant suits the joint
- Whether there’s mould to deal with
Instead of a standard rate, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
Asking for a quote
You do not need to know the technical terms. It helps if you can tell us:
- Where the property is
- Whether it’s a home or a business
- Photos by email, if that is easy
- Any previous sealing or DIY work
Need a quote? Please phone 0345 464 0079 or email us and tell us about the job. We’ll explain what we’d do and send you a clear quote before any work starts.
Common questions in Lower Caversham
Can you help a landlord with a rental near Reading station?
Yes, landlords and agents are among the people we work for. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear price.
Do you cover Lower Caversham for external mastic?
Yes. Our work covers London and the South East, and Lower Caversham is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Can you match the colour of my brickwork?
The sealant colour is picked to suit the wall, so the joint sits quietly in the wall. Exterior sealants come in a good range of colours.
Is it messy?
Not at all. The area is protected while we work and cleaned up afterwards.
Is the work guaranteed?
Yes. There’s a 12-month guarantee on every job, large or small.
Do you work at height?
It depends on the height and the site. Low-level joints are straightforward; for higher ones, send details and we will confirm the access.
What information do you need?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply phone 0345 464 0079 or email us.
How often do external joints need resealing?
It varies from wall to wall: joints on exposed walls or with a lot of movement age sooner. Check them each year and reseal when they split or harden. Our work comes with a 12-month guarantee.
Do you need external mastic in Lower Caversham?
Many joints fail because they were sealed too deep or with nothing behind them. Sealant bonded to three sides has nowhere to go and rips as the joint opens.
The problems people usually mention when they call are:
- Failed seals between different materials
- Damp patches traced to an open external joint
- Brick movement joints where the sealant has split
- Moss and dirt in joints with no sealant left
Schools such as St Anne's Catholic Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Questions to ask before booking
- What product goes in the joint
- How the colour is chosen
- What guarantee comes with the work
- How the joint is cleaned and prepared
Why deal with it now?
The longer a joint stays open, the more water the wall takes in. Wet masonry is more easily damaged by frost near the open joint, so the damage spreads beyond the joint. Around Lower Caversham, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
We do not show prices on the website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or drop us an email and we will talk you through it.
Why book with us
- A 12-month guarantee on all work
- Tidy, careful work
- Experience in homes, commercial sites and hotels
- A choice of colours where the product allows
Take a look at how sealant jobs are priced or what customers say.
What we do, step by step
Good joint work is mostly preparation, and we do not rush it. Joints are cleaned back and dried before anything new goes in. In total, it normally takes a few hours for a handful of joints, longer for a whole elevation. A visit to Lower Caversham is planned like any other: the time, the access and where to park are agreed in advance. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- First we look over the joints with you, agree which to renew and talk through access.
- We cut out the failed sealant and rake out any dirt or growth.
- 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.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
How to prepare
- For business premises, tell us about site rules or sign-in
- Clear the area around the work
- Mention if the joints have been sealed before
Ask for a quote
We quote each job on its own. Just call 0345 464 0079 or email us with the details and send photos if you have them.
Advice
Places near Lower Caversham
Also in Lower Caversham
When it is not the sealant
In fairness, some problems need a different trade:
- Cracked brickwork or render that needs a builder or plasterer
- Movement that is more than a sealant joint can take
- Rising or penetrating damp from elsewhere in the wall
If in doubt, phone 0345 464 0079 or email us and we’ll say what we think before booking.
Where we work in Lower Caversham
- Concrete & block
- Façade panels
- Joints between brick and frames
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
What external mastic looks like in Lower Caversham
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 Mapledurham House (about 3.5 miles north-west) are a reminder that the area around Lower Caversham has older buildings as well as new. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
If you live in an older home near St John the Baptist, an extension built onto an older house moves differently, and the joint between them takes the strain. Rented homes near Reading station change hands often, and failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Lower Caversham is about 1 mile south of Caversham, in Reading. For external mastic in and around Lower Caversham, please phone 0345 464 0079 or drop us an email for a quick quote. We cover Reading from our Crawley base, Lower Caversham included. Our Reading coverage runs to 34 places, and Lower Caversham is one of them.
Here we cover the RG4 and RG1 postcode area for external mastic. If you need external mastic at a property on Star Road, Send Road and Mill Road or anywhere close by, our applicators can take on the job. Nearby, we also carry out external mastic in Newtown (1 mile south-east), Caversham (1 mile north), Emmer Green (1 mile north), Caversham Park Village (1 mile north) and Reading (1 mile south-west). Further out, we also cover Norcot (3 miles west), Tilehurst Within (3 miles west), Shinfield (4 miles south), Arborfield Garrison (6 miles south-east), Horncastle (3 miles south-west) and Whitley Wood (3 miles south).
Landmarks near Lower Caversham
Locally, jobs take us to homes and businesses close to Kendrick School, The Red Cow Public House and Eldon Square, among other places. Also close by are Chiltern Nursery Nurse Training School (0.7 miles north-west) and University of Reading library (1.8 miles south). The nearest railway station is Reading station, roughly 0.7 miles south-west. Nearby you’ll also find Royal Berkshire Hospital (1 mile south) and Berkshire Medical Heritage Centre Museum (0.9 miles south). The countryside around Lower Caversham includes Sonning Hill and South Lake.