Wokingham · England
Warren Row External Mastic
External mastic in Warren Row from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Sealant pulling away from one side of the joint
- Plants rooting in failed movement joints
- Movement joints with cracked, split or missing sealant
How the job changes by surface
Concrete and blockwork
Big joints in concrete need careful depth control. We size the backing rod to the gap so the sealant is not too deep.
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. We reseal them with a sealant suited to the panel material.
External mastic for homes and businesses in Warren Row
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 mortar or filler would crack. Common call-outs are for weeds or debris growing in open joints and joints with sealant missing in places, on concrete & block, brickwork movement joints and copings & trims.
Older homes in small places like Warren Row may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water normally gets in.
Every job is covered by a one-year guarantee, wherever you are in Wokingham.
- Place
- Warren Row (RG10)
- Wider area
- Wokingham
- Cover
- A year, on every job
- Price
- Quoted before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Honest limits
Some problems need a builder, plumber or other trade rather than us:
- Walls that need new movement joints cut into them
- Movement that is more than a sealant joint can take
- Cracking across the wall rather than at a joint
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
Surfaces we seal
- Render & cladding joints
- Copings & trims
- Joints between brick and frames
- Façade panels
- Brickwork movement joints
- Concrete & block
What happens on the day
All our tools and materials come with us in the van, so you don’t need to buy or prepare anything. After a quick look at the joints together, we protect the area and start. Most jobs take a few hours to a few days, depending on the length of joint and the access. Somewhere as small as Warren Row, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- Primer is applied wherever the sealant needs it.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Before we arrive
- Tell us about any previous sealing or DIY attempts
- Let us know about stairs, lifts or work at height
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
Want a quote for external mastic? Please phone 0345 464 0079 or email us and tell us about the job. We will explain what we’d do and send you a clear quote before we start.
Related advice
Landlord and commercial work in Warren Row
If you manage several properties in or around Warren Row, several properties can be quoted together. Just tell us the addresses and what each one needs, and photos by email help.
We also work for property managers and facilities teams. We can quote a run of properties together, and we’re fully insured for the work.
What affects the quote in Warren Row
We quote each job individually. This is what makes a difference:
- How easy the joints are to reach
- Whether old sealant or filler has to be cut out
- The size of the job
- Whether there’s mould to deal with
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed. Call for a quick quote and we’ll explain what it covers.
Helping us quote
When you contact us, it’s useful to know:
- The rough size of the job
- What the problem is, such as mould, gaps, leaks or cracking
- Any previous sealing or DIY work
- How we’d reach the joints
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. Whenever you’re ready, ring 0345 464 0079 or drop us an email.
Nearby places to Warren Row
Also in Warren Row
Keeping the joints in good condition
No joint lasts for ever, but care makes a real difference. Our tips:
- Ask before painting over external sealant
- Look over the joints every year, ideally after winter
- Never let anyone fill a movement joint with mortar
- Clear growth from the base of walls and joints
Do not paint over the new sealant unless we’ve said the product is paintable. Many exterior sealants aren’t designed to be painted, and paint can crack as the joint moves.
Act while the splits are small. Then it’s a straightforward cut-out and reseal with no damage behind it to deal with.
Warren Row buildings and the weather
Historic houses like Harleyford Manor (about 2.4 miles north) are a reminder that the area around Warren Row 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. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Schools such as Knowl Hill Church of England Primary Academy are buildings too, and larger buildings have long runs of movement joint that eventually need resealing. For landlords with property near Shiplake station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. If you live in an older home near St Paul's Mission Church, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Warren Row is about 4 miles west of Maidenhead, in Wokingham. We carry out external mastic for homes and businesses in Warren Row and nearby. Warren Row is one of 35 towns and villages in Wokingham we cover. For nearby work, see our Reading page (8 miles or so).
All of RG10 is within our area for external mastic, from the main roads to the quietest streets. Whether your property is on Hodgedale Lane, Pudding Hill and Warren Row Road or anywhere close by, we can help. We also cover the places around Warren Row: Knowl Hill (1 mile south-east), Bowsey Hill (1 mile south-west), Cockpole Green (1 mile west), Cold Harbour (1 mile south-east) and Frogmill (2 miles north). Within a short drive, we also cover Reading (8 miles south-west), Wokingham (8 miles south), Woodley (6 miles south-west), Earley (8 miles south-west), Crowthorne (10 miles south) and Lower Earley (8 miles south-west).
Near you in Warren Row
Locally, jobs take us to homes and businesses close to Javatri pub and the streets around them. For rail, the closest station is Shiplake station, about 2.6 miles west of the centre. Nearby you’ll also find St Mark's Hospital (3.5 miles east) and Frazer Nash Archives (3.1 miles west). For a walk, there’s Hurley Chalk Pit and Weycock Hill.
Common questions in Warren Row
I let a flat near Shiplake station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can be quoted together. You can ring 0345 464 0079 or email us with the details for a clear quote.
Is Warren Row in your area for external mastic?
Yes, Warren Row is within the area we cover. We work across London and the South East. You can call 0345 464 0079 or send us an email and tell us what needs doing.
Is there any odour?
Some sealants have a smell while they cure, but it fades. Opening a window helps.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you.
How long does the job take?
Most jobs take anything from a few hours to several days, depending on the building. We will confirm how long when we quote.
Can you seal joints between render and window frames?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. The colour is chosen to suit.
Do you work at height?
Each building is different. Send us pictures and a rough idea of the height.
Do you take out the old sealant first?
Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Should I try it myself first?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.