Wokingham · England
External & façade joints in Newtown, Wokingham
We cover Newtown for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly and every job guaranteed for a year.
- Movement joints filled with mortar instead of sealant
- Old sealant gone brittle and cracked
- Joints where the bead has come unstuck
How we handle external mastic in Newtown
A movement joint is only as good as its depth. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. If you are dealing with sealant that has lost its bond to the brick or render and panel joints letting water in, we can put it right, on copings & trims, concrete & block and brickwork movement joints alike.
Around Newtown, 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.
Every job is covered by our 12-month guarantee, wherever you are in Wokingham.
- Place
- Newtown (RG1, RG6, RG4)
- Wider area
- Wokingham
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What sealant work cannot fix
Honest advice matters more to us than a booking, so here’s what sealant can’t fix:
- Adding movement joints to masonry that has none
- Damp that isn’t coming from the joint
- Cracks in the bricks or render themselves, away from the joints
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Render & cladding joints
- Joints between brick and frames
- Façade panels
- Copings & trims
- Brickwork movement joints
- Concrete & block
What happens if it’s left?
Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The wall then cracks somewhere else. A flexible sealant over backing rod is what the joint needs. In a smaller place like Newtown, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why choose Mr Mastic in Newtown
- 20+ years of sealant experience
- Anti-fungal silicone where joints get wet
- Any old sealant cut out fully, not covered over
- Tidy, careful work
Read what affects the cost and customer reviews.
Should I try it myself first?
If you are set on DIY, put the effort into 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.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly, so tell us about it when you ask for a quote.
Outside joints around Newtown
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. With historic houses such as Mapledurham House (about 4.3 miles north-west) nearby, there’s older building stock in the area around Newtown as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth.
Schools such as New Town Primary School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. In the older streets around St John and St Stephen, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you let a flat or house near Reading station, outside joints that have cracked can let damp into a rental, so check them between lets.
Newtown is about 1 mile east of Reading, in Wokingham. Jobs in Newtown get the same care as everywhere else we work: old sealant removed completely, careful preparation and a one-year guarantee. Across Wokingham, we cover 35 places, Newtown among them.
Our applicators cover all of RG1, RG6 and RG4 for external mastic. If you need external mastic at a property on Orts Road, Eldon Road and Amity Road or anywhere close by, we can help. Nearby, we also carry out external mastic in Lower Caversham (1 mile north-west), Reading (1 mile west), Earley (2 miles south-east), Caversham (2 miles north-west) and Play Hatch (2 miles north). Within a short drive, we also cover Wokingham (5 miles south-east), Crowthorne (9 miles south-east), Winnersh (3 miles south-east), Woosehill (5 miles south-east), Emmbrook (5 miles south-east) and Twyford (4 miles north-east). As one of the bigger places in Wokingham, Newtown has every kind of property, from flats to offices.
Landmarks near Newtown
In Newtown, that means homes and buildings near University of Reading library, Eldon Square and The Fisherman's Cottage pub, among other places. Other local landmarks include Bulmershe College (under half a mile west) and Maiden Erlegh School (0.6 miles south-east). For rail, the closest station is Reading station, roughly 1.1 miles west of the centre. Other landmarks nearby include The Oracle (1.1 miles west) and Royal Berkshire Hospital (0.6 miles south-west). Green spaces nearby include Sonning Hill and Fobney Island Wetland Reserve.
The process
A visit follows a simple pattern: we look at the joints together, mask and protect the surrounding surfaces, do the work and clear up. Most jobs take a few hours to a few days, depending on the length of joint and the access. A visit to Newtown is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- 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.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Tell us about any previous sealing or DIY attempts
- Mention any parking rules near the property
How to get a quote
For a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. You’ll have a clear quote before work begins.
Read more
Newtown questions
Can you do external mastic in Newtown?
Yes. Our work covers London and the South East, and Newtown is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job, and we’ll give you a clear quote.
Do you work for landlords with property near Reading station?
Yes. We work for landlords and letting agents as well as householders. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.
Will there be a smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. Indoors, that normally means someone at home.
Do you do commercial work?
Yes. Hotels, offices and other businesses use us.
Can you seal joints between two different materials?
Yes. We cut out the old sealant, prepare both faces and reseal with a flexible exterior product. The colour is chosen to suit.
What’s an expansion joint in brickwork?
A vertical gap in a long brick wall is usually a movement joint. It lets the bricks expand without cracking and needs a flexible seal, not mortar.
What sealant do you use?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We’ll tell you what we’re using and why.
Towns and villages near Newtown
Other services in Newtown
For landlords and businesses
Housing providers, facilities teams and property managers book us too. Several sites can be quoted together.
In hotels, rooms out of use cost money, so we plan the work room by room. We’ve worked in hotels as well as homes and businesses.
Surface by surface
Copings and trims
Copings expand and contract through the day, so a flexible sealant suits them best year round.
Cladding and façade panels
Cladding and façade panels are usually separated by sealed joints. We reseal them with a sealant suited to the panel material.
Looking after it afterwards
No joint lasts for ever, but care makes a real difference. Our tips:
- Keep movement joints as flexible joints, not mortar
- Avoid pressure-washing directly into sealant joints
- Fix overflowing gutters above sealed joints
- Point out the joints to other trades
Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal before water has had years to get in.