West Berkshire · England
External Mastic in Newtown Common
Professional external mastic in and around Newtown Common, with old sealant always removed completely.
- Plants rooting in failed movement joints
- Panel joints letting water in
- Old sealant gone brittle and cracked
Newtown Common questions
Do you work for landlords with property near Newbury station?
Yes, we work for landlords and agents. You can call 0345 464 0079 or email us with the address and a few details, and we will give you a fixed price before we start.
Can you do external mastic in Newtown Common?
Yes, Newtown Common is within the area we cover. Our work covers London and the South East. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
What sealant do you use?
Each joint gets the product that suits it. Movement, water and weather all affect the choice, and we’ll explain our choice.
Is it OK to fill a movement joint with cement?
No. Mortar locks the joint solid, so the movement cracks the wall elsewhere. It needs a flexible sealant over backing rod.
How long does the job take?
As a guide, most jobs take a few hours for a handful of joints, longer for a whole elevation. Larger jobs naturally take longer, and we will say how long yours will take.
How much does external mastic cost in Newtown Common?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before any work starts.
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.
What colours does the sealant come in?
The sealant colour is picked to suit the wall so the joint blends in. Exterior sealants come in a good range of colours.
External mastic for homes and businesses in Newtown Common
We’re ARBOMaster approved applicators, and each external joint gets a sealant suited to it. Some surfaces need a primer before sealing, and we don’t skip that step. Typical jobs include plants rooting in failed movement joints and gaps where render, brick and frames meet, across concrete & block, copings & trims and brickwork movement joints.
Older homes in small places like Newtown Common may be stone, brick or timber-framed, often with later extensions. The joints where those materials meet are the weak points, and they need the right sealant at the right depth.
All our work is covered by a one-year guarantee, wherever you are in West Berkshire.
- Location
- Newtown Common (RG20)
- Region
- West Berkshire
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
External mastic in Newtown Common: local notes
Historic houses like Highclere Castle (about 3.1 miles south-west) are a reminder that the area around Newtown Common 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. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Schools such as Horris Hill School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s. Rented homes near Newbury station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. If you live in an older home near Church of St Mary and St John the Baptist, old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Newtown Common is about 2 miles south of Newbury, in West Berkshire. We provide external mastic to homeowners, landlords and businesses in Newtown Common and the surrounding area. Our area takes in 155 places across West Berkshire, from the larger towns to small villages. Reading is on our list too, about 16 miles from Newtown Common.
Work in RG20 works the same way as everywhere else we cover. Close by, we work in Burghclere Common (1 mile south), Earlstone Common (1 mile south), Sandleford (1 mile north-east), Wash Common (1 mile north-west) and Wash Water (1 mile west). We also work in nearby towns such as Thatcham (4 miles north-east), Burghfield Common (12 miles east), Speenhamland (3 miles north), Hungerford (9 miles west), Calcot (13 miles north-east) and Lambourn (13 miles north-west).
Near you in Newtown Common
Around Newtown Common, our work takes us to homes and buildings near Park House School and Sandleford Priory, among other places. The nearest railway station is Newbury station, roughly 2.2 miles north. Well-known places in the area include Old Chapel Textile Centre (2.1 miles east) and West Berkshire Community Hospital (3.1 miles north-east). Not far away are Beacon Hill and Audrey's Meadow.
Why it’s worth doing now in Newtown Common
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That protects surfaces like brick, render and concrete. A stiffer product can damage the joint edge as it fails. Older cottages and farmhouses around Newtown Common can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Rather than a set price list, we price the job in front of us: the amount of work, the old material and the access. You will know the price before we begin.
Why book with us
- Every job guaranteed for a year
- Anti-fungal silicone where joints get wet
- Old sealant always removed completely
- Arbo and Everbuild products
Read what affects the cost or our reviews.
What affects the quote in Newtown Common
We quote each job individually. These are the things that affect it:
- How many areas need sealing
- How much there is to do
- The old material and how stubborn it is
- How easy the joints are to reach
Homes and businesses are quoted the same way: the amount of work, the access and the products needed. Call for a quick quote and we’ll go through it with you.
Asking for a quote
When you call or email, these details help:
- Any previous sealing or DIY work
- The problem you’ve noticed
- Any access issues, like height or stairs
- The rough size of the job
There’s no standard price list. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or email us.
What the job involves on each surface
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. We reseal them with a low-modulus sealant over backing rod.
Copings and trims
Joints in copings, parapets and trims are exposed to the worst of the weather. Each is resealed with a weatherproof, flexible sealant.
Landlord and commercial work in Newtown Common
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Resealing at the right time is simple maintenance.
DIY sealant or a professional job?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Too much sealant is as bad as too little. A thick, smeared bead looks untidy and does not move well, and the joint depth matters as much as the finish.
Places near Newtown Common
More services for Newtown Common
What we do, step by step
On the day, there’s very little for you to do. Show us the job and we will take it from there. The work itself takes a few hours for a handful of joints, longer for a whole elevation from start to finish. Somewhere as small as Newtown Common, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by walking round the building and agreeing the joints and the access.
- We cut out the old mastic and rake out anything in the joint.
- Joint faces are cleaned back and primed if the sealant needs 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 about stairs, lifts or work at height
- On commercial sites, let us know about site rules
- Clear the area around the work
How to get a quote
Need a quote? Please call 0345 464 0079 or email us with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
What sealant work cannot fix
We won’t take on work that will not last, so these are the limits:
- Cracks in the bricks or render themselves, away from the joints
- Subsidence or other structural problems
- Render that is blown, hollow or coming away
If you are not sure, just ring 0345 464 0079 or drop us an email and we’ll give you a straight answer.
What we seal
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Concrete & block
- Copings & trims
- Brickwork movement joints