West Berkshire · England
External Mastic in Stratfield Saye
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in Stratfield Saye. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Hard, crazed mastic that has stopped moving
- Leaking joints around cladding and façade panels
- Movement joints with cracked, split or missing sealant
For landlords and businesses
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. Several properties can go on one quote.
External mastic for homes and businesses in Stratfield Saye
As ARBOMaster approved applicators, we choose exterior sealants to suit the joint and the surfaces. Some surfaces need a primer before sealing and we use one wherever it does. If you’re dealing with failed seals between different materials and joints with sealant missing in places, we can put it right.
Around Stratfield Saye, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water normally gets in.
We stand behind the work with a 12-month guarantee.
- Place
- Stratfield Saye (RG7)
- Region
- West Berkshire
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What external mastic looks like in Stratfield Saye
Historic houses like Stratfield Saye House (about 1.1 miles east) are a reminder that the area around Stratfield Saye 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. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
Rented homes near Mortimer station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
Stratfield Saye is about 5 miles east of Tadley, in West Berkshire. From the centre of Stratfield Saye to the outskirts, external mastic is available for homes and businesses alike. Across West Berkshire, we cover 155 places, Stratfield Saye among them. Reading is on our list too, around 7 miles away.
Every address in RG7 is within our area for external mastic, from the main roads to the quietest streets. Local streets include Green Lane, Fair Oak Lane and New Street, and we cover them all. Close by, we work in West End Green (1 mile west), Fair Cross (1 mile north-east), Spanish Green (2 miles south), Stratfield Mortimer (2 miles north-west) and Bramley Green (2 miles south-west). We also work in nearby towns such as Newbury (13 miles west), Thatcham (11 miles west), Burghfield Common (4 miles north-west), Speenhamland (14 miles west), Spencers Wood (4 miles north-east) and Calcot (6 miles north).
What’s near Stratfield Saye
Stratfield Saye’s nearest station is Mortimer station, roughly 1.6 miles north-west of the centre. Other landmarks nearby include Calleva Museum (3.3 miles west) and Beaumys Castle (2.4 miles north-east). Green spaces nearby include The Marshes Local Nature Reserve.
Why it’s worth doing now in Stratfield Saye
Running new sealant over the old bead rarely lasts. New sealant doesn’t bond well to old, weathered sealant, so the old joint is cut out fully first. In a small place like Stratfield Saye, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Leaving a failed joint usually makes the job bigger, not smaller, as water and mould keep getting in. If you are unsure, ring 0345 464 0079 or email us for an honest opinion and a quote.
What you get with us
- ARBOMaster approved applicator
- Quality sealants from Arbo and Everbuild
- Domestic, commercial and hotel work
- Colour picked to suit the job
Read what affects the cost and customer reviews.
What we are called out for in Stratfield Saye
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, and it tears off the sides.
The problems people usually mention when they call include:
- Joints pointed up with cement by mistake
- Moss and dirt in joints with no sealant left
- Joints with sealant missing in places
- Water getting into walls through failed joints
For an older house near a landmark such as Church of St. Mary the Virgin, an extension built onto an older house moves differently, and the joint between them takes the strain.
Questions to ask before you book
- Whether you can choose the colour
- Who does the work, and how experienced they are
- Whether all the old sealant comes out first
- What product goes in the joint
When something else is needed
It helps to know what we can’t do too:
- Render that’s blown, hollow or coming away
- Walls that need new movement joints cut into them
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
If in doubt, call 0345 464 0079 or email us and we’ll say what we think.
Surfaces we seal
- Brickwork movement joints
- Concrete & block
- Copings & trims
- Render & cladding joints
- Joints between brick and frames
- Façade panels
How the visit works
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours to a few days, depending on the length of joint and the access in most cases. Somewhere like Stratfield Saye needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- We clean both faces of the joint and prime them where the product calls for it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Mention any parking rules near the property
- Move anything stored near the joints
- Let us know about stairs, lifts or work at height
Get a quote
If you are in Stratfield Saye 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 the job changes by surface
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. The movement joint takes that up, so its sealant has to stay flexible.
Cladding and façade panels
If the façade has a specified sealant, that’s what we use. Tell us what the building has when you get in touch.
Questions from Stratfield Saye
Do you cover smaller places like Stratfield Saye?
Yes, we do. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Do you cover Stratfield Saye for external mastic?
Yes, Stratfield Saye is within the area we cover. We work across London and the South East. You can phone 0345 464 0079 or email us and let us know what needs doing.
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. A yearly look will tell you when they need doing. Every job carries our one-year guarantee.
Where is Mr Mastic based?
We are based in Crawley, and we work across South East England, London and Scotland.
Do you remove the old sealant?
Yes, always, and completely. New silicone doesn’t stick to old silicone, so the joint is cleaned back first.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Movement, water and weather all affect the choice, and we will tell you what we’re using.
Can you match the colour of my brickwork?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin.
How much does external mastic cost in Stratfield Saye?
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. We agree the price before any work begins.
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DIY versus a professional finish
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.