West Berkshire · England
External Mastic in Frilsham
External mastic for Frilsham, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Failed seals between different materials
- Brick movement joints where the sealant has split
- Rain getting behind render or cladding at a joint
External mastic in Frilsham, done properly
A movement joint is a deliberate break that lets a wall expand and contract. Its sealant has to flex with the building, season after season, so once it splits or hardens, the joint stops working and water gets in. If you are dealing with gaps where render, brick and frames meet and plants rooting in failed movement joints, we can put it right.
Outside joints can only be sealed when they’re dry, so work in Frilsham is booked around the forecast. Tell us about access to all sides of the building, including outbuildings and garages.
Our work is backed for twelve months.
- Where
- Frilsham (RG18)
- Region
- West Berkshire
- Guarantee
- A year, on every job
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Avoid pressure-washing directly into sealant joints
- Fix overflowing gutters above sealed joints
- Ask before painting over external sealant
- Point out the joints to other trades
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
How the visit works
Once we are on site, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take anything from a few hours to several days, depending on the building. Somewhere like Frilsham needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- Old sealant and any debris are cut and raked out.
- We clean both faces of the joint and prime them where the product calls for it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
How to prepare
- Move anything stored near the joints
- Let us know about parking restrictions
- Let us know if you’ve seen damp or leaks
Ask for a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we will explain what’s involved.
Advice
Landlord and commercial work in Frilsham
We work for letting agents and landlords as well as householders. Sealant work between tenants keeps a property looking cared for.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
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 the sealant in it must stay soft and stretchy.
Render joints
Water behind render can lead to blown patches. A sound joint keeps the render dry behind and helps it last.
What external mastic looks like in Frilsham
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 Midgham station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. Managing a site like Yattendon C.E. Primary School? Then its movement joints, gutters and trims need looking after like any other building’s.
Frilsham is about 4 miles north-east of Thatcham, in West Berkshire. For external mastic in and around Frilsham, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We cover West Berkshire from our Crawley base. 155 places in West Berkshire are on our list, from the larger towns to small villages. Our Reading page covers work nearby (10 miles or so).
Work in RG18 works the same way as everywhere else we cover. That includes homes and businesses on Beechfield Lane, Hatchets Lane and Chapel Lane and the roads around them. Close by, we work in Yattendon (1 mile north-east), Wellhouse (2 miles west), Little Hungerford (2 miles west), Hampstead Norreys (2 miles north-west) and Oare (2 miles west). Within a short drive, we also cover Newbury (6 miles south-west), Thatcham (4 miles south-west), Burghfield Common (8 miles south-east), Speenhamland (6 miles south-west), Hungerford (13 miles west) and Spencers Wood (11 miles east).
Near you in Frilsham
We work in homes and buildings around The Pot Kiln pub and the streets around them. For rail, the closest station is Midgham station, about 4.3 miles south. Nearby you will also find West Berkshire Community Hospital (4.7 miles south-west) and Yattendon Castle (1 mile north). For a walk, there’s Nature Discovery Centre.
Other services in Frilsham
What we’re called out for in Frilsham
If plants are growing out of a joint, the sealant has usually failed or was never there. Dirt and roots then trap moisture in the joint.
Keep an eye out for these signs:
- Joints pointed up with cement by mistake
- Movement joints with cracked, split or missing sealant
- Old sealant gone brittle and cracked
- Cracked joints where brick meets render or frames
In the older streets around Church of St Frideswide, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Comparing quotes
- Whether all the old sealant comes out first
- How hidden problems are handled
- What the cure time is
- How long the guarantee is
Leave it or put it right?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. Too stiff a sealant can pull at the edges and break them. In a small place like Frilsham, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
What it costs depends on the size of the job, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
Why choose Mr Mastic in Frilsham
- A sealant colour to suit the surroundings
- Anti-fungal silicone where joints get wet
- ARBOMaster approved applicator
- White, clear, grey or coloured to suit, where the product allows
Read our cost guide and our reviews.
Questions from Frilsham
Is Frilsham in your area for external mastic?
Yes. Our work covers London and the South East, and Frilsham is part of that. You can call 0345 464 0079 or send us an email and let us know what needs doing, and we’ll give you a clear quote.
Can you help a landlord with a rental near Midgham station?
Yes, rental work is part of what we do. You can phone 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before any work starts.
Is it OK to fill a movement joint with cement?
No. Mortar locks the joint solid, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.
How do I get a quote for external mastic in Frilsham?
Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or email us and tell us what needs doing and where.
Do the sealants smell?
There can be a smell while the sealant cures, but it fades. Opening a window helps.
How long does the job take?
It depends on the size of the job, but as a guide it takes a few hours to a few days, depending on the length of joint and the access. We will tell you when we quote.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
How do you reach high-level joints?
That depends on the building and the joints. We work on joints that can be reached safely. Tell us about the building and we’ll confirm what access is needed.
Can I do it myself?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so tell us about it when you ask for a quote.
A careful DIYer can reseal a simple joint, 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.