Surrey · England
Frimley External Mastic
We cover Frimley for sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Failed sealant between panels on a façade
- Joints with sealant missing in places
- Cracked joints where brick meets render or frames
External mastic in Frimley
Joints in render and cladding are easy to overlook until a damp patch appears. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product in a colour to suit. Common call-outs are for brick movement joints where the sealant has split and weeds or debris growing in open joints, on joints between brick and frames, render & cladding joints and brickwork movement joints.
In a town like Frimley, older houses with traditional gutters sit alongside newer estates with uPVC rooflines and rendered walls. All of those joints move, so they need a flexible sealant rather than a rigid filler.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Place
- Frimley (GU16, GU15)
- Region
- Surrey
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Quotes for external mastic in Frimley
We quote each job individually. This is what makes a difference:
- The type of sealant required
- How easy the joints are to reach
- The size of the job
- Whether old sealant or filler has to be cut out
Combining jobs into one visit is normally more efficient than separate visits, so it’s worth mentioning everything you’d like done. We will send you a clear quote for the lot.
Asking for a quote
When you call or email, it’s useful to know:
- Roughly how big the job is
- Where the job is, and your postcode
- Photos by email, if that is easy
- How we’d reach the joints
We do not publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, phone 0345 464 0079 or email us.
How the visit works
Once we are on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of joints, longer for a whole elevation. Parking in a town like Frimley is generally straightforward, but tell us if there’s a driveway or any restrictions, and mention if the work is upstairs, in a flat or high on the outside.
- 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.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Tell us about any water getting in
- Clear the area around the work
- Where the joints are inside, avoid wetting them before we arrive
Getting a quote
Want a quote for external mastic? Please call 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and send you a clear quote before any work starts.
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DIY sealant or a professional job?
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Keeping the joints in good condition
Looking after new joints is easy:
- Wash walls gently around the sealant
- Walk round the building once a year and look at the joints
- Keep movement joints as flexible joints, not mortar
- Have failed joints looked at early
Don’t paint over the new sealant unless we have said the product is paintable. Paint can crack on a flexible joint and spoil the finish.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick.
What else we do in Frimley
Why deal with it now?
Water gets in through a failed movement joint and can run behind render or cladding. Dealing with it early keeps the repair to the joint, rather than the wall around it. Draughts from a gap round a frame, damp under a sill or water behind a bath panel all start small, and they’re far easier to fix early.
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first and agree the price before starting.
Why choose Mr Mastic in Frimley
- 180+ five-star Google reviews
- Old sealant always removed completely
- 12-month guarantee on every job
- More than 20 years in sealant work
See our cost guide or customer reviews.
When something else is needed
In fairness, some problems need a different trade:
- Rising or penetrating damp from elsewhere in the wall
- Loose or hollow render, which needs re-rendering
- Cracked brickwork or render that needs a builder or plasterer
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly before booking.
Where we work in Frimley
- Façade panels
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Joints between brick and frames
- Copings & trims
What the job involves on each surface
Joints between dissimilar materials
Joints where frames, sills or panels meet the wall are common leak points. The old joint is removed and a sealant that bonds to both sides goes in.
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible.
Frimley buildings and the weather
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
If you let a flat or house near Frimley station, outside joints that have cracked can let damp into a rental, so check them between lets. Schools such as Lakeside Primary School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing. If you live in an older home near St. Peter's Church, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Frimley is about 1 mile south of Camberley, in Surrey. Frimley gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. We cover 395 towns and villages across Surrey. There’s also a page for Reading, roughly 14 miles from Frimley.
Postcode districts we cover here for external mastic: GU16 and GU15. If you need external mastic at a property on Church Road, Frimley High Street and Station Road or a nearby road, we can help. You will find Frimley on the A325 and B311, so it’s easy for us to get to. If you’re just outside Frimley, we cover Frimley Green (1 mile south), Deepcut (1 mile east), Camberley (1 mile north), Watchmoor (2 miles north-west) and York Town (2 miles north-west). Within a short drive, we also cover Guildford (8 miles south-east), Woking (7 miles east), Farnham (8 miles south), Egham (11 miles north-east), Walton-on-Thames (15 miles east) and Staines-upon-Thames (13 miles north-east).
Landmarks near Frimley
We work in homes and buildings around Tomlinscote School, The White Hart Public House and Frimley Lodge Park, among other places. The nearest railway station is Frimley station, roughly 0.7 miles west. Nearby you will also find Frimley Park Hospital (0.6 miles north-west) and Surrey Heath Museum (1.9 miles north). The countryside around Frimley includes Danger Hill and Wildmoor Heath.
Your questions about external mastic in Frimley
Is external mastic in Frimley guaranteed?
All our work, in Frimley and everywhere else, comes with a 12-month guarantee. We’re fully insured, and an ARBOMaster approved applicator.
I let a flat near Frimley station. Can you help?
Yes, landlords and agents are among the people we work for. You can call 0345 464 0079 or email us with the details for a clear quote.
Will the old sealant be removed?
Yes, every time. New sealant will not bond properly to old, so any old material comes out before anything new goes in.
What is a movement joint?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
How do I get a quote for external mastic in Frimley?
Size, access and the old material all affect the cost. Ask us for a quote.
Do you hold any approvals?
Yes. We are an ARBOMaster approved applicator.
What sealant do you use?
Products from Arbo and Everbuild, among others, picked for each joint. We will tell you what we’re using and why.
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.