Surrey · England
Pirbright External Mastic
We cover Pirbright for sealing brickwork movement joints, render, cladding and façade joints. Old sealant removed completely, joints prepared properly.
- Gaps where render, brick and frames meet
- Leaking joints around cladding and façade panels
- Movement joints with cracked, split or missing sealant
What the job involves on each surface
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.
Brickwork movement joints
Brick walls have vertical movement joints to absorb expansion. They’re resealed over backing rod with a low-modulus sealant in a colour to suit the brick.
External mastic in Pirbright
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We take the old material out and do it properly. We’re often asked to deal with weeds or debris growing in open joints and cracked joints where brick meets render or frames, on copings & trims, brickwork movement joints and joints between brick and frames.
Outside joints can only be sealed when they’re dry, so work in Pirbright is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
A one-year guarantee comes with the work, just as it does everywhere we cover.

- Where
- Pirbright (GU24)
- Wider area
- Surrey
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What sealant work can’t fix
Sealant is not the answer to every problem, and we’d rather say so up front. It won’t solve:
- Movement that’s more than a sealant joint can take
- Adding movement joints to masonry that has none
- Cracks in the bricks or render themselves, away from the joints
If you’re not sure, just phone 0345 464 0079 or send us an email and we will give you a straight answer before you book.
Where we work in Pirbright
- Concrete & block
- Brickwork movement joints
- Joints between brick and frames
- Copings & trims
- Façade panels
- Render & cladding joints
Pirbright questions
Is Pirbright within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you do external mastic in Pirbright?
Yes, Pirbright is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or drop us an email and let us know what needs doing.
What does external mastic cost?
Every job is different, so each one gets its own quote. For a quick quote, call 0345 464 0079 or email us and tell us what needs doing and where.
Can landlords and businesses book you?
Yes, often. We can quote for several properties at once, and between tenancies is a good time for the work.
Do you seal joints where cladding meets other materials?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. The colour is chosen to suit.
Is there any odour?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Is there a guarantee?
Yes. Every job comes with our one-year guarantee.
What information do you need?
Only a few details: the address or postcode, what’s wrong and any access issues. Then phone 0345 464 0079 or drop us an email.
Pirbright buildings and the weather
Historic houses like Wanborough Manor (about 4.4 miles south) are a reminder that the area around Pirbright has older buildings as well as new. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material. 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.
In the older streets around Church of St Michael and All Angels, the joints between older walls, newer extensions and the roofline need a sealant that can move. If you look after a building such as Knowl Hill School, its movement joints, gutters and trims need looking after like any other building’s.
Pirbright is about 3 miles south-west of Woking, in Surrey. If you need external mastic in Pirbright, it’s easy to get a quote: please ring 0345 464 0079 or send us an email. We’re based in Crawley and cover Surrey. Our Surrey coverage runs to 395 places, and Pirbright is one of them. Our Reading page covers work nearby, about 18 miles away.
Jobs for external mastic in GU24 is quoted and booked the same way as anywhere else. External mastic is available to properties on Cowbridge Meadow, Gibb's Acre and Church Lane. Main roads around Pirbright include the A324, so getting to you is simple. We also cover the places around Pirbright: Stanford Common (1 mile south), Worplesdon (2 miles south-east), Willey Green (3 miles south), Fairlands (3 miles south-east) and Normandy (3 miles south). We also work in nearby towns such as Guildford (5 miles south-east), Woking (3 miles north-east), Camberley (5 miles north-west), Farnham (9 miles south-west), Egham (10 miles north-east) and Walton-on-Thames (12 miles north-east).
Near you in Pirbright
Locally, jobs take us to homes and businesses close to White Hart pub, Pirbright Village Primary School and The Winston Churchill School A Specialist Sports College, among other places. Pirbright’s nearest station is Brookwood station, roughly 0.8 miles north-east. A little further out are The Museum of The National Rifle Association (1.3 miles north) and Brookwood Hospital (1.9 miles north-east). Green spaces nearby include Brookwood Lye.
Landlord and commercial work in Pirbright
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we’ll give you a quote.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
Signs you need external mastic in Pirbright
Many joints fail because they were sealed too deep or with nothing behind them. If the sealant sticks to the back as well as the sides, it can’t stretch and rips as the joint opens.
Signs it’s time to call us include:
- Failed sealant between panels on a façade
- Weathered mastic that no longer stretches
- Sealant that has lost its bond to the brick or render
- Moss and dirt in joints with no sealant left
Rented homes near Brookwood station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets.
What your quote should include
- When the joint can take water or movement
- How the joint is cleaned and prepared
- What product goes in the joint
- Are they insured?
Other services in Pirbright
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Check the sealant is paintable before painting near it
- Never let anyone fill a movement joint with mortar
- Check external joints each spring
- Tell anyone working on the walls about the movement joints
Give the sealant the cure time we tell you before anything rubs against it. Most exterior sealants skin fast but take longer to cure right through.
Act while the splits are small. At that stage it’s a simple cut out and reseal before water has had years to get in.
What happens on the day
On the day, we start by going over the job with you, so there are no surprises. We protect the surfaces around the joints before any work begins. Most jobs take anything from a few hours to several days, depending on the building. For a village or hamlet like Pirbright, the journey is planned in advance: let us know about lanes, gates and parking. 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.
- 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.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- We gun in a flexible exterior sealant in a colour that suits the wall and tool it neatly.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Move anything stored near the joints
- Mention any parking rules near the property
How to get a quote
We quote each job on its own, so start by telling us what you need. Simply ring 0345 464 0079 or send us an email and describe the job, and pictures are welcome.
Advice
Should I try it myself first?
What a professional job adds is preparation and the right product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
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.
