Surrey · England
External & façade joints in Rowly, Surrey
Professional external mastic in and around Rowly, with old sealant always removed completely.
- Failed seals between different materials
- Old sealant gone brittle and cracked
- Moss and dirt in joints with no sealant left
How we handle external mastic in Rowly
Movement joints let brickwork, render and cladding expand and shrink without cracking. The sealant in it has to stretch and squeeze for years, and when it fails, the wall takes the strain and water finds a way in. We work on joints between brick and frames, brickwork movement joints and façade panels, and the jobs we see most are sealant pulling away from one side of the joint and plants rooting in failed movement joints.
Around Rowly, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
All our work is covered by our 12-month guarantee, wherever you are in Surrey.
- Where
- Rowly (GU6, GU5)
- Region
- Surrey
- Guarantee
- One year on every job
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance that we can handle for you.
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Avoid pressure-washing directly into sealant joints
- Ask before painting over external sealant
- Keep movement joints as flexible joints, not mortar
- Clear growth from the base of walls and joints
Look over the joints once a year, ideally after winter. Splits, gaps at the edges or plants in the joint are early warning signs.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal.
Nearby places to Rowly
Also in Rowly
FAQs for Rowly
I let a flat near Chilworth station. Can you help?
Yes, rental work is part of what we do. Just call 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
Do you cover Rowly for external mastic?
Yes. We work across London and the South East, and Rowly is part of that. You can call 0345 464 0079 or email us and tell us what needs doing.
Can you seal joints between render and window frames?
Yes. Where different materials meet is one of the most common joints we seal. The sealant is chosen to bond to both sides, primed where needed.
Will the old sealant be removed?
Yes. We cut out all the old sealant and clean the joint before resealing.
Do you have insurance?
Yes. We’re fully insured.
What’s an expansion joint in brickwork?
Walls move with heat, cold and moisture, so long walls have planned gaps to take that movement. The gap is sealed with a flexible sealant over backing rod.
Is it messy?
Very little: the area around the joints is protected first, and we clear up the old sealant and our materials before we leave.
What should I tell you?
Only a few details: the address or postcode, what’s wrong and any access issues. After that, simply call 0345 464 0079 or send us an email.
How the job changes by surface
Render joints
Render is weaker at the surface than brick, so a low-modulus sealant is kinder to the joint edges. Priming is done where the sealant calls for it.
Copings and trims
Copings expand and contract through the day, so the joints need a sealant that stays flexible in all weathers.
The process
The work is kept neat and contained to the joints we’re treating, so you can get on with your day. The job usually takes a few hours for a handful of joints, longer for a whole elevation, and we tell you how long to leave it before we go. Somewhere like Rowly needs a little journey planning: 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 start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Clear the area around the work
- Keep children and pets away from the work area
- Tell us about any water getting in
Get a quote
Call for a quick quote, or send an email if you’d rather. Describe what needs sealing and we’ll talk you through the work.
Advice
Do you need external mastic in Rowly?
The wrong product in a moving joint is a classic cause. A stiff, general-purpose sealant can’t cope with a joint that moves a lot, and it tears off the sides.
Most people get in touch after spotting something like this:
- Hard, crazed mastic that has stopped moving
- Moss and dirt in joints with no sealant left
- Failed sealant between panels on a façade
- Joints pointed up with cement by mistake
Rented homes near Chilworth 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
- Whether they seal over old material or remove it
- Is VAT in the price?
- What product goes in the joint
- Whether they’re fully insured
Walls and rooflines in Rowly
Historic houses like Chilworth Manor (about 4.3 miles north) are a reminder that the area around Rowly 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, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Schools such as Glebelands School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Historic houses such as Chilworth Manor, about 4.3 miles north, show how far back building around Rowly goes.
Rowly is about 7 miles south-east of Guildford, in Surrey. For external mastic in and around Rowly, please ring 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Surrey. Across Surrey, we cover 395 places, Rowly among them. For nearby work, see our Crawley page, about 14 miles away.
Here we cover the GU6 and GU5 postcode area for external mastic. If you need external mastic at a property on Guildford Road, Strathavon Close and Smithwood Avenue or a nearby road, we can help. Other places close to Rowly include Stroud Common (1 mile north), Elmbridge Village (1 mile south), Grafham (2 miles west), Shamley Green (2 miles north-west) and Birtley Green (2 miles north-west). Within a short drive, we also cover Guildford (7 miles north-west), Woking (11 miles north), Camberley (15 miles north-west), Horley (15 miles east), Farnham (13 miles west) and Reigate (14 miles east).
Near you in Rowly
Around Rowly, our work takes us to homes and buildings near Cucknell's Wood. The nearest railway station is Chilworth station, about 3.9 miles north. Other landmarks nearby include Milford Hospital (5.2 miles west). Green spaces nearby include Lower Lake and St Martha's Hill and Colyer's Hanger.
DIY versus a professional finish
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
What happens if it’s left?
Sealing over the top of old mastic does not hold for long. The new layer can’t bond properly to old, weathered material, so we always take the old sealant out. Older cottages and farmhouses around Rowly 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 look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Why us?
- A 12-month guarantee on all work
- Anti-fungal sanitary silicone in wet areas
- We never seal over old sealant
- A sealant colour to suit the surroundings
Take a look at what affects the cost and our reviews.