Surrey · England
West Byfleet External Mastic
Sealing brickwork movement joints, render, cladding and façade joints for householders, landlords and businesses in West Byfleet. Fully insured, ARBOMaster approved and guaranteed for a year.
- Water getting into walls through failed joints
- Weeds or debris growing in open joints
- Brick movement joints where the sealant has split
About our external mastic in West Byfleet
External mastic is a job where short cuts show quickly. New sealant over old, joints packed with mortar and beads with no backing all tend to fail early. We strip the joint back and start again. Common call-outs are for moss and dirt in joints with no sealant left and movement joints filled with mortar instead of sealant, on render & cladding joints, joints between brick and frames and façade panels.
Homes around West Byfleet range from older cottages to newer houses, with walls and rooflines of every type. Older gutters and trims need their joints resealed; newer brick and render need their movement joints kept sound.
All our work is covered by our 12-month guarantee, wherever you are in Surrey.
- Where
- West Byfleet (KT14)
- Region
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. All the old material has to come out first.
Walls and rooflines in West Byfleet
With historic houses such as Byfleet Manor (about 1.8 miles east) nearby, there’s older building stock in the area around West Byfleet as well as newer homes. 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, 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 John the Baptist, the joints between older walls, newer extensions and the roofline need a sealant that can move. For landlords with property near West Byfleet station, failed wall and movement joints let damp in, so they’re worth checking between tenancies.
West Byfleet is about 3 miles north-east of Woking, in Surrey. Wherever you are in the KT14 postcode area, we can carry out external mastic at your property. Our Surrey coverage runs to 395 places, West Byfleet among them. For nearby work, see our London page.
Here we cover the KT14 postcode area for external mastic. Streets in the area include Station Road, Station Approach and The Close, all of which we cover. If you’re just outside West Byfleet, we cover Woodham (1 mile north-west), Pyrford (1 mile south-west), Sheerwater (1 mile west), Pyrford Village (2 miles south) and Row Town (2 miles north). Larger places within reach include Guildford (7 miles south-west), Woking (3 miles south-west), Camberley (10 miles west), Epsom (10 miles east), Farnham (15 miles south-west) and Ewell (11 miles east).
Near you in West Byfleet
Locally, jobs take us to homes and businesses close to Fullbrook School, The Bishop David Brown School and Manor Farm. West Byfleet has its own railway station: West Byfleet station. A little further out are The Hockey Museum (2.6 miles south-west) and The Peacocks (2.7 miles south-west). Open spaces near West Byfleet include St Ann's Hill and Boldermere Lake.
Honest limits
We won’t take on work that will not last, so here’s what sealant can’t put right:
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Walls that need new movement joints cut into them
- Cracked brickwork or render that needs a builder or plasterer
If in doubt, ring 0345 464 0079 or email us and we will say what we think.
Surfaces we seal
- Façade panels
- Render & cladding joints
- Concrete & block
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
Surface by surface
Copings and trims
Coping and trim joints face rain and sun head on. Each is resealed with a weatherproof, flexible sealant.
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. We prime where the product needs it.
FAQs for West Byfleet
Do you cover West Byfleet for external mastic?
Yes. Our work covers London and the South East, and West Byfleet is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we will send you a clear quote.
Can you help a landlord with a rental near West Byfleet station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear price.
What should I tell you?
Where the job is, what the problem is and roughly how big it is. If you can, email a few pictures.
Do I have to be there?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Where is Mr Mastic based?
Mr Mastic is based in Crawley. We cover West Byfleet and the rest of Surrey.
Can you quote for more than one area?
Yes, and it often makes sense. Combining jobs makes good use of the visit, so mention them when you ask for a quote.
Will it make a mess?
Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.
Is there any odour?
Some sealants have a smell while they cure. Opening a window helps.
Aftercare tips
Aftercare is simple:
- Fix overflowing gutters above sealed joints
- Have failed joints looked at early
- Ask before painting over external sealant
- Never let anyone fill a movement joint with mortar
Look over the joints once a year, ideally after winter. Watch for splits, edges coming away or growth in the joint.
Leave a failed movement joint and water keeps getting into the wall. That can lead to damp patches, staining and frost damage, all bigger jobs than a reseal.
Landlords, agents and businesses in West Byfleet
We work for landlords and agents as well as homeowners. Sealant work between tenants keeps a property looking cared for before the next move-in.
We regularly work with letting and managing agents. Send the address, what’s needed and the access arrangements and we will give you a quote.
How the visit works
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. It usually takes a few hours to a few days, depending on the length of joint and the access. Parking around West Byfleet is usually easier than in a town centre, but mention any lanes, gates or long drives. If the job is outside, tell us about side access and how high the joints are.
- Each joint is checked and the colour of the new sealant agreed.
- Failed sealant is removed back to clean, sound faces.
- 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.
Preparing for the visit
- Try not to wet indoor joints just before the visit
- For business premises, tell us about site rules or sign-in
- Mention any tricky access
Ask for a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or send us an email.
Advice
Places near West Byfleet
More services for West Byfleet
What we are called out for in West Byfleet
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
Keep an eye out for these signs:
- Rigid filler in a joint that should flex
- Joints with sealant missing in places
- Damp patches traced to an open external joint
- Moss and dirt in joints with no sealant left
Schools such as The Marist Catholic Primary School are buildings too, and its movement joints, gutters and trims need looking after like any other building’s.
What to look for in a quote
- How much experience the applicator has
- How hidden problems are handled
- The length of the guarantee
- Whether all the old sealant comes out first