Surrey · England
External & façade joints in Woodham, Surrey
External mastic for Woodham and the surrounding area: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Old sealant gone brittle and cracked
- Movement joints with cracked, split or missing sealant
- Sealant that has lost its bond to the brick or render
External mastic in Woodham
Getting the depth right is half the job. Closed-cell backing rod sets the depth and stops the sealant sticking to the back, leaving it bonded to two faces so it can move with the wall. Common call-outs are for joints where the bead has come unstuck and plants rooting in failed movement joints, across brickwork movement joints, render & cladding joints and joints between brick and frames.
Homes around Woodham 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.
Every job comes with our one-year guarantee.
- Where
- Woodham (KT15, GU21)
- Region
- Surrey
- Guarantee
- A year, on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
How it works
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes anything from a few hours to several days, depending on the building. In a smaller place like Woodham, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- First we look over the joints with you, agree which to renew and talk through access.
- Old sealant and any debris are cut and raked out.
- The joint faces are cleaned and primed where the sealant needs 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.
Getting ready for the visit
- For business premises, tell us about site rules or sign-in
- Clear the area around the work
- Try not to wet indoor joints just before the visit
Ask for a quote
Asking for a quote is easy: let us know the job and the location. A few pictures by email make the job easier to understand, and we’ll take it from there.
Read more
Why it’s worth doing now in Woodham
Mortar or ordinary filler might look like a quick way to close an open joint, but it stops the joint moving. The wall then cracks somewhere else. The correct repair is a flexible sealant with the right backing. In a smaller place like Woodham, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
The cost depends on the size of the job, how much old material has to come out and access to the work. We give a clear quote before work begins.
Why choose Mr Mastic in Woodham
- Fully insured
- Trusted Arbo and Everbuild sealants
- 180+ five-star Google reviews
- More than 20 years in sealant work
Read our cost guide and customer reviews.
For landlords and businesses
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
We also work for property managers and facilities teams. We can quote a run of properties together, and we are fully insured.
Quotes for external mastic in Woodham
For a quick quote, just ask. The main things that affect it are:
- Working hours on commercial sites
- Whether the work is at height
- The size of the job
- The number of rooms or windows
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. The price is agreed before we begin.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- How many joints, rooms or windows are involved
- Photos by email, if that’s easy
- How we’d reach the joints
- If it’s domestic, commercial or a hotel
We do not publish a price list, as no two jobs are quite the same. Instead, we give you a clear quote for your job. To arrange one, phone 0345 464 0079 or email us.
Your questions about external mastic in Woodham
I let a flat near West Byfleet station. Can you help?
Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before any work starts.
Can you do external mastic in Woodham?
Yes. We work across London and the South East, and Woodham is part of that. You can phone 0345 464 0079 or drop us an email and tell us what needs doing, and we will give you a clear price.
Is it worth trying it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Is there a guarantee?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we will put it right.
Why do you put foam in the joint first?
We fit closed-cell backing rod wherever the joint depth needs controlling. It controls the depth and stops the sealant bonding to the back so the bead can stretch.
Can you do several jobs on one visit?
Yes. Just list everything you need and we will quote it together.
What sealant do you use?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
When will the joints need doing again?
It depends on the exposure, the movement and the product. Sealant is a maintenance item, so check the joints once a year and reseal when it splits.
How the job changes by surface
Concrete and blockwork
Concrete and block walls shrink as they dry and move with temperature. Their movement joints are sealed over backing rod with a flexible sealant.
Brickwork movement joints
Clay brickwork grows slightly over its life and moves with the weather. That movement goes into the joint, so its sealant has to stay flexible.
Places near Woodham
What else we do in Woodham
Outside joints around Woodham
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. With historic houses such as Botleys Mansion (about 2.2 miles north-west) nearby, there’s older building stock in the area around Woodham as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
For landlords with property near West Byfleet station, outside joints that have cracked can let damp into a rental, so check them between lets. If you live in an older home near Church of St John the Baptist, the joints between older walls, newer extensions and the roofline need a sealant that can move.
Woodham is about 3 miles north-east of Woking, in Surrey. Wherever you are in the KT15 postcode area, we can carry out external mastic at your property. 395 places in Surrey are on our list, from the larger towns to small villages. For nearby work, see our London page, about 21 miles away.
Jobs for external mastic in KT15 and GU21 is quoted and booked the same way as anywhere else. If you need external mastic at a property on Willow Close, Greenwood Close and Westwood Avenue or anywhere close by, our applicators can take on the job. Nearby, we also carry out external mastic in West Byfleet (1 mile south-east), Sheerwater (1 mile south-west), Pyrford (1 mile south), Row Town (1 mile north) and Ottershaw (1 mile north-west). Within a short drive, we also cover Guildford (7 miles south), Woking (3 miles south-west), Camberley (9 miles west), Epsom (11 miles east), Farnham (15 miles south-west) and Ewell (11 miles east).
Local landmarks in Woodham
We work in homes and buildings around The Grange Community Infant School, The Station pub and The Bishop David Brown School. The closest station to Woodham is West Byfleet station, about 0.5 miles south-east. Well-known places in the area include St. Peter's Hospital (2.3 miles north) and The Peacocks (2.6 miles south-west). Green spaces nearby include St Ann's Hill and Papercourt Marshes.
Common problems we fix in Woodham
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. The sealant in the movement joints takes that strain.
It’s worth asking for a quote if you see:
- Failed seals between different materials
- Movement joints filled with mortar instead of sealant
- Weeds or debris growing in open joints
- Failed sealant between panels on a façade
Schools such as Fullbrook School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing.
What to look for in a quote
- How much experience the applicator has
- Whether VAT is included
- Whether the sealant suits the joint
- What insurance they hold
When something else is needed
Sealant isn’t the answer to every problem, and we will tell you before any work starts. It will not solve:
- Cracking across the wall rather than at a joint
- Structural movement, which needs a surveyor or engineer
- Failed render or damaged cladding panels
Not sure which it is? You can phone 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Surfaces we seal
- Copings & trims
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
- Concrete & block
- Façade panels