Surrey · England
External & façade joints in Wonersh, Surrey
External mastic in Wonersh from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Weathered mastic that no longer stretches
- Movement joints filled with mortar instead of sealant
- Sealant pulling away from one side of the joint
External mastic for homes and businesses in Wonersh
For buildings in Wonersh, we reseal external joints of all kinds, from brick movement joints to cladding panels. Every joint gets the same careful preparation: clean joint faces and the right depth. We work on copings & trims, façade panels and brickwork movement joints, and people most often call us about water getting into walls through failed joints and movement joints filled with mortar instead of sealant.
Older homes in small places like Wonersh may be stone, brick or timber-framed, often with later extensions. Where one material meets another is where water normally gets in, and they need the right sealant at the right depth.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Wonersh (GU5)
- Region
- Surrey
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
External mastic in Wonersh: local notes
Historic houses like Chilworth Manor (about 1.7 miles north) are a reminder that the area around Wonersh 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. 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 look after a building such as Bramley CofE Aided Infant School and Nursery, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. Rented homes near Chilworth station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. Homes close to Wonersh United Reformed Church include some older properties, and old and new materials meet at the roofline and walls, which is where sealant earns its keep.
Wonersh is about 4 miles south of Guildford, in Surrey. We carry out external mastic for householders, landlords and businesses in Wonersh, as part of our work across Surrey. Wonersh is one of 395 places in Surrey we cover. For nearby work, see our Crawley page (16 miles or so).
Work in GU5 is quoted and booked the same way as anywhere else. If you need external mastic at a property on The Street, Woodyers Close and The Close or a nearby road, we can help. Other places close to Wonersh include Bramley (1 mile west), Shamley Green (1 mile south-east), Birtley Green (1 mile south), Stroud Common (2 miles south-east) and Grafham (2 miles south). Larger places within reach include Guildford (4 miles north), Woking (8 miles north), Camberley (12 miles north-west), Epsom (15 miles north-east), Farnham (11 miles west) and Reigate (15 miles east).
Landmarks near Wonersh
Typical jobs here are in homes near Shalford Mill, Broadwater School and The Grantley Arms Public House, among other places. For rail, the closest station is Chilworth station, about 1.5 miles north-east. Nearby you will also find Surrey Police Museum (2.6 miles north-west) and Guildford Castle (2.9 miles north-west). The countryside around Wonersh includes St Martha's Hill and Silent Pool.
Questions from Wonersh
Can you help a landlord with a rental near Chilworth station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Do you cover smaller places like Wonersh?
Yes. Wonersh is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Are you an approved applicator?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Are you insured?
Yes. We are fully insured, with over 20 years’ experience in sealant work.
Is the work guaranteed?
Yes, always. There’s a 12-month guarantee on every job.
How do I get a quote for external mastic in Wonersh?
Every job is different, so each one gets its own quote. For a quick quote, ring 0345 464 0079 or send us an email with a short description of the job.
How often do external joints need resealing?
It depends on the exposure, the movement and the product. Treat it as a maintenance item and look at it yearly and reseal when it splits.
Do I need to be at home?
It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Quotes for external mastic in Wonersh
For a quick quote, just ask. What matters most is:
- Any mould that needs treating
- The size of the job
- The product the joint needs
- Whether old sealant or filler has to be cut out
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we’ll go through it with you.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- If it’s domestic, commercial or a hotel
- Any previous sealing or DIY work
- Pictures of the joints, sent by email
- What’s wrong with the joints now
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we will come back to you with a quote.
What we do, step by step
Good joint work is mostly preparation, and we don’t rush it. Every joint is cleaned and dried before new material goes in. In total, it generally takes a few hours for a handful of joints, longer for a whole elevation. Somewhere as small as Wonersh, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Tell us if parking is tricky
- Tell us about any water getting in
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
For a quick quote, get us on the phone, or email us if that is easier. Describe what needs sealing and we’ll explain what’s involved and send you a clear quote.
Read more
Towns and villages near Wonersh
Other services in Wonersh
Honest limits
In fairness, there are a few things sealant will not fix:
- Cracked brickwork or render that needs a builder or plasterer
- Structural movement, which needs a surveyor or engineer
- Damp that is not coming from the joint
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Surfaces we seal
- Render & cladding joints
- Copings & trims
- Brickwork movement joints
- Joints between brick and frames
- Façade panels
- Concrete & block
Can I do it myself?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it does not work out, we can still put it right.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
Landlords, agents and businesses in Wonersh
We regularly work with letting and managing agents. Tell us the address, the job and how access works and we will quote.
We also work for property managers and facilities teams. Several sites can be quoted together, and we’re fully insured.
How the job changes by surface
Copings and trims
Metal and stone copings both move with temperature, so the joints need a sealant that stays flexible.
Render joints
Render is weaker at the surface than brick, so a sealant that stretches easily protects the edges. We prime where the product needs it.
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Wash walls gently around the sealant
- Act on the first splits you see
- Point out the joints to other trades
- Make sure movement joints aren’t pointed over
Only paint over the joint if we’ve confirmed the sealant can take paint. Many exterior sealants are not designed to be painted, and paint can crack as the joint moves.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Resealing it early helps prevent that.