Surrey · England
External & façade joints in Compton, Surrey
Professional external mastic in and around Compton, with old sealant always removed completely and a 12-month guarantee.
- Failed sealant between panels on a façade
- Damp patches traced to an open external joint
- Joints with sealant missing in places
Why it’s worth doing now in Compton
Water gets in through a failed movement joint and can run behind render or cladding. Dealing with it early keeps the repair to the joint, rather than the wall around it. In a small place like Compton, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
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.
Why Compton clients choose us
- We never seal over old sealant
- Homes, businesses and hotels
- White, clear, grey or another colour, product permitting
- Sanitary silicone with an anti-fungal additive in wet areas
Read our cost guide or what customers say.
External mastic for homes and businesses in Compton
Many failed façade joints only get noticed once there’s a stain or a damp patch inside. We look over the joints, agree the ones to renew and reseal with a flexible, weatherproof product. If you’re dealing with joints with sealant missing in places and damp patches traced to an open external joint, we can put it right, whatever the surface.
Around Compton, older buildings can be stone, brick or timber-framed, many with extensions added later. The joints where those materials meet are the weak points.
Your job is guaranteed for a year, as with all our work.
- Location
- Compton (GU3)
- Region
- Surrey
- Guarantee
- One year on every job
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026
Questions from Compton
Do you cover smaller places like Compton?
Yes, Compton is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Do you cover Compton for external mastic?
Yes, Compton is within the area we cover. Our work covers London and the South East. Just call 0345 464 0079 or send us an email with a few details of the job.
Can a movement joint be filled with mortar?
No. A mortar-filled joint can’t move, so the wall cracks somewhere else instead. It needs a flexible sealant over backing rod.
I’m a tenant. Can you help?
Yes, though it’s best to check with your landlord first. Landlords are often happy for the work to be arranged.
Where do you work from?
We’re based in Crawley, West Sussex, and we cover South East England, London and all of Scotland.
Can you seal joints between render and window frames?
Yes. The old joint is removed, both surfaces cleaned and primed where needed, and a flexible sealant applied. We pick a colour that works with both materials.
How often do external joints need resealing?
It varies from wall to wall: sunny, exposed elevations and busy joints wear faster. A yearly look will tell you when they need doing. Our work comes with a 12-month guarantee.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
How we quote for external mastic
The price is agreed before any work begins. It’s based on:
- The amount of work
- Which sealant suits the joint
- How many areas need sealing
- The old material and how stubborn it is
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first and agree the price before starting.
What we need to know
Photos by email are helpful but not essential. Try to tell us:
- Photos by email, if that is easy
- The rough size of the job
- If it’s domestic, commercial or a hotel
- Where the job is, and your postcode
Asking for a quote is easy: let us know the job and the location. Photos by email help us understand the job, and we’ll take it from there.
DIY versus a professional finish
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, then guaranteed for a year.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
Places near Compton
More services for Compton
Looking after it afterwards
A little care helps the new joints last. Our advice:
- Keep soil, plants and ivy away from the joints
- Point out the joints to other trades
- Check external joints each spring
- Deal with leaking gutters that soak the joints below
Have a quick look at the joints each spring. Watch for splits, edges coming away or growth in the joint.
Leaks behind façade panels and render often go unseen. By the time there’s a damp patch, the damage can be well established.
How the visit works
There’s no need to move everything out before we come, only the area right around the joints. Everything nearby is protected, and the job takes a few hours to a few days, depending on the length of joint and the access for a typical job. Somewhere like Compton needs a little journey planning: let us know about lanes, gates and parking. Everything for the job comes with us, so a second trip is avoided where possible.
- First we look over the joints with you, agree which to renew and talk through access.
- The old mastic and anything lodged in the joint is removed.
- We clean both faces of the joint and prime them where the product calls for 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
- Clear items away from the joints we are working on
- Mention if the joints have been sealed before
- Try not to wet indoor joints just before the visit
Get a quote
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you are ready, call 0345 464 0079 or drop us an email.
Advice
External mastic in Compton: local notes
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Loseley Park (about 1 mile east) nearby, there’s older building stock in the area around Compton as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
For site and facilities teams at buildings such as Loseley Fields Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. In the older streets around Church of St Nicholas, old and new materials meet at the roofline and walls, which is where sealant earns its keep. Letting a property close to Farncombe station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
Compton is about 3 miles south-west of Guildford, in Surrey. We provide external mastic to homes and businesses in Compton and the surrounding area, as part of our work across Surrey. 395 places in Surrey are on our list, from the larger towns to small villages. Crawley is on our list too, around 20 miles away.
Here we cover the GU3 postcode area for external mastic. Local streets include The Street, Spiceall and Almsgate, and we cover them all. We also cover the places around Compton: Hurtmore (1 mile south), Binscombe (1 mile south-east), Littleton (1 mile east), Shackleford (2 miles south-west) and Onslow Village (2 miles north-east). We also work in nearby towns such as Guildford (3 miles north-east), Woking (7 miles north), Camberley (9 miles north-west), Farnham (7 miles west), Egham (15 miles north) and Walton-on-Thames (15 miles north-east).
Near you in Compton
In Compton, that means homes and buildings near Broadwater School, Pucks Oak Barn and McAlmont Reserves and The Harrow pub and the streets around them. For rail, the closest station is Farncombe station, roughly 1.6 miles south-east. Other landmarks nearby include Charterhouse School Museum (1.2 miles south) and Guildford Castle (2.8 miles north-east). For a walk, there’s Farncombe Wood and Frith Hill.
Landlords, agents and businesses in Compton
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
What the job involves on each surface
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. We reseal them with a sealant suited to the panel material.
Concrete and blockwork
Blockwork and concrete shrink over time and move with the seasons. Their movement joints are sealed over backing rod with a flexible sealant.