Surrey · England
Tandridge External Mastic
External mastic in Tandridge from a team with over 20 years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Plants rooting in failed movement joints
- Leaking joints around cladding and façade panels
- Movement joints filled with mortar instead of sealant
External mastic in Tandridge
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 take the old material out and do it properly. Typical jobs include plants rooting in failed movement joints and weathered mastic that no longer stretches, across copings & trims, façade panels and brickwork movement joints.
Somewhere as small as Tandridge, homes and farm buildings often face open ground, so walls and rooflines take the full force of wind and rain. Gutter joints and wall joints there need a sealant that can flex and stay put.
Our work is backed for twelve months, in Tandridge and everywhere else we cover.
- Where
- Tandridge (RH8, RH9)
- Wider area
- Surrey
- Guarantee
- A year, on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
Outside joints around Tandridge
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. With historic houses such as Titsey Place (about 3.4 miles north-east) nearby, there’s older building stock in the area around Tandridge as well as newer homes. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
If you live in an older home near Church of St Peter, an extension built onto an older house moves differently, and the joint between them takes the strain. Rented homes near Godstone station change hands often, and split movement joints are easy to miss on a rental until damp shows inside. If you look after a building such as St Peter's CofE Infant School, its movement joints, gutters and trims need looking after like any other building’s.
Tandridge is about 2 miles south-west of Oxted, in Surrey. Homes, rented property, offices and hotels in Tandridge is covered for external mastic, old or new, large or small. Every job comes with our 12-month guarantee. Tandridge is one of 395 towns and villages in Surrey we cover for external mastic. You can also see our page for Crawley, roughly 11 miles from Tandridge.
We cover every part of RH8 and RH9 for external mastic and the streets around it. If you need external mastic at a property on Jackass Lane, Tandridge Lane and The Walk or a nearby road, our applicators can take on the job. We also cover Church Town (1 mile north-west), South Godstone (1 mile south-west), Hurst Green (2 miles east), Godstone (2 miles north-west) and Oxted (2 miles north-east). Larger places within reach include Epsom (12 miles north-west), Horley (7 miles south-west), Redhill (6 miles west), Ewell (12 miles north-west), Reigate (7 miles west) and Caterham (4 miles north-west).
Near you in Tandridge
We work in homes and buildings around Bay Pond and Oxted School and the streets around them. Tandridge’s nearest station is Godstone station, roughly 1.6 miles south-west of the centre. Well-known places in the area include Bletchingley Castle (3.2 miles west) and East Surrey Museum (3.5 miles north-west). The countryside around Tandridge includes Botley Hill and Mercers Lake.
Different surfaces, different methods
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. Each joint gets a sealant that suits the panel and its movement.
Brickwork movement joints
Brick movement joints are often mistaken for a missing mortar line. Where one has been mortared, we cut it out and reseal it with sealant if the joint can be cleared.
Also near Tandridge
What else we do in Tandridge
What affects the quote in Tandridge
We quote each job individually. These are the things that affect it:
- Mould in or behind the old joints
- Access and height
- The number and length of the joints
- Whether old sealant or filler has to be cut out
Homes and businesses are quoted the same way: how much there is to do, how we reach it and what it needs, plus any working-time requirements on site. Ask us for a quote and we’ll explain what it covers.
What to tell us for a quote
There’s no need for technical detail. It helps if you can tell us:
- How many joints, rooms or windows are involved
- Where the job is, and your postcode
- Any access issues, like height or stairs
- Any previous sealing or DIY work
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. We’ll explain what we’d do and give you a clear price before any work starts.
The process
Once we’re on site, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a handful of joints, longer for a whole elevation. Somewhere like Tandridge needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- First, the joints are inspected and the access agreed.
- Every bit of old sealant and any mortar or debris is cut out.
- Joint faces are cleaned back and primed if the sealant needs it.
- We fit closed-cell backing rod to control the depth.
- The exterior sealant is applied, tooled and checked along its length.
How to prepare
- Mention if the joints have been sealed before
- Tell us if parking is tricky
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Advice
Tandridge questions
Do you cover Tandridge for external mastic?
Yes, Tandridge is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job.
Can you help a landlord with a rental near Godstone station?
Yes. We work for letting agents and landlords as well as householders. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Do the sealants smell?
Possibly a little. It fades as the sealant cures, and ventilation helps.
Are you ARBOMaster approved?
Yes. We’re an ARBOMaster approved applicator, the approved applicator scheme for Arbo sealants.
Do you take out the old sealant first?
Yes, every time. New sealant won’t bond properly to old, so any old material comes out before anything new goes in.
How long does external mastic last?
That depends on the wall, the weather and the movement. Look for splits, hardening or edges coming away.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
Do you seal joints where cladding meets other materials?
Yes. Where different materials meet is one of the most common joints we seal. The sealant is chosen to bond to both sides with primer where required.
Why act early in Tandridge
Sealing over the top of old mastic doesn’t hold for long. New sealant doesn’t bond well to old, weathered sealant, so the old joint is cut out fully first. Older cottages and farmhouses around Tandridge can have timber floors and frames, and water through a failed joint can rot timber if it’s left.
A failed joint rarely gets cheaper to fix by waiting, as water and mould keep getting in. If you’re unsure, call 0345 464 0079 or email us and we will give you an honest view and a quote.
What you get with us
- 180+ five-star Google reviews
- White, clear, grey or coloured to suit, where the product allows
- Fully insured
- Old sealant always removed completely
Read our cost guide or our reviews.
What sealant work can’t fix
We won’t take on work that won’t last, so here’s what sealant cannot put right:
- Failed render or damaged cladding panels
- Walls that need new movement joints cut into them
- Rising or penetrating damp from elsewhere in the wall
Not sure which it is? You can ring 0345 464 0079 or send us an email and we’ll tell you honestly.
Surfaces we seal
- Brickwork movement joints
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Copings & trims
- Concrete & block
Keeping the joints in good condition
Once the sealant has cured, a few habits help it last:
- Clear growth from the base of walls and joints
- Keep high-pressure jets off the joints
- Make sure movement joints aren’t pointed over
- Deal with leaking gutters that soak the joints below
Keep pressure washers away from the sealant. High-pressure water can lift the edges.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
For landlords and businesses
Landlords and letting agents in Tandridge can book us as well as householders. Sealant work between tenants keeps a property looking cared for before the next move-in.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.