Surrey · England
External Mastic in Tadworth
External mastic for Tadworth and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Panel joints letting water in
- Hard, crazed mastic that has stopped moving
- Rigid filler in a joint that should flex
For landlords and businesses
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
If you manage several properties in or around Tadworth, several properties can go on one quote. Send us the addresses and the work at each.
External mastic in Tadworth
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We take the old material out and do it properly. Common call-outs are for rigid filler in a joint that should flex and joints with sealant missing in places, across copings & trims, joints between brick and frames and render & cladding joints.
Around Tadworth, garages, outbuildings and extensions all add to the joints on the outside of a home. Leaks normally start at a gutter end, a garage door frame or where an extension meets the house.
Big or small, you get the same one-year guarantee.
- Where
- Tadworth (KT20, KT18)
- Wider area
- Surrey
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Aftercare tips
To keep the joints looking good and working properly:
- Keep water from gutters off the wall
- Keep movement joints as flexible joints, not mortar
- Avoid pressure-washing directly into sealant joints
- Walk round the building once a year and look at the joints
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They must stay as flexible joints, never rendered or pointed over.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
What affects the cost of external mastic
Call for a quick quote. What matters most is:
- Any working-time requirements on site
- The product the joint needs
- The size of the job
- How many rooms, windows or areas are involved
The cost reflects the work involved, not guesswork. That’s why we ask a few questions first.
Helping us quote
You don’t need to know the technical terms. It helps if you can tell us:
- Any previous sealing or DIY work
- The problem you’ve noticed
- Where the job is, and your postcode
- How many joints, rooms or windows are involved
For a quote, phone 0345 464 0079 or send us an email with the location and a short description of the problem. You will have a clear quote before any work starts.
Tadworth: your questions answered
Do you cover smaller places like Tadworth?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
I let a flat near Tadworth station. Can you help?
Yes, we work for landlords and agents. Just ring 0345 464 0079 or drop us an email and tell us about the property, and we will send you a clear quote.
Can you match the colour of my brickwork?
The sealant colour is picked to suit the wall, so the joint sits quietly in the wall. There’s a wide choice of exterior colours.
Can you quote for more than one area?
Of course. Doing several areas at once is generally more efficient.
Can you seal joints between two different materials?
Yes. Joints between dissimilar materials are a big part of external work. The sealant is chosen to bond to both sides, primed where needed.
What do you need from me for a quote?
Where the job is, what the problem is and roughly how big it is. Photos by email help too.
Is there a guarantee?
Yes, always. Each job is guaranteed for twelve months, wherever you are.
Do you have insurance?
Yes. We’re fully insured for every job we do.
When it is not the sealant
We won’t take on work that won’t last, so these are the limits:
- Cutting new joints into brickwork, which is building work rather than sealant work
- Cracking across the wall rather than at a joint
- Render that’s blown, hollow or coming away
If you are not sure, just ring 0345 464 0079 or email us and we will give you a straight answer before you book.
Joints and surfaces we work on
- Render & cladding joints
- Copings & trims
- Joints between brick and frames
- Brickwork movement joints
- Façade panels
- Concrete & block
The process
All our tools and materials come with us in the van. After a quick look at the joints together, we protect the area and start. Most jobs take anything from a few hours to several days, depending on the building. A visit to Tadworth is planned like any other: the time, the access and where to park are agreed in advance. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- 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.
Getting ready for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Let us know about earlier repairs to the joints
- For indoor joints, keep the area dry beforehand if you can
How to get a quote
For a quick quote, get us on the phone, or email us if that’s easier. Describe what needs sealing and we will explain what’s involved before giving you a price.
Advice
Nearby places to Tadworth
Also in Tadworth
External mastic in Tadworth: local notes
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. Historic houses like Fitznells Manor (about 3.9 miles north) are a reminder that the area around Tadworth has older buildings as well as new. Where a home is older, older walls and rooflines need a sealant that moves with them and suits the material.
Rented homes near Tadworth station change hands often, and outside joints that have cracked can let damp into a rental, so check them between lets. Schools such as Tadworth Primary School are buildings too, and larger buildings have long runs of movement joint that eventually need resealing. If you live in an older home near Church of the Good Shepherd, older walls, gutters and the joints where extensions meet them need a flexible sealant.
Tadworth is about 3 miles south-east of Epsom, in Surrey. For external mastic in and around Tadworth, please call 0345 464 0079 or send us an email for a quick quote. We cover Surrey from our Crawley base. Across Surrey, we cover 395 places, Tadworth among them. Crawley is on our list too, about 13 miles from Tadworth.
Here we cover the KT20 and KT18 postcode area for external mastic. If you need external mastic at a property on Beatrice Square, High Street and Fairacres or anywhere close by, we can help. If you’re just outside Tadworth, we cover Kingswood (1 mile south-east), Walton on the Hill (1 mile south-west), Lower Kingswood (2 miles south-east), Headley (2 miles south-west) and Mogador (3 miles south). Within a short drive, we also cover Guildford (15 miles west), Woking (15 miles west), Epsom (3 miles north-west), Horley (9 miles south), Redhill (5 miles south-east) and Ewell (4 miles north).
Landmarks near Tadworth
Typical jobs here are in homes near The Beacon School, Merland Rise Recreational Ground and Inn on the Green, among other places. The nearest railway station is Tadworth station, roughly 0.5 miles south-west of the centre. Well-known places in the area include The Ashley Centre (2.9 miles north-west) and Headley Court (2 miles west). Green spaces nearby include Colley Hill and Cuddington Meadows.
Why act early in Tadworth
A properly done movement joint is an even line in a colour that suits the wall. A hurried job with smeared edges and no backing looks worse and fails sooner. Around Tadworth, water from a failed joint in an older home can soak into timber and plaster, and that’s a much bigger job than renewing the sealant.
Combining jobs into one visit normally makes better use of the time than several visits. We will give you a clear quote for the lot.
Why us?
- Anti-fungal sanitary silicone in wet areas
- ARBOMaster approved applicator
- Neat joints and a tidy finish
- A sealant colour to suit the surroundings
Read what affects the cost and customer reviews.
Surface by surface
Joints between dissimilar materials
Where a frame or panel meets masonry, water often finds a way in. The old joint is removed and a sealant that bonds to both sides goes in.
Render joints
Rendered walls have joints at beads, openings and changes of material. We reseal them with a flexible exterior sealant that suits the render colour.