Greater London · England
External & façade joints in Temple, Greater London
External mastic for Temple, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Panel joints letting water in
- Hard, crazed mastic that has stopped moving
- Movement joints with cracked, split or missing sealant
How we quote for external mastic
The quote reflects the job in front of us. We look at:
- How much old sealant there is and how hard it is to remove
- Any working-time requirements on site
- The product the joint needs
- The size of the job
The cost reflects the work involved, not a rough estimate. That is why we ask about the job first.
Helping us 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
- Where the job is, and your postcode
- The rough size of the job
- Photos by email, if that’s easy
It all starts with a short chat. Describe the problem, the location and the size of the job, and we’ll talk you through what we’d do. Whenever you are ready, ring 0345 464 0079 or email us.
External mastic in Temple
On houses, flats and commercial buildings across Temple, we reseal joints in brickwork, render, cladding and façade panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. We work on brickwork movement joints, concrete & block and copings & trims, and people most often call us about movement joints with cracked, split or missing sealant and damp patches traced to an open external joint.
Outside work in London starts with access: side passages, upper floors and where to park. In Temple, joints up high may need ladders or other access, which is worth talking through when you book.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Temple (SE1, WC2H, WC2B)
- Region
- Greater London
- Cover
- One year on every job
- Price
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Surface by surface
Brickwork movement joints
Brick moves with heat and moisture, and grows a little over time. The movement joint takes that up, so the sealant in it must stay soft and stretchy.
Joints between dissimilar materials
Different materials may need different primers. Both surfaces are cleaned and primed as the product requires.
What sealant work can’t fix
Before you book, it’s worth knowing the limits too:
- Failed render or damaged cladding panels
- Cracks in the bricks or render themselves, away from the joints
- Structural movement, which needs a surveyor or engineer
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer.
Where we work in Temple
- Copings & trims
- Render & cladding joints
- Façade panels
- Brickwork movement joints
- Concrete & block
- Joints between brick and frames
Can I do it myself?
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Your questions about external mastic in Temple
Can you help a landlord with a rental near London Blackfriars station?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. Just call 0345 464 0079 or send us an email with the address and what needs doing, and we’ll give you a clear quote.
Is parking an issue for external mastic in Temple?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
Does someone need to be in?
We need access to the joints, so we’ll agree that with you when we book. Indoors, that usually means someone at home.
How long does external mastic last?
It varies with how exposed the wall is and how much the joint moves. Look for splits, hardening or edges coming away and have them redone then.
Where are you based?
We’re a Crawley-based firm. We work across South East England, London and Scotland.
Do you guarantee your work?
Yes: twelve months. If there’s a problem with our work in that time, tell us and we will put it right.
Do the sealants smell?
That depends on the sealant. Some smell for a while, some hardly at all, and any smell fades as they cure.
Do you hold any approvals?
Yes. We hold ARBOMaster approved applicator status and we are fully insured too.
Landlords, agents and businesses in Temple
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
What we do, step by step
On the day, we start by going over the job with you, so there are no surprises. Surfaces next to the work are protected before any work starts. The work usually takes a few hours to a few days, depending on the length of joint and the access. In Temple, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- 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.
- Both sides are cleaned back to sound material and primed if needed.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
How to prepare
- Let us know about parking restrictions
- Move anything stored near the joints
- Try not to wet indoor joints just before the visit
Get a quote
For a quick quote, get us on the phone, or send an email if you’d rather. Tell us about the joints that need doing and we will explain what’s involved.
Read more
Leave it or put it right?
A low-modulus sealant is chosen because it moves without pulling hard at the edges. That matters on brick, render and concrete, which can be weaker at the face. A stiffer product can damage the joint edge as it fails. In a London flat, a failed joint rarely stays your problem alone: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Some things make a job bigger or smaller: the old material and how easily it comes out, whether mould needs treating, and whether the work is at height. We take all of that into account in your quote.
Why us?
- 4.9 on Google from 180+ five-star reviews
- A sealant colour to suit the surroundings
- Old sealant always removed completely
- Colour agreed with you before any work starts
Read our cost guide and what customers say.
External mastic in Temple: 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 Dr Johnson's House (about 0.2 miles north-east) nearby, there’s older building stock in the area around Temple as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
If you look after a building such as St Clement Danes CofE Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s. For an older house near a landmark such as Temple Church, old and new materials meet at the roofline and walls, which is where sealant earns its keep. As a London address, Temple can be tricky for parking: let us know about parking bays, permits or a driveway.
Temple is about 1 mile south of St Pancras, in Greater London. Temple gets the same service as everywhere we cover: old sealant removed completely, careful preparation and a one-year guarantee. Temple is one of 764 towns and villages in Greater London we cover for external mastic.
Our applicators cover all of SE1, WC2H and WC2B for external mastic. That includes homes and businesses on Shoe Lane, Drury Lane and New Square. With the A4 and A40 close by, Temple is easy for our applicators to reach for external mastic. We also cover the places around Temple: Temple Bar (1 mile north), Blackfriars (1 mile east), Aldwych (1 mile west), Clare Market (1 mile north-west) and Covent Garden (1 mile west). Larger places within reach include Kensington (4 miles west), Walthamstow (6 miles north-east), Hampstead (4 miles north-west), Ruislip (14 miles west), Brompton (3 miles south-west) and Stockwell (3 miles south).
Near you in Temple
Around Temple, our work takes us to homes and buildings near St Mary-at-Hill, Garden Bridge and London Nautical School. You will also find The Devereux pub (under half a mile north-west), British Library of Political and Economic Science (within half a mile north-west) and Mercers' School (less than half a mile north). Temple has its own railway station: London Blackfriars station. Other landmarks nearby include Gabriel's Wharf (under half a mile south-east) and Montfichet's Tower (under half a mile east). For a walk, there’s Barnsbury Wood and St. James's Park Lake.