Greater London · England
External Mastic in Hampton Hill
Sealing brickwork movement joints, render, cladding and façade joints for homes and businesses in Hampton Hill and across Greater London. Fully insured, ARBOMaster approved and guaranteed for a year.
- Rain getting behind render or cladding at a joint
- Panel joints letting water in
- Sealant that has lost its bond to the brick or render
About our external mastic in Hampton Hill
Failed sealant is cut out, the depth set with closed-cell backing rod, and the joint resealed with a low-modulus sealant made for outside. The colour is chosen to suit the brick or render so the joint does not stand out. We work on render & cladding joints, concrete & block and joints between brick and frames, and the jobs we see most are leaking joints around cladding and façade panels and joints where the bead has come unstuck.
Working on the outside of a London home means planning access: shared paths, upper floors and parking. In Hampton Hill, joints up high may need ladders or other access, which is worth talking through when you book.
You get a one-year guarantee, the same in Hampton Hill as everywhere else we work.
- Where
- Hampton Hill (TW12, TW11, TW2)
- Wider area
- Greater London
- Guarantee
- One year on every job
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Keeping the joints in good condition
Aftercare is simple, and it makes a real difference:
- Keep movement joints as flexible joints, not mortar
- Tell anyone working on the walls about the movement joints
- Clear growth from the base of walls and joints
- Have failed joints looked at early
Do not let soil, plants or ivy build up against the new joints. Damp material against the sealant shortens its life.
Small splits are the time to act. Then it’s a straightforward cut-out and reseal.
Hampton Hill buildings and the weather
London terraces and converted houses often share gutters, downpipes and walls, so it’s worth agreeing who is responsible before work starts. With historic houses such as Strawberry Hill House (about 1.2 miles north-east) nearby, there’s older building stock in the area around Hampton Hill as well as newer homes. In older buildings, older brick and stone need a sealant that suits them, at the right joint depth.
Managing a site like Hampton Hill Junior School? Then larger buildings have long runs of movement joint that eventually need resealing. For landlords with property near Fulwell station, split movement joints are easy to miss on a rental until damp shows inside. Homes close to Hampton Hill United Reformed Church include some older properties, and an extension built onto an older house moves differently, and the joint between them takes the strain.
Hampton Hill is about 2 miles south-west of Twickenham, in Greater London. From the centre of Hampton Hill to the outskirts, external mastic is available for homes and businesses alike. 764 places in Greater London are on our list, from the larger towns to small villages. There’s also a page for London, about 12 miles away.
Work in TW12, TW11 and TW2 works the same way as everywhere else we cover. That includes homes and businesses on Mays Road, Park Road and Holly Road and the roads around them. Hampton Hill sits on or near the A311 and A313, so getting to you is simple. Other places close to Hampton Hill include Fulwell (1 mile north-east), Hampton (1 mile west), Teddington (1 mile east), Hanworth (1 mile west) and Strawberry Hill (1 mile north-east). Within a short drive, we also cover London (12 miles north-east), City of Westminster (11 miles north-east), Marylebone (11 miles north-east), Kensington (8 miles north-east), St Pancras (12 miles north-east) and Shoreditch (14 miles north-east).
What’s near Hampton Hill
Locally, jobs take us to homes and businesses close to Lady Eleanor Holles School, Park Hotel and Carlisle Park and the streets around them. For rail, the closest station is Fulwell station, roughly 0.6 miles north-east. Other landmarks nearby include Bentall Centre (2.4 miles south-east) and Metropolitan Traffic Police Museum (0.9 miles south-west). For a walk, there’s Richmond Hill and Kew Gardens Lake.
How it works
There’s no need to move everything out, just the space around the work. We protect the rest, and the job takes anything from a few hours to several days, depending on the building in most cases. In Hampton Hill, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- We look at every joint and agree a colour to suit the wall.
- We take out the old sealant until the faces are sound.
- Closed-cell backing rod is pushed in so the sealant bonds to two sides only.
- We prime the faces where required.
- A low-modulus exterior sealant is gunned in and tooled to a neat finish.
Before we arrive
- Plan for the work area to be out of bounds to pets and children
- Tell us about any previous sealing or DIY attempts
- Tell us about any water getting in
How to get a quote
Every job is quoted individually, so start by telling us what you need. Simply call 0345 464 0079 or drop us an email and describe the job, and photos are welcome.
Read more
Your questions about external mastic in Hampton Hill
Do you cover Hampton Hill for external mastic?
Yes, Hampton Hill is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing, and we’ll give you a clear price.
Can you help a landlord with a rental near Fulwell station?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. Just call 0345 464 0079 or drop us an email with the address and what needs doing, and we will give you a clear quote.
What colours does the sealant come in?
The aim is a neat, even joint in a colour that suits the wall. We will talk through colour options before we start, matched as closely as the range allows.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before resealing.
Why is there a gap in my brick wall?
A movement joint is a planned break in the wall that absorbs expansion and shrinkage. It should be filled with flexible sealant, never mortar.
Will there be a smell?
It depends on the product. Some smell for a while, some hardly at all, and any smell fades as they cure.
Is the work guaranteed?
Yes: twelve months. If anything isn’t right with the work within the year, let us know and we’ll sort it.
What do you put in the joint?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we’re using.
What affects the quote in Hampton Hill
For a quick quote, just ask. The main things that affect it are:
- The number of rooms or windows
- Any working-time requirements on site
- The number and length of the joints
- Whether there’s mould to deal with
Doing several joints on one visit usually makes better use of the time than several visits, so it’s worth mentioning everything you’d like done. We’ll give you a clear price for the lot.
What we need to know
To help us quote quickly, let us know:
- The type of property
- The problem you’ve noticed
- Where the job is, and your postcode
- The rough size of the job
Asking for a quote is easy: let us know the job and the location. A few pictures by email make the job easier to understand, and we will take it from there.
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
How the job changes by surface
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.
Joints between dissimilar materials
Brick against render, concrete against metal, stone against timber: every change of material is a joint. We seal the joint with a flexible exterior sealant.
What we cannot put right
We won’t take on work that won’t last, so these are the limits:
- Subsidence or other structural problems
- Loose or hollow render, which needs re-rendering
- Adding movement joints to masonry that has none
If you are not sure, just call 0345 464 0079 or email us and we will give you a straight answer before you book.
Surfaces we seal
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Copings & trims
- Façade panels
- Joints between brick and frames
Landlord and commercial work in Hampton Hill
For anyone letting property in or around Hampton Hill, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
We also work for property managers and facilities teams in Hampton Hill and across Greater London. Several sites can be quoted together, and we are fully insured.