Hampshire · England
External Mastic in Townsend
Our applicators work in Townsend on sealing brickwork movement joints, render, cladding and façade joints. Old material cut out, joints cleaned and sealed neatly and a one-year guarantee.
- Failed seals between different materials
- Joints where the bead has come unstuck
- Joints pointed up with cement by mistake
External mastic in Townsend, done properly
Short cuts in external joints show up within a season or two. 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. We work on render & cladding joints, concrete & block and brickwork movement joints, and common reasons people get in touch are old sealant gone brittle and cracked and moss and dirt in joints with no sealant left.
External sealant needs dry, clean surfaces, so work around Townsend is planned for dry weather. Let us know about access to every wall, plus any garages or outbuildings.
We stand behind the work with a 12-month guarantee, so you’re not left on your own once the job is done.
- Location
- Townsend (RG26)
- Region
- Hampshire
- Cover
- 12 months on all our work
- Quotes
- A clear price before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Your questions about external mastic in Townsend
I let a flat near Midgham station. Can you help?
Yes. We work for landlords and letting agents as well as householders, 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’ll give you a clear quote.
Will you come out to Townsend?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Will the new joint stand out?
There’s a good range of exterior colours, including greys, browns, whites and stone tones. We choose the closest to your brick or render.
How often do external joints need resealing?
That depends on the wall, the weather and the movement. Look for splits, hardening or edges coming away, and reseal at that point.
Do you have insurance?
Yes. We’re fully insured.
Do you guarantee your work?
Yes. All our work carries a 12-month guarantee.
How long before the joint can be used?
Different products cure at different speeds, so follow the cure time we give you.
Do I have to be there?
We need access to the joints, so we will agree that with you when we book. Indoors, that usually means someone at home.
How it works
The work is kept neat and contained to the area we are working on, so you can get on with your day. Expect the work to take anything from a few hours to several days, depending on the building, and we tell you how long to leave it before we go. Somewhere like Townsend needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- 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.
- We clean both faces of the joint and prime them where the product calls for it.
- Backing rod goes in next, setting the depth and keeping the sealant off the back of the joint.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Preparing for the visit
- Keep children and pets away from the work area
- Tell us about any water getting in
- On commercial sites, let us know about site rules
Getting a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is, and add pictures by email if you can.
Read more
What happens if it’s left?
Resealing a run of joints in one go is usually better than patching one at a time. Joints of the same age tend to fail together and it means sorting access once. In a small place like Townsend, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
The cost reflects the work involved, not guesswork. That’s why we ask about the job first and agree the price before starting.
What you get with us
- Colour picked to suit the job
- Every job guaranteed for a year
- 180+ five-star Google reviews
- Anti-fungal sanitary silicone in wet areas
See our cost guide and our reviews.
What sealant work cannot fix
In fairness, some problems need a different trade:
- Structural movement, which needs a surveyor or engineer
- Damp from another source, such as a leaking gutter or a bridged damp-proof course
- Walls that need new movement joints cut into them
Not sure which it is? You can phone 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
What we seal
- Concrete & block
- Joints between brick and frames
- Render & cladding joints
- Façade panels
- Copings & trims
- Brickwork movement joints
How we quote for external mastic
Some jobs are bigger than they look, and some smaller. The main factors:
- How many areas need sealing
- Access and height
- The number and length of the joints
- Working hours on commercial sites
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
What we need to know
Photos help, but a description is a good start. Please mention:
- The problem you’ve noticed
- Roughly how big the job is
- If it’s domestic, commercial or a hotel
- Photos by email, if that’s easy
For a quote, call 0345 464 0079 or send us an email with the location and a short description of the problem. We will give you a clear price before any work starts.
What external mastic looks like in Townsend
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. Historic houses like The Vyne (about 4.7 miles east) are a reminder that the area around Townsend 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.
Letting a property close to Midgham station? Then outside joints that have cracked can let damp into a rental, so check them between lets. In the older streets around Church of St Catherine, old and new materials meet at the roofline and walls, which is where sealant earns its keep. If you look after a building such as The Hurst School, larger buildings have long runs of movement joint that eventually need resealing.
Townsend is about 3 miles south-west of Tadley, in Hampshire. Every kind of property in Townsend can book us for external mastic. The work is guaranteed for a year. Our area takes in 683 places across Hampshire, large and small. You can also see our page for Reading, about 13 miles away.
Our applicators cover all of RG26 for external mastic. Neighbouring places we cover for external mastic include Wolverton Common (1 mile north), Axmansford (2 miles north), West Heath (2 miles east), Ramsdell (2 miles south-east) and Baughurst (2 miles north-east). Further out, we also cover Basingstoke (6 miles south-east), Andover (15 miles south-west), Alton (15 miles south-east), Tadley (3 miles north-east), Hook (11 miles east) and Popley (5 miles south-east).
Landmarks near Townsend
Typical jobs here are in homes near The George And Dragon Public House. The nearest railway station is Midgham station, about 4.9 miles north. Other landmarks nearby include Park Prewett Hospital (4.5 miles south-east).
DIY versus a professional finish
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and getting the depth right matters as much as the look.
How the job changes by surface
Render joints
The face of render can be soft, so a sealant that stretches easily protects the edges. Priming is done where the sealant calls for it.
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.
Places near Townsend
What else we do in Townsend
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
For anyone letting property in or around Townsend, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.