Hampshire · England
Spanish Green External Mastic
External mastic for Spanish Green and the surrounding area: the right sealant, proper preparation and a neat finish. Ask us for a quick quote.
- Weathered mastic that no longer stretches
- Moss and dirt in joints with no sealant left
- Sealant pulling away from one side of the joint
Should I try it myself first?
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
About our external mastic in Spanish Green
Where two different materials meet, such as brick and render or blockwork and metal, they move at different rates. A flexible exterior sealant takes up that movement. If you are dealing with rain getting behind render or cladding at a joint and joints where the bead has come unstuck, we can put it right.
Around Spanish Green, older buildings can be stone, brick or timber-framed, many with extensions added later. Where one material meets another is where water generally gets in.
Big or small, it’s backed by our one-year guarantee.

- Location
- Spanish Green (RG27)
- Wider area
- Hampshire
- Guarantee
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Spanish Green buildings and the weather
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 Stratfield Saye House (about 1.8 miles north) nearby, there’s older building stock in the area around Spanish Green as well as newer homes. In older buildings, older walls and rooflines need a sealant that moves with them and suits the material.
If you let a flat or house near Bramley (Hants) station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. Managing a site like Daneshill School? Then its movement joints, gutters and trims need looking after like any other building’s.
Spanish Green is about 4 miles north-west of Hook, in Hampshire. Spanish Green gets the same service as everywhere we cover: the old material taken out, joints prepared properly and a 12-month guarantee. Our Hampshire coverage runs to 683 places, Spanish Green among them. Reading is on our list too, about 9 miles from Spanish Green.
Our applicators cover all of RG27 for external mastic. Streets in the area include Potters Lane and Hartley Lane. We also cover the places around Spanish Green: Hartley Wespall (1 mile south-east), Sherfield on Loddon (1 mile south-west), Bramley Green (2 miles west), Church End (2 miles south-west) and Stratfield Saye (2 miles north). Within a short drive, we also cover Basingstoke (6 miles south-west), Farnborough (11 miles east), Fleet (8 miles south-east), Aldershot (12 miles south-east), Alton (12 miles south) and Yateley (8 miles east).
What’s near Spanish Green
In Spanish Green, that means homes and buildings near The Cricketers Public House and the streets around them. The nearest railway station is Bramley (Hants) station, about 2.3 miles west of the centre. A little further out are West Green House Agricultural Museum (3.7 miles south-east) and Beaumys Castle (3.7 miles north). Open spaces near Spanish Green include Daneshill Park Woods.
Also near Spanish Green
What else we do in Spanish Green
What we do, step by step
A visit follows a simple pattern: we check the joints, mask and protect the surrounding surfaces, do the work and tidy away. Most jobs take anything from a few hours to several days, depending on the building. Somewhere like Spanish Green 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 start by checking each joint, agreeing the ones to redo and how we’ll reach them.
- The old mastic and anything lodged in the joint is removed.
- Both sides are cleaned back to sound material and primed if needed.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- A flexible exterior sealant is applied and tooled in a colour to suit the wall.
Getting ready for the visit
- Tell us about any previous sealing or DIY attempts
- Clear the area around the work
- Keep pets and children clear of the area while we work
Ask for a quote
For a quote, ring 0345 464 0079 or send us an email and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
Related advice
What we can’t put right
A few problems are outside what sealant work can do:
- Render that is blown, hollow or coming away
- Rising or penetrating damp from elsewhere in the wall
- Cutting new joints into brickwork, which is building work rather than sealant work
If in doubt, ring 0345 464 0079 or send us an email and we’ll say what we think before booking.
What we seal
- Copings & trims
- Joints between brick and frames
- Façade panels
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
Why deal with it now?
A properly done movement joint is an even line in a colour that suits the wall. A rushed bead with no backing looks untidy and does not last so it’s worth doing right. Around Spanish Green, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
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.
What you get with us
- A sealant colour to suit the surroundings
- A 12-month guarantee on all work
- Rated 4.9 stars on Google
- Experience in homes, commercial sites and hotels
See our cost guide or what customers say.
Questions from Spanish Green
Is Spanish Green within the area you cover?
Yes. Spanish Green is within the area we cover, which takes in towns, villages and rural addresses. Our work covers London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you do external mastic in Spanish Green?
Yes, Spanish Green 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.
Will the old sealant be removed?
Yes, always, and completely. New silicone does not stick to old silicone, so any old material comes out before anything new goes in.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it doesn’t work out, we can redo it.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses and we’re fully insured.
Do you work for landlords and businesses?
Yes, regularly. Several properties can go on one quote.
Where do you work from?
We are based in Crawley, West Sussex, and we work across South East England, London and Scotland.
How much does external mastic cost in Spanish Green?
Size, access and the old material all affect the cost. Ask us for a quote and we will talk you through it.
How the job changes by surface
Joints between dissimilar materials
Different materials may need different primers. Both surfaces are cleaned and primed as the product requires.
Concrete and blockwork
Wide joints in concrete need the depth controlling carefully. We size the backing rod to the gap and keep the sealant to the right depth.
When to call us in Spanish Green
Sunlight, wet weather and frost wear exterior sealant down. In time it goes hard, crazes on the surface and stops stretching, so the next time the wall moves, it splits or pulls away.
Any of these means the joints need attention:
- Rain getting behind render or cladding at a joint
- Failed sealant between panels on a façade
- Old sealant gone brittle and cracked
- Plants rooting in failed movement joints
If you live in an older home near Church of St Mary the Blessed Virgin, the joints between older walls, newer extensions and the roofline need a sealant that can move.
What your quote should include
- How the surfaces are prepared before sealing
- Which sealant they’ll use, and why
- Are they insured?
- Which colour the sealant will be
Landlords, agents and businesses in Spanish Green
We work for letting agents and landlords as well as householders. Resealing between tenancies keeps a property looking cared for.
From a single let to a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
