Hampshire · England
External & façade joints in Hyde, Hampshire
Problem with your movement joints in Hyde? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Sealant pulling away from one side of the joint
- Rain getting behind render or cladding at a joint
- Joints with sealant missing in places
DIY versus a professional finish
Some jobs are best left to a professional: work at height, external movement joints, fire-rated sealant and large areas need the right product, the right access and the right method.
Sealing over old silicone is the commonest DIY error. Silicone does not stick to old silicone, so it lifts and traps water and mould underneath. All the old material has to come out first.
External mastic for homes and businesses in Hyde
Low-level joints can usually be done from the ground. Where joints are higher up, tell us about the building when you get in touch and we will confirm what’s needed to reach them safely. We work on render & cladding joints, façade panels and concrete & block, and people most often call us about hard, crazed mastic that has stopped moving and movement joints filled with mortar instead of sealant.
Houses in smaller places like Hyde can stand more in the open than those in a built-up town, so exposed walls and rooflines take more wind-driven rain. Joints on those sides are usually the first to go.
All of our work is guaranteed for twelve months, in Hyde and everywhere else we cover.
- Where
- Hyde (SO23, SO22, SO20)
- Wider area
- Hampshire
- Cover
- A year, on every job
- Quote
- A clear price before we start
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Looking after it afterwards
Simple care keeps the joints in good condition. We recommend:
- Clear growth from the base of walls and joints
- Fix overflowing gutters above sealed joints
- Avoid pressure-washing directly into sealant joints
- Keep movement joints as flexible joints, not mortar
If you have more work done on the wall, such as new render, cladding or an opening, show the contractor the movement joints. They should be kept open and resealed, not filled.
A joint that has stopped moving pushes the movement elsewhere, often as cracks near the joint. Catch it early and you reduce the risk.
When something else is needed
New sealant cannot fix everything, and we’d rather say so up front. It will not solve:
- Loose or hollow render, which needs re-rendering
- Damp that isn’t coming from the joint
- Movement that’s more than a sealant joint can take
If in doubt, ring 0345 464 0079 or drop us an email and we will say what we think before you book.
Surfaces we seal
- Copings & trims
- Façade panels
- Render & cladding joints
- Concrete & block
- Brickwork movement joints
- Joints between brick and frames
Your questions about external mastic in Hyde
Do you cover Hyde for external mastic?
Yes. We work across London and the South East, and Hyde is part of that. Just call 0345 464 0079 or send us an email with a few details of the job.
Will you come out to Hyde?
Yes. Hyde is within the area we cover, which takes in towns, villages and rural addresses. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Will the new joint stand out?
The aim is a neat, even joint in a colour that suits the wall. Colour is agreed with you before we begin, matched as closely as the range allows.
Where is Mr Mastic based?
Our base is in Crawley, and we cover South East England, London and all of Scotland.
When will the joints need doing again?
There’s no fixed answer: sunny, exposed elevations and busy joints wear faster. Check them each year and reseal when they split or harden. Our work comes with a 12-month guarantee.
Is it messy?
Very little: the area around the joints is protected first, and we tidy up before we go.
Can tenants book the work?
Yes, but check with your landlord or agent first. Landlords are often happy for the work to be arranged.
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.
For landlords and businesses
We work for letting agents and landlords as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
How the job changes by surface
Joints between dissimilar materials
Each side of the joint may need its own preparation. We prepare both faces so the sealant bonds properly.
Cladding and façade panels
Metal and composite panels move a lot with temperature, so the joints work hard every day. The sealant is chosen with that in mind.
How it works
We bring everything the job needs with us. Once we have agreed what’s being done, we protect the area and start. It normally takes anything from a few hours to several days, depending on the building. Parking around Hyde is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- Each joint is checked and the colour of the new sealant agreed.
- We take out the old sealant until the faces are sound.
- Backing rod goes in so the sealant can stretch between the two faces.
- We prime the faces where required.
- We gun in low-modulus sealant and tool it neatly.
Getting ready for the visit
- Let us know about stairs, lifts or work at height
- Plan for the work area to be out of bounds to pets and children
- Tell us about any previous sealing or DIY attempts
Get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, ring 0345 464 0079 or send us an email.
Advice
External mastic in Hyde: local notes
The South East is one of the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
In the older streets around St Bartholomew's Church, older walls, gutters and the joints where extensions meet them need a flexible sealant. If you let a flat or house near Winchester station, failed wall and movement joints let damp in, so they’re worth checking between tenancies. For site and facilities teams at buildings such as St Bede Church of England Primary School, larger buildings have long runs of movement joint that eventually need resealing.
Hyde is about 1 mile north of Winchester, in Hampshire. Our applicators cover external mastic for householders, landlords and businesses in Hyde and nearby, as part of our work across Hampshire. Across Hampshire, we cover 683 places, Hyde among them. We also work in Southampton, about 11 miles from Hyde.
Postcode districts we cover here for external mastic: SO23, SO22 and SO20. If you need external mastic at a property on Elm Road, Swan Lane and City Road or anywhere close by, we can help. Nearby, we also carry out external mastic in Abbotts Barton (1 mile north-east), Winchester (1 mile south), Weeke (1 mile west), Highcliffe (1 mile south-east) and Bar End (1 mile south). Further out, we also cover Eastleigh (7 miles south), Andover (12 miles north-west), Totton (13 miles south-west), Chandler's Ford (7 miles south-west), Hedge End (11 miles south) and Romsey (9 miles south-west).
Near you in Hyde
Around Hyde, our work takes us to homes and buildings near Peter Symonds College, Leigh House Hospital and The King Alfred pub, among other places. There’s a railway station in Hyde itself: Winchester station. Nearby you’ll also find Winchester Castle (0.6 miles south-west) and Royal Observer Corps Museum (0.5 miles north). Open spaces near Hyde include Winnall Moors and Twyford Down.
Also near Hyde
More services for Hyde
What affects the quote in Hyde
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- Access and height
- When we can work, for business premises
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote and we will talk you through it.
What we need to know
Before you ask for a quote, have a think about:
- What’s wrong with the joints now
- Any previous sealing or DIY work
- If it’s domestic, commercial or a hotel
- Photos by email, if that is easy
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is, and we’ll talk you through what we’d do. When it suits you, ring 0345 464 0079 or email us.
