West Sussex · England
External & façade joints in Roffey, West Sussex
Sealing brickwork movement joints, render, cladding and façade joints for Roffey, backed by a one-year guarantee. Call for a quick quote.
- Damp patches traced to an open external joint
- Movement joints with cracked, split or missing sealant
- Leaking joints around cladding and façade panels
External mastic for homes and businesses in Roffey
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. We pick a colour that sits well with the wall so the line blends in. We work on concrete & block, façade panels and render & cladding joints, and common reasons people get in touch are rain getting behind render or cladding at a joint and leaking joints around cladding and façade panels.
Houses in smaller places like Roffey can stand more in the open than those in a built-up town, and walls and rooflines facing the weather take the worst of it. Joints on those sides are usually the first to go.
Whatever the size of the job, you get the same 12-month guarantee.
- Location
- Roffey (RH12, RH13)
- Region
- West Sussex
- Cover
- 12 months on all our work
- Price
- A clear price before work begins
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Surface by surface
Cladding and façade panels
Panel systems often rely on sealant between and around the panels. We reseal them with a sealant suited to the panel material.
Render joints
Cracks along render joints let water in behind the coat. A sound joint keeps the render dry behind.
Places near Roffey
What else we do in Roffey
Why deal with it now?
An open joint keeps letting water into the wall with every downpour. Wet masonry is more easily damaged by frost, so the problem grows beyond the joint itself. In a smaller place like Roffey, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
Why choose Mr Mastic in Roffey
- Approved under the ARBOMaster scheme
- Old sealant always removed completely
- More than 20 years in sealant work
- We’re fully insured
Take a look at what affects the cost or our reviews.
Keeping the joints in good condition
Joint life depends on how it’s used and looked after. We suggest:
- Do not let climbing plants root in the sealant
- Make sure movement joints are not pointed over
- Leave the joints unpainted unless we’ve said otherwise
- Look over the joints every year, ideally after winter
Only paint over the joint if we have confirmed the sealant can take paint. Paint can crack on a flexible joint, and paint can crack as the joint moves.
If you can see gaps, plants or bare sections in a joint, have it checked. Earlier resealing means a smaller job and a better result.
What we are called out for in Roffey
Buildings move more than people expect. Clay bricks expand slightly over their life, concrete and block shrink, and everything moves with temperature and wet. The sealant in the movement joints takes that strain.
It’s worth asking for a quote if you see:
- Sealant pulling away from one side of the joint
- Failed sealant between panels on a façade
- Damp patches traced to an open external joint
- Rigid filler in a joint that should flex
Letting a property close to Littlehaven station? Then failed wall and movement joints let damp in, so they’re worth checking between tenancies.
What your quote should include
- What product goes in the joint
- How the colour is chosen
- What insurance they hold
- Who turns up on the day
Roffey buildings and the weather
London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
In the older streets around All Saints Church, older walls, gutters and the joints where extensions meet them need a flexible sealant. Schools such as Northolmes Junior School are buildings too, and movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Roffey is about 1 mile north-east of Horsham, in West Sussex. Jobs in Roffey get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Roffey is one of 371 places in West Sussex where we work.
Every address in RH12 and RH13 is within our area for external mastic, from the main roads to the quietest streets. You will find streets such as Innes Road, Agate Lane and Manor Road, and we cover them all. Neighbouring places we cover for external mastic include Mannings Heath (2 miles south), Faygate (2 miles north-east), Colgate (2 miles east), Monk's Gate (3 miles south) and Kilnwood Vale (3 miles north-east). Further out, we also cover Crawley (5 miles north-east), Haywards Heath (10 miles south-east), Burgess Hill (11 miles south-east), East Grinstead (13 miles east), Broadfield (4 miles east) and Storrington (12 miles south-west).
Near you in Roffey
We work in homes and buildings around Bohunt Horsham and Millais School, among other places. The closest station to Roffey is Littlehaven station, roughly 0.6 miles north-west of the centre. A little further out are Christs Hospital School Museum (3.5 miles south-west) and Horsham Hospital (1.1 miles west). Green spaces nearby include Warnham LNR.
Common questions in Roffey
Is Roffey within the area you cover?
Yes, Roffey is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
I let a flat near Littlehaven station. Can you help?
Yes. We work for letting agents and landlords as well as householders, and several properties can go on one quote. Just phone 0345 464 0079 or drop us an email with the address and what needs doing, and we’ll send you a clear quote.
How do I get a quote for external mastic in Roffey?
Size, access and the old material all affect the cost. Call for a quick quote and we’ll talk you through it.
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.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned before resealing.
How long should I leave it?
Different products cure at different speeds, so follow the cure time we give you.
What should I tell you?
Only a few details: where it is, what you’ve noticed and how we reach it. After that, simply ring 0345 464 0079 or email us.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we are fully insured.
Should I try it myself first?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly.
Sealing over old silicone is the commonest DIY error. Silicone doesn’t stick to old silicone, so it peels away and traps moisture behind it. Everything old must be removed first.
How it works
On the day, there’s very little for you to do. Show us the job and we’ll take it from there. The job generally takes a few hours to a few days, depending on the length of joint and the access, including the tidy-up. For a job in Roffey, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- We start by checking each joint, agreeing the ones to redo and how we will reach them.
- The old mastic and anything lodged in the joint is removed.
- The joint faces are cleaned and primed where the sealant needs it.
- We push in closed-cell backing rod so the sealant is the right depth and bonds to the sides only.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
Before we arrive
- Keep children and pets away from the work area
- Mention if the joints have been sealed before
- Mention any leaks or damp you’ve noticed
Ask for a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or drop us an email.
Related advice
What sealant work can’t fix
In fairness, some problems need a different trade:
- Subsidence or other structural problems
- Walls that need new movement joints cut into them
- Damp that isn’t coming from the joint
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before booking.
Where we work in Roffey
- Joints between brick and frames
- Brickwork movement joints
- Façade panels
- Copings & trims
- Render & cladding joints
- Concrete & block