West Sussex · England
Ifield External Mastic
Specialist external mastic for Ifield: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Movement joints with cracked, split or missing sealant
- Plants rooting in failed movement joints
- Sealant that has lost its bond to the brick or render
External mastic for homes and businesses in Ifield
External mastic is a job where short cuts show quickly. Overfilled joints, missing backing rod and sealant laid over old sealant all tend to fail early. We strip the joint back and start again. We work on brickwork movement joints, façade panels and copings & trims, and common reasons people get in touch are water getting into walls through failed joints and movement joints with cracked, split or missing sealant.
Outbuildings, garages and conservatories around homes in places like Ifield add more joints to look after. Leaks usually start at a gutter end, a garage door frame or where an extension meets the house.
You are covered for a year from the day we finish. If anything is not right with it, call 0345 464 0079 or drop us an email.
- Where
- Ifield (RH11, RH10)
- Region
- West Sussex
- Cover
- 12 months on all our work
- Quote
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Aftercare tips
To keep the joints looking good and working properly:
- Never let anyone fill a movement joint with mortar
- Act on the first splits you see
- Point out the joints to other trades
- Clear growth from the base of walls and joints
Do not paint over the new sealant unless we have said the product is paintable. Many exterior sealants are not designed to be painted and spoil the finish.
Gaps, plants or missing sealant in a joint are worth getting looked at. Early work is quicker and leaves a better finish.
FAQs for Ifield
Is Ifield within the area you cover?
Yes, smaller places are covered as well as towns. We work across London and the South East. Just mention lanes, gates or anything else about the route when you book.
Should the sealant in an older Ifield home be renewed?
If it hasn’t been replaced for some years, it’s usually worth it. Sealant is a maintenance item: how long it lasts depends on use, cleaning and exposure, and many homes in Ifield may already be on their second or third set.
What’s an expansion joint in brickwork?
A vertical gap in a long brick wall is usually a movement joint. It gives the wall room to move.
Where is Mr Mastic based?
Our base is in Crawley, West Sussex, and we work across South East England, London and Scotland.
How long does external mastic take?
As a guide, most jobs take anything from a few hours to several days, depending on the building. Larger jobs naturally take longer, and we’ll tell you how long to expect.
I rent my home. Can I book you?
Yes. Check with your landlord; we can send the quote to them too.
Do you use backing rod?
That is backing rod, a closed-cell foam. It keeps the sealant at the right depth and bonded to the sides only so it can flex with the joint.
Do you have insurance?
Yes. We’re fully insured for domestic and commercial work.
Can I do it myself?
Not every job suits DIY: work at height, external movement joints, fire-rated sealant and large areas call for the right materials, safe access and experience.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
Do you need external mastic in Ifield?
Buildings move more than people expect. Brickwork grows a little over the years, blockwork and concrete shrink, and all of it moves with heat and moisture. All of that ends up in the joint sealant.
People usually contact us after spotting something like this:
- Movement joints with cracked, split or missing sealant
- Damp patches traced to an open external joint
- Joints where the bead has come unstuck
- Cracked joints where brick meets render or frames
For an older house near a landmark such as St Margaret's Church, an extension built onto an older house moves differently, and the joint between them takes the strain.
What to look for in a quote
- What happens if the job turns out different
- Which colour the sealant will be
- How long the guarantee is
- Whether the sealant suits the joint
What affects the cost of external mastic
We quote each job individually. This is what makes a difference:
- Whether the work is at height
- Any mould that needs treating
- The amount of work
- Whether old sealant or filler has to be cut out
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. You will know the price before we begin.
Helping us quote
You do not need to know the technical terms. Just tell us:
- Any previous sealing or DIY work
- Any access issues, like height or stairs
- What’s wrong with the joints now
- A few pictures by email, if you can
Call for a quick quote, or send an email if you’d rather. Tell us about the joints that need doing and we will talk you through the work before giving you a price.
Towns and villages near Ifield
Other services in Ifield
What the job involves on each surface
Render joints
Render is weaker at the surface than brick, so a low-modulus sealant is kinder to the joint edges. Priming is done where the sealant calls for it.
Cladding and façade panels
Cladding and façade panels are generally separated by sealed joints. Each joint gets a sealant that suits the panel and its movement.
Landlords, agents and businesses in Ifield
We also work for property managers and facilities teams. We can quote a run of properties together, and we are fully insured for the work.
We also work for businesses, from offices to washrooms and kitchens. For commercial premises, we can talk through working times when we quote.
How the visit works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours to a few days, depending on the length of joint and the access, and the area is left clean. In a smaller place like Ifield, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We inspect the joints and agree which need resealing and how they’ll be reached.
- We cut out the failed sealant and rake out any dirt or growth.
- The joint faces are cleaned and primed where the sealant needs it.
- Closed-cell backing rod is fitted to set the depth and stop three-sided bonding.
- The new sealant, chosen to suit the brick or render, is applied and tooled to a neat finish.
How to prepare
- Mention any tricky access
- Where the joints are inside, avoid wetting them before we arrive
- Clear the area around the work
How to get a quote
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Read more
What external mastic looks like in Ifield
Ifield is part of Crawley, one of the post-war new towns. Homes here were built in phases, many of them in the post-war decades, so neighbouring houses often have rooflines and wall joints of the same age, wearing out at the same time. Rainfall in the South East is lower than in much of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For landlords with property near Ifield 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 Margaret's CofE Primary School, its movement joints, gutters and trims need looking after like any other building’s.
Ifield is about 1 mile north-west of Crawley, in West Sussex. We carry out external mastic for homes and businesses in Ifield, as part of our work across West Sussex. Across West Sussex, we cover 371 places, Ifield among them.
Work in RH11 and RH10 is quoted and booked the same way as anywhere else. If you need external mastic at a property on Mill Lane, Hare Lane and Brock Road or anywhere close by, our applicators can take on the job. Nearby, we also carry out external mastic in Gossops Green (1 mile south), Ifieldwood (1 mile west), Bewbush (1 mile south-west), Russ Hill (2 miles north-west) and Charlwood (2 miles north). Larger places within reach include Horsham (6 miles south-west), Haywards Heath (10 miles south-east), Burgess Hill (12 miles south), East Grinstead (9 miles east), Billingshurst (13 miles south-west) and Roffey (5 miles south-west).
Local landmarks in Ifield
In Ifield, that means homes and buildings near Ifield Community College, Target Hill Park and St Wilfrid's Catholic School and the streets around them. Ifield’s nearest station is Ifield station, about 0.6 miles south-west. A little further out are Crawley Hospital (0.6 miles south-east) and County Mall (1.2 miles south-east). For a walk, there’s Tilgate Lake.