West Sussex · England
External Mastic in Felbridge
Problem with your movement joints in Felbridge? We remove the old material, prepare the joints and seal them properly, with a one-year guarantee.
- Movement joints filled with mortar instead of sealant
- Damp patches traced to an open external joint
- Moss and dirt in joints with no sealant left
DIY sealant or a professional job?
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.
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it does not work out, we can still put it right.
How we handle external mastic in Felbridge
For buildings in Felbridge, we reseal external joints of all kinds, from brick movement joints to cladding panels. Every joint gets the same careful preparation: clean, sound faces and a controlled depth. If you have damp patches traced to an open external joint and rigid filler in a joint that should flex, we can put it right, on façade panels, copings & trims and render & cladding joints alike.
Outside joints can only be sealed when they’re dry, so work in Felbridge is booked around the forecast. Let us know about access to every wall, plus any garages or outbuildings.
We stand behind the work with a one-year guarantee, so you are not left on your own once the job is done.
- Location
- Felbridge (RH19)
- Wider area
- West Sussex
- Cover
- 12 months on all our work
- Quotes
- A clear price before we start
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Places near Felbridge
Also in Felbridge
What external mastic looks like in Felbridge
With historic houses such as Saint Hill Manor (about 2.5 miles south-east) nearby, there’s older building stock in the area around Felbridge as well as newer homes. Where a home is older, older brick and stone need a sealant that suits them, at the right joint depth. Rainfall in the South East is lower than in much of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
For an older house near a landmark such as St John's Felbridge, older walls, gutters and the joints where extensions meet them need a flexible sealant. For site and facilities teams at buildings such as Felbridge Primary School, movement joints, cladding joints and gutters on larger buildings need the same care as a house’s.
Felbridge is about 2 miles north-west of East Grinstead, in West Sussex. If you need external mastic in Felbridge, please phone 0345 464 0079 or drop us an email for a quick quote. We cover West Sussex from our Crawley base. Felbridge is one of 371 towns and villages in West Sussex where we work for external mastic. You can also see our page for Crawley, about 6 miles away.
Every address in RH19 is covered for external mastic. Whether your property is on London Road, Mciver Close and Cherry Way or anywhere close by, we can help. Neighbouring places we cover for external mastic include Furnace Wood (1 mile west), Domewood (1 mile west), Snow Hill (2 miles west), Newchapel (2 miles north) and Crawley Down (2 miles south-west). Within a short drive, we also cover Crawley (6 miles west), Horsham (13 miles south-west), Haywards Heath (10 miles south), Burgess Hill (13 miles south), Broadfield (7 miles south-west) and Bewbush (8 miles west).
Local landmarks in Felbridge
Around Felbridge, our work takes us to homes and buildings near Bush Davies School of Theatre Arts and Imberhorne School. For rail, the closest station is East Grinstead station, about 1.6 miles south-east. Other landmarks nearby include Effingham Park Motor Museum (1.8 miles west) and Queen Victoria Hospital (2.2 miles east). For a walk, there’s Hedgecourt Lake.
What affects the quote in Felbridge
Jobs vary more than people expect. The main factors:
- How much old sealant there is and how hard it is to remove
- Whether the work is at height
- When we can work, for business premises
- The product the joint needs
Commercial jobs are quoted on the same basis as homes: the amount of work, the access and the products needed, along with when we can work on site. Call for a quick quote and we will go through it with you.
What we need to know
A few details help us give you an accurate quote. When you ask for a quote, tell us:
- A few pictures by email, if you can
- The address or postcode of the job
- What’s wrong with the joints now
- Roughly how big the job is
We don’t publish a price list. Instead, your job gets its own clear quote. To arrange one, ring 0345 464 0079 or send us an email.
What we do, step by step
The work is kept neat and contained to the area we’re working on. The job generally takes anything from a few hours to several days, depending on the building, and we tell you how long to leave it before we go. In a small place like Felbridge, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by walking round the building and agreeing the joints and the access.
- Every bit of old sealant and any mortar or debris is cut out.
- The faces are brushed clean and primed where the product requires it.
- Backing rod sized to the joint goes in to set the depth.
- The exterior sealant is applied, tooled and checked along its length.
Preparing for the visit
- Tell us about access, such as stairs, a lift or high-level joints
- Mention any leaks or damp you’ve noticed
- Where the joints are inside, avoid wetting them before we arrive
Get a quote
Want a quote for external mastic? Please ring 0345 464 0079 or email us and tell us about the job. You will know what we plan to do, and what it will cost, before any work begins.
Related advice
Landlords, agents and businesses in Felbridge
Businesses can book us for washrooms, kitchens, offices and more. On commercial sites, working times can be discussed when we quote.
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Looking after it afterwards
To keep the joints looking good and working properly:
- Wash walls gently around the sealant
- Have failed joints looked at early
- Keep movement joints as flexible joints, not mortar
- Keep soil, plants and ivy away from the joints
Don’t paint over the new sealant unless we have said the product is paintable. Many exterior sealants aren’t designed to be painted, and paint can crack as the joint moves.
An open movement joint lets rain into the wall every time it pours. Over time it can mean damp inside, stained render or frost-damaged brick which cost more to put right than the joint.
Do you need external mastic in Felbridge?
Using the wrong sealant is another common reason. A high-modulus or general-purpose sealant can be too rigid for a busy joint, so it pulls away from the edges.
It’s worth asking for a quote if you see:
- Failed sealant between panels on a façade
- Brick movement joints where the sealant has split
- Gaps where render, brick and frames meet
- Plants rooting in failed movement joints
Letting a property close to East Grinstead station? Then split movement joints are easy to miss on a rental until damp shows inside.
Comparing quotes
- Which colour the sealant will be
- Are they insured?
- Is the old sealant removed completely?
- How the surfaces are prepared before sealing
Felbridge questions
I let a flat near East Grinstead station. Can you help?
Yes. We work for letting agents and landlords as well as homeowners, and several properties can be quoted together. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover smaller places like Felbridge?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
Can you quote for more than one area?
Yes. Tell us about everything you’d like done.
Are you ARBOMaster approved?
Yes. We’re ARBOMaster approved, the scheme for applicators of Arbo sealants.
How long should I leave it?
It depends on the product and the conditions. Before we leave, we’ll tell you the cure time.
Should I point up the gap in my brickwork?
No. Mortar locks the joint solid, so the movement cracks the wall elsewhere. Use a flexible sealant with backing rod.
When will the joints need doing again?
That varies with the weather the wall faces, how much it moves and the sealant used. Treat it as a maintenance item and look at it yearly.
What does external mastic cost?
Every job is different, so each one gets its own quote. To get one, ring 0345 464 0079 or email us with a short description of the job.
Why deal with it now?
A failed movement joint lets water into the wall, behind render and cladding. Resealing early keeps the job to the joint itself, rather than the wall around it. In a small place like Felbridge, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
Combining jobs into one visit normally makes better use of the time than several visits, so tell us about everything that needs sealing. You will get one clear quote for the whole job.
Why us?
- Anti-fungal silicone where joints get wet
- ARBOMaster approved applicator
- We agree the colour with you first
- Domestic, commercial and hotel work
Read our cost guide and our reviews.