West Sussex · England
Sand mastic for sash & case windows in Felcourt, West Sussex
Problem with your window and door surrounds in Felcourt? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Failed mastic on an exposed elevation
- Crumbling sand mastic round a window
- Wind and rain getting in round a sash window
Landlords, agents and businesses in Felcourt
In hotels, rooms out of use cost money, so the work can be planned room by room. We have worked in hotels as well as homes and businesses.
If you manage several properties in or around Felcourt, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and photos by email help.
Sand mastic for homes and businesses in Felcourt
For a listed home or one in a conservation area, ask your local planning authority whether consent is needed for work to windows. Sand mastic is often favoured as a like-for-like material. Typical jobs include modern sealant on a period surround and window mastic to renew ahead of painting, across period & listed homes, sash and case windows and timber door frames.
Mastic can only go onto a dry, clean joint, so window work in Felcourt is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
Every job is covered by a 12-month guarantee, wherever you are in West Sussex.
- Place
- Felcourt (RH19, RH7)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Frames and glazing around Felcourt
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. Historic houses like Saint Hill Manor (about 3.7 miles south) are a reminder that the area around Felcourt has older buildings as well as new. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
Rented homes near Dormans station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out. Schools such as Bush Davies School of Theatre Arts are buildings too, and larger buildings have plenty of frames, and the mastic around each one ages.
Felcourt is about 2 miles north of East Grinstead, in West Sussex. For sand mastic in and around Felcourt, please call 0345 464 0079 or send us an email for a quick quote. We are based in Crawley and cover West Sussex. Felcourt is one of 371 places in West Sussex where we work. There’s also a page for Crawley, about 8 miles away.
Our applicators cover all of the RH19 and RH7 postcode area for sand mastic. Whether your property is on Felcourt Lane, Felcourt Road and Blackberry Road or a nearby road, our applicators can take on the job. If you are just outside Felcourt, we cover Dormans Park (1 mile south-east), Newchapel (1 mile west), Lingfield (1 mile north), Dormansland (1 mile east) and Felbridge (2 miles south-west). We also work in nearby towns such as Crawley (8 miles south-west), Horsham (14 miles south-west), Haywards Heath (12 miles south), Burgess Hill (15 miles south), Broadfield (9 miles south-west) and Bewbush (9 miles south-west).
What’s near Felcourt
Typical jobs here are in homes near Centenary Fields and Imberhorne School and the streets around them. For rail, the closest station is Dormans station, about 0.8 miles east of the centre. A little further out are Queen Victoria Hospital (1.9 miles south-east) and East Grinstead Museum (2.5 miles south). For a walk, there’s Hedgecourt Lake.
Aftercare tips
How long the joints last depends on use and care. We suggest:
- Do not paint over the new mastic
- Clear gutters so water does not pour onto the windows
- Avoid heavy scraping on the mastic joint
- Check the mastic when you check the paintwork
Look at the mastic when you look over the windows. Catching cracks early keeps repairs small.
Crumbling mastic lets rain into the joint. It can soak into the frame and the surrounding masonry so early renewal protects both.
Quotes for sand mastic in Felcourt
The price is agreed before any work begins. It takes into account:
- Working hours on commercial sites
- The size of the job
- The number of rooms or windows
- How much old sealant there is and how hard it is to remove
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
What we need to know
Before you ask for a quote, have a think about:
- Roughly how big the job is
- If someone has resealed it before
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints.
Leave it or put it right?
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic is the traditional material and blends with the stone or brick. In a small place like Felcourt, homes can be exposed to wind and rain, which finds any gap, and damp in older walls is slow to dry out.
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or drop us an email and we will talk you through it.
Why Felcourt clients choose us
- Any old sealant cut out fully, not covered over
- Rated 4.9 stars on Google
- Homes, businesses and hotels
- We leave the area clean and tidy
Towns and villages near Felcourt
What else we do in Felcourt
Common questions in Felcourt
Can you do sand mastic in Felcourt?
Yes, Felcourt is within the area we cover. Our work covers London and the South East. You can call 0345 464 0079 or drop us an email and let us know what needs doing, and we will give you a clear price.
Is Felcourt 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.
Can you match the sealant colour?
Generally, yes. Sealants come in white, clear, grey and other colours for many products, and we will agree it with you first.
Are you insured?
Yes. Full insurance covers our work.
Is it worth trying it myself?
Sometimes. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Which is right for my windows, sand mastic or modern sealant?
Sand mastic normally suits period timber windows best. On modern frames, we’d normally use a flexible sealant.
Is it OK to seal over old sealant?
No. The old sealant always comes out first.
Surface by surface
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It suits older brickwork.
Timber door frames
Period doors in stone or brick openings are often pointed with sand mastic. The method is the same as for windows.
When to call us in Felcourt
Water gets into small cracks in the mastic and loosens it further. Exposed elevations usually fail first.
Any of these means the joints need attention:
- Draughts and rain around sash boxes
- Gaps round a timber door in stone or brick
- Mastic that needs renewing before redecorating
- Gaps between timber frames and stone or brick
Historic houses such as Saint Hill Manor, about 3.7 miles south, show how far back building around Felcourt goes, and older homes nearby need a sealant that suits their walls.
What to look for in a quote
- What guarantee comes with the work
- How the joint is cleaned and prepared
- How much experience the applicator has
- Is the old sealant removed completely?
The process
Every visit runs the same way: we look at the joints together, mask and protect the surrounding surfaces, do the work and tidy away. It normally takes a few hours for a single window, longer for several. Somewhere like Felcourt needs a little journey planning: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We look at the surrounds with you and agree the joints to renew.
- Old mastic and any loose material are raked out.
- We pack any deep voids first.
- We apply the mastic by hand and shape it.
- The surface is finished to suit the stone or brick.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Let us know about parking restrictions
- Clear the area around the work
Getting a quote
We quote each job on its own, so start by telling us what you need. Just call 0345 464 0079 or send us an email with the details.