West Sussex · England
Sand Mastic in Felbridge
We cover Felbridge for traditional burnt sand mastic around sash and case windows and doors in stone and brick. Old material cut out, joints cleaned and sealed neatly and a 12-month guarantee.
- Mastic worn away on windows facing the weather
- Gaps round a timber door in stone or brick
- Old cement repairs round a window that have failed
For landlords and businesses
Letting agents and landlords in Felbridge can book us as well as householders. Resealing between tenancies keeps a property looking cared for 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.
Sand mastic for homes and businesses in Felbridge
Traditional burnt sand mastic blends with stone and brick surrounds. It suits period and listed homes where a modern sealant bead would stand out. If you have modern sealant on a period surround and old cement repairs round a window that have failed, we can help.
Mastic can only go onto a dry, clean joint, so window work in Felbridge is booked around the forecast. Let us know about access to all the frames, upstairs ones included.
There’s a 12-month guarantee on every job, large or small.
- Where
- Felbridge (RH19)
- Wider area
- West Sussex
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
When we get to you, we check the joints match what you told us. If we find something unexpected, we talk it through with you first. Most jobs then take anything from a few hours to a full day, depending on how many windows. In a small place like Felbridge, access is generally the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- We start by checking each surround and agreeing the joints to renew.
- The loose and crumbling mastic is raked out and the joint cleaned.
- Deep voids are packed so the mastic is the right thickness.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Getting ready for the visit
- Mention if the joints have been sealed before
- Clear items away from the joints we are working on
- For business premises, tell us about site rules or sign-in
Get a quote
If you’re in Felbridge and need sand mastic, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Advice
Windows and doors in Felbridge
London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. Historic houses like Saint Hill Manor (about 2.5 miles south-east) are a reminder that the area around Felbridge has older buildings as well as new. Where a home is older, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you live in an older home near St John's Felbridge, the joint between an old wall and a newer frame is normally the first place rain gets in. Managing a site like Felbridge Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
Felbridge is about 2 miles north-west of East Grinstead, in West Sussex. We provide sand mastic to householders, landlords and businesses in Felbridge and nearby. Our West Sussex coverage runs to 371 places, Felbridge among them. There’s also a page for Crawley, about 6 miles away.
All of RH19 is within our area for sand mastic, from the main roads to the quietest streets. If you need sand mastic at a property on London Road, Mciver Close and Cherry Way or anywhere close by, we can help. Other places close to Felbridge 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).
Landmarks near Felbridge
Typical jobs here are in homes near Bush Davies School of Theatre Arts and Imberhorne School and the streets around them. For rail, the closest station is East Grinstead station, about 1.6 miles south-east of the centre. Nearby you will also find Effingham Park Motor Museum (1.8 miles west) and Queen Victoria Hospital (2.2 miles east). Green spaces nearby include Hedgecourt Lake.
What happens if it’s left?
A silicone bead can be quicker, but on period stone or brick it often looks out of place. Sand mastic suits the building and finishes neatly against the masonry. In a small place like Felbridge, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
No two jobs are quite the same, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all play a part, and we’ll explain the quote if you ask.
Why choose Mr Mastic in Felbridge
- 4.9 on Google from 180+ five-star reviews
- Every job guaranteed for a year
- Old sealant always removed completely
- Full insurance on every job
Nearby places to Felbridge
Other services in Felbridge
How the job changes by surface
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Sash and case windows
Most of our sand mastic work is on sash windows. Each joint round the box is raked out and renewed.
Should I try it myself first?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is.
Some sealant jobs are within reach of a careful DIYer, 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.
What we can’t put right
Honest advice matters more to us than a booking, so here’s what new sealant won’t do:
- Sash cords, weights and draught-proofing of the sashes
- Whether work needs listed building consent
- Timber that has rotted
Not sure which it is? You can phone 0345 464 0079 or send us an email and we will tell you honestly.
What we seal
- Tenement windows
- Period & listed homes
- Stone surrounds
- Brick reveals
- Timber door frames
- Sash and case windows
Questions from Felbridge
Is Felbridge within the area you cover?
Yes, smaller places are covered as well as towns. Our work covers London and the South East. Just mention lanes, gates or anything else about the route when you book.
Do you cover Felbridge for sand mastic?
Yes. We work across London and the South East, and Felbridge is part of that. Just call 0345 464 0079 or email us with a few details of the job, and we’ll give you a clear quote.
Can I paint the new mastic?
It’s traditionally left unpainted, which is what traditional guidance recommends. Talk to us before any painting near it.
Which is right for my windows, sand mastic or modern sealant?
It depends on the window. Period windows in stone or brick usually suit sand mastic, while modern frames normally get a flexible sealant.
What do you need from me for a quote?
A short description and the location. If we need more, we will ask.
Can old silicone round a sash window be swapped for sand mastic?
Often, yes. Once the silicone is out and the joint prepared we point it with sand mastic.
Are you fully insured?
Yes. Full insurance covers our work.
Can I add another job to the visit?
Yes. Just list everything you need and we’ll quote it together.
Common problems we fix in Felbridge
Age is the main cause. Sand mastic is a maintenance item like any pointing and how long it lasts depends on the weather it faces.
It’s worth asking for a quote if you see:
- Draughty sash windows at the surround
- Cracked mastic round a front door frame
- Open joints round the window box
- A silicone bead on a sash window that spoils the look
If you let a flat or house near East Grinstead station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
What to look for in a quote
- What guarantee comes with the work
- How much experience the applicator has
- Whether all the old sealant comes out first
- Whether they’re fully insured