East Sussex · England
Sand Mastic in Founthill
Professional sand mastic in and around Founthill, with old sealant always removed completely and a 12-month guarantee.
- Silicone on a period window that looks wrong
- Gaps where the frame meets the masonry
- Cracked mastic round a front door frame
Sand mastic for homes and businesses in Founthill
Burnt sand mastic is a traditional material blends with stone and brick surrounds. It’s a good fit for period properties, where modern sealant can look out of place. We work on period & listed homes, timber door frames and sash and case windows, and common reasons people get in touch are draughty sash windows at the surround and failed mastic on an exposed elevation.
Around Founthill, many homes face open ground, so their windows and doors take the full weather. That exposure dries out and cracks the mastic around frames and sills faster.
A one-year guarantee comes with the work, just as it does everywhere we cover.
- Location
- Founthill (BN8)
- Wider area
- East Sussex
- Guarantee
- 12 months on all our work
- Quotes
- A clear price before work begins
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
Why act early in Founthill
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic is the traditional material and blends with the stone or brick. Around Founthill, older homes often have timber in their floors and frames, where water from a failed joint can cause rot if it’s left.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you’re unsure, ring 0345 464 0079 or email us and we will give you an honest view and a quote.
Why Founthill clients choose us
- Every job guaranteed for a year
- Any old sealant cut out fully, not covered over
- Anti-fungal silicone where joints get wet
- Experience in homes, commercial sites and hotels
See our cost guide and customer reviews.
When to call us in Founthill
Scraping and sanding before painting can loosen old mastic. It’s often found when windows are being prepared for paint, which is a good time to renew it.
If you can see any of these, it’s time to have the joints looked at:
- Open joints round the window box
- Cracked mastic round a front door frame
- Cement or filler used on old window joints that has cracked
- Mastic that needs renewing before redecorating
For an older house near a landmark such as The Parish Church of St Mary, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before you book anyone
- Whether they seal over old material or remove it
- What the cure time is
- Who turns up on the day
- Whether the sealant suits the joint
FAQs for Founthill
Do you work for landlords with property near Uckfield station?
Yes, we work for landlords and letting agents. You can call 0345 464 0079 or send us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Will you come out to Founthill?
Yes, Founthill is covered. 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 I choose the sealant colour?
Yes. Sealants come in white, clear, grey and other colours for many products, and we will agree it with you first.
Do you work for hotels and businesses?
Yes. We’ve worked for hotels, offices and other businesses.
Will it make a mess?
Very little: the area around the joints is protected first, and we tidy up before we go.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Will there be a smell?
Sometimes, a little. It fades as the sealant cures.
How long will you be here?
It depends on the size of the job, but most jobs take a few hours per window, depending on the condition of the joints. We will tell you when we quote.
Windows and doors in Founthill
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.
Schools such as Newick Church of England Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. If you let a flat or house near Uckfield station, cracked sand mastic around sash windows lets in the draughts tenants complain about.
Founthill is about 3 miles west of Uckfield, in East Sussex. For sand mastic in and around Founthill, it’s easy to get a quote: please call 0345 464 0079 or email us. We’re based in Crawley and cover East Sussex. Our East Sussex coverage runs to 289 places, and Founthill is one of them. We also work in Brighton, about 11 miles from Founthill.
Jobs for sand mastic in BN8 is quoted and booked the same way as anywhere else. We also cover Newick (1 mile north-west), Chailey (1 mile west), North Chailey (2 miles west), South Street (2 miles south-west) and Mount Pleasant (2 miles south). Larger places within reach include Seaford (13 miles south), Lewes (6 miles south), Hailsham (12 miles south-east), Crowborough (9 miles north-east), Uckfield (3 miles east) and Newhaven (12 miles south).
What’s near Founthill
We work in homes and buildings around The Royal Oak Inn and the streets around them. For rail, the closest station is Uckfield station, about 3.3 miles east. Nearby you will also find Uckfield Community Hospital (3.7 miles east) and Heaven Farm Museum (3.9 miles north).
For landlords and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room. Hotel work is part of what we do, alongside homes and businesses.
From a single let to a portfolio, the work is the same standard: old sealant fully removed, joints prepared properly and a 12-month guarantee.
What we do, step by step
The work is kept neat and contained to the joints we are treating, so you can get on with your day. Expect the work to take a few hours per window, depending on the condition of the joints, and we tell you how long to leave it before we go. For a village or hamlet like Founthill, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- We point the joint with sand mastic by hand.
- The finish is dressed neatly.
Preparing for the visit
- Keep children and pets away from the work area
- Let us know about earlier repairs to the joints
- Try not to wet indoor joints just before the visit
How to get a quote
Want a quote for sand mastic? Please ring 0345 464 0079 or drop us an email with a few details. You will know what we plan to do, and what it will cost, before any work begins.
Advice
Nearby places to Founthill
More services for Founthill
Different surfaces, different methods
Brick reveals
Brick reveals round timber windows are often pointed with sand mastic. It gives a traditional finish.
Stone surrounds
Stone openings are rarely perfectly straight, so the joint varies in width. Sand mastic is shaped by hand to suit.
DIY versus a professional finish
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
Honest limits
New sealant can’t fix everything, and we’d rather say so up front. It won’t solve:
- Cracked or broken glass
- Masonry that needs repairing
- Planning or listed building consent (your local planning authority decides)
Not sure which it is? You can ring 0345 464 0079 or drop us an email and we’ll tell you honestly before booking.
What we seal
- Timber door frames
- Tenement windows
- Brick reveals
- Sash and case windows
- Period & listed homes
- Stone surrounds