Medway · England
Sand Mastic in Frindsbury
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Frindsbury. Fully insured, ARBOMaster approved and guaranteed for a year.
- Cracked mastic round a front door frame
- Draughty sash windows at the surround
- Crumbling sand mastic round a window
Common questions in Frindsbury
I let a flat near Strood station. Can you help?
Yes, landlords and agents are among the people we work for, and several properties can go on one quote. You can phone 0345 464 0079 or send us an email with the details for a clear quote.
Does living near the coast affect sand mastic in Frindsbury?
Coastal weather is harder on outside sealant: there’s more wind-driven rain and, closer to the shore, salt in the air. Choosing the right sealant for the frame and wall, laid at the right depth, helps it last.
Do you work in Frindsbury?
Yes. From our base in Crawley, we cover South East England, London and all of Scotland.
Do you do commercial work?
Yes, regularly. Larger jobs can be planned room by room or area by area.
Is it possible to paint over sand mastic?
Traditional guidance is not to paint over sand mastic. If you are redecorating the window, ask us first and we will talk you through it.
What is sand mastic?
It’s sand mixed with a linseed-oil-based binder for the joint between timber frames and masonry.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
Is consent needed for window work on a listed home?
It’s best to ask your local planning authority first. Sand mastic is often favoured as like for like but the decision is theirs.
About our sand mastic in Frindsbury
If your home is listed or in a conservation area, check with your local planning authority whether consent is needed for work to windows. Like-for-like sand mastic is often the preferred finish. We work on timber door frames, brick reveals and sash and case windows, and people most often call us about tired mastic found when preparing windows for paint and wind and rain getting in round a sash window.
Houses in smaller places like Frindsbury can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. The mastic around frames on those walls tends to age faster.
The work is guaranteed for twelve months. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Location
- Frindsbury (ME2, ME1)
- Region
- Medway
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
DIY sealant or a professional job?
If you’ve already had a go yourself, that’s fine. We cut it out and start again, so just mention it when you contact us.
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.
Aftercare tips
To keep the joints looking good and working properly:
- Check the mastic when you check the paintwork
- Clear gutters so water does not pour onto the windows
- Ask a joiner to look at soft timber first
- Don’t paint over the new mastic
Avoid painting over the new mastic, as traditional guidance advises. If you’re redecorating, ask us first.
Once mastic starts to crumble, rain gets in. That water can reach the timber frame and the wall, so renewing it early is worth it.
The process
We work through the job in order: protection first, then preparation, sealing and a tidy-up. For most jobs that takes a few hours for a single window, longer for several and we leave things clean and tidy. In a smaller place like Frindsbury, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- We start by checking each surround and agreeing the joints to renew.
- Old, loose mastic is raked out and the joint cleaned.
- Large voids are packed out first, so the mastic isn’t too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The mastic is finished to sit tidily against the stone or brick.
Before we arrive
- For business premises, tell us about site rules or sign-in
- Keep children and pets away from the work area
- Clear items away from the joints we are working on
Get a quote
It all starts with a short chat. Tell us what’s wrong, where it is and how much there is. When it suits you, phone 0345 464 0079 or send us an email.
Advice
Sand mastic in Frindsbury: local notes
Frindsbury is close to the coast, where wind-driven rain is a fact of life and, nearer the shore, so is salt air. That is hard on the mastic around older windows and doors, especially on the side facing the sea. Historic houses like Restoration House (about 0.9 miles south) are a reminder that the area around Frindsbury has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
Managing a site like English Martyrs' Catholic Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Strood station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about. Homes close to All Saints Church include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Frindsbury is about 1 mile north-east of Rochester, in Medway. Whether you’re in the middle of Frindsbury or further out, we cover sand mastic for every kind of property. 68 places in Medway are on our list, large and small. Chelmsford is on our list too, around 23 miles away.
Jobs for sand mastic in ME2 and ME1 works the same way as everywhere else we cover. Local streets include Mill Road, Grove Road and Bowes Road, and we cover them all. Being close to the A289, Frindsbury is easy for our applicators to reach. We also cover Rochester Riverside (1 mile south), Brompton (1 mile south-east), Chatham Waterfront (1 mile south-east), Luton (2 miles south-east) and Chatham (3 miles south). We also work in nearby towns such as Gillingham (4 miles south-east), Rainham (5 miles south-east), Park Wood (5 miles south-east), Lordswood (5 miles south), Twydall (4 miles south-east) and Hoo St Werburgh (3 miles north-east).
Around Frindsbury
We work in homes and buildings around Broomhill Park, Former Ordnance Store At Chatham Gun Wharf and Fort Pitt Grammar School, among other places. You will also find Temple School (0.8 miles north-west) and The Bell pub (under half a mile north-west). There’s a railway station in Frindsbury itself: Strood station. Well-known places in the area include Pentagon Shopping Centre (1.4 miles south-east) and French Hospital (0.8 miles south). Not far away are Rede Common and Gad's Hill.
Why deal with it now?
Filling over old, loose mastic does not last. We remove the loose material first so the new mastic stays put. In an older home around Frindsbury, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
No two jobs are quite the same, so we quote each one individually. The number of joints, how easy they are to reach and the sealant needed all play a part.
What you get with us
- Anti-fungal sanitary silicone in wet areas
- Every job guaranteed for a year
- Quality sealants from Arbo and Everbuild
- Fully insured
What affects the cost of sand mastic
We don’t publish a price list, because jobs vary so much. What we look at:
- Working hours on commercial sites
- Mould in or behind the old joints
- The type of sealant required
- How many rooms, windows or areas are involved
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, ring 0345 464 0079 or drop us an email for an honest opinion and a quote.
Asking for a quote
The more you tell us, the more accurate the quote. When you ask for a quote, tell us:
- Roughly how big the job is
- What’s wrong with the joints now
- Any access issues, like height or stairs
- Whether it’s a home or a business
Need a quote? Please ring 0345 464 0079 or send us an email with a few details. We will explain what we’d do and give you a clear quote before any work starts.
Work for landlords, hotels and businesses
In hotels, rooms out of use cost money, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
For anyone letting property in or around Frindsbury, jobs at different addresses can go on one quote. Just tell us the addresses and what each one needs.
What sealant work can’t fix
Sealant is not the answer to every problem, and we’d rather say so up front. Sealant will not put right:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Crumbling stone or brickwork round the window
- Cracked or broken glass
Not sure which it is? You can phone 0345 464 0079 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Brick reveals
- Sash and case windows
- Period & listed homes
- Timber door frames
- Tenement windows
- Stone surrounds