Medway · England
Sand mastic for sash & case windows in Higham, Medway
Sand mastic for Higham, by sealant specialists with 20+ years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Mastic dropping out of the joint
- Cement or filler used on old window joints that has cracked
- A silicone bead on a sash window that spoils the look
Sand mastic for homes and businesses in Higham
Sand mastic does not last for ever and gaps open up round the frame. Renewing it closes the gap and tidies the surround. We’re often asked to deal with draughty sash windows at the surround and gaps where the frame meets the masonry, across brick reveals, sash and case windows and tenement windows.
Mastic can only go onto a dry, clean joint, so window work in Higham is booked around the forecast. Tell us about access to every side of the house, including upper-floor windows.
All of our work is guaranteed for twelve months, in Higham and everywhere else we cover.
- Location
- Higham (ME3, DA12)
- Region
- Medway
- Cover
- One year on every job
- Quote
- A clear price before any work starts
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How it works
When we arrive, we look over the joints with you first, so you know exactly what we are doing. We protect the surfaces around the joints before any work begins. The work generally takes a few hours for a single window, longer for several. In a small place like Higham, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- Each surround is checked first.
- The joint is raked out and cleaned.
- We fill deep gaps so the new mastic isn’t too thick.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
How to prepare
- Keep children and pets away from the work area
- Tell us about any previous sealing or DIY attempts
- Move anything stored near the joints
Get a quote
There’s no standard price list. Instead, your job gets its own clear quote. To get started, phone 0345 464 0079 or drop us an email.
Read more
Sand mastic in Higham: local notes
London and the South East are among the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast. With historic houses such as Temple Manor (about 2.3 miles south-east) nearby, there’s older building stock in the area around Higham as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window.
If you let a flat or house near Higham station, older sash windows in a rental need their mastic kept sound to keep the weather out. Managing a site like Higham Primary School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Higham is about 2 miles north-west of Rochester, in Medway. Wherever you are in the ME3 postcode area, our applicators can take on sand mastic. Higham is one of 68 places in Medway we cover. There’s also a page for Chelmsford, roughly 22 miles from Higham.
Every address in ME3 and DA12 is covered for sand mastic, from the main roads to the quietest streets. Streets in the area include Villa Road, Darby Gardens and Ash Crescent. We also cover Gadshill (1 mile south), Lower Higham (1 mile north), Shorne (1 mile west), Shorne Ridgeway (1 mile south-west) and Mockbeggar (2 miles east). We also work in nearby towns such as Gillingham (6 miles south-east), Chatham (5 miles south-east), Rainham (8 miles south-east), Luton (5 miles south-east), Park Wood (8 miles south-east) and Lordswood (7 miles south-east).
Around Higham
Locally, jobs take us to homes and businesses close to Rede Common, Sir John Falstaff Public House and Strood Academy, among other places. The nearest railway station is Higham station, roughly 0.9 miles north-east of the centre. Well-known places in the area include Rochester Castle (2.6 miles south-east) and French Hospital (2.8 miles south-east). Open spaces near Higham include Gad's Hill and Rede Common.
What the job involves on each surface
Period and listed homes
Period homes look their best with traditional materials.
Stone surrounds
The stone is treated with care when the old mastic comes out.
When something else is needed
A few problems are outside what sealant work can do:
- Rotten sashes, sills or window boxes (a joiner’s job)
- Sashes that rattle, stick or will not open
- Cracked or broken glass
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Surfaces we seal
- Sash and case windows
- Timber door frames
- Stone surrounds
- Brick reveals
- Period & listed homes
- Tenement windows
Nearby places to Higham
More services for Higham
Higham: your questions answered
I let a flat near Higham station. Can you help?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll send you a clear quote.
Is Higham in your area for sand mastic?
Yes. Our work covers London and the South East, and Higham is part of that. Just call 0345 464 0079 or email us with a few details of the job.
Do you have insurance?
Yes, we’re fully insured for domestic and commercial work.
Is it OK to seal over old sealant?
No. The old sealant always comes out first, so the new sealant bonds properly.
Can you quote for more than one area?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
Do you guarantee sand mastic work?
Every job comes with our one-year guarantee.
How long does sand mastic take to harden?
It takes a while. It skins first and hardens fully later and we will give you an idea for your job.
Can you replace silicone on a period window with sand mastic?
Often, yes. Once the silicone is out and the joint prepared, sand mastic is applied by hand.
Landlord and commercial work in Higham
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Housing providers, facilities teams and property managers book us too in Higham and across Medway. We can quote a run of properties together, and we’re fully insured.
Can I do it myself?
A DIY attempt doesn’t rule out a professional job. We cut it out and start again, so tell us about it when you ask for a quote.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions.
Do you need sand mastic in Higham?
Rain on the window surround works into any crack and pushes it out. Exposed elevations normally fail first.
Any of these means the joints need attention:
- Draughty sash windows at the surround
- Modern sealant on a period surround
- Cracked mastic round a front door frame
- Weathered mastic on the most exposed windows
If you live in an older home near Church of St John, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Questions to ask before you book
- Whether they’re fully insured
- What the quote includes, VAT included or not
- The length of the guarantee
- Who turns up on the day
Why act early in Higham
Replacing sash windows is a big decision for a period home, and in listed buildings it may need consent. Where the frames are in good order, new mastic seals the surround. Older cottages and farmhouses around Higham can have timber floors and frames, where water from a failed joint can cause rot if it’s left.
Doing several joints on one visit is usually more efficient than separate visits, so it’s worth mentioning everything you’d like done. We’ll send you a clear quote for the lot.
What you get with us
- A 12-month guarantee on all work
- Homes, businesses and hotels
- We never seal over old sealant
- Full insurance on every job