Medway · England
Sand mastic for sash & case windows in Rochester, Medway
Traditional burnt sand mastic around sash and case windows and doors in stone and brick for homeowners, landlords and businesses in Rochester. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Draughts and rain around sash boxes
- Old sand mastic that has cracked, crumbled or fallen out
- Failed mastic on an exposed elevation
Your questions about sand mastic in Rochester
Do you work for landlords with property near Rochester station?
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 will give you a clear price.
Do you cover Rochester for sand mastic?
Yes. Our work covers London and the South East, and Rochester is part of that. You can phone 0345 464 0079 or send us an email and let us know what needs doing.
How long does sand mastic take to harden?
It forms a skin fairly soon, then hardens over a longer period. The weather and joint depth both affect it.
Is it OK to seal over old sealant?
No, because it fails. The old sealant always comes out first, so the new sealant bonds properly.
What is sand mastic?
It’s a mix of sand and a linseed-oil-based binder. It’s built up in the joint by hand and finished to sit neatly against the masonry.
Is it possible to take out silicone and use sand mastic instead?
Normally, yes. With the silicone removed and the joint cleaned, sand mastic is applied by hand.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator, and we’re fully insured.
Can you work on commercial sites?
Yes, regularly. Larger jobs can be planned room by room or area by area to suit the site.
Sand mastic for homes and businesses in Rochester
Across Rochester, we renew sand mastic around sash and case windows. Each joint is raked out, prepared and pointed by hand, finished to suit the masonry. Typical jobs include old sand mastic that has cracked, crumbled or fallen out and mastic round period door frames that has failed, across brick reveals, stone surrounds and sash and case windows.
Around Rochester, many houses have gained conservatories, French doors or replacement windows over time. Each one adds more joints to look after, and those joints age at different rates. Leaks generally start at a sill, a frame head or a glazing joint.
All our work comes with a one-year guarantee.
What we do, step by step
There isn’t much for you to do on the day. Point us to the joints and we will get on with it. The work itself takes a few hours per window, depending on the condition of the joints from start to finish. For a job in Rochester, we need access to where the work is and somewhere nearby to park. For outside work, let us know about side access, gates and any upper-floor joints.
- First, we look at the surrounds with you and agree what needs doing.
- We rake out the old mastic and clean the joint.
- Large voids are packed out first, so the mastic is not too thick.
- The mastic is mixed, pressed into the joint by hand and shaped.
- We dress the surface so it sits neatly against the masonry.
Before we arrive
- Mention any sign-in or site rules at work premises
- Try not to wet indoor joints just before the visit
- Move anything stored near the joints
Ask for a quote
For a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before any work starts.
Related advice
Landlord and commercial work in Rochester
In hotels, rooms out of use cost money, so we plan the work room by room around your bookings where we can. We have worked in hotels as well as homes and businesses.
Housing providers, facilities teams and property managers book us too. We can quote a run of properties together.
Places near Rochester
Also in Rochester
Surface by surface
Period and listed homes
Materials matter on listed and conservation-area homes. Like-for-like sand mastic is usually favoured.
Timber door frames
A neat sand mastic joint round a front door suits a period home.
What we can’t put right
We’d rather tell you now than do work that won’t last, so these are the limits:
- Sash cords, weights and draught-proofing of the sashes
- Crumbling stone or brickwork round the window
- Decayed frames that need repair
Not sure which it is? You can call 0345 464 0079 or send us an email and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Timber door frames
- Sash and case windows
- Stone surrounds
- Brick reveals
- Tenement windows
- Period & listed homes
Sand mastic in Rochester: local notes
Rochester is close to the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around older windows and doors, which can dry out and crack sooner where a building faces the weather. Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
Schools such as Rochester Riverside Church of England Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. In the older streets around Church of St Nicholas, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. Rented homes near Rochester station change hands often, and cracked sand mastic around sash windows lets in the draughts tenants complain about.
Rochester is about 27 miles east of London, in Medway. We carry out sand mastic for homeowners, landlords and businesses in Rochester. Rochester is one of 68 places in Medway where we work. There’s also a page for Chelmsford, roughly 24 miles from Rochester.
We work across the ME2, ME1, ME3 and ME4 postcode area for sand mastic. We cover properties on High Street, Gundolph Square and Station Road. Rochester is on the A2 and A226, so it’s easy for us to get to with everything needed for sand mastic. We also cover the places around Rochester: Strood (1 mile west), Borstal (1 mile south-west), Cuxton (2 miles south-west), Lower Bush (3 miles west) and North Halling (3 miles south-west). Further out, we also cover Gillingham (4 miles east), Chatham (3 miles south-east), Rainham (5 miles south-east), Park Wood (5 miles south-east), Lordswood (4 miles south-east) and Twydall (4 miles east). Rochester is among the bigger towns we cover in Medway.
Local landmarks in Rochester
Locally, jobs take us to homes and businesses close to Former Ordnance Store At Chatham Gun Wharf, Fort Pitt Grammar School and Broomhill Park. Also close by are Temple School (1.2 miles north) and Royal Crown Hotel (within half a mile east). Rochester has its own railway station: Rochester station. Nearby you will also find Rochester Castle (under half a mile east) and Huguenot Museum (under half a mile east). For a walk, there’s Gad's Hill and Rede Common.
Should I try it myself first?
If you’re set on DIY, put the effort into preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
Too much sealant is as bad as too little. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
What happens if it’s left?
Replacing sash windows is a big decision for a period home and on a listed home, consent may be needed. If the frames are sound, renewing the mastic deals with gaps and draughts at the surround. In a family home in Rochester, a failed seal around a bath or a frame lets water into places you cannot see, such as under the floor, behind a panel or into a wall. Whatever the joint, failed sealant only gets worse.
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote.
What you get with us
- We leave the area clean and tidy
- Sanitary silicone with an anti-fungal additive in wet areas
- 180+ five-star Google reviews
- Experience in homes, commercial sites and hotels
Read what affects the cost or our reviews.
Quotes for sand mastic in Rochester
The quote reflects the job in front of us. We take into account:
- How many areas need sealing
- Access and height
- How much old sealant there is and how hard it is to remove
- Whether there’s mould to deal with
Combining jobs into one visit is generally more efficient than separate visits. You will get one clear quote for the whole job.
Helping us quote
To help us quote quickly, let us know:
- The problem you’ve noticed
- The type of property
- How many joints, rooms or windows are involved
- Where the property is
Quotes start with a quick conversation. Describe the problem, the location and the size of the job. Whenever you are ready, call 0345 464 0079 or drop us an email.