Medway · England
Sand Mastic in Rochester Riverside
Specialist sand mastic for Rochester Riverside: careful preparation, the right product and tidy work. Ask us for a quick quote.
- A silicone bead on a sash window that spoils the look
- Old sand mastic that has cracked, crumbled or fallen out
- Failed mastic on an exposed elevation
When it isn’t the sealant
We’d rather tell you now than do work that won’t last, so here’s what sealant can’t put right:
- Putty and glazing repairs
- Decayed frames that need repair
- Crumbling stone or brickwork round the window
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer.
Where we work in Rochester Riverside
- Stone surrounds
- Brick reveals
- Tenement windows
- Period & listed homes
- Sash and case windows
- Timber door frames
About our sand mastic in Rochester Riverside
A silicone bead around a sash window can look out of place and doesn’t suit the building. Sand mastic is the traditional choice, and we can replace one with the other. We work on brick reveals, period & listed homes and tenement windows, and common reasons people get in touch are mastic worn away on windows facing the weather and window mastic to renew ahead of painting.
Houses in smaller places like Rochester Riverside can stand more in the open than those in a built-up town. That’s hard on the mastic around frames and sills.
Every job is covered by a 12-month guarantee, wherever you are in Medway.
- Where
- Rochester Riverside (ME1, ME2, ME3)
- Wider area
- Medway
- Cover
- 12 months on all our work
- Quote
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Landlords, agents and businesses in Rochester Riverside
We also work for property managers and facilities teams. We can quote a run of properties together, and we are fully insured for the work.
For anyone letting property in or around Rochester Riverside, jobs at different addresses can be quoted together. Send us the addresses and the work at each, and pictures by email help.
What we do, step by step
All our tools and materials come with us in the van, so there’s nothing for you to buy. After a quick look at the joints together, we protect the area and start. It normally takes anything from a few hours to a full day, depending on how many windows. Parking around Rochester Riverside is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- Each surround is checked first.
- We rake out the old mastic and clean the joint.
- Large voids are packed out.
- New sand mastic is applied and shaped by hand.
- We finish the mastic to a tidy line.
Preparing for the visit
- Tell us about any previous sealing or DIY attempts
- Tell us about access, such as stairs, a lift or high-level joints
- For indoor joints, keep the area dry beforehand if you can
Ask for a quote
If you are in Rochester Riverside 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 will agree the price before any work begins.
Related advice
What affects the quote in Rochester Riverside
Some jobs are bigger than they look, and some smaller. What affects the quote:
- Whether the work is at height
- How much old sealant there is and how hard it is to remove
- Which sealant suits the joint
- Whether there’s mould to deal with
There are no prices on our website, because the cost depends so much on the job itself. Call for a quick quote.
Asking for a quote
When you call or email, it’s useful to know:
- How many joints, rooms or windows are involved
- What’s wrong with the joints now
- Photos by email, if that is easy
- Whether it’s a home or a business
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and add photos by email if you can.
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Get any rot dealt with first
- Ask us before painting near the mastic
- Renew mastic before redecorating the windows
- Keep sills and gutters clear so water drains away
Avoid sealing over the mastic with silicone. If anything cracks, get it looked at rather than patching it.
It’s best to renew mastic before painting the windows. Paint over cracked mastic only covers it up.
Sand mastic in Rochester Riverside: local notes
Rochester Riverside 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. Historic houses like Restoration House (about 0.3 miles south-west) are a reminder that the area around Rochester Riverside 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 is traditional sand mastic.
Homes close to Church of St Nicholas include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in. Managing a site like Rochester Riverside Church of England Primary School? Then its window and door frames need their mastic kept sound, just like a home’s. Rented homes near Rochester station change hands often, and any sash windows need sound mastic to keep draughts and rain out.
Rochester Riverside is about 1 mile east of Rochester, in Medway. Anywhere in ME1, we can carry out sand mastic at your property. Rochester Riverside is one of 68 towns and villages in Medway we cover for sand mastic. We also work in Chelmsford, around 24 miles away.
Our applicators cover all of the ME1, ME2 and ME3 postcode area for sand mastic and the streets around it. You will find streets such as Crow Lane, Love Lane and Corys Road, all of which we cover. We also cover the places around Rochester Riverside: Frindsbury (1 mile north), Chatham Waterfront (1 mile south-east), Brompton (1 mile east), Luton (2 miles south-east) and Chatham (3 miles south-east). Within a short drive, we also cover Gillingham (3 miles south-east), Rainham (5 miles south-east), Park Wood (5 miles south-east), Lordswood (4 miles south-east), Twydall (4 miles east) and Hoo St Werburgh (3 miles north-east).
Landmarks near Rochester Riverside
Around Rochester Riverside, our work takes us to homes and buildings near St Michael the Archangel Church, Former Ordnance Store At Chatham Gun Wharf and St John Fisher RC Comprehensive School. Nearby too are Fort Pitt Grammar School (0.7 miles south-east), The Eagle Tavern (under half a mile south-west) and The Paddock (0.8 miles south-east). There’s a railway station in Rochester Riverside itself: Rochester station. A little further out are Huguenot Museum (within half a mile west) and French Hospital (less than half a mile south-west). Open spaces near Rochester Riverside include Gad's Hill and Rede Common.
Leave it or put it right?
Before painting the windows, it pays to renew the mastic. Painting over failed mastic doesn’t seal it, and the new mastic is traditionally left unpainted. Homes in smaller places like Rochester Riverside can face more weather, and failed outside joints let damp into walls. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we’ll go through it with you.
Why Rochester Riverside customers choose us
- Anti-fungal sanitary silicone in wet areas
- Homes, businesses and hotels
- Arbo and Everbuild products
- An ARBOMaster approved applicator
Read our cost guide and customer reviews.
Nearby places to Rochester Riverside
More services for Rochester Riverside
Different surfaces, different methods
Brick reveals
Gaps between frame and brick let in rain and draughts. Renewing the mastic closes it.
Period and listed homes
Period homes look their best with traditional materials, and sand mastic is one of them.
Questions from Rochester Riverside
Does living near the coast affect sand mastic in Rochester Riverside?
Near the sea, outside joints face more wind, rain and salt than they would inland, so the choice of sealant and the preparation matter even more. It’s worth checking the walls that face the sea first.
Will you come out to Rochester Riverside?
Yes, we do. We work across London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Can you match the sealant colour?
Yes. White, clear and grey are common, and other colours are available for many products, and we’ll agree it with you first.
Do you work for letting agents?
Yes. As well as householders, we work for landlords, agents, businesses and hotels across Medway.
Do you have insurance?
Yes. Full insurance covers our work, and we can confirm the details when we quote.
What do you put in the joint?
Quality sealants from brands including Arbo and Everbuild, picked for each joint. We will tell you what we are using and why.
How long does sand mastic take?
Most jobs take a few hours per window, depending on the condition of the joints, including the preparation. We will confirm how long when we quote.
Can I paint the new mastic?
The usual advice is to leave sand mastic unpainted. Ask us before you decorate around it and we’ll talk you through it.