Greater London · England
Sand Mastic in Royal Docks
Sand mastic for Royal Docks, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Failed mastic on an exposed elevation
- Gaps between timber frames and stone or brick
- Wind and rain getting in round a sash window
Sand mastic in Royal Docks
Traditional burnt sand mastic that sits naturally against stone and brick. It’s a good fit for period properties, where modern sealant can look out of place. We are often asked to deal with gaps between timber frames and stone or brick and tired mastic found when preparing windows for paint, across tenement windows, period & listed homes and stone surrounds.
London homes have every kind of window, from timber sashes in period terraces to aluminium and uPVC in newer blocks. Over the years, the sealant around them shrinks, cracks and pulls away, letting in draughts and water.
A 12-month guarantee comes as standard, so you are not left on your own once the job is done.
- Place
- Royal Docks (E16, E6)
- Wider area
- Greater London
- Cover
- One year on every job
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Updated
- 26 October 2026
How to look after the new joints
Looking after new joints is easy, and it makes a real difference:
- Go gently near the mastic when preparing windows
- Check with your local planning authority if your home is listed
- Inspect the joints round the windows every year or so
- Ask a joiner to look at soft timber first
Check the mastic when you check the paintwork. Catching cracks early keeps repairs small.
Renewing mastic before redecorating saves doing it twice. Paint over cracked mastic only covers it up.
Signs you need sand mastic in Royal Docks
Age is the main cause. Even well-laid mastic needs renewing in time and how long it lasts depends on the weather it faces.
Look out for any of the following:
- Mastic round period door frames that has failed
- Wind and rain getting in round a sash window
- Mastic that needs renewing before redecorating
- A silicone bead on a sash window that spoils the look
Homes close to Church of the Ascension include some older properties, and the joint between an old wall and a newer frame is usually the first place rain gets in.
Before booking anyone
- How hidden problems are handled
- What product goes in the joint
- What insurance they hold
- The length of the guarantee
Sand mastic in Royal Docks: local notes
Compared with the north and west, the South East gets less rain, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. In London conversions and blocks, the lease decides who is responsible for the frames, so check that before you book.
Managing a site like Calverton Primary School? Then the mastic around its windows and doors needs looking after like any other building’s. Rented homes near Custom House station change hands often, and older sash windows in a rental need their mastic kept sound to keep the weather out.
Royal Docks is about 1 mile south-east of Canning Town, in Greater London. Our applicators cover sand mastic for householders, landlords and businesses in Royal Docks, as part of our work across Greater London. Our area takes in 764 places across Greater London, large and small. London is on our list too, about 6 miles from Royal Docks.
Every address in E16 and E6 is within our area for sand mastic. Sand mastic is available to properties on Drew Road, Leyes Road and Camel Road and the roads around them. Royal Docks sits on or near the A1020, so getting to you is simple. Other places close to Royal Docks include Custom House (1 mile west), Silvertown (1 mile south-west), North Woolwich (1 mile south-east), West Silvertown (1 mile west) and Canning Town (1 mile north-west). Larger places within reach include London (6 miles west), City of Westminster (8 miles west), Marylebone (8 miles west), Kensington (11 miles west), St Pancras (7 miles west) and Shoreditch (5 miles west).
What’s near Royal Docks
Locally, jobs take us to homes and businesses close to Royal Docks Academy, Beckton District Park and The Royal Docks Community School, among other places. Royal Docks’s nearest station is Custom House station, roughly 0.7 miles west of the centre. Other landmarks nearby include Albert Dock Seamen's Hospital (under half a mile north-west) and North Woolwich Old Station Museum (1 mile south-east). Not far away are Gilbert's Pit.
Why act early in Royal Docks
Cement-based fillers and modern sealants do not always suit a period surround. Sand mastic matches what was there and that can be important for listed homes. In older London homes, water behind a failed joint soaks into brick and timber without much sign, and once it shows in Royal Docks, the repair is bigger than a sealant job.
What it costs depends on the size of the job, how hard the old material is to remove and how easy the joints are to reach. You will have a clear quote before any work starts.
Why book with us
- Sanitary silicone with an anti-fungal additive in wet areas
- Neat joints and a tidy finish
- We’re fully insured
- Over 20 years’ experience
Take a look at our cost guide or customer reviews.
What happens on the day
You don’t need to clear the whole room or building before we come, just the space around the work. Everything nearby is protected, and the work takes anything from a few hours to a full day, depending on how many windows in most cases. In Royal Docks, as in most of London, parking needs a little planning. It helps if you can point us to a visitor permit or a bay close to the door.
- First we agree which joints need doing.
- Old mastic and any loose material are raked out.
- Deep gaps are packed so the mastic sits at the right depth.
- The sand mastic is mixed and pressed into the joint by hand.
- The surface is finished to suit the stone or brick.
How to prepare
- Plan for the work area to be out of bounds to pets and children
- Tell us if parking is tricky
- Tell us about access, such as stairs, a lift or high-level joints
Get a quote
For a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before we start.
Read more
What affects the quote in Royal Docks
Every job gets its own quote. These are the things that affect it:
- The product the joint needs
- The number of rooms or windows
- Any working-time requirements on site
- How easy the joints are to reach
Rather than a set price list, we price the job in front of us: how many joints, what’s in them now and how we reach them. You’ll know the price before we begin.
What we need to know
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Access, such as stairs, a lift or height
- A few pictures by email, if you can
- If someone has resealed it before
- What’s wrong with the joints now
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and send you a clear quote before we start.
Landlord and commercial work in Royal Docks
Failed sealant is one of the commonest items on a check-out report, and it’s quick to put right between tenancies. We can quote for more than one property at once.
We work for landlords and letting agents as well as householders. Sealant work between tenants is a simple way to keep a property in good order.
Places near Royal Docks
What else we do in Royal Docks
FAQs for Royal Docks
Can parking be tricky for a visit in Royal Docks?
In much of London, parking needs planning: a visitor permit or a bay close to the door helps a lot.
Do you work for landlords with property near Custom House station?
Yes, landlords and agents are among the people we work for. Just phone 0345 464 0079 or email us with the address and what needs doing, and we’ll give you a clear quote.
Do you come to Royal Docks?
Yes. From our base in Crawley, we cover South East England, London and all of Scotland, Royal Docks included.
Will there be a smell?
Possibly a little. Any smell clears as the sealant cures.
Can you do several jobs on one visit?
Yes, we can. More than one area can be quoted together.
How long does sand mastic take to go off?
Not right away. The skin forms first, and the full set comes later, and we’ll tell you what to expect.
Does someone need to be in?
If the work is inside, we need someone to let us in. Once we have agreed the job, you don’t need to watch us work.
Are you fully insured?
Yes. We’re fully insured, with over 20 years’ experience in sealant work.
Honest limits
It helps to know what we can’t do:
- Putty and glazing repairs
- Damaged stone surrounds
- Sashes that need overhauling
Not sure which it is? You can ring 0345 464 0079 or email us and we’ll tell you honestly.
Joints and surfaces we work on
- Tenement windows
- Period & listed homes
- Brick reveals
- Stone surrounds
- Timber door frames
- Sash and case windows