Greater London · England
Ickenham Sand Mastic
Sand mastic in Ickenham from a team with over 20 years’ experience. 180+ five-star Google reviews and a 4.9 rating.
- Open joints round the window box
- Silicone on a period window that looks wrong
- Mastic dropping out of the joint
Sand mastic in Ickenham: local notes
In a converted house or block, who looks after the windows depends on the lease, so check that before booking. 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.
Letting a property close to West Ruislip station? Then older sash windows in a rental need their mastic kept sound to keep the weather out. If you look after a building such as The Douay Martyrs Catholic School, its window and door frames need their mastic kept sound, just like a home’s.
Ickenham is about 1 mile north of Hillingdon, in Greater London. For sand mastic in and around Ickenham, please call 0345 464 0079 or send us an email for a quick quote. We’re based in Crawley and cover Greater London. We cover 764 towns and villages across Greater London, from the larger towns to small villages. Our London page covers work nearby.
Postcode districts we cover here for sand mastic: UB10. Streets in the area include Long Lane, Court Road and The Avenue, all of which we cover. Close by, we work in Hillingdon (1 mile south), Ruislip Gardens (2 miles east), New Denham (2 miles west), Newyears Green (2 miles north) and Uxbridge (2 miles south-west). Further out, we also cover City of Westminster (13 miles east), Marylebone (13 miles east), Kensington (11 miles east), St Pancras (14 miles east), Hampstead (12 miles east) and Brompton (13 miles east).
Near you in Ickenham
In Ickenham, that means homes and buildings near Glebe Primary School, Church Field Gardens and Vyners School, among other places. For rail, the closest station is West Ruislip station, about 0.9 miles north-east. Other landmarks nearby include Hillingdon Hospital (2.3 miles south) and The Chimes (1.4 miles south-west). Open spaces near Ickenham include Northala Fields and Horse Shoe Bay.
Sand mastic in Ickenham, done properly
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. If you’re dealing with draughty sash windows at the surround and patchy fillers round a sash window, we can help, on stone surrounds, sash and case windows and period & listed homes alike.
Much of London’s older housing was built with timber sash windows, some still in place and some long since replaced. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in.
Each job carries a 12-month guarantee.
- Place
- Ickenham (UB10)
- Region
- Greater London
- Cover
- One year on every job
- Quotes
- A clear price before we start
- Call
- 0345 464 0079
- Updated
- 26 October 2026
Should I try it myself first?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is matched to the joint and its conditions, and the work is guaranteed for a year.
How to look after the new joints
How long the joints last depends on use and care. Here’s what we suggest:
- Ask a joiner to look at soft timber first
- Don’t paint over the new mastic
- Check the mastic when you check the paintwork
- Find out about consent before window work on a listed home
Don’t touch or press the mastic while it hardens. It forms a skin fairly soon but needs longer to fully harden.
Small cracks are a sign the mastic is ageing. Renewing it then is simpler than waiting until it falls out.
Questions from Ickenham
I let a flat near West Ruislip station. Can you help?
Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or email us with the address and a few details, and we’ll give you a fixed price before work begins.
Is Ickenham in your area for sand mastic?
Yes, Ickenham is within the area we cover. Our work covers London and the South East. You can ring 0345 464 0079 or send us an email and tell us what needs doing.
Will the old sealant be removed?
Yes, always, and completely. New sealant won’t bond properly to old, so the joint is cleaned back first.
What do you put in the joint?
Products from Arbo and Everbuild, among others, chosen to suit the joint. We explain the product when we quote.
Where do you work from?
We’re based in Crawley, and we cover South East England, London and all of Scotland.
Can you match the sealant colour?
Yes. Sealants come in white, clear, grey and other colours for many products, and we agree the colour with you before we start.
Can old silicone round a sash window be swapped for sand mastic?
Often, yes. With the silicone removed and the joint cleaned we point it with sand mastic.
How long does sand mastic take?
Most jobs take anything from a few hours to a full day, depending on how many windows, including preparation and clearing up. We’ll confirm how long when we quote.
Signs you need sand mastic in Ickenham
Timber swells and shrinks with the weather. The movement cracks the mastic little by little.
People generally contact us when they notice one of these:
- Gaps round a timber door in stone or brick
- Draughty sash windows at the surround
- Old cement repairs round a window that have failed
- Silicone on a period window that looks wrong
Ickenham is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
What your quote should include
- Who turns up on the day
- When the joint can take water or movement
- Whether they’re fully insured
- What preparation is included
Why deal with it now?
A silicone bead can be quicker, but it can look wrong on a period surround. Sand mastic suits the building and blends with the stone or brick. In London conversions, one flat’s bathroom is often above another flat’s ceiling, and a slow leak from a failed seal can end up in the flat below. Dealing with it early is far simpler.
What it costs depends on the size of the job, how much old material has to come out and how easy the joints are to reach. You’ll have a clear quote before any work starts.
Why book with us
- 12-month guarantee on every job
- We never seal over old sealant
- Sanitary silicone with an anti-fungal additive in wet areas
- Arbo and Everbuild products
Read what affects the cost and customer reviews.
What we do, step by step
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take a few hours for a single window, longer for several. For a job in Ickenham, parking and access are the things to plan: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- 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 is not too thick.
- We mix the sand mastic and apply it by hand, shaping it to the joint.
- The finish is dressed so it sits neatly against the stone or brick.
Before we arrive
- Mention any tricky access
- Keep children and pets away from the work area
- Clear the area around the work
Ask for a quote
Need a quote? Please phone 0345 464 0079 or send us an email with a few details. We’ll explain what we’d do and send you a clear quote before we start.
Read more
Quotes for sand mastic in Ickenham
Your quote is based on your job. We take into account:
- Any mould that needs treating
- How easy the joints are to reach
- The old material and how stubborn it is
- How many rooms, windows or areas are involved
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
What we need to know
To make quoting easier, please include:
- If it’s domestic, commercial or a hotel
- How many joints, rooms or windows are involved
- Whether it has been sealed before
- Where the job is, and your postcode
There’s no standard price list, because every job is different. Instead, we send you a clear quote for your job. To get started, phone 0345 464 0079 or send us an email.
Surface by surface
Period and listed homes
A traditional finish suits a period property, and sand mastic is one of them.
Sash and case windows
Sash windows are where we do most sand mastic work. Each joint round the box is raked out and renewed.