Greater London · England
Window & door mastic in Little Venice, Greater London
Problem with your window and door frames in Little Venice? We remove the old material, prepare the joints and seal them properly.
- Whistling draughts around closed windows
- Cracked or shrunken mastic around the frame
- Mastic that is falling out in pieces
Window mastic for homes and businesses in Little Venice
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. Our applicators cut it out and replace it with a flexible, weatherproof sealant. We are often asked to deal with gaps where the sill meets the wall and old mastic that has gone black or come away, on timber windows & doors, composite doors and aluminium frames.
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.
We guarantee the work for a year. If there’s a problem with our work within the year, let us know and we’ll sort it.
- Place
- Little Venice (W2, W9, NW8)
- Region
- Greater London
- Cover
- One year on every job
- Quotes
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
How to look after the new joints
Good habits help new joints last longer. A few tips:
- Clean frames with a soft cloth and soapy water
- Look round the frames every year or so
- Make sure the drainage slots aren’t blocked
- Wipe condensation off the frames
On timber frames, keep the paintwork in good order, because bare, wet timber moves more and pulls at the joint. Keep paint off the silicone itself.
Leaks generally show up in wet, windy weather, but resealing works best in dry conditions. Dealing with it when you first notice a crack avoids chasing leaks through the wet months.
Landlord and commercial work in Little Venice
If you manage several properties in or around Little Venice, several properties can go on one quote. Just tell us the addresses and what each one needs.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
How the visit works
We work through the job in order: protect, prepare, seal, tidy. For most jobs that takes most of a day for a typical house, less for a few frames. In Little Venice, 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 confirm safe access to each frame.
- Old, cracked mastic is removed completely, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Deep voids are backed, then the sealant is gunned in.
- The joint is shaped to shed water and the area tidied.
Getting ready for the visit
- On commercial sites, let us know about site rules
- Clear the area around the work
- Keep children and pets away from the work area
Getting a quote
If you’re in Little Venice and need window mastic, call 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before we start.
Advice
Questions from Little Venice
Can you help a landlord with a rental near London Paddington station?
Yes. We work for letting agents and landlords as well as homeowners. You can call 0345 464 0079 or send us an email with the details for a clear quote.
Do you cover Little Venice for window mastic?
Yes. Our work covers London and the South East, and Little Venice is part of that. You can phone 0345 464 0079 or drop us an email and tell us what needs doing.
Do I have to be there?
For indoor joints, yes, someone needs to let us in. After that, you can carry on with your day.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit.
How long does it take to reseal the windows on a house?
A few frames take a few hours. We confirm the timing with your quote.
Can resealing stop a draught around my window?
It will if the frame joint is the problem. We check where the draught is before work begins.
When is the sealant fully cured?
Most sealants are touch-dry well before they’re fully cured. We’ll tell you how long to leave the joint.
Can new window sealant be painted?
That depends on the product. Some hybrid sealants can be painted; silicone can’t. Mention any painting plans before any work starts.
Common problems we fix in Little Venice
Plenty of failed mastic was poorly applied in the first place. Mastic laid onto dusty, damp or crumbling surfaces didn’t grip properly, and it lets go sooner than it should.
Keep an eye out for any of the following:
- Gaps left after new windows were fitted
- Hard, cracked sealant around windows
- Old mastic that has gone black or come away
- Draughty joints inside around the window
Letting a property close to London Paddington station? Then sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
What to look for in a quote
- How much experience the applicator has
- Whether they’re fully insured
- What the cure time is
- What happens if the job turns out different
Why deal with it now?
Draughts and leaks don’t always mean new windows. Where the frames are sound, new mastic usually deals with draughts and leaks at the edges. Problems with the glass or gaskets are for a window company, and we’ll say so. In a flat in Little Venice, failed sealant seldom stays inside your own four walls: water from a shower or window joint can reach the flat below, and gaps in fire-stopping matter to everyone in the building.
Leaving a failed joint normally makes the job bigger, not smaller, as water and mould keep getting in. If you are unsure, call 0345 464 0079 or email us and we will give you an honest view and a quote.
What you get with us
- We’re fully insured
- 180+ five-star Google reviews
- White, clear, grey or another colour, product permitting
- An ARBOMaster approved applicator
How we quote for window mastic
Call for a quick quote. The main things that affect it are:
- Any mould that needs treating
- The product the joint needs
- The number and length of the joints
- Working hours on commercial sites
We don’t show prices on the website, because each job is priced on what it involves. For a quick quote, please call 0345 464 0079 or drop us an email.
Helping us quote
When you call or email, it’s useful to know:
- Pictures of the joints, sent by email
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
- The rough size of the job
Every job is quoted individually. Simply ring 0345 464 0079 or email us and describe the job and send photos if you have them.
Also near Little Venice
Other services in Little Venice
What window mastic looks like in Little Venice
In London conversions and blocks, the lease decides who is responsible for the frames, so check that before you book. Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
As a London address, Little Venice can be tricky for parking: tell us about permits, visitor bays or off-street space when you book. Schools such as Ark Paddington Green Primary Academy are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Little Venice is about 1 mile west of City of Westminster, in Greater London. Homes, rented property, offices and hotels in Little Venice is covered for window mastic. The work is guaranteed for a year. Little Venice is one of 764 places in Greater London we cover for window mastic.
Here we cover the W2, W9 and NW8 postcode area for window mastic. That includes homes and businesses on Harrow Road, Alfred Road and Newton Road and the roads around them. Little Venice is on the A5 and A40, so it’s easy for us to get to with everything needed for window mastic. Nearby, we also carry out window mastic in Westbourne Green (1 mile west), Paddington Green (1 mile east), Paddington (1 mile south-east), Maida Vale (1 mile north-west) and Lisson Grove (1 mile north-east). Further out, we also cover London (4 miles east), St Pancras (3 miles east), Shoreditch (5 miles east), Walthamstow (8 miles north-east), Hoxton (4 miles east) and Whitechapel (5 miles east).
Local landmarks in Little Venice
Around Little Venice, our work takes us to homes and buildings near International Community School, The Bridge House and Westminster Academy, among other places. Nearby too are Kensington Gardens (1 mile south) and Royal Society of Medicine Library (1.6 miles east). Little Venice has its own railway station: London Paddington station. Well-known places in the area include Maida Vale Hospital for Nervous Diseases (under half a mile north) and Kensington Arcade (1.5 miles south). For a walk, there’s Greville Place nature reserve and Campden Hill.
Should I try it myself first?
The biggest DIY mistake is sealing over old sealant. New silicone will not bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Some jobs are best left to a professional: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.