Greater London · England
Notting Hill Window Mastic
Professional window mastic in and around Notting Hill, with every bit of old sealant taken out first and a one-year guarantee.
- Sealant in the wrong colour for the frame
- Damp patches on the reveal after heavy rain
- Hard, cracked sealant around windows
Your questions about window mastic in Notting Hill
Can you help a landlord with a rental near Shepherds Bush station?
Yes, we work for letting agents and landlords. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before we start.
Is parking an issue for window mastic in Notting Hill?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly, so mention what’s available when you book.
When is the sealant fully cured?
Different products cure at different speeds, so follow the cure time we give you.
How many windows can you do in a day?
A few frames take a few hours. We confirm the timing with your quote.
Do you cover Notting Hill?
Yes. We’re based in Crawley and work across South East England, London and Scotland.
Can I do it myself?
Some simple jobs can be done by a careful DIYer. Most DIY failures come from sealing over old material, wet joints or too much sealant.
Can you do several jobs on one visit?
Yes, and it often makes sense. Doing several areas at once is normally more efficient.
Can you match the sealant to my frames?
Yes, we choose a colour to suit the frame. Grey and black frames get grey or black sealant, and wood-effect frames generally suit brown.
How we handle window mastic in Notting Hill
Most frames have an outside joint and an inside one. The external joint is the weather seal; the internal joint closes the gap to the plaster and stops draughts. We seal one or both, depending on what’s needed. We work on uPVC windows, patio & French doors and aluminium frames, and people most often call us about cracked or shrunken mastic around the frame and damp patches on the reveal after heavy rain.
From mansion-block windows to modern glazing in new flats, London has every kind of frame. Over the years, the sealant around them shrinks, cracks and pulls away, which is when draughts and damp patches appear in homes in Notting Hill.
You get a one-year guarantee, the same in Notting Hill as everywhere else we work.
- Place
- Notting Hill (W11, W8, W2)
- Wider area
- Greater London
- Cover
- A year, on every job
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
Towns and villages near Notting Hill
More services for Notting Hill
Landlords, agents and businesses in Notting Hill
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. We can quote for more than one property at once.
Frames and glazing around Notting Hill
Historic houses like Sambourne House (about 0.7 miles south-east) are a reminder that the area around Notting Hill has older buildings as well as new. Where a home is older, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as St John's Notting Hill, the joint between an old wall and a newer frame is usually the first place rain gets in. For landlords with property near Shepherds Bush station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Notting Hill is about 1 mile north of Kensington, in Greater London. From the centre of Notting Hill to the outskirts, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. Across Greater London, we cover 764 places, Notting Hill among them.
Jobs for window mastic in W11, W8 and W2 is quoted and booked the same way as anywhere else. If you need window mastic at a property on Walmer Road, Aubrey Road and Sirdar Road or anywhere close by, we can help. With the A402 and A4204 close by, Notting Hill is simple for us to get to for window mastic. If you’re just outside Notting Hill, we cover Holland Park (1 mile south), Notting Dale (1 mile north-west), Kensington (1 mile south), Shepherd's Bush (1 mile south-west) and White City (1 mile west). Within a short drive, we also cover London (5 miles east), Marylebone (3 miles east), St Pancras (4 miles east), Shoreditch (6 miles east), Walthamstow (9 miles north-east) and Hoxton (5 miles east).
Near you in Notting Hill
In Notting Hill, that means homes and buildings near The Sun In Splendour pub, Kensington School and Abdus Salam Library and the streets around them. Also close by are Holland Park (less than half a mile south) and Holland Park School (within half a mile south). For rail, the closest station is Shepherds Bush station, about 0.6 miles south-west. Other landmarks nearby include Montfichet's Tower (4.4 miles east) and Westfield London (0.7 miles west). Open spaces near Notting Hill include Campden Hill and The Long Water.
How the visit works
The work is kept neat and contained to the area we are working on. The job usually takes most of a day for a typical house, less for a few frames. In a London area like Notting Hill, the main things to plan are parking and access: let us know about parking, the floor we’ll be working on and any lift or shared entrance.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- Mention any tricky access
- Clear the area around the work
- Tell us if parking is tricky
Get a quote
Asking for a quote is easy: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand.
Advice
Should I try it myself first?
Overfilling a joint is a classic DIY mistake. A heavy bead looks messy and copes badly with movement, and the joint depth matters as much as the finish.
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
When to call us in Notting Hill
Joints that are too thin or too deep fail early. A thin smear across a wide gap has nothing to it, and a gap filled solid can’t flex. That is what backing rod is for.
Signs it’s time to call us include:
- Cracked sealant at the sill ends
- Cracked internal joints between frame and plaster
- Cold air getting in at the frame edge
- White mastic on grey or black frames
Managing a site like St Clement and St James CofE Primary School? Then its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- Is VAT in the price?
- How hidden problems are handled
- What preparation is included
- Is the old sealant removed completely?
Quotes for window mastic in Notting Hill
You will get a clear quote before work begins. It takes into account:
- How many rooms, windows or areas are involved
- The size of the job
- How easy the joints are to reach
- Working hours on commercial sites
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part, and we will explain the quote if you ask.
What to tell us for a quote
Photos by email are helpful but not essential. Try to tell us:
- The rough size of the job
- Where the job is, and your postcode
- What’s wrong with the joints now
- A few pictures by email, if you can
For a quote, call 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We’ll give you a clear quote before any work starts.
What the job involves on each surface
Patio & French doors
Heavy door frames can move more than windows. The sealant must cope with it, where a rigid one would crack.
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the threshold joint takes a lot of water. We prepare and reseal every joint, backing the deep ones.
When it isn’t the sealant
A few problems are outside what sealant work can do:
- A door that needs adjusting, rehanging or new seals
- Soft or decayed wood in the frame
- Faulty window hardware
Not sure which it is? You can ring 0345 464 0079 or email us and we will tell you honestly before booking.
Surfaces we seal
- Timber windows & doors
- uPVC windows
- Aluminium frames
- Window sills
- Patio & French doors
- Composite doors