Greater London · England
North Hyde Window Mastic
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in North Hyde. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- Cold air getting in at the frame edge
- Rushed sealant from a window installation
- Draughty joints inside around the window
North Hyde homes and the weather
Rainfall in the South East is lower than in much of the UK, 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 it’s worth checking before booking.
Schools such as Norwood Green Infant and Nursery School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s. For an older house near a landmark such as St Leonard's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
North Hyde is about 1 mile south of Southall, in Greater London. Jobs in North Hyde get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. Our Greater London coverage runs to 764 places, and North Hyde is one of them. You can also see our page for London, about 12 miles away.
Every address in UB2 and TW5 is covered for window mastic, from the main roads to the quietest streets. You will find streets such as Lea Road, Fern Lane and Court Road. With the A3005 close by, North Hyde is easy for our applicators to reach. Close by, we work in Heston (1 mile south), Norwood Green (1 mile east), Osterley (1 mile east), Lampton (1 mile south-east) and Hounslow West (2 miles south). Further out, we also cover London (12 miles east), City of Westminster (10 miles east), Marylebone (10 miles east), Kensington (8 miles east), St Pancras (12 miles east) and Shoreditch (13 miles east).
Landmarks near North Hyde
We work in homes and buildings around Minet Country Park, The Plough Public House and Featherstone High School and the streets around them. The nearest railway station is Southall station, about 1 mile north. Other landmarks nearby include Museum of Army Music (2.9 miles south-east) and St Bernard's Hospital (1.6 miles north-east). Open spaces near North Hyde include Long Wood and Garden Lake.
How we handle window mastic in North Hyde
If you can feel air around a shut window, the gap is often at the frame. Resealing that joint can make a room feel noticeably less draughty and quietens the whistle on windy days. If the draught is through the window seals instead, we will tell you. We work on aluminium frames, patio & French doors and composite doors, and common reasons people get in touch are draughts coming in around windows and doors and cracked internal joints between frame and plaster.
From mansion-block windows to modern glazing in new flats, London has every kind of frame. The mastic around them dries out and cracks with age, which is when draughts and damp patches appear in homes in North Hyde.
Whatever the size of the job, you get the same 12-month guarantee.
- Place
- North Hyde (UB2, TW5)
- Wider area
- Greater London
- Guarantee
- 12 months on all our work
- Quotes
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Do you need window mastic in North Hyde?
Mastic ages in the weather. Sunlight dries the surface out, until it loses its stretch and starts to crack.
Signs it’s time to call us include:
- Draughty joints inside around the window
- Water coming in at the bottom corners of a door
- Mastic that is falling out in pieces
- Cracked sealant at the sill ends
North Hyde is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book.
Questions to ask before booking
- What preparation is included
- How long the guarantee is
- Which sealant they’ll use, and why
- What happens if the job turns out different
North Hyde: your questions answered
I let a flat near Southall station. Can you help?
Yes, rental work is part of what we do. Just ring 0345 464 0079 or email us and tell us about the property, and we’ll give you a clear quote.
Can you do window mastic in North Hyde?
Yes. Our work covers London and the South East, and North Hyde is part of that. Just ring 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
Is it worth trying it myself?
Some simple jobs can be done by a careful DIYer. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
How much does window mastic cost in North Hyde?
It depends on the job, so we quote each one individually. To get one, ring 0345 464 0079 or drop us an email with a short description of the job.
Do you work for hotels and businesses?
Yes. Hotels, offices and other businesses use us and we’re fully insured.
When is the sealant fully cured?
It depends on the product. We tell you how long to leave it before we go.
Where do you work from?
We’re a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Are you insured?
Yes. Full insurance covers our work.
How the visit works
When we arrive, we look over the joints with you first. Surfaces next to the work are protected before we start. Most jobs take a few hours for a few frames, or a day or more for a whole house. In North Hyde, flats, stairs and shared entrances are part of the routine. Mention any building rules, key holders or managing agents when you book.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Finally we tidy up and check each joint.
Preparing for the visit
- For business premises, tell us about site rules or sign-in
- Tell us about access, such as stairs, a lift or high-level joints
- Keep children and pets away from the work area
Ask for a quote
Need a quote? Please phone 0345 464 0079 or send us an email and tell us about the job. You’ll know what we plan to do, and what it will cost, before any work begins.
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How the job changes by surface
Aluminium frames
Aluminium moves with heat, and the frames are often slimmer than uPVC. A tidy bead in anthracite grey, black or a matching colour keeps the clean look.
uPVC windows
Fitters’ mastic on plastic frames is sometimes thin and rushed. It comes out, deep gaps get backing rod and the joint is resealed.
What affects the quote in North Hyde
The price is agreed before any work begins. It takes into account:
- Any working-time requirements on site
- The type of sealant required
- Whether there’s mould to deal with
- Whether the work is at height
We do not show prices on the website, because each job is priced on what it involves. For a quick quote, please phone 0345 464 0079 or drop us an email.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- Roughly how big the job is
- What the problem is, such as mould, gaps, leaks or cracking
- Where the job is, and your postcode
- Pictures of the joints, sent by email
For a quote, call 0345 464 0079 or drop us an email with the location and a short description of the problem. We will give you a clear price before any work starts.
Honest limits
We’d rather tell you now than do work that will not last, so here’s what sealant can’t put right:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Broken hinges, locks or handles
- Soft or decayed wood in the frame
If in doubt, phone 0345 464 0079 or drop us an email and we’ll say what we think.
Where we work in North Hyde
- Composite doors
- Aluminium frames
- Patio & French doors
- uPVC windows
- Timber windows & doors
- Window sills
Towns and villages near North Hyde
What else we do in North Hyde
Leave it or put it right?
Getting a straight, even bead on an outside frame takes practice, especially upstairs. We cut out properly, back deep gaps and tool every joint neatly, using a product chosen for the frame and wall. Damp from a failed joint spreads quietly in older London brickwork and timber, and once it shows in North Hyde, the repair is bigger than a sealant job.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all make a difference, and we will explain the quote if you ask.
Why book with us
- Old sealant always removed completely
- A choice of colours where the product allows
- Sealant colour chosen to suit
- Colour agreed with you before we start
Take a look at our cost guide or our reviews.
Can I do it myself?
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is.
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so just mention it when you contact us.