Greater London · England
Window Mastic in Fairlop
Problem with your window and door frames in Fairlop? We remove the old material, prepare the joints and seal them properly.
- Water coming in at the bottom corners of a door
- Mastic that has split away from the wall
- Leaking joints at the ends of sills
The process
Good joint work is mostly preparation, so that’s where we spend the time. Joints are cleaned back and dried before anything new goes in. All told, the work takes most of a day for a typical house, less for a few frames. Parking in much of London is by permit or pay-and-display, so it helps to know what’s near you in Fairlop. A visitor permit or a nearby bay makes the visit run more smoothly.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- Every joint is tooled smooth and checked before we leave.
Before we arrive
- Let us know about stairs, lifts or work at height
- Mention if the joints have been sealed before
- Mention any sign-in or site rules at work premises
Get a quote
We don’t publish a price list, as no two jobs are quite the same. Instead, your job gets its own clear quote. To arrange one, phone 07833 053749 or drop us an email.
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Window mastic for homes and businesses in Fairlop
Some gaps around frames are far deeper than they look. Filling it with sealant alone leaves a joint that can’t move properly, so we fit backing rod to set the right depth. The sealant then grips the two sides it should. We work on window sills, timber windows & doors and composite doors, and the jobs we see most are untidy mastic left by window fitters and mastic that’s falling out in pieces. Need a sealant company near Fairlop? That’s us, with 20+ years’ experience.
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, large or small.

- Place
- Fairlop (IG6, IG7, IG5)
- Region
- Greater London
- Guarantee
- A year, on every job
- Price
- A clear price before work begins
- Phone
- 07833 053749
- Updated
- 26 October 2026
Fairlop homes and the weather
In a converted house or block, who looks after the windows depends on the lease, so it’s worth checking before booking. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In the older streets around St Francis of Assisi, frames set in older brick or stone need a sealant that suits the wall as well as the frame. Schools such as Fairlop Primary School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s. Fairlop is in London, so parking needs planning: let us know about parking bays, permits or a driveway.
Fairlop is about 2 miles east of Woodford, in Greater London. Every kind of property in Fairlop can book us for window mastic. Every job comes with our 12-month guarantee. Fairlop is one of 786 towns and villages in Greater London where we work.
Our applicators cover all of IG6, IG7 and IG5 for window mastic and the streets around it. Whether your property is on Hazel Lane, Hobart Road and Hughes Road or a nearby road, our applicators can take on the job. Nearby, we also carry out window mastic in Fullwell Cross (1 mile south), Barkingside (1 mile south), Newbury Park (2 miles south), Gants Hill (2 miles south) and Redbridge (2 miles south-west). Larger places within reach include London (10 miles south-west), City of Westminster (12 miles south-west), Marylebone (11 miles south-west), Kensington (14 miles south-west), St Pancras (10 miles south-west) and Shoreditch (9 miles south-west).
Landmarks near Fairlop
Around Fairlop, our work takes us to homes and buildings near Kantor King Solomon High School, Fairlop Waters and The New Fairlop Oak pub, among other places. For rail, the closest station is Seven Kings station, about 2.5 miles south of the centre. Nearby you’ll also find Claybury Hospital (0.7 miles west) and Redbridge Museum (2.9 miles south). Open spaces near Fairlop include Pole Hill and Highams Park Lake.
Honest limits
It helps to know what we cannot do:
- Damp coming through the wall itself rather than the frame joint
- A failed sealed unit that has misted up
- Draughts through the window seals rather than the frame
Not sure which it is? You can phone 07833 053749 or email us and we’ll tell you honestly before booking.
What we seal
- Composite doors
- Window sills
- Aluminium frames
- Timber windows & doors
- Patio & French doors
- uPVC windows
Surface by surface
uPVC windows
Some uPVC windows were sealed at fitting with a quick bead that never bonded. We cut it out, back any deep gaps and reseal properly.
Patio & French doors
Heavy door frames can move more than windows. The sealant must cope with it, where a rigid one would crack.
FAQs for Fairlop
Do you work for landlords with property near Seven Kings station?
Yes, landlords and agents are among the people we work for. Just call 07833 053749 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Is parking a problem for a job in Fairlop?
In much of London, parking needs planning: a visitor permit or a nearby bay makes the day run more smoothly.
Can you do several jobs on one visit?
Yes. More than one area can go on one quote.
Do you work on first-floor windows?
Usually, yes. We plan safe access before the job, so mention the height and anything in the way.
Can I paint over the new sealant?
Silicone generally will not take paint. If you plan to paint, tell us first and we can use a paintable sealant where it suits the joint.
Do you work in Fairlop?
We do. Fairlop is part of the area we cover, and the service is the same as everywhere else.
Can I do it myself?
You can, for simple jobs. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
Does someone need to be in?
Access is agreed with you when the job is booked. For inside work, that normally means someone being in.
Towns and villages near Fairlop
Other services in Fairlop
Why it’s worth doing now in Fairlop
Once mastic fails, rain can get between the frame and the wall. Over time that can mean damp patches, damaged plaster and rotting timber. Resealing now is a small job by comparison. In a London flat, a failed joint rarely stays your problem alone: water can reach the neighbours below, and gaps in fire-rated joints affect the whole building.
Every job is a little different, so each one gets its own quote. The number of joints, how easy they are to reach and the sealant needed all make a difference.
Why book with us
- 180+ five-star Google reviews
- White, clear, grey or another colour, product permitting
- 12-month guarantee on every job
- Homes, businesses and hotels
Should I try it myself first?
If you do try it yourself, take your time over the preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it fails, we can still redo it.
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs call for the right materials, safe access and experience.
What affects the cost of window mastic
We quote each job individually. These are the things that affect it:
- How many rooms, windows or areas are involved
- The product the joint needs
- When we can work, for business premises
- Any mould that needs treating
A few things move the cost up or down: the old material and how easily it comes out, any mould to treat, and whether we need extra access for height. Your quote takes all of that into account.
Asking for a quote
What to tell us when you ask for a quote:
- A few photos by email, if you can
- What’s wrong with the joints now
- The rough size of the job
- The type of property
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, and we will come back to you with a quote.
How to look after the new joints
No joint lasts for ever, but care makes a real difference. A few tips:
- Do not use solvent cleaners on the joint
- Keep timber frames painted
- Look round the frames every year or so
- Keep paint off silicone joints
Wipe the frames with soapy water when you clean the windows, and keep solvents and harsh chemicals off the joint.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and a cold room gets colder. A new joint closes it up.
