Greater London · England
Window & door mastic in Maze Hill, Greater London
Window mastic across Maze Hill and nearby, with every bit of old sealant taken out first and a one-year guarantee.
- Mastic that is falling out in pieces
- Leaking joints at the ends of sills
- Rain getting in at the frame or under the sill
About our window mastic in Maze Hill
Mr Mastic’s applicators have more than 20 years’ experience with window and door sealants. We’re fully insured ARBOMaster approved applicators, and every job is covered by a 12-month guarantee. Common call-outs are for draughts coming in around windows and doors and a bead that doesn’t match the frame, on uPVC windows, window sills and timber windows & doors.
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, letting in draughts and water.
You’re covered for a year from the day we finish. If anything isn’t right with it, call 0345 464 0079 or send us an email.
- Where
- Maze Hill (SE10, SE3, E14)
- Region
- Greater London
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026
Different surfaces, different methods
Patio & French doors
Door frames take knocks and movement every time the doors are used. The sealant must cope with it.
Composite doors
Draughts round the door leaf generally come from worn seals or adjustment, not the mastic. We seal the frame and let you know about anything else.
For landlords and businesses
Hotels need rooms back in use, so the work can be planned room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Should I try it myself first?
Not every job suits DIY: high-level joints, fire-rated gaps, external movement joints and big jobs need the right product, the right access and the right method.
If you’ve already had a go yourself, that is fine. We cut it out and start again, so tell us about it when you ask for a quote.
What happens if it’s left?
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 older London homes, water behind a failed joint soaks into brick and timber without much sign, and by the time it shows on a wall or ceiling in Maze Hill, the repair is bigger than the sealant job would have been.
Leaving a failed joint generally makes the job bigger, not smaller, as water and mould keep getting in. If you are not sure whether it needs doing, ring 0345 464 0079 or send us an email for an honest opinion and a quote.
Why book with us
- A 12-month guarantee on all work
- An ARBOMaster approved applicator
- We leave the area clean and tidy
- Arbo and Everbuild products
Read our cost guide and what customers say.
Common questions in Maze Hill
Is parking an issue for window mastic in Maze 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.
Do you work for landlords with property near Maze Hill station?
Yes, rental work is part of what we do. 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 work begins.
Do you remove the old sealant?
Yes. All of the old material is cut out and the joint cleaned.
Do I have to be there?
It depends on the job. Inside work needs someone to give us access.
Can you seal the gap between the frame and the plaster indoors?
Yes. Indoors, we seal between the frame and the plaster or reveal.
Is the new sealant paintable?
Silicone generally will not take paint. Let us know beforehand, and we will use a paintable product where it suits.
What do you put in the joint?
The product depends on the job: anti-fungal sanitary silicone in wet areas, and other sealants where joints move or face the weather. Brands we use include Arbo and Everbuild.
Do you have sealant for grey or black windows?
Yes, in most cases. Tell us the frame colour when you get in touch and we’ll use the nearest match.
What we’re called out for in Maze Hill
A lot of older mastic was never designed to stay flexible. Once it’s rigid, every bit of frame movement pulls at it, and a gap opens along one edge.
Signs it’s time to call us include:
- Water coming in at the bottom corners of a door
- Gaps left after new windows were fitted
- Cracked internal joints between frame and plaster
- A bead that doesn’t match the frame
For landlords with property near Maze Hill station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
What your quote should include
- What guarantee comes with the work
- Whether the sealant suits the joint
- Whether they seal over old material or remove it
- What happens if they find a problem under the old sealant
What window mastic looks like in Maze Hill
In London conversions and blocks, the lease decides who is responsible for the frames, so check that before booking. Historic houses like Queen's House (about 0.3 miles west) are a reminder that the area around Maze Hill has older buildings as well as new. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
If you look after a building such as John Roan School, the mastic around its windows and doors needs looking after like any other building’s. In the older streets around Christ Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Maze Hill is about 1 mile north-east of Greenwich, in Greater London. Homes, rented property, offices and hotels in Maze Hill can book us for window mastic. The work is guaranteed for a year. 764 places in Greater London are on our list, large and small.
Here we cover the SE10, SE3 and E14 postcode area for window mastic. You will find streets such as Webb Road, The Avenue and Hardy Road. We also cover Greenwich (1 mile south-west), Vanbrugh Park Estate (1 mile south-east), Westcombe Park (1 mile east), Blackheath (1 mile south) and Isle of Dogs (1 mile north-west). Larger places within reach include London (4 miles west), City of Westminster (7 miles west), Marylebone (7 miles west), Kensington (9 miles west), St Pancras (6 miles north-west) and Shoreditch (5 miles north-west).
Landmarks near Maze Hill
We work in homes and buildings around Wildwood Montessori School, East Greenwich Pleasaunce and Meridian Primary School, among other places. There’s a railway station in Maze Hill itself: Maze Hill station. Other landmarks nearby include Lewisham Shopping Centre (1.5 miles south-west) and Greenwich District Hospital (within half a mile north-east). Not far away are Tower Hill and Creekside Discovery Centre.
Places near Maze Hill
More services for Maze Hill
How it works
When we get to you, we check the joints match what you told us. If anything is different, we explain it before carrying on. Most jobs then take most of a day for a typical house, less for a few frames. For a job in Maze Hill, parking and access are the things to plan: let us know about parking, the floor we will be working on and any lift or shared entrance.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- Every joint is checked before we leave.
How to prepare
- Tell us about any water getting in
- Keep pets and children clear of the area while we work
- Let us know about earlier repairs to the joints
Get a quote
There’s no standard price list, because every job is different. Instead, your job gets its own clear quote. To get started, call 0345 464 0079 or send us an email.
Advice
How to look after the new joints
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Keep timber frames painted
- Make sure the drainage slots are not blocked
- Air rooms to keep condensation down around windows
- Do not aim a pressure washer at the joints
Keep the new mastic undisturbed while it cures, for as long as we advise. Keep jet washers away from the frames.
On timber windows, water behind the joint can lead to rot. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.