Greater London · England
Window & door mastic in Pollards Hill, Greater London
Window mastic for Pollards Hill, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Mastic that is falling out in pieces
- Mastic that has split away from the wall
- Draughts coming in around windows and doors
Signs you need window mastic in Pollards Hill
On timber frames, paint and putty build up around the joint. Old mastic gets painted over and cracks under the paint, and timber moves with moisture as well as temperature.
Common reasons people contact us include:
- Leaking joints at the ends of sills
- Cracked or shrunken mastic around the frame
- Cold air getting in at the frame edge
- Water coming in at the bottom corners of a door
If you look after a building such as Kensington Avenue Primary School, the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- What the quote includes, VAT included or not
- How the colour is chosen
- Who turns up on the day
- How hidden problems are handled
Window mastic for homes and businesses in Pollards Hill
Behind a thin line of old mastic there’s sometimes a deep void. Filling it with sealant alone leaves a joint that cannot move properly, so deep gaps get backing rod first. The sealant then grips the two sides it should. Common call-outs are for mastic that’s falling out in pieces and draughty joints inside around the window, on composite doors, uPVC windows and window sills.
London’s Victorian and Edwardian terraces were built with timber sash windows, and many still have them or their replacements. Either way, the mastic between frame and brickwork is what stops draughts and rain getting in, in Pollards Hill as anywhere.
We stand behind the work with a one-year guarantee.
- Place
- Pollards Hill (CR7, SW16, SE19)
- Region
- Greater London
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Windows and doors in Pollards Hill
In a converted house or block, who looks after the windows depends on the lease, so check that before you book. London and the South East are among the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind.
Pollards Hill is in London, so parking needs planning: tell us about permits, visitor bays or off-street space when you book. In the older streets around St Oswald, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Pollards Hill is about 1 mile north of Thornton Heath, in Greater London. Whether you are in the middle of Pollards Hill or further out, we cover window mastic for every kind of property, from flats and houses to offices and hotels. Pollards Hill is one of 764 towns and villages in Greater London we cover. You can also see our page for London, about 6 miles away.
Jobs for window mastic in CR7, SW16 and SE19 works the same way as everywhere else we cover. If you need window mastic at a property on Green Lane, Croft Road and Downs Road or anywhere close by, our applicators can take on the job. We also cover Norbury (1 mile north), Thornton Heath (1 mile south), Streatham (2 miles north-west), Streatham Park (2 miles north-west) and Mitcham (2 miles west). Larger places within reach include London (6 miles north), City of Westminster (8 miles north), Marylebone (8 miles north), Kensington (7 miles north-west), St Pancras (8 miles north) and Shoreditch (8 miles north).
What’s near Pollards Hill
Around Pollards Hill, our work takes us to homes and buildings near Norbury Manor Business and Enterprise College for Girls, Silburn Reid and The Moon Under Water pub and the streets around them. Pollards Hill’s nearest station is Norbury station, roughly 0.6 miles west. Other landmarks nearby include Crystal Palace Museum (1.5 miles north-east) and Croydon University Hospital (1.3 miles south). The countryside around Pollards Hill includes Knight's Hill and Biggin Wood.
How to look after the new joints
After the cure time, these simple habits help:
- Walk round the house once a year and look at the joints
- Don’t use solvent cleaners on the joint
- Do not aim a pressure washer at the joints
- Do not paint over the silicone
Keep sill grooves and drainage slots clear, so rain drains out rather than building up at the sealant.
A small gap around a frame only grows. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. Resealing closes it.
What sealant work cannot fix
Sealant is not the answer to every problem, and we’ll tell you before work begins. Sealant won’t put right:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- A door that needs adjusting, rehanging or new seals
- Damp coming through the wall itself rather than the frame joint
Not sure which it is? You can call 0345 464 0079 or email us and we will tell you honestly.
Where we work in Pollards Hill
- Window sills
- Timber windows & doors
- Aluminium frames
- uPVC windows
- Patio & French doors
- Composite doors
Also near Pollards Hill
More services for Pollards Hill
For landlords and businesses
Landlords and agents in Pollards Hill can book us as well as homeowners. Resealing between tenancies is a simple way to keep a property in good order before the next move-in.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can be quoted together.
What affects the quote in Pollards Hill
Your quote is based on your job. We look at:
- Mould in or behind the old joints
- Working hours on commercial sites
- How much there is to do
- The type of sealant required
There are no prices on our website, because each job is priced on what it involves. Call for a quick quote and we will talk you through it.
Helping us quote
Photos by email are helpful but not essential. Please mention:
- Where the job is, and your postcode
- The type of property
- Roughly how big the job is
- Pictures of the joints, sent by email
It all starts with a short chat. Describe the problem, the location and the size of the job, and we will talk you through what we’d do. Whenever you’re ready, call 0345 464 0079 or email us.
What the job involves on each surface
Window sills
Sills catch the water running down the glass, so the sill ends and the joint under the frame are vital. They’re cut out and resealed with exterior sealant.
Aluminium frames
Coated aluminium needs a compatible sealant. Neutral-cure sealant is the safe choice.
Common questions in Pollards Hill
Do you cover Pollards Hill for window mastic?
Yes. We work across London and the South East, and Pollards Hill is part of that. Just call 0345 464 0079 or drop us an email with a few details of the job, and we’ll send you a clear quote.
Do you work for landlords with property near Norbury station?
Yes. We work for landlords and agents as well as householders, and several properties can be quoted together. Just ring 0345 464 0079 or email us with the address and what needs doing, and we will give you a clear price.
Should I try DIY first?
For a simple, easy-to-reach joint, a careful DIYer can do a reasonable job. The usual mistakes are sealing over old sealant, sealing a damp joint and using too much.
What does window mastic cost?
We don’t publish prices, because the cost depends on the job: its size, the old material, access and the product needed. We agree the price before any work begins.
Can you do upstairs windows?
Yes, where they can be reached safely. Tell us about access when you get in touch and we’ll plan for it.
Can you match the sealant to my frames?
Yes. Anthracite grey, black, brown and white cover most frames, with clear as an option.
Where is Mr Mastic based?
We are a Crawley-based firm. We work across South East England, London and Scotland.
Which products do you use?
We choose the sealant for the joint, not the other way round. Where it moves, gets wet or faces the weather makes a difference, and we’ll tell you what we’re using.
How it works
Every visit runs the same way: we check the joints, protect the area around them, do the work and tidy away. It usually takes a morning for a couple of windows and a door. In Pollards Hill, flats, stairs and shared entrances are part of the routine. If the building has a concierge, managing agent or access rules, tell us when you book.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- 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.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Move anything stored near the joints
- Tell us about any water getting in
- Keep children and pets away from the work area
How to get a quote
If you’re in Pollards Hill and need window mastic, phone 0345 464 0079 or send us an email. Tell us what the problem is and where, and you’ll get a clear quote before work begins.