Surrey · England
Window Mastic in The Chart
Mastic around window and door frames, sills and patio doors for The Chart, backed by a one-year guarantee. Call for a quick quote.
- Water coming in at the bottom corners of a door
- Cold air getting in at the frame edge
- Gaps between the frame and the inside reveal
Looking after it afterwards
Once the sealant has cured, a few habits help it last:
- Keep paint and stain on wooden frames in good order
- Ventilate rooms so frames do not stay wet inside
- Keep solvents and bleach off the sealant
- Wash the frames with mild soapy water
Most silicone sealants won’t take paint, so mention any painting plans before any work starts. There are paintable sealants for joints that need it.
Leaks generally show up in wet, windy weather, but sealant goes on best when frames and walls are dry. Sorting cracked mastic early means the joint is sound before the bad weather.
How we handle window mastic in The Chart
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. That way the new bead bonds to the frame and the wall only. We work on timber windows & doors, window sills and aluminium frames, and the jobs we see most are untidy mastic left by window fitters and cracked or shrunken mastic around the frame.
Homes in small places like The Chart often stand in the open, with little to shelter their windows from wind and rain. That exposure dries out and cracks the mastic around frames and sills faster.
The work is guaranteed for twelve months. If something is not right with it in that time, tell us and we will put it right.
- Place
- The Chart (RH8)
- Wider area
- Surrey
- Guarantee
- 12 months on all our work
- Quotes
- Quoted before any work starts
- Call
- 0345 464 0079
- Updated
- 26 October 2026
When to call us in The Chart
Sills take more water than any other part of a window, and the ends of the sill, where it meets the wall, are where it gets in. When that sealant fails, water gets into the wall or under the frame.
The problems people normally mention when they call include:
- White mastic on grey or black frames
- Cold air getting in at the frame edge
- Mastic that has split away from the wall
- Damp patches on the reveal after heavy rain
Schools such as Limpsfield CofE Infant School are buildings too, and its window and door frames need their mastic kept sound, just like a home’s.
What to look for in a quote
- What the quote includes, VAT included or not
- How much experience the applicator has
- When the joint can take water or movement
- What guarantee comes with the work
How the visit works
On the day, there’s very little for you to do. Show us the job and we will take it from there. The job generally takes a morning for a couple of windows and a door from start to finish. Somewhere like The Chart needs a little journey planning: tell us about narrow lanes, gates, long drives and where we can park. We bring what the job needs, so it can be finished in one trip where possible.
- We start by checking each window and door with you.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
How to prepare
- Let us know if you’ve seen damp or leaks
- Clear the area around the work
- Keep children and pets away from the work area
How to get a quote
If you’re in The Chart and need window mastic, phone 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
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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 suits the frame.
Patio & French doors
Heavy door frames can move more than windows. A flexible sealant copes with that.
Why act early in The Chart
A quick bead over the top of old mastic looks like an easy fix, but it won’t grip old, dirty sealant. It peels before long, and water still gets in behind. Proper resealing starts with removing the old joint. Around The Chart, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Doing several joints on one visit generally makes better use of the time than several visits. You will get one clear quote for the whole job.
What you get with us
- Tidy, careful work
- Full insurance on every job
- More than 20 years in sealant work
- We agree the colour with you first
See what affects the cost or our reviews.
Frames and glazing around The Chart
With historic houses such as Chartwell (about 1.9 miles east) nearby, there’s older building stock in the area around The Chart as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic. 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.
For landlords with property near Hurst Green station, renewing tired window mastic between tenants heads off draught and damp complaints. In the older streets around St Andrew's, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
The Chart is about 6 miles south-east of Caterham, in Surrey. Every kind of property in The Chart can book us for window mastic, old or new, large or small. The work is guaranteed for a year. Our area takes in 395 places across Surrey. Our Crawley page covers work nearby (14 miles or so).
All of RH8 is within our area for window mastic, from the main roads to the quietest streets. Whether your property is on Stoneleigh Road, St Andrews Way and Ridlands Lane or anywhere close by, we can help. We also cover the places around The Chart: Pains-Hill (1 mile west), Moorhouse Bank (1 mile north-east), Goodley Stock (1 mile east), Limpsfield (1 mile north-west) and Crockham Hill (1 mile south-east). Larger places within reach include Epsom (15 miles north-west), Horley (10 miles south-west), Redhill (9 miles west), Ewell (15 miles north-west), Reigate (10 miles west) and Caterham (6 miles north-west).
Local landmarks in The Chart
We work in homes and buildings around Carpenters Arms, Oxted School and Hazelwood School and the streets around them. The Chart’s nearest station is Hurst Green station, about 1.6 miles west of the centre. A little further out are Tandridge Priory (0.6 miles north-west). Open spaces near The Chart include Botley Hill and Bay Pond.
Your questions about window mastic in The Chart
Can you help a landlord with a rental near Hurst Green station?
Yes. We work for landlords and agents as well as householders. You can ring 0345 464 0079 or drop us an email with the details for a clear quote.
Do you cover smaller places like The Chart?
Yes, The Chart is covered. Our work covers London and the South East, from towns to the smallest places. The journey is planned ahead, so it helps to know about access.
Are you fully insured?
Yes. We are fully insured, and we’ve been doing sealant work for more than 20 years.
Will you leave a mess?
Tidy work is part of the job. We protect what’s around the joints, and the area is left clean when we finish.
Can you seal the gap between the frame and the plaster indoors?
Yes, we do both. Indoors, we seal between the frame and the plaster or reveal, using a paintable sealant if you want to decorate.
Can resealing stop a draught around my window?
Yes, where the draught is at the frame edge. We check where the draught is before any work starts.
How do I get a quote for window mastic in The Chart?
There’s no set price, as it depends on the job: how much there is, what’s there now, how we reach it and what it needs. You’ll get a clear quote before work begins.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done.
Towns and villages near The Chart
More services for The Chart
What affects the cost of window mastic
There’s no set price list, because jobs vary so much. The quote depends on:
- The type of sealant required
- How easy the joints are to reach
- Working hours on commercial sites
- The old material and how stubborn it is
What you pay reflects the work, not guesswork. That’s why we ask about the job first.
What to tell us for a quote
When you contact us, it’s useful to know:
- What the problem is, such as mould, gaps, leaks or cracking
- Where the property is
- If someone has resealed it before
- Photos by email, if that is easy
The more we know about the job, the more useful the quote. Tell us where the job is, what’s wrong and how much there is.
When it is not the sealant
We will not take on work that won’t last, so here’s what sealant cannot put right:
- A door that needs adjusting, rehanging or new seals
- Damp coming through the wall itself rather than the frame joint
- Condensation trapped between the panes
If in doubt, ring 0345 464 0079 or email us and we’ll say what we think.
Surfaces we seal
- Composite doors
- Timber windows & doors
- Window sills
- Aluminium frames
- uPVC windows
- Patio & French doors