Surrey · England
Window Mastic in Burstow
Mastic around window and door frames, sills and patio doors for householders, landlords and businesses in Burstow. Fully insured, ARBOMaster approved and guaranteed for a year.
- White mastic on grey or black frames
- Cracked sealant at the sill ends
- Mastic that has split away from the wall
How the job changes by surface
Window sills
Every drop off the glass ends up on the sill, so the joints at each end and underneath matter. They’re cut out and resealed with exterior sealant.
Composite doors
A composite door normally sits in a plastic outer frame, and the joint around it is sealed like a window. The bead is colour-matched to the frame.
Window mastic in Burstow
The mastic around a window or door seals the gap between the frame and the wall. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on aluminium frames, patio & French doors and uPVC windows, and people most often call us about draughts coming in around windows and doors and a bead that doesn’t match the frame.
Homes in small places like Burstow 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.
We stand behind the work with a 12-month guarantee, so you’re covered after we’ve gone.
- Place
- Burstow (RH6)
- Wider area
- Surrey
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Burstow homes and the weather
Compared with the north and west, the South East gets less rain, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
For site and facilities teams at buildings such as Oakwood School, larger buildings have plenty of frames, and the mastic around each one ages. If you live in an older home near Church of St Bartholomew, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Burstow is about 2 miles south-east of Horley, in Surrey. If you need window mastic in Burstow, please phone 0345 464 0079 or email us for a quick quote. We’re based in Crawley and cover Surrey, Burstow included. 395 places in Surrey are on our list, large and small.
Jobs for window mastic in RH6 is quoted and booked the same way as anywhere else. Streets in the area include Church Road, Church Lane and Green Lane, all of which we cover. Close by, we work in Fernhill (1 mile west), Shipley Bridge (1 mile south-west), Keeper's Corner (1 mile east), Copthorne (1 mile south) and Tinsley Green (1 mile south-west). Larger places within reach include Epsom (14 miles north-west), Redhill (6 miles north), Ewell (15 miles north), Reigate (6 miles north-west), Caterham (9 miles north) and Dorking (10 miles north-west).
What’s near Burstow
We work in homes and buildings around The Shipley Bridge pub and the streets around them. The nearest railway station is Gatwick Airport station, about 1.3 miles west. Well-known places in the area include Langley Green Hospital (3.1 miles south-west) and County Mall (3.7 miles south-west). For a walk, there’s Hedgecourt Lake.
DIY sealant or a professional job?
A careful DIYer can reseal a simple joint, like a short, easy-to-reach joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
If you are set on DIY, put the effort into preparation: take out all the old sealant, make sure the joint is clean and dry, and give it the full cure time. If it doesn’t work out, we can still put it right.
Keeping the joints in good condition
After the cure time, these simple habits help:
- Repaint timber before it’s bare
- Walk round the house once a year and look at the joints
- Air rooms to keep condensation down around windows
- Don’t paint over the silicone
Clean the frames with mild soapy water, and avoid solvent cleaners on the sealant.
Water gets in quietly when mastic fails. You might not see it until plaster blows or a damp patch appears inside. Early resealing stops it reaching that point.
For landlords and businesses
For anyone letting property in or around Burstow, jobs at different addresses can be quoted together. Send us the addresses and the work at each.
Mouldy or split sealant often shows up at the end of a tenancy. Several properties can go on one quote.
When it isn’t the sealant
Some problems need a builder, plumber or other trade rather than us:
- A frame that has rotted at the joint
- A sash or casement that will not close properly
- Damp problems in the wall away from the window
If you are not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
What we seal
- Timber windows & doors
- Window sills
- uPVC windows
- Aluminium frames
- Composite doors
- Patio & French doors
How the visit works
Most of a good job is in the preparation, so that is where we spend the time. Every joint is cleaned and dried before new material goes in. In total, it generally takes a few hours for a few frames, or a day or more for a whole house. For a village or hamlet like Burstow, the journey is planned in advance: tell us about narrow lanes, gates, long drives and where we can park. Everything for the job comes with us, so a second trip is avoided where possible.
- First we look at every frame and agree the list.
- The old mastic is cut out and the surfaces cleaned back.
- Where gaps are deep, backing rod goes in first.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- We clear up and check every joint is fully closed.
How to prepare
- Mention any leaks or damp you’ve noticed
- Move anything stored near the joints
- Tell us if parking is tricky
Get a quote
We don’t publish a price list. Instead, we send you a clear quote for your job. To get started, call 0345 464 0079 or drop us an email.
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Your questions about window mastic in Burstow
Can you do window mastic in Burstow?
Yes. We work across London and the South East, and Burstow is part of that. You can ring 0345 464 0079 or send us an email and let us know what needs doing.
Do you work for landlords with property near Gatwick Airport station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.
Can you seal the gap between the frame and the plaster indoors?
Yes. Draughts often come through the inside gap too, so sealing both is often worthwhile.
Can I paint over the new sealant?
That depends on the product. Some hybrid sealants can be painted; silicone can’t. Mention any painting plans before we start.
What does window mastic cost?
It depends on the job, so we quote each one individually. To get one, phone 0345 464 0079 or send us an email and let us know what needs doing and where.
Is it OK to seal over old sealant?
No. We remove every bit of old sealant first, so the new sealant bonds properly.
Are you an approved applicator?
Yes. We’re an ARBOMaster approved applicator, which is run for the Arbo sealant brand.
Does someone need to be in?
It depends on the job. For work indoors, someone needs to let us in, while outside work can sometimes be arranged differently.
Also in Burstow
Signs you need window mastic in Burstow
Sun, frost and rain wear sealant out. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
People usually contact us after spotting one of these:
- White mastic on grey or black frames
- Draughts coming in around windows and doors
- Rushed sealant from a window installation
- Black, perished sealant on frames
Letting a property close to Gatwick Airport station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Questions to ask before you book
- Whether you can choose the colour
- How long the guarantee is
- How hidden problems are handled
- Whether the sealant suits the joint