West Sussex · England
Tilgate Window Mastic
Window mastic for Tilgate, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Cracked or shrunken mastic around the frame
- Damp patches on the reveal after heavy rain
- Untidy mastic left by window fitters
How we handle window mastic in Tilgate
Over two decades of sealing frames has taught us which products suit which walls. We are fully insured ARBOMaster approved applicators, and we give a 12-month guarantee on the work. We are often asked to deal with whistling draughts around closed windows and hard, cracked sealant around windows, across timber windows & doors, composite doors and uPVC windows.
Around Tilgate, conservatories, garden rooms and patio doors are often part of the house. Their glazing joints and frame seals are as much a part of the job as the windows.
All of our work is guaranteed for twelve months, in Tilgate and everywhere else we cover.
- Where
- Tilgate (RH10, RH11)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Last updated
- 26 October 2026
What we cannot put right
Some problems need a builder, plumber or other trade rather than us:
- Faulty window hardware
- Damp coming through the wall itself rather than the frame joint
- Misting between the panes of a double-glazed unit (that needs a new unit)
If in doubt, ring 0345 464 0079 or send us an email and we will say what we think before booking.
What we seal
- Patio & French doors
- Aluminium frames
- Composite doors
- Timber windows & doors
- Window sills
- uPVC windows
How it works
The work is kept neat and contained to the joints we are treating, so you can get on with your day. The job usually takes most of a day for a typical house, less for a few frames, and we tell you how long to leave it before we go. For a job in Tilgate, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- First we look at every frame and agree the list.
- We remove the old mastic and clean the frame and the wall.
- Where gaps are deep, backing rod goes in first.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Every joint is checked before we leave.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Let us know if you’ve seen damp or leaks
- Clear items away from the joints we’re working on
Getting a quote
To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You’ll have a clear quote before any work starts.
Related advice
Frames and glazing around Tilgate
Tilgate is part of Crawley, one of the post-war new towns. Many homes date from the post-war decades, and many will have had their original windows replaced. The mastic around replacement frames ages too, and gaps at sills and frame heads are where water gets in. Historic houses like Tyes Place (about 4.6 miles south) are a reminder that the area around Tilgate 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.
Homes close to Holy Trinity include some older properties, and the windows may be timber, sash or later replacements, and each needs the right sealant against the wall. If you look after a building such as The Oaks Primary School & Nursery, its window and door frames need their mastic kept sound, just like a home’s.
Tilgate is about 1 mile south-east of Crawley, in West Sussex. Jobs in Tilgate get the same care as everywhere else we work: the old material taken out, joints prepared properly and a 12-month guarantee. 371 places in West Sussex are on our list.
Work in RH10 and RH11 is quoted and booked the same way as anywhere else. We cover properties on York Road, Nash Road and Cook Road. Neighbouring places we cover for window mastic include Southgate (1 mile west), Crawley (1 mile north-west), Three Bridges (1 mile north-east), Maidenbower (1 mile east) and West Green (1 mile north-west). Further out, we also cover Horsham (7 miles south-west), Haywards Heath (8 miles south-east), Burgess Hill (10 miles south), East Grinstead (7 miles east), Billingshurst (13 miles south-west) and Roffey (6 miles west).
Local landmarks in Tilgate
Typical jobs here are in homes near Thomas Bennett Community College, The Grasshopper pub and Tilgate Park. For rail, the closest station is Crawley station, about 0.6 miles north-west of the centre. Nearby you will also find County Mall (0.7 miles north-west) and Crawley Hospital (1.2 miles north-west). Open spaces near Tilgate include Tilgate Lake.
Also near Tilgate
What else we do in Tilgate
What affects the cost of window mastic
We do not publish a price list, because no two jobs are the same. What we look at:
- The type of sealant required
- The size of the job
- When we can work, for business premises
- Any mould that needs treating
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please phone 0345 464 0079 or send us an email.
What we need to know
Before you ask for a quote, have a think about:
- What the problem is, such as mould, gaps, leaks or cracking
- Any access issues, like height or stairs
- Where the job is, and your postcode
- The rough size of the job
We do not publish a price list, because every job is different. Instead, we send you a clear quote for your job. To get started, ring 0345 464 0079 or send us an email.
Common questions in Tilgate
Can you help a landlord with a rental near Crawley station?
Yes, rental work is part of what we do. Just phone 0345 464 0079 or send us an email and tell us about the property, and we will send you a clear quote.
Should the sealant in an older Tilgate home be renewed?
Often, yes: cracked, shrunken or mouldy sealant has done its job. New sealant won’t stick to old, so the old bead has to come out completely first.
Can resealing stop a draught around my window?
It will if the frame joint is the problem. We check where the draught is before we start.
Do the sealants smell?
There can be a smell while the sealant cures. Opening a window helps.
Can you reach windows above the ground floor?
Yes, if safe access is possible. For high or awkward windows, we’ll tell you what access is needed.
How long does it take to reseal the windows on a house?
That depends on the number of frames, how they’re reached and the state of the old mastic. You’ll know the timing when we quote.
Will you leave a mess?
Tidy work is part of the job. Nearby surfaces are protected, and the area is left clean when we finish.
How do I get a quote for window mastic in Tilgate?
It depends on the job, so we quote each one individually. To get one, call 0345 464 0079 or send us an email with a short description of the job.
Common problems we fix in Tilgate
Sun, frost and rain wear sealant out. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
Most people get in touch when they notice one of these:
- Cracked sealant at the sill ends
- Old mastic that has gone black or come away
- Rushed sealant from a window installation
- Gaps between the frame and the inside reveal
Rented homes near Crawley station change hands often, and cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets.
Questions to ask before booking
- Is the old sealant removed completely?
- What the cure time is
- How the surfaces are prepared before sealing
- Whether the sealant suits the joint
Why deal with it now?
Resealing frames is a short job: the visit takes a morning for a couple of windows and a door. Leave it until water is coming in and you may need plastering and decorating as well. In an older home around Tilgate, damp from a failed joint can get into timber and plaster, which is far harder to put right than the sealant itself.
What you pay reflects the work, not a rough estimate. That’s why we ask about the job first and agree the price before starting.
Why book with us
- Homes, businesses and hotels
- We leave the area clean and tidy
- Anti-fungal silicone where joints get wet
- 12-month guarantee on every job
See our cost guide and what customers say.
Landlords, agents and businesses in Tilgate
For anyone letting property in or around Tilgate, several properties can be quoted together. Send us the addresses and the work at each, and photos by email help.
In hotels, rooms out of use cost money, so the work can be planned room by room. We’ve worked in hotels as well as homes and businesses.
Should I try it myself first?
The difference is mostly in the preparation and the product. Joints are cleaned back to sound surfaces and dried, and the sealant is chosen for how the joint moves and where it is, then guaranteed for a year.
Some sealant jobs are within reach of a careful DIYer, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.