West Sussex · England
Window Mastic in Ifieldwood
Window and door frames in Ifieldwood need attention? We remove the old material, prepare the joints and seal them properly, and the work is guaranteed for a year.
- Whistling draughts around closed windows
- Cracked sealant at the sill ends
- A bead that does not match the frame
Questions from Ifieldwood
Is Ifieldwood within the area you cover?
Yes, we do. Our work covers London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Do you work for landlords with property near Ifield station?
Yes, landlords and agents are among the people we work for. You can ring 0345 464 0079 or email us with the details for a clear quote.
Where is Mr Mastic based?
We are a Crawley-based firm, with over 20 years’ experience. We work across South East England, London and Scotland.
Do the sealants smell?
Some sealants have a smell while they cure, but it fades. Ventilation helps.
Do you guarantee window mastic?
Yes. Each job is covered for 12 months, inside or out.
Can I do it myself?
That depends on the joint. Work at height, movement joints, fire-rated gaps and large areas are best left to a professional.
Do I need to be at home?
For indoor joints, yes, someone needs to let us in. Once we have agreed the job, you do not need to watch us work.
How long does it take to reseal the windows on a house?
A few frames take a few hours. We confirm the timing with your quote.
About our window mastic in Ifieldwood
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. Our applicators cut it out and replace it with a flexible, weatherproof sealant. If you’re dealing with mastic that has split away from the wall and sealant in the wrong colour for the frame, we can help, whatever the surface.
Outdoor sealant needs dry, clean surfaces, so work on frames around Ifieldwood is planned for dry weather. Tell us about access to every side of the house, including upper-floor windows.
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
- Ifieldwood (RH11)
- Region
- West Sussex
- Guarantee
- 12 months on all our work
- Quote
- Quoted before any work starts
- Call
- 0345 464 0079
- Page updated
- 26 October 2026
What sealant work can’t fix
Before booking, it’s worth knowing the limits:
- Damp coming through the wall itself rather than the frame joint
- Worn gaskets, brush seals or a door that has dropped
- Rotten timber, which needs a joiner first
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly before you book.
Joints and surfaces we work on
- Patio & French doors
- Timber windows & doors
- Composite doors
- uPVC windows
- Window sills
- Aluminium frames
What happens on the day
There’s no need to move everything out before we come, only the area right around the joints. We protect the rest, and the job takes a morning for a couple of windows and a door in most cases. In a small place like Ifieldwood, access is usually the main thing to plan. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First we look at every frame and agree the list.
- Next the failed sealant is cut away and the joint cleaned.
- Deep gaps are filled with backing rod to set the depth.
- New exterior sealant goes on in a matching colour and is tooled smooth.
- Finally we tidy up and check each joint.
Getting ready for the visit
- Mention if the joints have been sealed before
- Move anything stored near the joints
- Mention any leaks or damp you’ve noticed
How to get a quote
A good description makes for an accurate quote. Tell us where the job is, what’s wrong and how much there is.
Read more
Can I do it myself?
A careful DIYer can reseal a simple joint, such as a straightforward joint indoors. The common mistakes are sealing over old sealant, sealing a damp joint and using far too much.
Sealing over old silicone is the commonest DIY error. New silicone won’t bond to old, so it peels away and traps moisture behind it. All the old material has to come out first.
Keeping the joints in good condition
Looking after new joints is easy, and it makes a real difference:
- Clean frames with a soft cloth and soapy water
- Keep solvents and bleach off the sealant
- Repaint timber before it’s bare
- Keep paint off silicone joints
Try not to touch the new joint while it cures, for as long as we advise. Do not point a pressure washer at the joints.
Water trapped behind a failed joint can start rot in timber frames and sills. Rotten timber needs a joiner, not a sealant, so it pays to reseal before that happens.
Different surfaces, different methods
Aluminium frames
Large aluminium doors have long joints down each side and across the head, and the threshold joint takes a lot of water. Each is cleaned, backed where deep and resealed.
Timber windows & doors
Wood swells when it’s wet and shrinks when it dries, so the joint must stay flexible. The paint or stain needs to be sound where the sealant meets it.
When to call us in Ifieldwood
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:
- Gaps between the frame and the inside reveal
- Draughts coming in around windows and doors
- Rain getting in at the frame or under the sill
- Untidy mastic left by window fitters
For an older house near a landmark such as St Margaret's Church, frames set in older brick or stone need a sealant that suits the wall as well as the frame.
Before booking anyone
- What happens if they find a problem under the old sealant
- How the surfaces are prepared before sealing
- What insurance they hold
- Whether you can choose the colour
Landlords, agents and businesses in Ifieldwood
Failed sealant is one of the commonest items on a check-out report. We can quote for more than one property at once.
Water getting past a failed joint can damage the building, which is a bigger problem in a rented property. Keeping joints in good order is simple maintenance.
Frames and glazing around Ifieldwood
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For landlords with property near Ifield station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. Managing a site like The Mill Primary Academy? Then its window and door frames need their mastic kept sound, just like a home’s.
Ifieldwood is about 2 miles north-west of Crawley, in West Sussex. For window mastic in and around Ifieldwood, please call 0345 464 0079 or send us an email for a quick quote. We cover West Sussex from our Crawley base. Our area takes in 371 places across West Sussex, from the larger towns to small villages.
Work in RH11 works the same way as everywhere else we cover. Other places close to Ifieldwood include Ifield (1 mile east), Russ Hill (1 mile north), Lambs Green (1 mile south-west), Gossops Green (2 miles south-east) and Bewbush (2 miles south). Further out, we also cover Horsham (6 miles south-west), Haywards Heath (11 miles south-east), Burgess Hill (13 miles south), East Grinstead (10 miles east), Broadfield (3 miles south-east) and Billingshurst (12 miles south-west).
Near you in Ifieldwood
Typical jobs here are in homes near Ifield Community College and Royal Oak pub and the streets around them. For rail, the closest station is Ifield station, roughly 1.2 miles south-east. Other landmarks nearby include Crawley Hospital (1.8 miles south-east) and County Mall (2.3 miles south-east). Not far away are Tilgate Lake.