West Sussex · England
Ingrams Green Window Mastic
Window mastic for Ingrams Green, by sealant specialists with 20+ years’ experience. Rated 4.9 on Google from 180+ five-star reviews.
- Sealant in the wrong colour for the frame
- Old mastic that has gone black or come away
- Hard, cracked sealant around windows
How we handle window mastic in Ingrams Green
The new joint doesn’t have to be white. White, brown, anthracite grey, black and clear sealants are all available, so the bead blends with the window rather than framing it. If you have water coming in at the bottom corners of a door and gaps left after new windows were fitted, we can put it right, on uPVC windows, patio & French doors and window sills alike.
Somewhere as small as Ingrams Green, older homes often have timber frames set in stone or brickwork. Older buildings like these don’t always suit modern silicone, and sometimes a traditional sand mastic is the better choice.
Our work is backed for twelve months, in Ingrams Green and everywhere else we cover.

- Location
- Ingrams Green (GU29)
- Wider area
- West Sussex
- Guarantee
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Last updated
- 26 October 2026
Aftercare tips
Joint life depends on how it’s used and looked after. Here’s what we suggest:
- Check the mastic once a year
- Keep timber frames painted
- Use gentle cleaners on frames and sealant
- Keep solvents and bleach off the sealant
Keep the new mastic undisturbed while it cures, following the cure time we give you. Keep jet washers away from the frames.
Draughts get worse, not better. As the old mastic shrinks further, more air gets through, and heat escapes around the frame. A new joint closes it up.
Nearby places to Ingrams Green
Also in Ingrams Green
What we are called out for in Ingrams Green
Sun, frost and rain wear sealant out. Sunlight dries the surface out, and over the years it loses its give, cracks and comes away.
The most common problems we see are:
- Hard, cracked sealant around windows
- Damp patches on the reveal after heavy rain
- Black, perished sealant on frames
- Cracked sealant at the sill ends
Around Ingrams Green, as everywhere, window mastic is only as good as the preparation behind it.
Questions to ask before booking
- The length of the guarantee
- Whether you can choose the colour
- How the surfaces are prepared before sealing
- How hidden problems are handled
When something else is needed
In fairness, some problems need a different trade:
- Misting between the panes of a double-glazed unit (that needs a new unit)
- Soft or decayed wood in the frame
- Damp coming through the wall itself rather than the frame joint
If you’re not sure, just call 0345 464 0079 or drop us an email and we’ll give you a straight answer before you book.
Surfaces we seal
- Aluminium frames
- Patio & French doors
- Composite doors
- Window sills
- uPVC windows
- Timber windows & doors
What we do, step by step
Every visit runs the same way: we check the joints, protect the area around them, do the work and clear up. Most jobs take a few hours for a few frames, or a day or more for a whole house. Somewhere as small as Ingrams Green, access is often the only tricky part. If the job is outside, mention outbuildings, exposed walls and how to reach them.
- First, we go round the frames with you and agree the list.
- The old mastic is cut out and scraped back to clean surfaces.
- Where the gap is deep, backing rod goes in first.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Getting ready for the visit
- Let us know about parking restrictions
- Mention any sign-in or site rules at work premises
- Keep children and pets away from the work area
How to get a quote
Want a quote for window mastic? Please call 0345 464 0079 or send us an email and tell us about the job. We will explain what we’d do and send you a clear quote before any work starts.
Related advice
Different surfaces, different methods
uPVC windows
Some uPVC windows were sealed at fitting with a quick bead that never bonded. It comes out, deep gaps get backing rod and the joint is resealed.
Window sills
Sills catch the water running down the glass, so the joints at each end and underneath matter. They’re cut out and resealed with exterior sealant.
What window mastic looks like in Ingrams Green
With historic houses such as Cowdray House (about 3.1 miles east) nearby, there’s older building stock in the area around Ingrams Green as well as newer homes. In older buildings, older timber frames in brick or stone need a different approach from a modern uPVC window. 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.
Cowdray House, about 3.1 miles east, is one of the historic houses in the wider area around Ingrams Green.
Ingrams Green is about 6 miles east of Petersfield, in West Sussex. From the centre of Ingrams Green to the outskirts, we cover window mastic for every kind of property, from flats and houses to offices and hotels. Our area takes in 371 places across West Sussex, from the larger towns to small villages. Portsmouth is on our list too, around 17 miles away.
Jobs for window mastic in GU29 works the same way as everywhere else we cover. Close by, we work in Elsted Marsh (1 mile west), Didling (1 mile south), Dumpford (1 mile north-west), Trotton (1 mile north) and Elsted (2 miles west). We also work in nearby towns such as Bognor Regis (14 miles south), Chichester (9 miles south), Emsworth (11 miles south-west), Billingshurst (15 miles east), Portfield (10 miles south) and Yapton (14 miles south-east).
Near you in Ingrams Green
A little further out are Midhurst Community Hospital (3 miles east) and Midhurst Museum (2.8 miles east). Not far away are Iping and Stedham Commons.
DIY sealant or a professional job?
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 fails, we can still redo it.
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. Everything old must be removed first.
Leave it or put it right?
Draughts and leaks don’t always mean new windows. If the frames and glass are in good order, resealing the joints is often all that is needed. Problems with the glass or gaskets are for a window company, and we will say so. Around Ingrams Green, 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, so it’s worth mentioning everything you’d like done. You will get one clear quote for the whole job.
Why choose Mr Mastic in Ingrams Green
- Full insurance on every job
- Old sealant always removed completely
- Approved under the ARBOMaster scheme
- Sealant colour chosen to suit
Ingrams Green questions
Is window mastic in Ingrams Green guaranteed?
All our work, in Ingrams Green and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Do you cover Ingrams Green for window mastic?
Yes, Ingrams Green is within the area we cover. We work across London and the South East. Just call 0345 464 0079 or drop us an email with a few details of the job, and we will give you a clear price.
Can new sealant go over the old?
No, because it fails. The old sealant always comes out first.
What do you put in the joint?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Are you an approved applicator?
Yes. We’re approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
How long should I leave it?
Most sealants are touch-dry well before they’re fully cured. We will give you the cure time for the product we used before we leave.
How much does window mastic cost in Ingrams Green?
We do not publish prices, because the cost depends on the job: how much there is, what’s there now, how we reach it and what it needs. We agree the price before any work begins.
Can you do the inside joint as well?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
