West Sussex · England
Brooks Green Window Mastic
Problem with your window and door frames in Brooks Green? We cut out the old, prepare the joints and apply the right sealant.
- Old mastic that has gone black or come away
- Mastic that has split away from the wall
- Gaps left after new windows were fitted
Window mastic for homes and businesses in Brooks Green
Behind a thin line of old mastic there’s sometimes a deep void. 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 composite doors, uPVC windows and window sills, and common reasons people get in touch are gaps between the frame and the inside reveal and damp patches on the reveal after heavy rain.
Around Brooks Green, many homes face open ground, so their windows and doors take the full weather. Exposed frames and sills lose their mastic sooner than sheltered ones.
All our work comes with our one-year guarantee.
- Place
- Brooks Green (RH13)
- Wider area
- West Sussex
- Cover
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
How to look after the new joints
To keep the joints looking good and working properly:
- Ventilate rooms so frames do not stay wet inside
- Do not paint over the silicone
- Use gentle cleaners on frames and sealant
- Avoid harsh chemicals near the mastic
Check the drainage slots in the frames are not blocked, so rain drains out rather than building up at the sealant.
Draughts get worse, not better. As old mastic keeps shrinking, the gap widens, and a cold room gets colder. A new joint closes it up.
Can I do it myself?
Some sealant jobs are within reach of a careful DIYer, like a short, easy-to-reach joint indoors. Where it goes wrong is sealing over the old bead, working on a wet joint or overloading the gap.
What a professional job adds is preparation and the right product. We take joints back to clean, dry surfaces, and the sealant is matched to the joint and its conditions, then guaranteed for a year.
Landlord and commercial work in Brooks Green
Water getting past a failed joint can damage the building, which matters even more when someone else lives there. Keeping joints in good order is simple maintenance.
Letting agents often deal with us directly. Tell us the address, the job and how access works and we’ll quote.
Signs you need window mastic in Brooks Green
Older frames were often sealed with products that set hard. Once it’s rigid, every bit of frame movement pulls at it, leaving a hairline gap down one side.
People generally contact us when they notice something like this:
- Gaps where the sill meets the wall
- Sealant in the wrong colour for the frame
- Rushed sealant from a window installation
- Draughty joints inside around the window
Schools such as Barns Green Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
What to look for in a quote
- Which colour the sealant will be
- Whether they’re fully insured
- What happens if they find a problem under the old sealant
- Whether VAT is included
What happens if it’s left?
If you are painting or rendering, reseal at the same time. A clean new bead makes new paint or render look finished. Around Brooks Green, older homes often have timber in their floors and frames, and water through a failed joint can rot timber if it’s left.
Instead of a standard rate, we look at what your job involves: the amount of work, the old material and the access. The price is agreed before we begin.
Why us?
- White, clear, grey or another colour, product permitting
- Old sealant always removed completely
- Homes, businesses and hotels
- 180+ five-star Google reviews
Different surfaces, different methods
Window sills
Masonry sills can have joints where water gets in, including the one between the sill and the frame above. We seal those with a sealant suited to masonry.
uPVC windows
uPVC expands and contracts noticeably with temperature, so we use a flexible, low-modulus sealant. We match white, brown, anthracite grey and black frames.
Questions from Brooks Green
Do you work for landlords with property near Billingshurst station?
Yes, we work for landlords and letting agents. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we’ll give you a fixed price before work begins.
Can you do window mastic in Brooks Green?
Yes. We work across London and the South East, and Brooks Green is part of that. You can ring 0345 464 0079 or drop us an email and tell us what needs doing.
Can you do upstairs windows?
Yes, where they can be reached safely. Tell us about access when you get in touch and we will plan for it.
What do you need from me for a quote?
The location, the problem and the rough size of the job. Photos by email help too.
Do you do commercial work?
Yes. Commercial and hotel work is a large part of what we do, as well as homes. Working times can be discussed when we quote.
Will new mastic stop draughts?
Yes, where the draught is at the frame edge. We find where the air is coming from before we reseal.
Can you seal the gap between the frame and the plaster indoors?
Yes. Plenty of draughts come through the inside joint as well as the outside, so it can be worth sealing both.
Is the work guaranteed?
Yes. Each job is covered for 12 months, inside or out.
Windows and doors in Brooks Green
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 landlords with property near Billingshurst station, renewing tired window mastic between tenants heads off draught and damp complaints.
Brooks Green is about 5 miles south-west of Horsham, in West Sussex. Anywhere in RH13, we can carry out window mastic at your property. 371 places in West Sussex are on our list. For nearby work, see our Crawley page (11 miles or so).
Work in RH13 works the same way as everywhere else we cover. Whether your property is on Trout Lane, Woodland Avenue and Emms Lane or anywhere close by, we can help. Neighbouring places we cover for window mastic include Barns Green (1 mile north), Southwater (2 miles east), Itchingfield (2 miles north), Tower Hill (3 miles north-east) and Maplehurst (4 miles east). Within a short drive, we also cover Crawley (11 miles north-east), Horsham (5 miles north-east), Worthing (13 miles south), Haywards Heath (13 miles east), Burgess Hill (12 miles east) and Littlehampton (15 miles south-west).
Landmarks near Brooks Green
The closest station to Brooks Green is Billingshurst station, roughly 2.6 miles west of the centre. Nearby you’ll also find Horsham Hospital (4.7 miles north-east) and Christs Hospital School Museum (2.3 miles north-east). Green spaces nearby include Knepp Wildland.
Nearby places to Brooks Green
Other services in Brooks Green
How it works
When we get to you, we compare the joints with what we discussed. If anything is different, we explain it before carrying on. Most jobs then take most of a day for a typical house, less for a few frames. In a small place like Brooks Green, access is usually the main thing to plan. For outside work, also let us know about exposed walls and any outbuildings involved.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away, along with any loose debris.
- Frame and wall are cleaned and must be dry before sealing.
- Backing rod fills deep voids and the sealant goes in on top.
- The joint is shaped to shed water and the area tidied.
Before we arrive
- Tell us about any water getting in
- Let us know about stairs, lifts or work at height
- Try not to wet indoor joints just before the visit
Ask for a quote
To get a quote, phone 0345 464 0079 or email us and tell us where the job is and what the problem looks like. We will give you a clear quote before any work starts.