West Sussex · England
Window & door mastic in Broadfield, West Sussex
Mastic around window and door frames, sills and patio doors in Broadfield, with a one-year guarantee on every job. Call for a quick quote.
- Water coming in at the bottom corners of a door
- A bead that does not match the frame
- Hard, cracked sealant around windows
Window mastic in Broadfield, done properly
There are two joints on most windows. Outside, the mastic keeps rain out; the internal joint closes the gap to the plaster and stops draughts. Either or both can be done. If you have mastic that has split away from the wall and a bead that doesn’t match the frame, we can put it right.
In smaller places like Broadfield, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. Each frame material needs the right sealant against the right wall.
All of our work is guaranteed for twelve months, in Broadfield and everywhere else we cover.
- Location
- Broadfield (RH11, RH10)
- Region
- West Sussex
- Guarantee
- 12 months on all our work
- Price
- A clear price before we start
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
Why it’s worth doing now in Broadfield
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’s needed. If we find failed glass units or worn seals, we will tell you. Around Broadfield, water from a failed joint in an older home can soak into timber and plaster, which is far harder to put right than the sealant itself.
Every job is a little different, so we quote each one individually. Size, access and the product the joint needs all play a part.
What you get with us
- Trusted Arbo and Everbuild sealants
- Domestic, commercial and hotel work
- An ARBOMaster approved applicator
- Any old sealant cut out fully, not covered over
Read how sealant jobs are priced or our reviews.
Aftercare tips
Good habits help new joints last longer. Our tips:
- Don’t aim a pressure washer at the joints
- Wash the frames with mild soapy water
- Wipe condensation off the frames
- Do not use solvent cleaners on the joint
Most silicone sealants won’t take paint, so mention any painting plans before any work starts. We can use a paintable sealant where that matters.
Look out for the warning signs: cracks in the mastic, gaps you can see light through, damp on the reveal or mould around the inside of the frame. Any of these is worth a call.
Do you need window mastic in Broadfield?
Water runs down the glass onto the sill, and the ends of the sill, where it meets the wall, are where it gets in. Failed sealant there lets rain into the wall or behind the frame.
The most common problems we see are:
- Damp patches on the reveal after heavy rain
- Gaps left after new windows were fitted
- Mastic that has split away from the wall
- Draughty joints inside around the window
If you live in an older home near Christ The Lord, the joint between an old wall and a newer frame is usually the first place rain gets in.
What your quote should include
- Who turns up on the day
- Whether they’re fully insured
- What happens if the job turns out different
- Which colour the sealant will be
Different surfaces, different methods
Patio & French doors
Patio and French doors have the longest joints on most houses. The threshold and the bottom corners take the most water, so we pay close attention there.
Timber windows & doors
Where timber has rotted at the joint, it needs repairing first. If we find rot, we will tell you before going ahead, as that’s a job for a joiner.
Window mastic in Broadfield: local notes
Broadfield 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. That mastic ages as well, and sills and frame heads are where leaks start. With historic houses such as Tyes Place (about 4.4 miles south-east) nearby, there’s older building stock in the area around Broadfield as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that is traditional sand mastic.
For site and facilities teams at buildings such as Seymour Primary School, its window and door frames need their mastic kept sound, just like a home’s. For landlords with property near Crawley station, sound mastic around windows and doors keeps out the draughts and damp that tenants notice first.
Broadfield is about 1 mile south-west of Crawley, in West Sussex. We carry out window mastic for householders, landlords and businesses in Broadfield. 371 places in West Sussex are on our list, large and small.
We work across the RH11 and RH10 postcode area for window mastic and the streets around it. That includes homes and businesses on Terry Road, Hobbs Road and Clark Road. If you are just outside Broadfield, we cover Kilnwood Vale (2 miles west), Colgate (2 miles south-west), Faygate (2 miles west), Handcross (3 miles south) and Plummers Plain (4 miles south). Within a short drive, we also cover Horsham (5 miles west), Haywards Heath (8 miles south-east), Burgess Hill (10 miles south), East Grinstead (9 miles east), Billingshurst (12 miles south-west) and Roffey (4 miles west).
Around Broadfield
Around Broadfield, our work takes us to homes and buildings near Cottesmore School, Target Hill Park and The New Moon pub. The nearest railway station is Crawley station, about 1.4 miles north-east of the centre. A little further out are Crawley Hospital (1.5 miles north) and Crawley Museum (1.7 miles north-east). For a walk, there’s Tilgate Lake.
Towns and villages near Broadfield
Other services in Broadfield
Quotes for window mastic in Broadfield
For a quick quote, just ask. What matters most is:
- The amount of work
- Whether the work is at height
- The old material and how stubborn it is
- How many rooms, windows or areas are involved
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, whether mould needs treating, and whether the work is at height. Your quote takes all of that into account.
What to tell us for a quote
Photos help, but a description is a good start. Please mention:
- How many joints, rooms or windows are involved
- Pictures of the joints, sent by email
- The problem you’ve noticed
- If someone has resealed it before
For window mastic in Broadfield, call 0345 464 0079 or email us. Tell us what the problem is and where, and you’ll get a clear quote before any work starts.
Broadfield: your questions answered
Should the sealant in an older Broadfield home be renewed?
If it hasn’t been replaced for some years, it’s usually worth it. Sealant does not last for ever, and its life depends on use, cleaning and weather, and many homes in Broadfield may already be on their second or third set.
Is Broadfield within the area you cover?
Yes, Broadfield is covered. We work across London and the South East, and smaller places are part of that. Longer journeys are simply planned in advance.
Can you seal the gap between the frame and the plaster indoors?
Yes, we do both. Indoors, we seal between the frame and the plaster or reveal, using a paintable sealant if you want to decorate.
Can I paint over the new sealant?
Silicone generally will not take paint. Let us know beforehand, and we’ll use a paintable product where it suits.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned.
Do you work on first-floor windows?
Usually, yes. We plan safe access before the job.
Do you work for landlords and businesses?
Yes. As well as householders, we work for landlords, agents, businesses and hotels across West Sussex.
Where are you based?
We’re a Crawley-based firm. We work across South East England, London and Scotland.
Landlords, agents and businesses in Broadfield
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can be quoted together.
The process
Most of a good job is in the preparation, so that’s where we spend the time. Every joint is cleaned and dried before new material goes in. All told, the work takes most of a day for a typical house, less for a few frames. In a smaller place like Broadfield, parking is seldom the issue; lanes, gates and long drives are worth mentioning. For outside work, side access and the height of the joints help us plan.
- We check each frame and agree which ones need doing.
- We remove the old mastic and clean the frame and the wall.
- Deep gaps are filled with backing rod to set the depth.
- We apply a weatherproof sealant to match the frame and tool it neatly.
- We clear up and check every joint is fully closed.
Preparing for the visit
- For indoor joints, keep the area dry beforehand if you can
- Mention any leaks or damp you’ve noticed
- Tell us about access, such as stairs, a lift or high-level joints
Ask for a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. A few pictures by email make the job easier to understand, and we’ll take it from there.