West Sussex · England
Roffey Window Mastic
Our applicators work in Roffey on mastic around window and door frames, sills and patio doors. Old material cut out, joints cleaned and sealed neatly and every job guaranteed for a year.
- Cold air getting in at the frame edge
- Mastic that’s falling out in pieces
- A bead that doesn’t match the frame
What we do, step by step
We bring everything the job needs with us, so you don’t need to buy or prepare anything. After a quick look at the joints together, the area is protected and the work begins. Most jobs take a morning for a couple of windows and a door. In a smaller place like Roffey, parking is seldom the issue; lanes, gates and long drives are worth mentioning. If the job is outside, tell us about side access and how high the joints are.
- Each frame is looked over and we agree which ones need resealing.
- We remove the old mastic and clean the frame edge and wall.
- Where the gap is deep, backing rod goes in first.
- The new sealant goes on in white, brown, anthracite grey, black or clear to suit.
- Every joint is tooled smooth and checked before we leave.
Preparing for the visit
- Mention any tricky access
- Let us know if you’ve seen damp or leaks
- Tell us if parking is tricky
Ask for a quote
We quote each job on its own. Simply call 0345 464 0079 or drop us an email and describe the job, and photos are welcome.
Read more
Window mastic in Roffey, done properly
Every window and door frame has a gap around it, and mastic is what closes it. When it cracks, hardens or pulls away, draughts and rain get in. The old mastic is removed and the joint resealed with a flexible exterior sealant. We work on patio & French doors, aluminium frames and timber windows & doors, and the jobs we see most are rain getting in at the frame or under the sill and rushed sealant from a window installation.
Around Roffey, 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, and any older timber or sash windows need a sealant that suits them.
A 12-month guarantee comes as standard, so you are not left on your own once the job is done.

- Where
- Roffey (RH12, RH13)
- Region
- West Sussex
- Cover
- A year, on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
Work for landlords, hotels and businesses
Businesses can book us for washrooms, kitchens, offices and more. For commercial premises, we can talk through working times when we quote.
If you manage several properties in or around Roffey, jobs at different addresses can be quoted together. Just tell us the addresses and what each one needs, and pictures by email help.
Surface by surface
Composite doors
If the door itself is draughty, the issue may be the door seals or hinges rather than the frame mastic. We seal the frame and let you know about anything else.
Patio & French doors
Water at the foot of a door frame is not always the mastic: worn seals, blocked drainage slots or a poor threshold detail can be the cause. We check before we reseal.
DIY sealant or a professional job?
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.
If you’ve already had a go yourself, that is fine. We remove it and do the joint properly.
Quotes for window mastic in Roffey
Some jobs are bigger than they look, and some smaller. What affects the quote:
- How much old sealant there is and how hard it is to remove
- How many rooms, windows or areas are involved
- Which sealant suits the joint
- Any working-time requirements on site
Combining jobs into one visit generally makes better use of the time than several visits. You will get one clear quote for the whole job.
What we need to know
Before you ask for a quote, have a think about:
- The problem you’ve noticed
- The type of property
- The address or postcode of the job
- Photos by email, if that’s easy
Call for a quick quote, or email us if that’s easier. Tell us about the joints that need doing and we’ll explain what’s involved before giving you a price.
Why act early in Roffey
A quick bead over the top of old mastic looks like an easy fix, but it will not grip old, dirty sealant. It peels before long, and water still gets in behind. The old mastic has to come out. In a smaller place like Roffey, wherever a wall is exposed, a failed outside joint is a real source of damp. Indoors, a failed seal lets water into floors and panels as it would anywhere.
Some things make a job bigger or smaller: how much old sealant there is and how stubborn it is, any mould to treat, and whether the work is at height. Your quote takes all of that into account.
Why us?
- Anti-fungal sanitary silicone in wet areas
- Experience in homes, commercial sites and hotels
- 20+ years of sealant experience
- Every job guaranteed for a year
Read what affects the cost or what customers say.
FAQs for Roffey
Do you cover Roffey for window mastic?
Yes. We work across London and the South East, and Roffey is part of that. You can call 0345 464 0079 or drop us an email and let us know what needs doing.
I let a flat near Littlehaven station. Can you help?
Yes, we work for letting agents and landlords. Just phone 0345 464 0079 or email us and tell us about the property, and we will give you a clear quote.
Will new mastic stop draughts?
Yes, if the air is getting in around the frame. If it’s coming through the window seals, we’ll tell you.
Where are you based?
We work from Crawley. We cover Roffey and the rest of West Sussex, along with the rest of our area.
Can you do several jobs on one visit?
Yes, we can. More than one area can be quoted together.
Do you work on first-floor windows?
Usually, yes. We plan safe access before the job.
What information do you need?
Let us know what needs doing and where, with photos by email if possible. If we need more, we’ll ask.
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. We’ll tell you how long your job needs when we quote.
Other services in Roffey
Do you need window mastic in Roffey?
Timber windows bring their own problems. Mastic painted over many times cracks with the paint, and the wood moves with damp as well as heat.
Most people get in touch after spotting something like this:
- Old mastic that has gone black or come away
- Hard, cracked sealant around windows
- Sealant in the wrong colour for the frame
- Cold air getting in at the frame edge
Letting a property close to Littlehaven station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
What your quote should include
- Whether all the old sealant comes out first
- Are they insured?
- What the cure time is
- Whether VAT is included
Frames and glazing around Roffey
Compared with the north and west, the South East gets less rain, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
For an older house near a landmark such as All Saints Church, the joint between an old wall and a newer frame is normally the first place rain gets in. Managing a site like Northolmes Junior School? Then larger buildings have plenty of frames, and the mastic around each one ages.
Roffey is about 1 mile north-east of Horsham, in West Sussex. Wherever you are in the RH12 postcode area, our applicators can take on window mastic. Roffey is one of 371 towns and villages in West Sussex where we work.
Jobs for window mastic in RH12 and RH13 is quoted and booked the same way as anywhere else. Window mastic is available to properties on Innes Road, Agate Lane and Manor Road and the roads around them. We also cover Mannings Heath (2 miles south), Faygate (2 miles north-east), Colgate (2 miles east), Monk's Gate (3 miles south) and Kilnwood Vale (3 miles north-east). We also work in nearby towns such as Crawley (5 miles north-east), Haywards Heath (10 miles south-east), Burgess Hill (11 miles south-east), East Grinstead (13 miles east), Broadfield (4 miles east) and Storrington (12 miles south-west).
Landmarks near Roffey
In Roffey, that means homes and buildings near Bohunt Horsham and Millais School. Roffey’s nearest station is Littlehaven station, roughly 0.6 miles north-west of the centre. A little further out are Christs Hospital School Museum (3.5 miles south-west) and Horsham Hospital (1.1 miles west). Not far away are Warnham LNR.
