West Sussex · England
Window & door mastic in Burgess Hill, West Sussex
Mastic around window and door frames, sills and patio doors for homeowners, landlords and businesses in Burgess Hill. ARBOMaster approved applicators, fully insured, with a one-year guarantee.
- White mastic on grey or black frames
- Mastic that is falling out in pieces
- Leaking joints at the ends of sills
How we handle window mastic in Burgess Hill
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. We are often asked to deal with sealant in the wrong colour for the frame and mastic that’s falling out in pieces, across aluminium frames, uPVC windows and window sills.
In a town like Burgess Hill, older houses sit alongside newer estates, with windows of every age. All of them depend on a sound bead of mastic between frame and wall.
All our work is covered by our 12-month guarantee, wherever you are in West Sussex.
- Place
- Burgess Hill (RH15)
- Region
- West Sussex
- Cover
- A year, on every job
- Quotes
- Quoted before any work starts
- Telephone
- 0345 464 0079
- Page updated
- 26 October 2026
What affects the quote in Burgess Hill
Jobs vary more than people expect. What affects the quote:
- Whether old sealant or filler has to be cut out
- Mould in or behind the old joints
- How many rooms, windows or areas are involved
- Which sealant suits the joint
Rather than a set price list, we look at what your job involves: how many joints, what’s in them now and how we reach them. The price is agreed before we begin.
Asking for a quote
Photos by email are helpful but not essential. Try to tell us:
- Where the job is, and your postcode
- If someone has resealed it before
- The type of property
- A few pictures by email, if you can
To get a quote, call 0345 464 0079 or email us with the location and a short description of the problem. You will have a clear quote before work begins.
Also near Burgess Hill
More services for Burgess Hill
What window mastic looks like in Burgess Hill
The South East is one of the drier parts of the UK, yet outdoor joints still have to be sealed dry, so jobs are booked with the weather in mind. With historic houses such as Ockenden Manor (about 3.4 miles north) nearby, there’s older building stock in the area around Burgess Hill 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.
If you let a flat or house near Burgess Hill station, cracked frame mastic tends to show up as a draught or damp complaint, so it’s worth checking between lets. In the older streets around St John the Evangelist's Church, the windows may be timber, sash or later replacements, and each needs the right sealant against the wall.
Burgess Hill is about 9 miles north of Brighton, in West Sussex. From the centre of Burgess Hill to the outskirts, window mastic is available for homes and businesses alike, from flats and houses to offices and hotels. 371 places in West Sussex are on our list. There’s also a page for Brighton, roughly 9 miles from Burgess Hill.
Our applicators cover all of the RH15 postcode area for window mastic. Whether your property is on Church Road, Station Road and Lower Church Road or a nearby road, we can help. Being close to the A273 and B2036, Burgess Hill is easy for our applicators to reach. We also cover Jacob's Post (1 mile west), World's End (1 mile north-east), Abbotsford (1 mile north-west), Goddards Green (2 miles west) and Hurst Wickham (2 miles south-west). Larger places within reach include Crawley (11 miles north), Horsham (11 miles north-west), Worthing (15 miles south-west), Haywards Heath (3 miles north-east), East Grinstead (13 miles north-east) and Shoreham-by-Sea (10 miles south-west). Burgess Hill is among the bigger towns we cover in West Sussex.
What’s near Burgess Hill
In Burgess Hill, that means homes and buildings near Burgess Hill Girls, Oakmeeds Community College and The Six Gold Martlets pub. Burgess Hill has its own railway station: Burgess Hill station. Other landmarks nearby include Burgess Hill Museum (less than half a mile south-west) and Clayton Castle (3.4 miles south). Green spaces nearby include Bedelands Farm Nature Reserve and Wolstonbury Hill.
Burgess Hill questions
Is window mastic in Burgess Hill guaranteed?
All our work, in Burgess Hill and everywhere else, comes with a 12-month guarantee. We are also fully insured and ARBOMaster approved.
Can you help a landlord with a rental near Burgess Hill station?
Yes. We work for letting agents and landlords as well as householders, and several properties can be quoted together. You can ring 0345 464 0079 or send us an email with the details for a clear quote.
Are you insured?
Yes. Mr Mastic is fully insured, with over 20 years’ experience in sealant work.
Should I try DIY first?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. If it does not work out, we can redo it.
How much does window mastic cost in Burgess Hill?
Size, access and the old material all affect the cost. Ask us for a quote and we will talk you through it.
What should I tell you?
Just the basics: where it is, what you’ve noticed and how we reach it. Then ring 0345 464 0079 or drop us an email.
How long before the joint can be used?
Different products cure at different speeds, so please follow the time we give you.
Can you do several jobs on one visit?
Of course. Combining jobs makes good use of the visit.
Different surfaces, different methods
Timber windows & doors
Timber moves with moisture as well as heat, so a flexible sealant is essential. We seal onto sound, dry paintwork or timber.
Composite doors
Front doors take the weather head on. Those corners get the most care.
Landlords, agents and businesses in Burgess Hill
Mouldy or split sealant often shows up at the end of a tenancy, and it’s quick to put right between tenancies. Several properties can go on one quote.
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.
What we do, step by step
There is not much for you to do on the day. Point us to the joints and we’ll get on with it. The job generally takes a few hours for a few frames, or a day or more for a whole house. In Burgess Hill, parking is rarely complicated, though it helps to know about driveways or restrictions, and let us know if the work is upstairs, in a flat or up high outside.
- First, we confirm safe access to each frame.
- All the failed sealant is cut away.
- The surfaces are cleaned and left dry.
- Deep voids are backed, then the sealant is gunned in.
- We tool the joint so water runs off, then clear up.
Getting ready for the visit
- Plan for the work area to be out of bounds to pets and children
- Mention any sign-in or site rules at work premises
- Let us know if you’ve seen damp or leaks
How to get a quote
Getting a quote is simple: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand.
Read more
Common problems we fix in Burgess Hill
Joint shape matters as much as the product. A skim of sealant over a wide gap soon tears, while a joint packed solid cannot stretch. Backing rod sets the right depth.
Most people get in touch when they notice something like this:
- Mastic that has split away from the wall
- Leaking joints at the ends of sills
- Rushed sealant from a window installation
- Draughty joints inside around the window
Schools such as St Wilfrid's Catholic Primary School are buildings too, and the mastic around its windows and doors needs looking after like any other building’s.
Comparing quotes
- Which sealant they’ll use, and why
- What happens if the job turns out different
- What the cure time is
- Who turns up on the day
When it is not the sealant
We will not take on work that won’t last, so here’s what sealant can’t put right:
- Penetrating damp from a failed cavity tray or render
- Rotten timber, which needs a joiner first
- Faulty window hardware
If you’re not sure, just phone 0345 464 0079 or drop us an email and we will give you a straight answer.
Joints and surfaces we work on
- Window sills
- Composite doors
- uPVC windows
- Aluminium frames
- Patio & French doors
- Timber windows & doors
What happens if it’s left?
A cracked joint around a frame lets rain into the wall. Over time that can mean damp patches, damaged plaster and rotting timber. Resealing now is a small job by comparison. In a family home in Burgess Hill, a failed seal around a bath or a frame lets water into places you cannot see, such as under the floor, behind a panel or into a wall. Left alone, that means rot, damp and a bigger repair.
The cost reflects the work involved, not a rough estimate. That is why we ask a few questions first and give you a clear quote before any work starts.
Why choose Mr Mastic in Burgess Hill
- We never seal over old sealant
- An ARBOMaster approved applicator
- Sanitary silicone with an anti-fungal additive in wet areas
- A choice of colours where the product allows
Take a look at what affects the cost or our reviews.