West Sussex · England
Window Mastic in Storrington
Mastic around window and door frames, sills and patio doors in Storrington, with a one-year guarantee on every job. Ask us for a quote.
- Cracked internal joints between frame and plaster
- Old mastic that has gone black or come away
- Sealant in the wrong colour for the frame
How we handle window mastic in Storrington
Some gaps around frames are far deeper than they look. Filling it with sealant alone leaves a joint that cannot move properly, so deep gaps get backing rod first. The sealant then grips the two sides it should. We’re often asked to deal with sealant in the wrong colour for the frame and gaps between the frame and the inside reveal, across patio & French doors, composite doors and aluminium frames.
In smaller places like Storrington, homes range from older cottages to newer houses, with windows to match: timber, uPVC and aluminium. The right sealant depends on the frame and on what it sits in.
There’s a 12-month guarantee on every job.
- Location
- Storrington (RH20)
- Wider area
- West Sussex
- Cover
- One year on every job
- Price
- A clear quote up front
- Telephone
- 0345 464 0079
- Updated
- 26 October 2026

Storrington questions
Do you cover smaller places like Storrington?
Yes, smaller places are covered as well as towns. We work across London and the South East. Let us know about access, parking and anything unusual about getting there when you book.
Can you do window mastic in Storrington?
Yes. Our work covers London and the South East, and Storrington is part of that. You can call 0345 464 0079 or drop us an email and tell us what needs doing.
Can you do the inside joint as well?
Yes. Inside, the joint between frame and plaster is sealed neatly, using a paintable sealant if you want to decorate.
Will it make a mess?
No. The area is protected while we work and cleaned up afterwards.
When is the sealant fully cured?
It depends on the product. We tell you how long to leave it before we go.
Will there be a smell?
Sometimes, a little. Any smell clears as the sealant cures, and ventilation helps.
Do you work for letting agents?
Yes, we do. We work in homes, commercial premises and hotels.
Can tenants book the work?
We can work for tenants, landlords or agents. Just make sure your landlord agrees.
Nearby places to Storrington
What else we do in Storrington
How we quote for window mastic
Every job gets its own quote. These are the things that affect it:
- How many areas need sealing
- Mould in or behind the old joints
- How easy the joints are to reach
- Any working-time requirements on site
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.
Helping us quote
A few details help us give you an accurate quote. When you get in contact, it helps to mention:
- Pictures of the joints, sent by email
- Where the property is
- Access, such as stairs, a lift or height
- The rough size of the job
Every job is quoted individually. Just call 0345 464 0079 or send us an email with the details, and pictures are welcome.
Landlords, agents and businesses in Storrington
Letting agents often deal with us directly. Send the address, what’s needed and the access arrangements and we will give you a quote.
Landlords and letting agents in Storrington can book us as well as homeowners. Sealant work between tenants keeps a property looking cared for.
What sealant work can’t fix
Some problems need a builder, plumber or other trade rather than us:
- Damp problems in the wall away from the window
- A failed sealed unit that has misted up
- Soft or decayed wood in the frame
Not sure which it is? You can call 0345 464 0079 or drop us an email and we’ll tell you honestly.
Joints and surfaces we work on
- Window sills
- uPVC windows
- Patio & French doors
- Aluminium frames
- Composite doors
- Timber windows & doors
How it works
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 handful of frames, longer for a whole house. For a job in Storrington, we agree the time, the access and parking before the day. If the work is outside, the weather plays a part, as sealant needs a dry surface.
- Each frame is looked over and we agree which ones need resealing.
- The old mastic is cut out and scraped back to clean surfaces.
- Deep gaps get closed-cell backing rod to set the depth.
- A flexible exterior sealant is applied in a colour to suit the frame.
- We tool each bead neatly and check every joint is closed.
Before we arrive
- Keep pets and children clear of the area while we work
- Let us know about stairs, lifts or work at height
- Move anything stored near the joints
How to get a quote
There’s no standard price list, as no two jobs are quite the same. Instead, we send you a clear quote for your job. To arrange one, call 0345 464 0079 or email us.
Related advice
What window mastic looks like in Storrington
Rainfall in the South East is lower than in much of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day. With historic houses such as Parham House (about 2 miles west) nearby, there’s older building stock in the area around Storrington as well as newer homes. In older buildings, older frames set in brick or stone need a sealant that suits them, and sometimes that’s traditional sand mastic.
If you let a flat or house near Pulborough station, renewing tired window mastic between tenants heads off draught and damp complaints. In the older streets around The Parish Church of St Mary the Virgin, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint. If you look after a building such as Storrington Primary School, larger buildings have plenty of frames, and the mastic around each one ages.
Storrington is about 7 miles north of Worthing, in West Sussex. For window mastic in and around Storrington, it’s easy to get a quote: please ring 0345 464 0079 or drop us an email. We are based in Crawley and cover West Sussex, Storrington included. Across West Sussex, we cover 371 places, and Storrington is one of them. You can also see our page for Brighton, roughly 15 miles from Storrington.
Every address in RH20 is within our area for window mastic. You’ll find streets such as Windmill Copse, Wantley Lane and Field End, and we cover them all. With the B2139 close by, Storrington is simple for us to get to for window mastic. If you are just outside Storrington, we cover Cootham (1 mile west), Sullington (1 mile south-east), Heath Common (1 mile east), Abingworth (1 mile north-east) and West Chiltington Common (2 miles north). Within a short drive, we also cover Horsham (11 miles north-east), Worthing (7 miles south), Bognor Regis (14 miles south-west), Chichester (15 miles west), Burgess Hill (14 miles east) and Littlehampton (8 miles south-west).
Near you in Storrington
Typical jobs here are in homes near Parham Park, Rydon Community College and The Moon pub and the streets around them. The closest station to Storrington is Pulborough station, roughly 3.9 miles north-west. Well-known places in the area include The Storrington And District Museum (within half a mile south) and Amberley Castle (4.1 miles west). Not far away are Chanctonbury Hill and Amberley Wildbrooks RSPB Reserve.
Different surfaces, different methods
Composite doors
Composite doors are normally hung in an uPVC-type frame, so its perimeter joint is sealed much like a window. We match the colour to the frame.
Timber windows & doors
Soft or rotten wood can’t be sealed successfully. If we find rot, we’ll tell you before going ahead, as that’s a job for a joiner.
Can I do it myself?
If you do try it yourself, take your time over the preparation: remove every trace of old sealant, clean and dry the joint, and follow the product’s cure time. If it fails, we can still redo it.
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.
Why it’s worth doing now in Storrington
The work is quick compared with the damage it prevents: it takes a morning for a couple of windows and a door. Leave it until water is coming in and you may need plastering and decorating as well. Homes in smaller places like Storrington can face more weather, and failed outside joints let damp into walls. Inside, a split seal lets water into floors and panels just as it would anywhere.
Commercial jobs are quoted on the same basis as homes: the amount of work, how we reach it and what it needs, plus any working-time requirements on site. Call for a quick quote and we’ll explain what it covers.
Why choose Mr Mastic in Storrington
- Every job guaranteed for a year
- White, clear, grey or another colour, product permitting
- Any old sealant cut out fully, not covered over
- Experience in homes, commercial sites and hotels
