West Sussex · England
Window Mastic in Aldwick
Mastic around window and door frames, sills and patio doors for homes and businesses in Aldwick and across West Sussex. ARBOMaster approved applicators, fully insured, with a 12-month guarantee.
- Gaps between the frame and the inside reveal
- Untidy mastic left by window fitters
- Old mastic that has gone black or come away
How we handle window mastic in Aldwick
A cold draught around a closed window often comes from the frame edge. A new joint stops the air getting through. Where the air is getting in through the window itself, we’ll say so. If you have cracked internal joints between frame and plaster and rushed sealant from a window installation, we can put it right, on uPVC windows, composite doors and aluminium frames alike.
Houses in smaller places like Aldwick can stand more in the open than those in a built-up town, so exposed windows and doors face the weather head on. The mastic around frames on those walls tends to age faster.
Big or small, you get the same 12-month guarantee.
- Location
- Aldwick (PO21)
- Wider area
- West Sussex
- Guarantee
- 12 months on all our work
- Quote
- A clear quote up front
- Call
- 0345 464 0079
- Last updated
- 26 October 2026
When to call us in Aldwick
Older frames were often sealed with products that set hard. Once it has hardened, the frame’s movement tears it from the wall, leaving a hairline gap down one side.
The most common problems we see are:
- Cracked sealant at the sill ends
- Old mastic that has gone black or come away
- Cracked or shrunken mastic around the frame
- White mastic on grey or black frames
Letting a property close to Bognor Regis station? Then renewing tired window mastic between tenants heads off draught and damp complaints.
Comparing quotes
- Which colour the sealant will be
- How long the guarantee is
- Who does the work, and how experienced they are
- Whether they’re fully insured
Work for landlords, hotels and businesses
Whether it’s one flat or a portfolio, the work is the same standard: the old material taken out, careful preparation and a 12-month guarantee.
If you manage several properties in or around Aldwick, several properties can be quoted together. Just tell us the addresses and what each one needs.
Aldwick: your questions answered
Do you work for landlords with property near Bognor Regis station?
Yes, landlords and agents are among the people we work for. Just ring 0345 464 0079 or drop us an email with the address and what needs doing, and we will send you a clear quote.
Do you cover smaller places like Aldwick?
Yes, Aldwick is covered. Our work covers London and the South East, and smaller places are part of that. The journey is planned ahead, so it helps to know about access.
What do you put in the joint?
It depends on the joint: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. We use products from Arbo and Everbuild.
Can I paint over the new sealant?
Most silicone can’t be painted. Let us know beforehand, and we will use a paintable product where it suits.
Do I need to be at home?
It depends on the job. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Can you reach windows above the ground floor?
Generally, yes. We plan safe access before the job, so mention the height and anything in the way.
Can I do it myself?
Sometimes. The key is preparation: remove all the old material and work on a clean, dry joint. We can always put it right if it fails.
Are you ARBOMaster approved?
Yes. Mr Mastic is an ARBOMaster approved applicator and we are fully insured too.
What window mastic looks like in Aldwick
Aldwick is within about 1 mile of the coast, and homes near the sea take more wind-driven rain, with salt in the air closer to the shore. Both are hard on the mastic around window and door frames, which can dry out and crack sooner where a building faces the weather. London and the South East are among the drier parts of the UK, though outdoor sealant still has to go onto a dry joint, so the forecast decides the day.
If you look after a building such as Nyewood CofE Junior School, larger buildings have plenty of frames, and the mastic around each one ages. In the older streets around St Richard’s Church, replacement windows fitted into old openings often leave uneven gaps that need backing and a flexible joint.
Aldwick is about 1 mile south-west of Bognor Regis, in West Sussex. For window mastic in and around Aldwick, please ring 0345 464 0079 or email us for a quick quote. We are based in Crawley and cover West Sussex, Aldwick included. Aldwick is one of 371 towns and villages in West Sussex we cover for window mastic. Our Portsmouth page covers work nearby, about 16 miles away.
All of PO21 is covered for window mastic. Whether your property is on Fish Lane, Dark Lane and West Avenue or anywhere close by, we can help. Nearby, we also carry out window mastic in Nyetimber (1 mile west), Pagham (2 miles south-west), South Mundham (2 miles north-west), Fisher (3 miles north-west) and Sidlesham (3 miles west). Further out, we also cover Worthing (14 miles east), Chichester (5 miles north-west), Selsey (5 miles south-west), Littlehampton (8 miles east), Emsworth (11 miles north-west) and Rustington (9 miles east).
Local landmarks in Aldwick
Typical jobs here are in homes near West Park, The Regis School and The Regis School and the streets around them. For rail, the closest station is Bognor Regis station, roughly 1.4 miles east. Well-known places in the area include Bognor Regis War Memorial Hospital (1.5 miles north-east) and Bognor Regis Museum (1.2 miles east).
Nearby places to Aldwick
Other services in Aldwick
Aftercare tips
Good habits help new joints last longer. Our tips:
- Do not use solvent cleaners on the joint
- Do not aim a pressure washer at the joints
- Keep drainage slots and sill grooves clear
- Ventilate rooms so frames do not stay wet inside
Silicone can’t usually be painted, so mention any painting plans before work begins. We can use a paintable sealant where that matters.
Wet, windy weather is when failed mastic shows itself, but resealing works best in dry conditions. Sorting cracked mastic early means the joint is sound before the bad weather.
Can I do it myself?
Overfilling a joint is a classic DIY mistake. A thick, smeared bead looks untidy and does not move well, and getting the depth right matters as much as the look.
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.
How we quote for window mastic
There’s no set price list, because jobs vary so much. The quote depends on:
- Working hours on commercial sites
- Mould in or behind the old joints
- The size of the job
- The product the joint needs
No two jobs are quite the same, so each one gets its own quote. Size, access and the product the joint needs all make a difference.
What we need to know
When you call or email, these details help:
- Whether it’s a home or a business
- Pictures of the joints, sent by email
- How we’d reach the joints
- Roughly how big the job is
For window mastic in Aldwick, ring 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and we’ll agree the price before any work begins.
Why act early in Aldwick
A quick bead over the top of old mastic looks like an easy fix, but it won’t grip old, dirty sealant. It soon lifts and the leak carries on behind it. The old mastic has to come out. In a smaller place like Aldwick, wherever a wall is exposed, a failed outside joint is a real source of damp. Inside, a split seal lets water into floors and panels just as it would anywhere.
A failed joint rarely gets cheaper to fix by waiting, because water and mould keep working on it. If you’re not sure whether it needs doing, phone 0345 464 0079 or send us an email and we will give you an honest view and a quote.
Why book with us
- Domestic, commercial and hotel work
- Old sealant always removed completely
- Over 20 years’ experience
- Full insurance on every job
See what affects the cost and our reviews.
How it works
There is not much for you to do on the day. Show us the job and we will take it from there. The job generally takes anything from an hour or two to a full day, depending on how many frames there are, including the tidy-up. Parking around Aldwick is generally easier than in a town centre, but mention any lanes, gates or long drives. For outside work, side access and the height of the joints help us plan.
- We start by checking each window and door with you.
- The old mastic is cut out and the surfaces cleaned back.
- Deep gaps are filled with backing rod to set the depth.
- A flexible, weatherproof sealant is applied in a colour to suit the frame.
- Finally we tidy up and check each joint.
Before we arrive
- Keep children and pets away from the work area
- Tell us if parking is tricky
- Let us know about earlier repairs to the joints
How to get a quote
Asking for a quote is easy: let us know the job and the location, and roughly how big it is. Photos by email help us understand the job, and we will come back to you with a quote.