West Sussex · England
New Build Mastic in Aldwick
Problem with your new-build sealant joints in Aldwick? We cut out the old, prepare the joints and apply the right sealant, and the work is guaranteed for a year.
- Cracked caulk along new skirting
- Beads laid onto grit and dust from the build
- Kitchen sealant that has pulled off the wall
New build mastic in Aldwick, done properly
A new build should have a neat, sound bead at every joint. When the finish is smeared, patchy or already cracking, it’s worth putting right early, before water reaches anything behind it. Common call-outs are for gaps opening as the house dries out and settles and kitchen sealant that has pulled off the wall, across show homes, bathrooms & en suites and skirting & floors.
In and around Aldwick, floors range from older timber boards to tiles and newer finishes, from timber that moves with the seasons to tiles laid on concrete. The sealant at skirtings and thresholds has to suit the floor it meets.
You’re covered for a year from the day we finish. If anything isn’t right with it, ring 0345 464 0079 or send us an email.

- Location
- Aldwick (PO21)
- Wider area
- West Sussex
- Cover
- One year on every job
- Quotes
- Quoted before any work starts
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
For landlords and businesses
Hotels need rooms back in use, so we plan the work room by room around your bookings where we can. Hotel work is part of what we do, alongside homes and businesses.
We also work for businesses, from offices to washrooms and kitchens. On commercial sites, working times can be discussed when we quote.
Nearby places to Aldwick
What else we do in Aldwick
Should I try it myself first?
A DIY attempt does not rule out a professional job. We remove it and do the joint properly, so tell us about it when you ask for a quote.
The difference is mostly in the preparation and the product. We take joints back to clean, dry surfaces, and the sealant is chosen for how the joint moves and where it is, and the work is guaranteed for a year.
Why deal with it now?
Small cosmetic gaps can wait for the house to settle, but a leaking seal can’t. If you are unsure which you have, call 0345 464 0079 or drop us an email with photos and we will give you a straight answer. In a smaller place like Aldwick, 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.
What you pay reflects the work, not guesswork. That is why we ask about the job first.
Why choose Mr Mastic in Aldwick
- We never seal over old sealant
- 4.9 on Google from 180+ five-star reviews
- Approved under the ARBOMaster scheme
- A 12-month guarantee on all work
Take a look at how sealant jobs are priced and customer reviews.
How we quote for new build mastic
Call for a quick quote. The main things that affect it are:
- Working hours on commercial sites
- Whether the work is at height
- The number of rooms or windows
- The number and length of the joints
The cost depends on the amount of work, how hard the old material is to remove and access to the work. You will have a clear quote before any work starts.
Asking for a quote
Before you ask for a quote, have a think about:
- If someone has resealed it before
- How we’d reach the joints
- Where the job is, and your postcode
- What’s wrong with the joints now
If you are in Aldwick and need new build mastic, call 0345 464 0079 or send us an email. A short description of the job and where it is helps us quote, and you’ll get a clear quote before we start.
New build mastic around Aldwick
Aldwick is close to the coast. New homes near the sea put their outside mastic to work from day one, so any gaps are best picked up early. The South East is one of the drier parts of the UK, but outside sealant still needs a dry, clean surface, so outdoor work is planned around the forecast.
In and around Aldwick, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint. For new homes near Bognor Regis station, it’s worth checking the sealant early, while snags are still fresh.
Aldwick is about 1 mile south-west of Bognor Regis, in West Sussex. If you need new build mastic in Aldwick, please call 0345 464 0079 or drop us an email for a quick quote. We’re based in Crawley and cover West Sussex, Aldwick included. Aldwick is one of 371 towns and villages in West Sussex we cover. There’s also a page for Portsmouth, about 16 miles away.
We cover every part of PO21 for new build mastic and the streets around it. Streets in the area include Fish Lane, Dark Lane and West Avenue. Neighbouring places we cover for new build mastic include 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). We also work in nearby towns such as 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).
Near you in Aldwick
In Aldwick, that means homes and buildings near West Park, The Regis School and The Regis School and the streets around them. The closest station to Aldwick is Bognor Regis station, roughly 1.4 miles east. A little further out are Bognor Regis War Memorial Hospital (1.5 miles north-east) and Bognor Regis Museum (1.2 miles east).
Questions from Aldwick
Do you cover smaller places like Aldwick?
Yes, Aldwick is covered. We work across London and the South East, from towns to the smallest places. Longer journeys are simply planned in advance.
Is Aldwick in your area for new build mastic?
Yes, Aldwick is within the area we cover. We work across London and the South East. Just phone 0345 464 0079 or drop us an email with a few details of the job.
How long should I leave it?
It depends on the product and the conditions. Before we leave, we’ll tell you the cure time.
Can I add another job to the visit?
Yes, and it often makes sense. Combining jobs makes good use of the visit.
Which products do you use?
The product depends on the job: sanitary silicone where it gets wet, and sealants suited to movement or weather elsewhere. Brands we use include Arbo and Everbuild.
Is there a guarantee?
Yes, for a year. If anything is not right with the work within the year, let us know and we will sort it.
Should I try DIY first?
You can, for simple jobs. Preparation is everything: all the old sealant out, and a clean, dry joint. We can always put it right if it fails.
Does someone need to be in?
That depends on where the joints are. Inside work needs someone to give us access, while outside work can sometimes be arranged differently.
Surface by surface
Plot handovers
Good preparation at handover saves snagging later. We clean out building dust before sealing and prime where the product needs it.
Windows and doors
External mastic around new windows and doors is sometimes rushed or missed. We reseal it with a weatherproof, flexible sealant.
The process
The work is kept neat and contained to the joints we are treating. The job normally takes a few hours in a single home, and we tell you how long to leave it before we go. For a job in Aldwick, we agree the time, the access and parking before the day. Outdoor jobs depend on a dry day, since sealant needs a dry surface.
- We look at why each joint failed, including any movement.
- We remove the failed sealant and clean the joints.
- We make sure the joints are dry and prime them if needed.
- Baths are filled with water, then the new sealant is applied.
- The finished joints are checked and the cure times given.
Preparing for the visit
- Tell us about any water getting in
- For business premises, tell us about site rules or sign-in
- Keep children and pets away from the work area
How to get a quote
Quotes start with a quick conversation. Tell us what’s wrong, where it is and how much there is, and we will talk you through what we’d do. Whenever you are ready, phone 0345 464 0079 or send us an email.
Read more
Keeping the joints in good condition
Simple care keeps the joints in good condition. We recommend:
- Use the extractor fan every time you shower
- Keep pictures and emails about snagging items
- Act quickly if a seal starts to leak
- Keep water off fresh sealant until it has cured
Leave the sealant for the cure time we give you before showering or bathing. Silicone is generally left for about a day.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Early resealing keeps the job small.
