West Sussex · England
Mackerel's Common New Build Mastic
Professional new build mastic in and around Mackerel's Common, with every bit of old sealant taken out first and a 12-month guarantee.
- Cracked caulk along new skirting
- Untidy sealant flagged on a snagging list
- Second-fix sealing on new plots
Why deal with it now?
A hairline gap at a skirting can wait, but a leaking seal cannot. If you are unsure which you have, ring 0345 464 0079 or drop us an email with pictures and we will tell you. In a small place like Mackerel's Common, homes can be exposed to wind and rain, which finds any gap, and older walls, once damp, take a long time to dry.
Leaving a failed joint usually makes the job bigger, not smaller. If you are unsure, call 0345 464 0079 or send us an email and we’ll give you an honest view and a quote.
Why us?
- We never seal over old sealant
- White, clear, grey or another colour, product permitting
- Colour picked to suit the job
- More than 20 years in sealant work
Take a look at our cost guide or what customers say.
How we handle new build mastic in Mackerel's Common
Our new-build work comes in two parts: plot mastic for developers, and putting right failed sealant for people who’ve bought a new home. Both get the same care over preparation, because that’s what rushed new-build sealant generally lacks. We work on skirting & floors, plot handovers and kitchens, and the jobs we see most are kitchen sealant that has pulled off the wall and sealant that never bonded to the surface.
Older homes in small places like Mackerel's Common often have timber floors that move with the seasons, so skirting and threshold joints need a flexible sealant rather than a rigid filler.
You are covered for a year from the day we finish. If there’s a problem with it, please call 0345 464 0079 or send us an email.

- Where
- Mackerel's Common (RH14)
- Wider area
- West Sussex
- Cover
- One year on every job
- Quote
- A clear quote up front
- Phone
- 0345 464 0079
- Updated
- 26 October 2026
FAQs for Mackerel's Common
Can you help a landlord with a rental near Billingshurst station?
Yes, rental work is part of what we do. You can ring 0345 464 0079 or send us an email with the address and a few details, and we will give you a fixed price before any work starts.
Can you do new build mastic in Mackerel's Common?
Yes, Mackerel's Common is within the area we cover. We work across London and the South East. Just ring 0345 464 0079 or send us an email with a few details of the job.
What colour sealant will you use?
Most bathroom joints are white or clear, but sealant comes in other colours too. We choose one to suit the room and agree it with you.
Who should fix failed sealant in a new build?
Start with your builder while their snagging or warranty period runs. After that, or if their repair keeps failing, we can do it with our one-year guarantee.
Where is Mr Mastic based?
We’re a Crawley-based firm, with over 20 years’ experience. Our area covers South East England, London and Scotland.
Are you insured?
Yes. Mr Mastic is fully insured.
Which products do you use?
Each joint gets the product that suits it. Where it moves, gets wet or faces the weather makes a difference, and we’ll explain our choice.
Do you work through snagging lists?
Yes. Snagging lists are a common starting point for us. We agree the sealant items with you before any work starts.
What affects the quote in Mackerel's Common
Some jobs are bigger than they look, and some smaller. The main factors:
- Which sealant suits the joint
- Any mould that needs treating
- Access and height
- The size of the job
There are no prices on our website, because the cost depends so much on the job itself. For a quick quote, please call 0345 464 0079 or email us.
Asking for a quote
When you call or email, it’s useful to know:
- Access, such as stairs, a lift or height
- A few pictures by email, if you can
- If it’s domestic, commercial or a hotel
- Where the property is
The more we know about the job, the more useful the quote. Let us know the location, the problem and roughly how many joints, and email photos if that is easy.
How the visit works
Our applicators work methodically: protect, prepare, seal, tidy. For most jobs that takes a few hours for most snagging lists, longer for a run of plots and we leave things clean and tidy. For a village or hamlet like Mackerel's Common, the journey is planned in advance: let us know about lanes, gates and parking. We bring what the job needs, so it can be finished in one trip where possible.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- Joints are dried and primed where the product calls for it.
- Baths are filled with water, then the new sealant is applied.
- We check every joint and leave you with the cure times.
How to prepare
- Mention any parking rules near the property
- Keep children and pets away from the work area
- Tell us about any water getting in
How to get a quote
For new build mastic in Mackerel's Common, ring 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and we will agree the price before any work begins.
Related advice
Aftercare tips
Aftercare is simple:
- Ventilate bathrooms well, especially in the first year
- Avoid scourers and strong chemicals on sealant
- Watch for new gaps as the house dries out
- Wait for the cure time before using a resealed shower
Keep photos of the joints and any snagging correspondence with your builder. It helps if anything else comes up during the warranty period.
Leave a failed new-build seal and water can reach the floor and the ceiling below. Early resealing keeps the job small.
Also near Mackerel's Common
What else we do in Mackerel's Common
Work for landlords, hotels and businesses
From a single let to a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
A neglected joint can let water reach the structure, which is a bigger problem in a rented property. Resealing at the right time is simple maintenance that we can handle for you.
What new build mastic looks like in Mackerel's Common
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.
Around Mackerel's Common, as everywhere, new build mastic is only as good as the preparation behind it. For new homes near Billingshurst station, it’s worth checking the sealant early, while snags are still fresh.
Mackerel's Common is about 10 miles west of Horsham, in West Sussex. We provide new build mastic to homes and businesses in Mackerel's Common, as part of our work across West Sussex. Across West Sussex, we cover 371 places, Mackerel's Common among them. For nearby work, see our Crawley page.
Work in RH14 works the same way as everywhere else we cover. We also cover the places around Mackerel's Common: Kirdford (1 mile south), Plaistow (2 miles north), Ifold (2 miles north), Balls Cross (2 miles south-west) and Wisborough Green (2 miles south-east). Further out, we also cover Horsham (10 miles east), Broadfield (15 miles east), Storrington (9 miles south-east), Billingshurst (5 miles east), Bewbush (15 miles east) and Angmering (15 miles south).
Local landmarks in Mackerel's Common
Mackerel's Common’s nearest station is Billingshurst station, roughly 4.8 miles south-east of the centre. Open spaces near Mackerel's Common include The Mens and Shillinglee Lake.
What we cannot put right
Before you book, it’s worth knowing the limits:
- A tray or bath that is not properly supported, until it’s fixed
- Cracking that points to a structural problem
- Deciding who is responsible under a builder’s warranty
If in doubt, call 0345 464 0079 or drop us an email and we’ll say what we think.
Surfaces we seal
- Bathrooms & en suites
- Skirting & floors
- Plot handovers
- Windows & doors
- Show homes
- Kitchens
What the job involves on each surface
Windows and doors
The gap between a new frame and its plaster reveal often opens up. We remove cracked sealant and apply a flexible one that suits the frame.
Plot handovers
Plot mastic is carried out to the developer’s schedule. Joints are prepared properly before sealing.
