West Sussex · England
New Build Mastic in Pyecombe
Specialist new build mastic for Pyecombe: the right sealant, proper preparation and a neat finish. Call for a quick quote.
- Cracks appearing as a new home settles
- Untidy sealant flagged on a snagging list
- Plot mastic for developers ahead of handover
New build mastic for homes and businesses in Pyecombe
If your new home has a leaking shower seal, open skirting joints or untidy sealant, we can help. While the builder’s snagging or warranty period runs, report it to them first, and if it isn’t put right, get in touch with us. We work on skirting & floors, windows & doors and bathrooms & en suites, and common reasons people get in touch are skirting joints opening in the first winter and shower seals failing in the first year or two.
Older homes in small places like Pyecombe often have timber floors that move with the seasons, which is why skirting and threshold joints need a flexible sealant, not filler.
All of our work is guaranteed for twelve months, and the guarantee is the same wherever you are.
- Place
- Pyecombe (BN45)
- Region
- West Sussex
- Cover
- 12 months on all our work
- Price
- A clear quote up front
- Phone
- 0345 464 0079
- Page updated
- 26 October 2026

Common problems we fix in Pyecombe
The wrong product is sometimes used in the wrong place: caulk where water collects, or a rigid product on a moving joint. Both fail early.
It’s worth asking for a quote if you see:
- Shower seals failing in the first year or two
- Sealant applied over dusty or wet surfaces
- Skirting joints opening in the first winter
- Worktop and upstand sealant coming away
In and around Pyecombe, as anywhere, good new build mastic starts with a clean, dry, properly prepared joint.
Questions to ask before you book
- How the colour is chosen
- Whether the sealant suits the joint
- The length of the guarantee
- How much experience the applicator has
How to look after the new joints
After the cure time, these simple habits help:
- Resist patching a failed seal with a tube from the DIY shop
- Photograph failed sealant before it’s redone
- Put sealant faults on your snagging list early
- Ventilate bathrooms well, especially in the first year
Wipe the sealant with warm soapy water. Keep scourers and harsh chemicals off it as they wear the bead.
A seal that splits early is often a sign of movement. Getting it resealed properly, and any movement checked, stops it recurring.
What we can’t put right
New sealant cannot fix everything, and we’d rather say so up front. It will not solve:
- Your warranty claim itself, which is between you and the builder
- Structural cracks in walls or ceilings
- Broken tiles or a split tray
If you’re not sure, just ring 0345 464 0079 or email us and we will give you a straight answer before booking.
Joints and surfaces we work on
- Kitchens
- Plot handovers
- Skirting & floors
- Windows & doors
- Show homes
- Bathrooms & en suites
Also near Pyecombe
What else we do in Pyecombe
New build mastic around Pyecombe
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.
For new homes near Hassocks station, it’s worth checking the sealant early, while snags are still fresh.
Pyecombe is about 4 miles south of Burgess Hill, in West Sussex. From the centre of Pyecombe to the outskirts, we cover new build mastic for every kind of property. Pyecombe is one of 371 towns and villages in West Sussex we cover for new build mastic.
We cover every part of the BN45 postcode area for new build mastic and the streets around it. Local streets include London Road, School Lane and Church Hill. Other places close to Pyecombe include Saddlescombe (1 mile south-west), Waterhall (2 miles south), Patcham (3 miles south), Westdene (3 miles south) and Hollingbury (3 miles south-east). Within a short drive, we also cover Crawley (15 miles north), Horsham (13 miles north-west), Worthing (12 miles south-west), Haywards Heath (7 miles north-east), Burgess Hill (4 miles north) and Shoreham-by-Sea (6 miles south-west).
Landmarks near Pyecombe
Pyecombe’s nearest station is Hassocks station, roughly 1.9 miles north-east. A little further out are Clayton Castle (1 mile north-east) and The Budding Foundation Museum of Gardening (1.7 miles north). For a walk, there’s Wolstonbury Hill and Ladies Mile.
Why act early in Pyecombe
Water getting past a failed seal in a new build reaches walls and floors that are still settling. Resealing promptly protects the new finishes around it. Where a wall is exposed, as many are in small places like Pyecombe, wind-driven rain gets into any failed joint, and damp in older walls is slow to dry out.
Rather than a set price list, we look at what your job involves: the amount of work, the old material and the access. You will know the price before we begin.
Why choose Mr Mastic in Pyecombe
- We are fully insured
- Colour picked to suit the job
- White, clear, grey or coloured to suit, where the product allows
- 4.9 on Google from 180+ five-star reviews
Take a look at how sealant jobs are priced or our reviews.
What happens on the day
A visit follows a simple pattern: we look at the joints together, protect the area around them, do the work and tidy away. It usually takes a few hours in a single home. Somewhere as small as Pyecombe, access is often the only tricky part. For outside work, also let us know about exposed walls and any outbuildings involved.
- We look at why each joint failed, including any movement.
- Old sealant is cut out and the joints cleaned.
- 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.
How to prepare
- Let us know about earlier repairs to the joints
- For business premises, tell us about site rules or sign-in
- Plan for the work area to be out of bounds to pets and children
Get a quote
Asking for a quote is easy: let us know the job and the location and its rough size. A few pictures by email make the job easier to understand, and we will take it from there.
Read more
For landlords and businesses
Whether it’s one flat or a portfolio, you get the same standard of work: the old material taken out, careful preparation and a 12-month guarantee.
Mouldy or split sealant often shows up at the end of a tenancy, and it’s easy to sort out between tenants. Several properties can go on one quote.
How we quote for new build mastic
Jobs vary more than people expect. What affects the quote:
- Mould in or behind the old joints
- The old material and how stubborn it is
- How much there is to do
- The number of rooms or windows
A failed joint rarely gets cheaper to fix by waiting. If you’re unsure, call 0345 464 0079 or drop us an email for an honest opinion and a quote.
What we need to know
Photos help, but a description is a good start. Try to tell us:
- Whether it’s a home or a business
- What the problem is, such as mould, gaps, leaks or cracking
- A few pictures by email, if you can
- The address or postcode of the job
If you’re in Pyecombe and need new build mastic, call 0345 464 0079 or drop us an email. A short description of the job and where it is helps us quote, and you will get a clear quote before we start.
Common questions in Pyecombe
I let a flat near Hassocks station. Can you help?
Yes, we work for landlords and agents. You can ring 0345 464 0079 or drop us an email with the address and a few details, and we will give you a fixed price before work begins.
Do you cover Pyecombe for new build mastic?
Yes. We work across London and the South East, and Pyecombe is part of that. Just ring 0345 464 0079 or send us an email with a few details of the job.
When is the best time to reseal in a new build?
For failed seals that let water through, the best time is now. Cosmetic gaps can wait until the first year or two of movement has passed.
Will the old sealant be removed?
Yes. All of the old material is cut out and the joint cleaned before applying anything new.
Are you an approved applicator?
Yes. We are approved under the ARBOMaster scheme, the approved applicator scheme for Arbo sealants.
Can I add another job to the visit?
Yes. Tell us about everything you’d like done and you’ll get one quote.
Do you work for developers?
Yes. We work through plots to your schedule. Tell us the plots and the joints involved and we will quote.
When is the sealant fully cured?
That depends on the sealant used, so please follow the time we give you when we finish.
