
Sealant specialists in Newtimber
Sealant work for offices, shops, hotels and other commercial buildings throughout Newtimber and nearby, carried out by CSCS-carded applicators. CHAS accredited and fully insured.
- External beads that have gone brittle and cracked
- Water staining near frames, panels or ceilings
- Black mould through washroom sealant that won’t clean off
Need commercial sealant contractors in Newtimber?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
When to call us in Newtimber
Every sealant joint is a maintenance item. Its life comes down to movement, UV and weather, how it’s cleaned, how much traffic passes it and what was used in the first place. On a busy commercial site several of those pile up at once, which is why regular inspection pays.
Common reasons buildings call us in:
- Water staining near frames, panels or ceilings
- Weathered facade sealant that no longer flexes
- Black mould through washroom sealant that won’t clean off
- Frame mastic that has hardened and come away from the wall
Shops and cafés around stations like Hassocks station, 2.4 miles north-east of Newtimber, trade from early, so work is timed around them.
What to look for in a quote
- The terms of the workmanship guarantee
- Are they CHAS accredited or on Constructionline?
- How they handle RAMS and site documents
- How joint depth will be controlled
Commercial sealant contractors for commercial buildings in Newtimber
Mastic Doctor has been sealing joints for businesses and contractors since 2005: we are CHAS accredited and a Constructionline member, our applicators hold CSCS cards, and we carry five million pounds of public liability insurance. Let us know which site documents you need and they’ll be confirmed with the quote. If you have damp patches where an external joint has failed and untidy joints in a reception, shop floor or lobby, we can help, on washrooms and tea points, window and door perimeters and external facade joints alike. A single leaking joint is often how a building in Newtimber first comes to us: we look at the rest while we’re there and tell you what we find.
We price commercial jobs in Newtimber from photographs, drawings or a site visit, and the scope is set out in writing.
In and around smaller places such as Newtimber, the commercial buildings we are asked about are often pubs, shops, village halls and barns converted to offices. Kitchens, toilets and window frames in all of them need resealing sooner or later.
We sign every job off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.
- Where
- Newtimber (BN6)
- Region
- West Sussex
- Cover
- A 12-month guarantee
- Quotes
- A fixed quote before we start
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026

Diagnose, treat, sign off
The first thing on site is a walk round with your contact, to confirm the scope, the order of work and any areas we must keep clear. Then we strip out anything that has failed, prepare every joint and seal it. For work around Newtimber, we aim to finish in one visit, so we ask for photographs and rough sizes first. That way the right products come on the day.
- We begin with whatever information you have, whether that’s photos, a drawing or a list of locations, and a site visit is booked where it helps.
- The failure is diagnosed and a fixed quote issued for the work agreed.
- Before anything is cut out, we agree access, timings and sequence.
- The failed bead is removed and the joint faces cleaned until they’re sound and dry.
- We fit backing to the right depth, prime where specified and lay the new bead.
- Each area is inspected, signed off and backed by our 12-month guarantee.
Before we start on site
- Warn occupants and staff about the work
- Point out parking and an unloading spot
- Tell us what induction or permit system the site runs
Getting a fixed quote
If there’s a specification, drawings or a tender package, send it with your enquiry, and we’ll price the work to it. Smaller jobs need nothing more than photographs and a few notes.
Read more
Frontages, fit-outs and joints in Newtimber
Newtimber sits in one of the drier corners of the country, the South East. Even so, outside sealing waits for a dry joint, and cold, damp mornings can delay it. Newtimber has two named business or industrial parks inside a 3-mile radius. Each new occupier on a park like these tends to refit, from reception to staff kitchen, often in a colour the occupier specifies.
If you run a unit on an estate such as Aviation Trading Estate (1.1 miles north-west of Newtimber), the trade counter, offices and staff facilities have joints to look after as well as the warehouse. Sites a few miles apart, such as Aviation Trading Estate and Kings Business Centre, can share one programme and one point of contact.
Newtimber is about 5 miles south-west of Burgess Hill, in West Sussex. We cover commercial sites throughout Newtimber. We work across 373 places in West Sussex. We also cover Brighton, around 6 miles from Newtimber.
Anyone looking for commercial sealant contractors in BN6 gets the same process as the rest of our area: details, then a fixed price, then sealing and a 12-month guarantee. Just outside Newtimber, we also work in Clayton (2 miles east), Hurstpierpoint (2 miles north), Hurst Wickham (2 miles north-east), Hassocks (2 miles north-east) and Keymer (3 miles north-east). Further afield, our area takes in Crawley (14 miles north), Horsham (12 miles north-west), Worthing (11 miles south-west), Haywards Heath (8 miles north-east), Burgess Hill (5 miles north-east) and Shoreham-by-Sea (6 miles south-west).
Around Newtimber
For rail, the closest station is Hassocks station, roughly 2.4 miles north-east of the centre. Well-known places in the area include The Dene Hospital (4.2 miles north) and The Budding Foundation Museum of Gardening (2.1 miles north-east). The countryside around Newtimber includes Woods Mill and Wolstonbury Hill.
Looking after the joints
Cleaning and maintenance staff play a part too. Pass these on to them:
- Keep abrasive pads and scrapers off resealed joints
- Make sure ventilation in wet areas is switched on and working
- Check joints after other trades have worked nearby
- Log reseals in the O&M or maintenance records
Brief your cleaning team on the joints that have been resealed. Abrasive pads, scrapers and some strong chemicals damage sealant surfaces, while a neutral cleaner and a soft cloth do no harm.
An open joint in a food area or toilet collects dirt and moisture that cleaning can’t reach. Cleanability is something environmental health officers pay attention to, so sound, smooth joints matter.
When something else is needed
A few problems need another trade or a different fix, and we say so rather than covering them up:
- Leaking roofs, gutters or flat-roof membranes (those need a roofer)
- Faulty windows rather than failed perimeter sealant
- Suspect materials that need testing and specialist removal
If you’re not sure, just call the office on 01277 525 020 or email us and we’ll give you a straight answer.
Where we work in Newtimber
- Floor and threshold joints
- Movement joints in walls and floors
- Window and door perimeters
- Kitchen worktops and splashbacks
- External facade joints
- Washrooms and tea points
Quoting for work in Newtimber
A fixed quote reflects the actual work. It takes account of:
- Phasing around occupants
- The product specified
- Any access equipment needed
- Distance, for remote addresses
Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we will put a fixed figure on it.
Before you send an enquiry
Diagnosis starts before we arrive. Tell us:
- A wide shot and a close-up of the area
- Anything awkward about access or site hours
- The type of building and who uses it
- Any specification or named product
To get a fixed quote, call the office on 01277 525 020 or email the details over, telling us the site location and the nature of the job. You can also send details through our quote form.
Site staff or a sealant specialist?
Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong usually costs more in the end than doing them right.
For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
Newtimber: questions and answers
Will you take on work at estates like Aviation Trading Estate, close to Newtimber?
Yes. Estates, retail parks and business parks around Newtimber, Aviation Trading Estate among them, are all within reach. Photos and a short description are enough for a first look.
Do you offer colour-matched sealant for buildings in Newtimber?
Yes, sealants come in a wide range of standard colours, and matching to RAL references, cladding, stone or frames is a common request. The quote lists the colours the product is made in.
How long does a job like this take?
That varies with the scale of the job, though a typical visit typically takes a few hours to several days on most single sites, depending on joint lengths and access. For bigger or phased jobs, we’ll set out a timescale with the quote.
Does the weather affect the work?
Outside, yes. The joint has to be dry and within the product’s temperature range, so damp, frosty or very cold days can stop external work. Inside work is seldom held up.
Is it fine to apply new sealant on top of old?
No. Failed sealant is removed and the faces cleaned back to sound, dry material first, because fresh silicone will not bond with aged silicone.
How do you keep disruption to occupiers down?
Most of the buildings we work in stay occupied. We agree the order of areas, protect what’s nearby and close off only the section we’re sealing for as long as the cure needs.
Is the old sealant taken out first?
Removal comes first, every time. After that come cleaning, primer where needed, backing and the new sealant.