
Construction Mastic in Shermanbury
We carry out mastic packages for new-build and refurbishment projects in Shermanbury and the surrounding area. Send details for a fixed quote.
- Window and door perimeters that won’t pass inspection
- Failed sealant in an existing building being refurbished
- External joints sealed in damp or cold conditions that are now failing
Construction mastic for Shermanbury sites
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle construction mastic in Shermanbury
The programme rarely stands still, so the mastic package has to flex with it. The sequence is set with the site team and updated as plots or floors are handed over and we don’t seal before other trades have finished in an area. Sealing too early only means coming back once others have damaged it. Most enquiries involve sealant knocked or painted over by other trades and different trades sealing to different standards, across brick and block movement joints, sanitary and kitchen joints and floor and skirting junctions. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Shermanbury is the same: the right product in a properly prepared joint.
Around smaller places like Shermanbury, building work typically means conversions of farm buildings, a few new houses or an extension to a hall or school. Perimeters, facade joints and internal sealant all need doing properly, however small the scheme.
The 12-month guarantee is for workmanship rather than wear and tear. How long a sealant joint lasts depends on movement, exposure, cleaning and use, so we are clear about what is covered before work starts.
- Location
- Shermanbury (RH13)
- Region
- West Sussex
- Cover
- A 12-month guarantee
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026

Looking after the joints
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. We suggest:
- Bring the mastic contractor in after the last trades are through
- Put any product change through the designer first
- Get the mastic subcontractor involved early in the programme
- Note which sealant went where at handover
A new structure shifts as it loses construction moisture. The right product in each joint copes with that, but caulk in a joint that moves more than expected may crack. If that happens, let us know.
One unsealed frame can let water into finished internal areas. On a new building that means remedial work after decorating, and a delay to handover. A check of every frame before decorators start is worth the time.
Also near Shermanbury
Other services in Shermanbury
Shermanbury: questions and answers
Can you work on a hospital site such as The Dene Hospital?
Yes. We work in healthcare settings as well as offices and schools. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Can you work at a site such as Star Trading Estate, by Shermanbury?
Yes, sites like Star Trading Estate are within our area, along with the rest of Shermanbury. Photos and a short description are enough for a first look.
Will you just go over the old sealant?
No, never. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.
What happens if old sealant might contain asbestos?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. We check the asbestos register before cutting out old sealant in an older building, and work stops until any suspect material has been tested. We don’t remove asbestos-containing materials.
How long before the joints can be used?
Curing time varies by product, and we confirm it on the day, and sign any area that should be left alone.
How much does the work cost?
Every job gets its own fixed quote. To get one, call the office on 01277 525 020 or email a schedule or drawings.
What hours do you work?
We are in the office from 8am until 5pm, Monday to Friday. Tell us your site hours and access windows and the work will be fitted around them.
Contractors’ notes for Shermanbury
The South East is one of the drier parts of the UK. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so we time external mastic for dry faces and agree it with the site team. Shermanbury is about 38 miles from central London. Construction around the commuter belt mixes station-side flats with refurbished offices and units, and main contractors there need mastic that keeps to the programme.
Projects at schools like Jolesfield CofE Primary School work to term dates, so mastic is programmed tightly. For a contractor working at a hospital such as The Dene Hospital (5.2 miles east of Shermanbury), perimeter and facade sealing is planned around patients and deliveries. When units on a site such as Star Trading Estate (0.9 miles west of Shermanbury) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.
Shermanbury is about 7 miles west of Burgess Hill, in West Sussex. Businesses, contractors and managing agents in Shermanbury use us for work on mastic packages, as part of our coverage of West Sussex. Shermanbury is one of 373 places we cover in West Sussex. Our Brighton page has more on work in that area (11 miles or so).
We cover the RH13 postcode districts for mastic packages. Buildings on Knapp Drive, Brighton Road and Partridge Green Road are within our area for mastic packages. Nearby places we also cover include Kent Street (2 miles north-east), Cowfold (2 miles north), Wineham (2 miles east), Henfield (2 miles south) and Blackstone (3 miles south-east). Bigger towns within reach include Crawley (11 miles north), Horsham (7 miles north), Worthing (11 miles south-west), Haywards Heath (9 miles east), Burgess Hill (7 miles east) and Littlehampton (15 miles south-west).
Landmarks near Shermanbury
We work on buildings around The Bull Inn, among other places. A little further out are The Dene Hospital (5.2 miles east). Not far away are Knepp Wildland.
When to bring in a specialist
Certain joints really need a specialist: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong usually costs more in the end than doing them right.
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
What affects the price in Shermanbury
What shapes the price:
- How much there is to seal
- The product specified
- Backing rod, priming and other preparation
- Site requirements such as inductions and permits
Access often affects the price as much as the sealing: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.
Before you send an enquiry
For an accurate fixed quote, we need to understand the site. Send us:
- What the building is and how it’s used
- Drawings or a marked-up plan, if available
- Whether an asbestos survey exists
- Any specification or named product
For a fixed quote, ring 01277 525 020 or email drawings and photos with the site address and an outline of the work. Our quote form is another easy route.
Why it’s worth doing now in Shermanbury
Leaving mastic to whichever trade is fitting the element can look cheaper on paper. In practice it often means different standards, gaps in responsibility and snags nobody owns. One mastic subcontractor for the lot keeps it simple, with the same standard on every plot. Converted and older buildings near places like Shermanbury tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.
Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.
Why us?
- CHAS accredited contractor
- Our applicators hold CSCS cards
- Workmanship guaranteed for 12 months
- One phone line for London, the South East and Scotland
For managing agents and facilities managers
If you look after buildings for someone else, clear figures and clear communication matter. We quote a fixed sum, confirm the scope and walk the finished work with you or your representative.
Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. We can agree access arrangements and keyholder contacts beforehand.
How a job runs
We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and your contact hears from us before we move to the next area. Smaller jobs around Shermanbury can be grouped with others nearby, which keeps travel down. A fixed quote is given before anything starts.
- First we look at the scope on site or from drawings.
- A fixed quote sets out scope, products and phasing.
- Paperwork is agreed and applicators are inducted on site.
- Sealing follows the programme as areas are released.
- Any frame gaps or issues outside our scope are flagged to the site team.
- The package is closed out, snags cleared and backed by our 12-month guarantee.
Getting the site ready
- Move anything stored against the joints
- Have the specification and drawings to hand
- Tell staff and tenants when we will be in
Quotes
Every quote starts with the facts: what’s there, how much of it, how we reach it and what’s specified. Send what you have, and we will arrange a site visit if anything is unclear.