Construction and new-build mastic in Jacob's Post, West Sussex
Our CSCS-carded applicators take on mastic packages for new-build and refurbishment projects in Jacob's Post. Send photographs or drawings for a fixed quote.
- Failed sealant in an existing building being refurbished
- Bath and shower joints scraped during the final clean
- A long mastic snag list close to completion
Construction mastic across Jacob's Post
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
About our construction mastic in Jacob's Post
External mastic depends on the weather in a way most internal trades don’t. Cold or damp mornings, frost and condensation on frames can all hold external sealing up. Internal sealing often fills those days. The enquiries we see most involve perimeter gaps outside the sealant’s range and caulk cracking where joints are moving more than expected, on brick and block movement joints, floor and skirting junctions and sanitary and kitchen joints. For commercial sealant work in Jacob's Post, you deal with one contact from quote to sign-off, whether it’s one building or several.
Conversions of older rural buildings near smaller places such as Jacob's Post bring stone, flint, brick and timber up against new glazing. A product that grips an irregular face, with a colour that suits the building’s character, is usually what’s needed.
We stand behind the joints we seal with a 12-month guarantee. It covers how we prepared and applied the sealant.
- Where
- Jacob's Post (RH15)
- Region
- West Sussex
- Cover
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Common questions from Jacob's Post clients
Is hospital work, at somewhere like The Dene Hospital, something you do?
Yes, healthcare and care buildings are part of our work. Work is phased so departments keep running, under the site’s own rules.
Is Jacob's Post too small for you to travel to?
Not at all. Jacob's Post is within our area. We cover Greater London and the counties of the South East. Good photographs up front let us bring everything on the first visit.
How do we ask for a quote?
There are four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. The first step only needs photos and a postcode.
When can you be on site?
Give us your site hours and any access windows in your enquiry, and we’ll plan around them. Our office runs Monday to Friday, 8am until 5pm.
How much does the work cost?
There isn’t a price list, as every site differs. With photographs or drawings, we can give you a fixed quote.
Do your applicators hold CSCS cards?
We’re CHAS accredited and a Constructionline member, with CSCS-carded applicators. We’re also fully insured, with five million pounds of public liability cover.
What if there’s asbestos in the old mastic?
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. Removing asbestos is a job for asbestos specialists, not us.
Nearby places to Jacob's Post
What else we do in Jacob's Post
General trades versus a specialist
There’s also the paperwork. Many sites expect CSCS cards, RAMS and proof of insurance, and we’ll confirm the paperwork you need with the quote.
General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
New build and refits around Jacob's Post
Jacob's Post sits in one of the drier corners of the country, the South East. 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. Central London is about 37 miles from Jacob's Post. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and each scheme needs its mastic sealed to programme.
When a school such as The Gattons Infant School is extended or refurbished, the mastic package is often squeezed into the holidays. When units on a site such as Ashwyn Business Centre (0.5 miles north of Jacob's Post) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.
Jacob's Post is about 1 mile west of Burgess Hill, in West Sussex. We send applicators to Jacob's Post for mastic packages. Our West Sussex coverage takes in 373 places, from busy centres to rural villages. Our Brighton page has more on work in that area, about 9 miles away.
If you need construction mastic in RH15, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on Downs Road, London Road and Western Road and the roads nearby. Just outside Jacob's Post, we also work in Burgess Hill (1 mile east), Abbotsford (1 mile north), World's End (1 mile east), Goddards Green (1 mile west) and Hurst Wickham (2 miles south-west). Further afield, our area takes in Crawley (11 miles north), Horsham (11 miles north-west), Worthing (15 miles south-west), Haywards Heath (3 miles north-east), East Grinstead (13 miles north-east) and Shoreham-by-Sea (10 miles south-west).
Around Jacob's Post
In Jacob's Post, that means premises near The Cricketers pub, St Paul's Catholic College and Oakmeeds Community College and the streets around them. The nearest railway station is Burgess Hill station, about 0.7 miles south-east of the centre. Nearby you’ll also find Burgess Hill Museum (0.5 miles south-east) and The Dene Hospital (1.2 miles west). Open spaces near Jacob's Post include Bedelands Farm Nature Reserve and Wolstonbury Hill.
Why it’s worth doing now in Jacob's Post
Some packages split mastic across the window fitter, kitchen fitter and plumber. The result tends to be uneven finishes and arguments about who should seal what. One mastic subcontractor for the lot keeps it simple. One visit to deal with every failing joint makes more sense than several trips to a place like Jacob's Post, rather than one at a time. Photos of every joint help us quote for the whole job.
The product called for affects the cost, as does the preparation each joint needs. Access, phasing and site rules also count.
Why clients in Jacob's Post choose us
- Workmanship guaranteed for 12 months
- CHAS accredited contractor
- One number for every site we cover
- Joints cleaned back to sound surfaces
Take a look at how commercial sealant jobs are priced and our accreditations.
Honest limits
Sealant solves a lot, but not everything, and we’re upfront when that’s the case. It won’t fix:
- Joints damaged after sign-off by following trades
- Specifying the product where the designer hasn’t
- Approving fire stopping as compliant
Not sure which it is? You can ring 01277 525 020 or use the quote form and we’ll tell you honestly.
Where we work in Jacob's Post
- Brick and block movement joints
- Floor and skirting junctions
- Internal decorators’ caulk
- Window and door perimeters
- Sanitary and kitchen joints
- Cladding and panel joints
How a job runs
Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, the manufacturer’s primer is applied where it’s called for, and the sealant is tooled off neatly. For a building around Jacob's Post, tell us how to find it and who will meet us. Send that with the details and we’ll confirm the plan with the quote.
- First we take quantities off the drawings and read through the specification.
- You receive a fixed quote listing scope, products and phasing.
- Any site paperwork you need (RAMS, insurance certificate, CSCS details) is confirmed with the quote.
- Work follows the programme, area by area, as rooms and elevations become ready.
- Each joint is prepared, backed to depth and sealed in the product the specification names.
- We close out snagging and hand over with a 12-month guarantee.
What we need from you
- Tell us what induction or permit system the site runs
- Have the specification and drawings to hand
- Tell us which areas need to stay in use
Getting a fixed quote
A handful of photos and a postcode is the fastest way to a quote. Upload them with the quote form, or give us a call on 01277 525 020 or use the quote form if you’d rather talk the job through.
Read more
What we are called out for in Jacob's Post
A new building moves while it dries and settles. Plaster, screeds, timber and blockwork all shrink as they lose moisture, which opens up internal joints, particularly where caulk has been used in a joint that moves. Picking a flexible sealant where there’s movement keeps snags down.
Common reasons buildings call us in:
- Failed sealant in an existing building being refurbished
- Bath and shower joints scraped during the final clean
- Internal caulk splitting as the building dries out
- Frame perimeters left unsealed or poorly sealed
For a contractor working at a hospital such as The Dene Hospital, which lies west of Jacob's Post, perimeter and facade sealing is planned around patients and deliveries.
What to look for in a quote
- Their pre-qualification and accreditations
- Whether primer will be used where the manufacturer specifies it
- What the guarantee covers, and for how long
- Their plan for phasing and protecting the area
For managing agents and facilities managers
We work for building owners and managing agents on sealant work across single buildings or whole portfolios around Jacob's Post. One quote can cover more than one site, which keeps the paperwork simple.
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, plus a 12-month guarantee.