Mastic Sealing in Jacob's Post
Planning work on a mastic joint in Jacob's Post? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Estate-wide sealant that is simply worn out
- Movement joints with sealant missing
- Draught complaints from residents or tenants
Mastic sealing across Jacob's Post
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Owners, agents and contractors
Agents, factors and owners’ representatives all follow the same route: send details, get a fixed quote, we seal, guaranteed. We can agree access arrangements and keyholder contacts beforehand.
We work for building owners and managing agents on everything from one building to a spread of sites. One quote can cover more than one site, so there’s one set of paperwork to deal with.
How we handle mastic sealing in Jacob's Post
Before work starts, most agents and landlords want the documents in order. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We’re a Constructionline member and CHAS accredited, and we carry public liability insurance. If you’re dealing with occupiers reporting cold air round windows and no planned programme for sealant, we can put it right, whatever the surface. Most enquiries from Jacob's Post start with one failed joint and grow into a wider look at the building: we look at the rest while we are there and tell you what we find.
Around smaller places like Jacob's Post, older walls fitted with newer windows are a familiar sight. The mastic needs to suit an irregular masonry face and the look of the building.
Every job is signed off with a 12-month guarantee. It’s a plain promise: if the work we did fails within twelve months, we return to fix it.
- Where
- Jacob's Post (RH15)
- Region
- West Sussex
- Cover
- 12 months on our workmanship
- Quotes
- Quoted before any work starts
- Telephone
- 01277 525 020
- Updated
- 3 November 2026
Places near Jacob's Post
Also in Jacob's Post
Mastic sealing in Jacob's Post: the local picture
Jacob's Post sits in one of the drier corners of the country, the South East. External mastic still waits for dry faces and the right temperature, while the elevations that take the most sun tend to show hardened mastic first. At about 37 miles from central London, Jacob's Post is within reach of the capital. Within reach of London, blocks run by agents and associations are common around stations, and window and balcony mastic on them tends to age at the same rate.
Churches, halls and community buildings such as Providence Strict Baptist Chapel are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time. If you look after a block within reach of Burgess Hill station (0.7 miles south-east of Jacob's Post), frame and balcony mastic can be renewed on one programme.
Jacob's Post is about 1 mile west of Burgess Hill, in West Sussex. Across the RH15 postcode area, it works the same way: details in, fixed quote out, then sealing and a 12-month guarantee. Across West Sussex, 373 places are covered, Jacob's Post among them. We also cover Brighton, around 9 miles from Jacob's Post.
Business premises anywhere in RH15 are within our area for mastic joints. We cover commercial and managed buildings on Downs Road, London Road and Western Road and the roads nearby. Nearby places we also cover include 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). Bigger towns within reach include 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
We work on buildings around The Cricketers pub, St Paul's Catholic College and Oakmeeds Community College. Jacob's Post’s nearest station is Burgess Hill station, about 0.7 miles south-east of the centre. A little further out are Burgess Hill Museum (0.5 miles south-east) and The Dene Hospital (1.2 miles west). Not far away are Bedelands Farm Nature Reserve and Wolstonbury Hill.
What sets the cost
We price every job individually. The main factors are:
- Quantities, in metres or numbers
- Which sealant the job calls for
- Whether the work must be split into stages
- The size and state of each joint
A quote for mastic joints depends on how many there are, their condition and the access, and any specification that applies. Ask us for a fixed quote.
Sending details for a quote
We can often quote from photographs and a few details. Please tell us:
- Your programme or deadline
- Asbestos survey details if the building is older
- How the joints are reached, and at what height
- Photos of the joints, close up and from further back
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to ring 01277 525 020 or email drawings and photos with what you know.
Common questions from Jacob's Post clients
Do you cover business parks and estates near Jacob's Post, such as Ashwyn Business Centre?
Yes, sites like Ashwyn Business Centre are within our area, along with the rest of Jacob's Post. Send details of the unit and the work through our quote form for a quick quote.
Do you work in occupied care homes around Jacob's Post?
Yes, with the manager deciding the order and timing of rooms. Noise and disruption are kept to a minimum.
Does weather matter for sealant work?
For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.
How soon can the area be used again?
Curing time varies by product, and we confirm it on the day, and flag anything to keep off until it has cured.
Which sealant will you use?
The specification comes first, if there is one. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
How do I request a quote?
It works in four steps: send details, receive a fixed quote, we carry out the work, and it’s guaranteed. Step one needs little more than photos and a postcode.
Do you work for managing agents and housing associations?
Yes, block and estate work is a core part of what we do. We work through buildings in a planned order so you can plan around it.
Site staff or a sealant specialist?
Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.
For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.
Our process
We bring the products specified for the job, along with primers and backing rod. Joint faces are cleaned back to sound, dry surfaces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. 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.
- A building-by-building inspection lists the failed joints.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Failed sealant is removed and the faces prepared.
- New sealant goes in with backing rod and primer where needed.
- Each building is checked and signed off with the 12-month guarantee.
What we need from you
- Share your working hours and any access restrictions
- Tell us what induction or permit system the site runs
- Have the specification and drawings to hand
Request a quote
To get a fixed quote, ring 01277 525 020 or send details through our quote form, telling us the site location and the nature of the job. You can also send details through our quote form.
Read more
Surface by surface
Tenement and older buildings
Traditional buildings have joints that need a careful approach. We look at the substrate before choosing a sealant.
Window and door perimeters on blocks
Frames vary from uPVC to aluminium and timber, and the product is matched to the frame material and the masonry. Colours are confirmed for the product used.
Common problems we fix in Jacob's Post
Frames, panels and masonry expand and contract through the year, and the sealant takes up that movement. A joint that was too narrow, too thin or the wrong product can’t cope long before it should.
If one of these sounds familiar, it’s time for a closer look:
- Worn sealant at communal door frames
- Patchy repairs in mismatched sealant
- Repeated reactive repairs to the same buildings
- Draughts at frames across a block
Landlords with units on estates such as Ashwyn Business Centre, 0.5 miles to the north of Jacob's Post, can bring frame, door and external mastic across several units into one programme.
What your quote should include
- What site paperwork they can supply
- Whether primer will be used where the manufacturer specifies it
- What level of public liability insurance do they hold?
- Are they CHAS accredited or on Constructionline?