
Mastic sealing for building owners and managing agents in Heyshott Green, West Sussex
Mastic sealing for Heyshott Green, from a contractor working since 2005. Fully insured and CHAS accredited.
- Open joints in brickwork or panels
- Complaints coming in block by block
- Draught complaints from residents or tenants
Mastic sealing in Heyshott Green
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Frames, entrances and external joints in Heyshott Green
Heyshott Green is about 46 miles from central London. Within reach of London, blocks run by agents and associations are common around stations; their frame mastic often ages block-wide. Heyshott Green is in the South East, one of the UK’s drier regions. External mastic still waits for dry faces and the right temperature, and the sunniest, most exposed sides of a building typically need attention first.
Landlords with units on estates such as Holmbush Industrial Estate (1.5 miles north-west of Heyshott Green) can bring frame, door and external mastic across several units into one programme. Older buildings near Heyshott Green, from historic houses such as Cowdray House, 1.9 miles to the north of Heyshott Green, to more modest stock, need compatible products when frames are resealed. Older community buildings, The Parish Church of St James among them, often have frames of mixed ages whose mastic varies.
Heyshott Green is about 9 miles north of Chichester, in West Sussex. Heyshott Green sits inside our coverage, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. Heyshott Green is one of 373 places we cover in West Sussex for mastic joints. There’s a separate page for Portsmouth, about 19 miles away.
We take on mastic joints across the GU29 postcode area. We also cover Heyshott (1 mile south-east), Hoyle (1 mile east), Cocking Causeway (1 mile north-west), Cocking (1 mile south-west) and West Lavington (1 mile north). Nearby towns on our patch include Bognor Regis (12 miles south), Chichester (9 miles south), Littlehampton (13 miles south-east), Rustington (14 miles south-east), Storrington (12 miles east) and Billingshurst (13 miles east).
Local landmarks in Heyshott Green
Recent enquiries here include premises near Unicorn Inn and the streets around them. Well-known places in the area include Midhurst Community Hospital (2.3 miles north) and Midhurst Museum (1.9 miles north). Not far away are Graffham Common and Levin Down.
Mastic sealing in Heyshott Green, done properly
For blocks and buildings in Heyshott Green and across West Sussex, the process is the same: you send details, we return a fixed quote, the joints are resealed and the 12-month guarantee follows. A list of buildings, a few photos and approximate joint numbers are enough for a quick quote, and site visits can be arranged. If you are dealing with leaks at window and door perimeters and repeated reactive repairs to the same buildings, we can help. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, in Heyshott Green it comes down to the same thing: the right product in a properly prepared joint.
Around smaller places like Heyshott Green, 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.
A 12-month guarantee applies to all our work. If an installation problem shows up, give us a call on 01277 525 020 or email a schedule or drawings and we’ll arrange a return visit.

- Where
- Heyshott Green (GU29)
- Region
- West Sussex
- Cover
- 12 months on every job
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Our process
Where the site stays busy, we agree a sequence with your contact so the disruption stays in one area at once. Each area is protected, prepared and sealed, then handed back before the next one starts. For work around Heyshott Green, we aim to finish in one visit, so photographs and measurements up front really help. Then the right materials arrive with us.
- We check the asbestos register for older buildings and look at the joints.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- Joint faces are cleaned, backed and resealed.
- Buildings are completed in turn.
Getting the site ready
- Let building users know which areas are affected
- Confirm the product named in the specification
- Share your working hours and any access restrictions
Ask for a quote
Specifications, drawings and tender packages are welcome with any enquiry, and we will price against exactly what is specified. Smaller jobs need nothing more than photos and a few notes.
Related advice
What the job involves on each surface
Window and door perimeters on blocks
Perimeter joints on blocks are best done elevation by elevation or block by block. Access is agreed with you before the quote is fixed.
Tenement and older buildings
Some old mastics in pre-2000 buildings contain asbestos and the register is checked before anything is disturbed. If it’s suspected, work stops until it’s tested.
What sealant work can’t fix
A proper diagnosis includes knowing what sealant can’t do. We’ll tell you if the real problem is one of these:
- Materials that need asbestos testing before work
- Broken glass or failed sealed units
- Substrate edges that need repairing first
Not sure which it is? You can ring 01277 525 020 or email a schedule or drawings and we will tell you honestly.
What we seal
- External wall and movement joints
- Communal kitchens and washrooms
- Shopfronts below residential blocks
- Balcony and threshold joints
- Window and door perimeters on blocks
- Communal entrances and stairwells
Why deal with it now?
Failed perimeter mastic lets cold air in around frames and the windows usually get the blame. In many cases, new perimeter sealant deals with it where the frames themselves are sound. Halls, stores and units around places like Heyshott Green may not be checked every day, so a failed joint can leak for a while before anyone sees it. Resealing early avoids that.
Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we will explain how it’s made up.
Why us?
- Sealing commercial buildings since 2005
- Old sealant cut out, never sealed over
- RAL and finish matching where the product range allows
- Products installed to the manufacturer’s instructions
Towns and villages near Heyshott Green
Other services in Heyshott Green
Questions we’re asked in Heyshott Green
Do you cover business parks and estates near Heyshott Green, such as Holmbush Industrial Estate?
Yes. Estates, retail parks and business parks around Heyshott Green, Holmbush Industrial Estate among them, are all within reach. Photos and a short description are enough for a first look.
Can one quote cover a number of our buildings near Heyshott Green?
Yes, we quote for single buildings and for programmes across several blocks. Residents are given notice through you, and the work moves building by building.
Can you send RAMS and CSCS details before starting?
Let us know your requirements: tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote. We are CHAS accredited and a Constructionline member.
Do you seal on top of existing sealant?
No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
How do you handle work on occupied blocks?
The work is planned around occupiers. Dates and areas are agreed with you so residents or tenants can be told, and entrances stay in use.
Can you take on resealing for a block portfolio?
Yes. Most of our mastic sealing is for agents, factors, housing associations and portfolio landlords, and we quote building by building or as a programme.
Do you work in Heyshott Green?
Yes. Heyshott Green is in our area and the rest of West Sussex. To discuss a job, give us a call on 01277 525 020 or email a schedule or drawings.
Building owners, agents and FMs in Heyshott Green
Blocks and communal areas make up much of the work for housing associations and agents. We phase the work so people keep access, with each stage agreed with your site contact.
FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.
General trades versus a specialist
Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong typically costs more in the end than doing them right.
Redoing a failed joint normally costs more than getting it right at the outset, since all of it has to come out and the faces be cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.