Mastic Sealing in Graffham
Mastic sealing in Graffham, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Open joints in brickwork or panels
- Repeated reactive repairs to the same buildings
- Mastic failing across several blocks on an estate
Mastic sealing for Graffham sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Our process
Inspect, seal, sign off: every visit follows that pattern. We inspect the joints and confirm what’s in scope, then the work is carried out to the specified product and detail, and the job ends with a walk round and sign-off. Jobs in and around smaller places like Graffham are typically planned as a single visit, so photos and measurements up front really help. That way the right products come on the day.
- We inspect each building and record the joints that have failed.
- You get a fixed quote, per block or for the whole programme.
- We agree the programme and dates with you.
- Old mastic is removed and the joint faces prepared.
- Joints are resealed and tooled.
- We check the finished work and confirm the guarantee.
What we need from you
- Tell staff and tenants when we will be in
- Make sure the joints can be reached
- Share your working hours and any access restrictions
Ask for a quote
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To ask for one, give us a call on 01277 525 020 or email the details over.
Related advice
Mastic sealing in Graffham
There isn’t one mastic for every joint on a building. Window perimeters and external joints often take a low-modulus neutral-cure silicone, while hybrid polymer sealants grip many materials and are often paintable, and colours are confirmed for whichever product is used. We work on window and door perimeters on blocks, communal entrances and stairwells and shopfronts below residential blocks, and the failures we’re asked to look at most are open joints in brickwork or panels and damp patches beside frames. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Graffham is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.
For owners with a single building near Graffham, we plan to finish in one visit where possible. Send photos of the frames and joints and we’ll give a fixed quote.
Every job we finish is backed by a 12-month workmanship guarantee, in Graffham as everywhere else we work. If our installation lets you down in that time, we return and fix it.
- Location
- Graffham (GU28)
- Region
- West Sussex
- Cover
- A 12-month guarantee
- Price
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
When to bring in a specialist
Putting right a botched joint often costs more than sealing it well at the start, 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.
Some joints are best left to specialists: for instance fire-rated seals that must match a tested detail, trafficked floor joints and external movement joints. Getting these wrong normally costs more in the end than doing them right.
Honest limits
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Water coming in from the roof or rainwater goods
- Cracked or crumbling render, brick or stone at the joint edges (we’ll tell you if so)
- Asbestos-containing sealant, which we don’t remove
If you are not sure, just call the office on 01277 525 020 or send details through our quote form and we’ll give you a straight answer before you book.
Joints and surfaces we work on
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- Communal entrances and stairwells
- Balcony and threshold joints
- External wall and movement joints
- Shopfronts below residential blocks
Surface by surface
Planned maintenance
Adding mastic to planned maintenance avoids reactive repairs and keeps budgets predictable.
Tenement and older buildings
Some old mastics in pre-2000 buildings contain asbestos, so we check the asbestos register or survey first. Suspect material is tested before work continues.
What sets the cost
To price the job, we consider:
- Induction, permit and paperwork requirements
- Whether the work must be split into stages
- Whether old sealant has to be cut out first
- Quantities, in metres or numbers
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 you’ll have a fixed figure to work with.
Details that help us quote
There’s no need for a formal survey. These details are enough to start:
- Specification clauses that apply
- Approximate linear metres or a joint schedule
- Whether an asbestos survey exists
- How the joints are reached, and at what height
A handful of photographs and a postcode is the fastest way to a quote. Upload them with the quote form, or speak to us on 01277 525 020 or use the quote form to discuss it first.
Towns and villages near Graffham
Also in Graffham
Signs you need mastic sealing in Graffham
The edges of the material itself sometimes break away for instance where render or brick edges crumble. If the edges are unsound, we say so before quoting the sealing.
What tends to prompt an enquiry:
- Water getting in round frames after rain
- Damaged joints in communal entrances and corridors
- Cracked, hardened mastic round windows on a block
- Occupiers reporting cold air round windows
With historic buildings such as Cowdray House (3.5 miles north-west of Graffham) in the wider area, owners of older properties around Graffham should expect mastic to need a product that suits old masonry.
What to look for in a quote
- The terms of the workmanship guarantee
- How the existing material will be dealt with
- Will RAMS and insurance details be available?
- Which product they’ll use, and why it suits the joint
Common questions from Graffham clients
Is Graffham off your patch?
Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.
What paperwork can you provide for a job in Graffham?
Whatever your site asks for, from RAMS to CSCS details, is confirmed when we quote. We hold £5m public liability insurance, are CHAS accredited and a Constructionline member, and our applicators are CSCS-carded.
Do you work to architects’ specifications?
Yes. The specification and the manufacturer’s installation guidance are what we work to.
What’s the quickest route to a quote?
You can use the quote form on this site; alternatively, speak to us on 01277 525 020 or send details through our quote form. Photos, drawings or a joint schedule help us quote quickly.
Do you seal on top of existing sealant?
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 long do sealant joints last?
There isn’t a single answer, since movement, weather, cleaning and use all affect it. Regular checks let you plan resealing before leaks or damage.
Do you hold CHAS accreditation?
Yes. We’re CHAS accredited and a Constructionline member.
Blocks and managed buildings in Graffham
Graffham is about 46 miles from central London. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres. The South East is one of the drier parts of the UK. Outside work still depends on dry joints, while the elevations that take the most sun tend to show hardened mastic first.
Churches, halls and community buildings such as The Parish Church of St Giles are looked after by trustees and committees like any other owner, and their frames, doors and external joints need mastic renewed in time. Schools and community buildings such as Graffham CofE Infant School need frame and external mastic kept sound like any building.
Graffham is about 9 miles north-east of Chichester, in West Sussex. We send applicators to Graffham for mastic joints. Graffham is one of 373 places we cover in West Sussex for mastic joints. Sites around Portsmouth have their own page, about 20 miles away.
We take on mastic joints across the GU28 postcode area, for business premises of every kind. Buildings on Guillods Cottages and St Giles Place are within our area. We also cover East Lavington (1 mile south-east), Duncton (2 miles east), Selham (2 miles north), South Ambersham (2 miles north) and Rotherbridge (3 miles north-east) for mastic joints. Bigger towns within reach include Worthing (15 miles south-east), Bognor Regis (11 miles south), Chichester (9 miles south-west), Selsey (15 miles south), Littlehampton (11 miles south-east) and Rustington (12 miles south-east).
What’s near Graffham
Around Graffham, our work takes us to commercial buildings near The Woodman pub, among other places. Well-known places in the area include Coultershaw Heritage Site (3.1 miles north-east) and Midhurst Community Hospital (3.9 miles north-west). For a walk, there’s Levin Down and Graffham Common.