
Facade Sealing in Steyning
Commercial sealant work in Steyning for contractors, FMs and building owners: facade joint and window perimeter sealing on commercial buildings, quoted at a fixed price.
- Gaps between rainscreen or cladding panels
- Perimeter joints where frames meet the structure
- Old perimeter mastic that has dried out
Facade sealing for businesses in Steyning
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
About our facade sealing in Steyning
Every facade quote starts with how the joints will be reached. Let us know what access exists or is planned, and any site rules we need to work around, and we’ll fit the work around it. If you have gaps between rainscreen or cladding panels and perimeter sealant that has split or peeled away, we can help, whatever the surface. Searching for sealant specialists in Steyning? Mastic Doctor has worked for contractors, FMs and building owners since 2005, CHAS accredited and a Constructionline member.
Around places like Steyning, a lot of construction is the conversion of older buildings, and the sealant at those junctions has to cope with two materials that move differently.
Whoever the client is, the cover is the same: a 12-month guarantee on our workmanship. It doesn’t extend to damage, faults in the building or work by others, and we are upfront about that.

- Where
- Steyning (BN44)
- Region
- West Sussex
- Cover
- 12 months on our workmanship
- Price
- Quoted before any work starts
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026
Looking after the joints
For the best life from the joints:
- Share access with other external trades
- Record the product and colour used on each elevation
- Brief window cleaners about newly sealed joints
- Confirm the survey covers external sealants in older buildings
Blocked sills and gutters push water at the joints. Good drainage keeps water moving off the facade.
Deal with sections that fail early as soon as they show. A few metres resealed promptly can stop water damage spreading inside the building.
What happens if it’s left?
Failed joints let in more than water: draughts around frames add to heating costs and complaints. Resealing deals with the draught as well as the leak. In a smaller place such as Steyning, getting a contractor back for a second visit takes time, so we’d suggest renewing all the joints that are going, not just the worst.
Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.
What you get with us
- Our applicators hold CSCS cards
- Fixed quotes based on photos, drawings or a visit
- Matching to RAL references, product permitting
- Coloured sealants to suit the setting, where available
How the job changes by surface
Render and coated surfaces
Paintable sealants exist for joints that will be coated. We confirm the product with you before starting.
Coping and flashing joints
Not every coping or flashing leak is a sealant problem. Where the issue isn’t the sealant, we say so.
When to bring in a specialist
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint, which is what makes a joint last.
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. A poor seal in places like these tends to cost more to put right later.
Building and refurbishing in Steyning
Several hotels sit less than 2 miles from Steyning. Hotel schemes tend to have fixed reopening dates, so the mastic is programmed tightly with the other trades. At about 44 miles from central London, Steyning is within reach of the capital. 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.
Extensions at sites like Southlands Hospital, 4.4 miles south-east of Steyning, typically sit beside working departments, and the mastic follows strict access rules. For contractors refurbishing units at places like Mackley Industrial Estate, 2.5 miles to the east of Steyning, the mastic covers cladding panels, roller-door and window perimeters. Hotel extensions and refits, at places such as Springwells Hotel, less than half a mile north of Steyning, usually run between busy periods, so the sealing is squeezed into short windows.
Steyning is about 4 miles north-west of Shoreham-by-Sea, in West Sussex. We send applicators to Steyning for facade joints. Steyning is one of 373 places we cover in West Sussex for facade joints. Sites around Brighton have their own page, about 9 miles away.
Business premises anywhere in BN44 are within our area. For a building on High Street, Market Field and Dog Lane or nearby, we can quote for facade joints. Nearby places we also cover include Bramber (1 mile east), Botolphs (1 mile south-east), Upper Beeding (1 mile east), Sompting (4 miles south) and Findon Valley (4 miles south-west) for facade joints. Nearby towns on our patch include Horsham (12 miles north), Worthing (5 miles south-west), Haywards Heath (13 miles north-east), Burgess Hill (10 miles north-east), Littlehampton (10 miles south-west) and Shoreham-by-Sea (4 miles south-east).
What’s near Steyning
Around Steyning, our work takes us to commercial buildings near The Model Bakery The Norfolk Arms and Steyning Grammar School and the streets around them. Steyning’s nearest station is Lancing station, about 4.1 miles south of the centre. Other landmarks nearby include Steyning Museum (under half a mile north) and Southlands Hospital (4.4 miles south-east). Not far away are Woods Mill and Chanctonbury Hill.
Your questions answered
Is a smaller place like Steyning outside your area?
No. Small places get the same service as large ones. Our area covers London and the South East counties. Good photographs up front let us bring everything on the first visit.
Will you take on work at estates like Mackley Industrial Estate, close to Steyning?
Yes. Our area takes in Steyning and its surroundings, with estates and business parks such as Mackley Industrial Estate included. To start, just ring 01277 525 020 or email a schedule or drawings with the unit, the joints involved and your access times.
Can staff carry on working while you’re here?
Usually, yes. We phase the work so most of the building stays in use, with each area protected and signed.
Can you send site paperwork?
Each site asks for different documents, so tell us what you need and we will confirm it when we quote.
Are you fully insured?
Yes. Our insurance certificate can be sent alongside the quote.
Is it fine to apply new sealant on top of old?
No, never. Sealing over old material is one of the classic causes of early joint failure, so it all comes out first.
Is your workmanship covered by a guarantee?
Yes. It runs for twelve months and covers how we prepared and sealed the joints, though not damage or work by other trades.
How a job runs
We bring the products specified for the job, along with primers and backing rod. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. If neighbouring businesses or buildings around Steyning need work too, visits can be combined. Tell us your site hours and we will plan around them.
- We start with photographs, drawings or a visit to see the joints and agree access.
- Product choice follows the joint’s movement and substrate.
- The existing bead comes out in full and the joint faces cleaned.
- Primer is applied where the maker specifies it.
- Backing rod is fitted and the new sealant gunned in and tooled.
- The finished joints are checked with you.
Before we start on site
- Send your site hours and access windows
- For older buildings, check the asbestos register before work
- Move anything stored against the joints
Request a 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 to discuss it first.
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Commercial clients in Steyning
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.
Hospitality, education, healthcare, office and retail clients come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.