Steyning construction mastic
We carry out mastic packages for new-build and refurbishment projects in Steyning. Send photographs or drawings for a fixed quote.
- Oversized or tapered gaps around new frames
- Sealant knocked or painted over by other trades
- Window and door perimeters that won’t pass inspection
Construction mastic in Steyning
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
About our construction mastic in Steyning
Mastic Doctor has been a subcontractor on construction projects for over 20 years. Quantities come off the drawings, the sequence is agreed with the site manager and the work follows the trades. To price a package in Steyning, send drawings and the specification through our quote form. We work on sanitary and kitchen joints, cladding and panel joints and floor and skirting junctions, and what we’re called in for most is a mastic package split between trades with no clear owner and existing joints on a refurb that need cutting out and resealing. Most enquiries from Steyning 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.
In a smaller place such as Steyning, construction tends to mean small housing schemes, conversions and extensions to community buildings. Small schemes still need window perimeters, facade joints and internal sealant done to the specification.
We sign every job 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.
- Place
- Steyning (BN44)
- Region
- West Sussex
- Cover
- 12 months on every job
- Quotes
- A fixed quote before we start
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Contractors’ notes for Steyning
Steyning sits in one of the drier corners of the country, the South East. Winter mornings still bring frost and condensation on frames and panels, so we time external mastic for dry faces and agree it with the site team. There are several hotels within about 2 miles of Steyning. Hotel refurbishments often run to tight programmes between busy periods, and perimeter and sanitary sealant has to keep up.
When units on a site such as Mackley Industrial Estate (2.5 miles east of Steyning) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package. Hotel extensions and refits, at places such as Springwells Hotel, less than half a mile to the north of Steyning, normally 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. Our applicators travel to Steyning for work on mastic packages, handled exactly as we handle every other area. 373 places across West Sussex fall within our area, Steyning among them. For work in that direction, see our Brighton page.
We cover the BN44 postcode districts for mastic packages. For a building on High Street, Market Field and Dog Lane or nearby, we can quote for mastic packages. Just outside Steyning, we also work in 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). Further afield, our area takes in 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).
Near you in Steyning
We work on buildings around The Model Bakery The Norfolk Arms and Steyning Grammar School. Steyning’s nearest station is Lancing station, about 4.1 miles south of the centre. Other landmarks nearby include Steyning Museum (less than half a mile north) and Southlands Hospital (4.4 miles south-east). The countryside around Steyning includes Woods Mill and Chanctonbury Hill.
Maintenance after handover
After handover, these steps help:
- Use the product the specification names
- Check frame gaps are within the sealant’s range before sealing
- Ask cleaners to use soft cloths around fresh sealant
- Keep finished joints away from paint, plaster and scrapers
Record which products went where in the handover file. That helps the building owner maintain the joints later and avoids guesswork when joints are renewed. We can confirm the handover information you need when we quote.
One unsealed frame can let water into finished internal areas. On a new building that means remedial work after decorating. A check of every frame before decorators start is worth the time.
General trades versus a specialist
Redoing a failed joint typically costs more than getting it right at the outset, because the whole bead must be removed and the faces cleaned back again. That’s why many clients bring in a specialist from the beginning.
What you see is the finished bead, but most of the work is hidden. Correct depth, the right primer and a sealant matched to the movement are where general trades tend to cut corners.
Towns and villages near Steyning
What else we do in Steyning
Commercial clients in Steyning
CHAS accredited and a Constructionline member, we make supplier vetting simple. We’re fully insured, and our insurance certificate can go with the quote.
When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
How the quote is worked out
What shapes the price:
- Location, for remote and island sites
- Phasing around occupants
- Any access equipment needed
- Removal of failed or old sealant
Cost follows what’s involved: stripping out, preparation, sealing, access and phasing. Call for a fixed quote and we will explain how it’s made up.
Details that help us quote
Diagnosis starts before we arrive. Tell us:
- Whether the building will be occupied during the work
- Any dates the work must fit around
- Approximate linear metres or a joint schedule
- The asbestos register, for older buildings
A handful of photos and a postcode is the fastest way to a quote. Send them through the quote form, or phone 01277 525 020 or send details through our quote form if you’d rather talk the job through.
Steyning: questions and answers
Is Steyning too small for you to travel to?
No. Places such as Steyning are covered as much as the big towns. We cover Greater London and the counties of the South East. Good photos up front let us bring everything on the first visit.
Can you work at a site such as Mackley Industrial Estate, by Steyning?
Yes. Our area takes in Steyning and its surroundings, with estates and business parks such as Mackley Industrial Estate included. Photos and a short description are enough for a first look.
Do you need to see the site first?
Photos, drawings or a schedule are often enough to quote. If the job needs a look first, we will arrange a visit.
What does a mastic package usually include?
It depends on the specification, but frames, sanitary, kitchens, caulk where specified and snagging are typical.
Does the weather affect the 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. Inside work is seldom held up.
Do you offer coloured sealant?
That depends on the product specified. Some ranges offer many colours, others very few, so we’ll confirm the colours available for the specified product with the quote.
What if there’s asbestos in the old mastic?
The duty to manage asbestos sits with the building’s dutyholder, so we will ask for the register before work on an older building. If anything suspect turns up, we stop until it’s tested.
Our process
Before we leave any area, we remove the tape, clean down and inspect every joint, ready for your sign-off. If an area should be left alone while the sealant cures, we say how long and put signs out. For a site in Steyning, we plan so the whole job is done in one go where possible. Photos with rough sizes let us arrive with everything needed.
- Drawings, specification and programme come to us.
- Quantities are measured and a fixed price returned.
- The sequence is agreed with the site manager.
- Plots or floors are sealed as they’re handed over.
- Joints are prepared, backed and sealed to the specification.
- Snags are cleared and the package signed off with our 12-month guarantee.
Preparing the site
- Make sure the joints can be reached
- Share the asbestos register for older buildings
- Agree which areas must stay open
Ask for a quote
A good quote starts with a clear picture: the joints involved, quantities, access and the product called for. Share whatever details you have and we will fill any gaps with a visit.
Advice
Do you need construction mastic in Steyning?
On a live site, contamination is the biggest threat to a new joint. Plaster dust, release agents, protective film residue and damp all stop sealant bonding so faces get cleaned, and primer goes on wherever the maker specifies, even on new work.
What tends to prompt an enquiry:
- Window and door perimeters that won’t pass inspection
- Different trades sealing to different standards
- Cracks opening in caulked internal joints
- Frame gaps too wide for sealant alone
Projects at schools like Steyning CofE Primary School work to term dates, so mastic is programmed tightly.
Questions to ask before you book
- Their plan for phasing and protecting the area
- Their public liability cover
- The named product and why it was chosen
- How joint depth will be controlled