
Construction and new-build mastic in Hardham, West Sussex
Commercial sealant work in Hardham for contractors, FMs and building owners: mastic packages for new-build and refurbishment projects, quoted at a fixed price.
- Snag items on joints that need redoing before handover
- Perimeter gaps outside the sealant’s range
- Inconsistent sealant finishes from plot to plot
Construction mastic in Hardham
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Construction mastic in Hardham
External mastic depends on the weather in a way most internal trades don’t. Cold or damp mornings, frost and condensation on frames can all hold external sealing up so it helps to sequence elevations with some flexibility. Internal areas can usually carry on while the outside waits. If you have caulk cracking where joints are moving more than expected and frame perimeters left unsealed or poorly sealed, we can help, whatever the surface. A specialist sealant contractor works differently from a general builder: in Hardham, that means joint design, primers and backing rod as standard.
Conversions of older rural buildings near smaller places such as Hardham bring stone, flint, brick and timber up against new glazing. A product that grips an irregular face, with a colour that suits the building’s character, is usually what’s needed.
We sign every job off with a 12-month guarantee. It’s a plain promise: if our work fails within that year, we put it right.

- Location
- Hardham (RH20)
- Wider area
- West Sussex
- Guarantee
- 12 months on every job
- Quote
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Questions about Hardham
Is Hardham too small for you to travel to?
No. Places such as Hardham are covered as much as the big towns. We cover Greater London and the counties of the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Can you keep pace with our programme in Hardham?
Yes. The mastic is planned around your key stages. We’re CHAS accredited and a Constructionline member, and paperwork such as RAMS is confirmed with the quote.
Does weather affect external mastic work?
External mastic depends on conditions: the joint needs to be dry and within the product’s temperature range. We plan external elevations with that in mind.
Will you quote for a small job?
We quote for single jobs as well as large packages and programmes. Photos and a description are enough to start.
Do you need to see the site first?
Photos, drawings or a schedule are often enough to quote. Where they aren’t, we arrange a site visit before quoting.
Can you fit around our programme?
We seal plot by plot or floor by floor as areas are released. The sequence is settled with your site team.
Are you CHAS accredited?
Our applicators are CSCS-carded, and we hold CHAS accreditation and Constructionline membership. Tell us what site paperwork you need and we will confirm with the quote.
Cost factors for mastic packages
Before we quote, we look at:
- Phasing around occupants
- How much existing material needs removing
- Joint width, depth and condition
- Travel to remote or island sites
A quote for mastic packages depends on quantities, condition and access, and any specification that applies. Ask us for a fixed quote.
Sending details for a quote
Whether it’s one area or a whole building, the same details help:
- The asbestos register, for older buildings
- The type of building and who uses it
- Your programme or deadline
- The product your specification calls for
Tell us about the building, the joints and when you need the work done, and a fixed quote will follow. To get it moving, ring 01277 525 020 or email a schedule or drawings.
On site: what to expect
At the end of each section, the masking comes off, the area is cleaned and every joint is checked. If an area should be left alone while the sealant cures, we say how long and put signs out. Jobs in and around smaller places like Hardham are normally planned as a single visit, so photos and measurements up front really help. That way the right products come on the day.
- We start with the drawings, specification and programme.
- We take off quantities and return a fixed quote.
- We agree with the site team which areas come first.
- Plots or floors are sealed as they’re handed over.
- Every joint is cleaned, set to depth and sealed with the specified product.
- After snagging, the work is handed over under our 12-month guarantee.
Preparing the site
- Confirm the product named in the specification
- For older buildings, check the asbestos register before work
- Tell us what induction or permit system the site runs
Request a quote
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To ask for one, ring 01277 525 020 or email drawings and photos.
Related advice
Leave it or put it right?
A cheaper sealant can look like an easy saving on a large package. The saving is small next to the cost of callbacks and defects, especially externally. Where an alternative is genuinely suitable, we will say so. Converted and older buildings near places like Hardham tend to move, and aged sealant cracks. The right product, sized to the joint, copes much better.
The price depends on the quantity of joints, what has to come out first and the access. Call for a quote once you have the details.
Why appoint us
- A range of standard colours, depending on the product
- One number for every site we cover
- Constructionline member
- Commercial sealant work since 2005
Read what affects the cost or our accreditations and insurance.
How the job changes by surface
Window and door perimeters
Internal perimeters are usually sealed with a paintable product where decorating follows. We follow what’s specified, and colour-matched products can be used where the frame is on show.
Kitchens and utility areas
On commercial kitchen fit-outs, hygienic sealants are often specified. We follow the specification and seal to a smooth, cleanable finish.
Towns and villages near Hardham
What else we do in Hardham
When it isn’t the sealant
Being straight saves everyone time. New sealant won’t cure:
- Deciding which fire-stopping product a penetration needs
- Defective windows, doors or glazing units (the supplier or installer’s job)
- Joints damaged after sign-off by following trades
If in doubt, give us a call on 01277 525 020 or use the quote form and we’ll say what we think.
Surfaces we seal
- Internal decorators’ caulk
- Sanitary and kitchen joints
- Cladding and panel joints
- Floor and skirting junctions
- Window and door perimeters
- Brick and block movement joints
Facades, frames and programmes in Hardham
Hardham is about 42 miles from central London. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, which keeps mastic packages in demand. The South East is one of the drier parts of the UK. Still, external mastic needs dry faces within the maker’s temperature limits, which isn’t every day, so we time external mastic for dry faces and agree it with the site team.
Recladding or extending a unit at a site like Station Approach Industrial Estate, 0.7 miles north-east of Hardham, brings panel joints and frame perimeters into the programme. Projects at schools like St James' CofE Primary School work to term dates, so mastic is programmed tightly. For a contractor at a hotel such as Chequers Hotel, 0.9 miles north-east of Hardham, the mastic often has to be finished before a reopening date.
Hardham is about 10 miles north of Littlehampton, in West Sussex. We send applicators to Hardham for mastic packages, handled exactly as we handle every other area. We work across 373 places in West Sussex, large and small. We also cover Brighton, some 19 miles away.
We take on mastic packages across the RH20 postcode area, for business premises of every kind. Nearby places we also cover include Coldwaltham (1 mile south-west), Pulborough (1 mile north-east), Watersfield (2 miles south-west), Fittleworth (2 miles north-west) and Lower Horncroft (2 miles west) for mastic packages. Further afield, our area takes in Horsham (12 miles north-east), Worthing (10 miles south-east), Bognor Regis (13 miles south-west), Chichester (13 miles south-west), Littlehampton (10 miles south) and Shoreham-by-Sea (14 miles south-east).
Local landmarks in Hardham
In Hardham, that means premises near The White Hart Public House and the streets around them. The closest station to Hardham is Pulborough station, roughly 0.7 miles north-east of the centre. Well-known places in the area include Amberley Museum (3.6 miles south) and Coates Castle (2.8 miles west). Green spaces nearby include Bignor Hill and Amberley Wildbrooks RSPB Reserve.
Should maintenance staff do it?
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. That’s why many clients bring in a specialist from the beginning.
A short, simple internal joint is often within reach of a maintenance team. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.