Hardham mastic sealing
Mastic sealing for building owners, managing agents and housing associations in Hardham. CHAS accredited and fully insured, with a 12-month guarantee.
- Window mastic that has split and shrunk
- Communal area joints that look neglected
- Draughts at frames across a block
Mastic sealing in Hardham
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Mastic sealing in Hardham
Before work starts, most agents and landlords want the documents in order. 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, with public liability insurance. The enquiries we see most involve no planned programme for sealant and worn sealant at communal door frames, across external wall and movement joints, communal kitchens and washrooms and balcony and threshold joints. Whether you call it commercial sealant work, mastic application or joint sealing, in Hardham it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.
In and around smaller places like Hardham, landlords and agents often look after small groups of housing association properties, converted farm buildings and community buildings. Frame and wall-joint mastic on all of them ages and hardens.
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.
- Place
- Hardham (RH20)
- Region
- West Sussex
- Guarantee
- A 12-month guarantee
- Quote
- Quoted before any work starts
- Telephone
- 01277 525 020
- Last updated
- 3 November 2026
Diagnose, treat, sign off
We schedule the visit to fit the site hours and access windows you give us. While we’re working, the area stays contained and tidy, and we check in with your contact before moving on to each new area. For a building around Hardham, tell us how to find it and who will meet us. Send that with the details and we will confirm the plan with the quote.
- We inspect each building and record the joints that have failed.
- You get a fixed quote, per block or for the whole programme.
- Dates and areas are agreed so occupiers can be told.
- Old mastic is removed and the joint faces prepared.
- Joints are resealed and tooled.
- Each building is checked and signed off with the 12-month guarantee.
Before we start on site
- Tell us your opening times and when work is allowed
- Send any specification or drawings in advance
- Send asbestos survey details if the building is pre-2000
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.
Related advice
Keeping the joints sound
After handover, a little attention goes a long way:
- Check the asbestos register before any old mastic is disturbed
- Group repairs into a planned programme
- Ask residents or tenants to report leaks and draughts early
- Track which buildings were done and when
Our workmanship is covered for 12 months, so report any failure in that time. Beyond that, routine checks spot the next round of repairs.
Water getting in round frames can damage plaster, decoration and the frames themselves. Resealing early keeps the job small.
What else we do in Hardham
Questions about Hardham
Is Hardham off your patch?
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.
Will you take on a block within reach of Pulborough station?
Yes. Blocks of any size are within what we do. We work to your notice and access arrangements.
Can weather delay the job?
It can, for external work. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Internal work is far less affected.
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 work can be quoted per building or as a whole.
How long do sealant joints last?
It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.
Can you seal joints high up on a block?
It depends on the building. We agree access with you at quote stage so the fixed quote reflects it.
Can you send RAMS and CSCS details before starting?
We are CHAS accredited, a Constructionline member and carry public liability insurance. Tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we will confirm with the quote.
For managing agents and facilities managers
Housing associations and managing agents often need work done across blocks and communal areas. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
For main contractors, we work as the sealant subcontractor on new-build and refurbishment projects. We work to your programme, your specification and your site rules, with CSCS-carded applicators on site.
Why it’s worth doing now in Hardham
Adding sealant to cyclical maintenance is an easy win. Leaving it until there’s a leak turns it into reactive work with less control over timing. Converted and older buildings near places like Hardham tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we’ll explain how it’s made up.
What you get with us
- Workmanship guaranteed for 12 months
- Our applicators hold CSCS cards
- Matching to RAL references, product permitting
- Constructionline member
See our cost guide and our accreditations.
Blocks and managed buildings in Hardham
At about 42 miles from central London, Hardham is within reach of the capital. Commuter-belt towns tend to have plenty of managed blocks near stations and town centres. The South East is one of the drier parts of the UK. External mastic still waits for dry faces and the right temperature, and elevations facing the sun and the prevailing weather are normally where frame mastic ages first.
Blocks of flats and mixed-use buildings often cluster around stations such as Pulborough station (0.7 miles north-east of Hardham) and their window and balcony mastic tends to age at the same rate across a building. If you’re responsible for a building such as St Botolph's Church, frame and door mastic needs the same attention as any other property. Property owners at sites such as Station Approach Industrial Estate (0.7 miles north-east of Hardham) can have mastic renewed between lettings.
Hardham is about 10 miles north of Littlehampton, in West Sussex. We send applicators to Hardham for mastic joints. Hardham is one of 373 places in West Sussex on our list for mastic joints. For work in that direction, see our Brighton page, about 19 miles away.
Business premises anywhere in RH20 are within our area for mastic joints. We also cover 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). A short drive away, we cover 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).
Around Hardham
In Hardham, that means premises near The White Hart Public House and the streets around them. Hardham’s nearest station is Pulborough station, about 0.7 miles north-east. Other landmarks nearby include Amberley Museum (3.6 miles south) and Coates Castle (2.8 miles west). Not far away are Bignor Hill and Amberley Wildbrooks RSPB Reserve.
When it isn’t the sealant
Sealant solves a lot, but not everything, and we’d rather tell you before you spend money. It won’t fix:
- Water coming in from the roof or rainwater goods
- Glazing that needs replacing
- Leaks through the frame itself rather than the perimeter
If in doubt, phone 01277 525 020 or use the quote form and we’ll say what we think before you book.
Surfaces we seal
- Balcony and threshold joints
- Shopfronts below residential blocks
- Communal kitchens and washrooms
- External wall and movement joints
- Window and door perimeters on blocks
- Communal entrances and stairwells
Quoting for work in Hardham
What shapes the price:
- The product specified
- Whether old sealant has to be cut out first
- Backing rod, priming and other preparation
- How much there is to seal
The price depends on the quantity of joints, how much old material needs removing and the access. Call for a quote when you are ready.
Before you send an enquiry
We can often quote from photographs and a few details. It helps to include:
- The site address and postcode
- What the building is and how it’s used
- The asbestos register, for older buildings
- Approximate linear metres or a joint schedule
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. Where a site visit makes more sense, we’ll arrange one.