
Rowfant mastic sealing
Sealant work in Rowfant for main contractors, managing agents and facilities managers: mastic sealing for building owners, managing agents and housing associations, quoted at a fixed price.
- Complaints coming in block by block
- The same joint failures repeated across a portfolio
- Worn sealant at communal door frames
Mastic sealing in Rowfant
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
How we handle mastic sealing in Rowfant
Older blocks and commercial buildings can have mastic that contains asbestos. Before we disturb it, we ask to see the asbestos register or survey, and work stops for testing if there’s any doubt. We don’t remove asbestos-containing materials. Most enquiries involve open joints in brickwork or panels and damaged joints in communal entrances and corridors, across shopfronts below residential blocks, external wall and movement joints and balcony and threshold joints. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Rowfant is the same: the right product in a properly prepared joint.
For owners with a single building near Rowfant, we plan to finish in one visit where possible. Send photographs of the frames and joints and we will give a fixed quote.
What our 12-month guarantee covers is the way we did the job: the preparation, the sealing and the tooling. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Location
- Rowfant (RH10)
- Wider area
- West Sussex
- Cover
- 12 months on our workmanship
- Quote
- Quoted before any work starts
- Phone
- 01277 525 020
- Page updated
- 3 November 2026

Mastic sealing around Rowfant: what changes locally
Rowfant lies roughly 26 miles out from central London. Around the capital’s commuter belt, managing agents look after many blocks close to stations and town centres; their frame mastic often ages block-wide. 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 usually where frame mastic ages first.
If you own or manage units on a site such as Rowfant Business Centre, less than half a mile to the south of Rowfant, failed mastic on frames, door surrounds and external joints can be dealt with unit by unit. With historic buildings such as Gravetye Manor, 2.7 miles to the south-east of Rowfant, in the wider area, owners of older properties around Rowfant should expect mastic to need a product that suits old masonry.
Rowfant is about 4 miles east of Crawley, in West Sussex. Anywhere in RH10, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Across West Sussex, 373 places are covered, Rowfant among them. For work in that direction, see our Brighton page.
We cover the RH10 postcode districts. Close to Rowfant, our area also takes in Copthorne (2 miles north-west), Worth (2 miles west), Pound Hill (2 miles west), Maidenbower (2 miles south-west) and Keeper's Corner (2 miles north). Nearby towns on our patch include Crawley (4 miles west), Horsham (10 miles west), Haywards Heath (8 miles south), Burgess Hill (11 miles south), East Grinstead (4 miles east) and Broadfield (5 miles west).
Local landmarks in Rowfant
For rail, the closest station is Three Bridges station, roughly 2.6 miles west of the centre. A little further out are County Mall (3.6 miles west) and Langley Green Hospital (4 miles west). Green spaces nearby include Hedgecourt Lake.
What we can’t put right
Not every problem is a sealant problem, and we’d rather tell you before you spend money. It won’t fix:
- Misted or failed double-glazed units
- Cracked or crumbling render, brick or stone at the joint edges (we will tell you if so)
- Water coming in from the roof or rainwater goods
If in doubt, phone 01277 525 020 or send details through our quote form and we’ll say what we think.
Surfaces we seal
- Window and door perimeters on blocks
- Communal kitchens and washrooms
- Shopfronts below residential blocks
- Communal entrances and stairwells
- External wall and movement joints
- Balcony and threshold joints
Rowfant: questions and answers
Is Rowfant off your patch?
No. Places such as Rowfant are covered as much as the big towns. We cover Greater London and the counties of the South East. Send photos and a list of what needs doing, and we’ll plan the job to need as few trips as possible.
Will you take on a block within reach of Three Bridges station?
Yes. Managing agents, landlords, property factors and housing associations are who this service is for. Send the address, photos of the elevations and your access arrangements, and we’ll give a fixed quote.
Do you work to architects’ specifications?
Yes. Include it with the drawings when you ask for a quote, and the quote will be based on it, flagging anything that needs clarifying.
Do you check for asbestos in old sealant?
We don’t remove asbestos-containing materials. If old sealant is suspected, work stops until it’s tested, and the duty to manage asbestos sits with the dutyholder.
When is resealing likely to be due?
Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.
Is mastic sealing guaranteed?
Every building we reseal has a 12-month guarantee. It covers our workmanship, not later building movement, damage or frame failures.
Can you seal joints high up on a block?
It depends on the building. We agree access with you at quote stage so there are no surprises.
What happens if it’s left?
Dealing with failed joints one report at a time is slow and scattered. Planned resealing covers a whole building or estate in one go and is simpler to manage and budget. For buildings around smaller places like Rowfant, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.
The price depends on the quantity of joints, how much old material needs removing and the access. Call for a fixed quote when you’re ready.
Why clients in Rowfant choose us
- Coloured sealants to suit the setting, where available
- Work carried out by CSCS-carded applicators
- Joints cleaned back to sound surfaces
- Products installed to the manufacturer’s instructions
Read how commercial sealant jobs are priced or our accreditations.
What affects the price in Rowfant
Before we quote, we look at:
- Location, for remote and island sites
- Induction, permit and paperwork requirements
- Quantities, in metres or numbers
- Whether the work must be split into stages
The specified product makes a difference, as does the preparation each joint needs, from cutting out to priming and backing rod. Access, phasing and site requirements come into it too.
Before you send an enquiry
There’s no need for a formal survey. A few details are enough to get going:
- Asbestos survey details if the building is older
- How the joints are reached, and at what height
- A wide shot and a close-up of the area
- Any dates the work must fit around
Specifications, drawings and tender packages are welcome with any enquiry, and we will price the work to it. For smaller jobs, photos and a description will do.
On site: what to expect
Working in a building that stays open takes some planning. We sign and contain the area we are in, with routes through the building left open and work section by section so the rest of the building stays in use. Jobs in and around smaller places like Rowfant are typically planned as a single visit, so we ask for photographs and rough sizes first. That way the right products come on the day.
- A building-by-building inspection lists the failed joints.
- 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.
- New sealant goes in with backing rod and primer where needed.
- We check the finished work and confirm the guarantee.
What we need from you
- Let building users know which areas are affected
- Have the specification and drawings to hand
- Make sure the joints can be reached
Request a quote
A handful of photographs 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 email a schedule or drawings to discuss it first.
Related advice
Common problems we fix in Rowfant
Much failed sealant was laid on dirty, dusty or damp surfaces. Where the faces weren’t cleaned or primed as specified it comes away from one face.
If one of these sounds familiar, it’s time for a closer look:
- Old repairs sealed over failed mastic
- Movement joints with sealant missing
- Complaints coming in block by block
- Estate-wide sealant that is simply worn out
Trustees of buildings like All Saints Parish Church can bring frame and external mastic into a planned maintenance list.
Comparing quotes
- How they’ll work around occupants
- Are they CHAS accredited or on Constructionline?
- Whether their applicators hold CSCS cards
- Is depth set with backing rod, or bond-breaker tape in shallow joints?
Places near Rowfant
Other services in Rowfant
For managing agents and facilities managers
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.
Facilities managers want contractors who arrive with the paperwork sorted. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we’ll confirm them with the quote.