
Commercial sealant contractors in Kent Street, West Sussex
Sealant work for offices, shops, hotels and other commercial buildings across Kent Street, by CSCS-carded applicators. Fully insured and CHAS accredited.
- Frame mastic that has hardened and come away from the wall
- Shrunken sealant along kitchen worktops and splashbacks
- Movement joints packed with grit and debris
Commercial sealant contractors across Kent Street
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Commercial sealant contractors in Kent Street
Most commercial buildings carry hundreds of metres of sealant that nobody thinks about until it fails, and in an occupied building failure normally announces itself as a stained ceiling or an unhappy tenant. Mastic Doctor works as a commercial sealant contractor for facilities managers, managing agents and main contractors looking after property in Kent Street. Our job is to diagnose the failure, remove the old bead and seal again using a product chosen for the movement and exposure. If you’re dealing with messy, uneven beads from earlier work that let the building down and leaks that seem to come through a sealant line, we can put it right, whatever the surface. Facilities teams, main contractors and managing agents in Kent Street tend to want the same three things: a fixed quote, no surprises on site and a 12-month guarantee behind the result.
In an occupied building in Kent Street, the job is planned so areas stay in use: we agree the order with you and hand back each area with its cure time.
A job in a smaller place like Kent Street is typically a single building. We will want a full list and photos first, so the right products come on the day and nothing waits for a second trip.
The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we spell out the cover before we begin.
- Where
- Kent Street (RH13)
- Region
- West Sussex
- Guarantee
- 12 months on our workmanship
- Quotes
- A fixed quote before we start
- Phone
- 01277 525 020
- Updated
- 3 November 2026

Sealant on show in Kent Street’s commercial buildings
Rainfall across the South East, Kent Street included, is lower than in many parts of the UK. External joints still need dry faces and the right temperature, and damp or frosty mornings can hold work up. Kent Street is about 37 miles from central London. Business parks and retail centres are common around the capital’s motorway corridors. Occupiers with several premises in the region tend to prefer one contractor and one point of contact.
If you have premises on more than one site, say at Oakendene Industrial Estate and Brook Farm Business Park, one contractor and one quote can cover both. Industrial estates such as Oakendene Industrial Estate, 0.8 miles to the north of Kent Street, have offices, trade counters and welfare areas whose sealant ages like any other building’s.
Kent Street is about 5 miles west of Burgess Hill, in West Sussex. Kent Street sits inside our coverage and the rest of West Sussex, with the same fixed quotes and 12-month guarantee as everywhere else. Our West Sussex coverage takes in 373 places, from busy centres to rural villages. Our Brighton page has more on work in that area (11 miles or so).
We take on sealant joints across the RH13 postcode area, whatever the building. If your building is just outside Kent Street, we cover Wineham (1 mile south-east), Cowfold (1 mile north-west), Twineham Green (2 miles east), Shermanbury (2 miles south-west) and Twineham (2 miles south-east). Nearby towns on our patch include Crawley (10 miles north), Horsham (7 miles north-west), Worthing (12 miles south-west), Haywards Heath (7 miles east), Burgess Hill (5 miles east) and East Grinstead (15 miles north-east).
Landmarks near Kent Street
Well-known places in the area include The Dene Hospital (3.8 miles east). For a walk, there’s Knepp Wildland.
Keeping the joints sound
Sealant joints are maintenance items, and their life depends on movement, exposure, cleaning and use. We suggest:
- Report cracked or peeling sealant early
- Check the asbestos register before anyone disturbs old sealant in an older building
- Have extract fans checked so wet areas dry out
- Check sealant as part of routine building inspections
Later works are the usual way new joints get damaged. When fittings are moved or cabling added, the sealant nearby is easily disturbed and the joint gets left open. If that happens, phone 01277 525 020 or email the details over and we will price putting it right.
Sealant rarely fails all at once across a building. The first failures are often a warning about the rest so the whole run is worth inspecting. We can assess the lot and suggest what to do now and later.
Commercial clients in Kent Street
Blocks and communal areas make up much of the work for housing associations and agents. Work can be phased so residents and staff keep access throughout, and each stage is agreed with your contact.
We take on planned maintenance as well as one-off repairs: resealing failed joints building by building, on a schedule that suits your budget. Kent Street can form part of a wider programme.
Honest limits
Honesty saves time and money. New sealant won’t cure:
- Leaks from pipework, wastes or valves (that’s plumbing)
- Removing asbestos-containing materials (a licensed or specialist contractor’s job)
- Faulty windows rather than failed perimeter sealant
If you’re not sure, just give us a call on 01277 525 020 or use the quote form and we will give you a straight answer.
What we seal
- Floor and threshold joints
- Window and door perimeters
- Movement joints in walls and floors
- Kitchen worktops and splashbacks
- Washrooms and tea points
- External facade joints
Towns and villages near Kent Street
What else we do in Kent Street
Diagnose, treat, sign off
We schedule the visit to fit the site hours and access windows you give us. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. For a building around Kent Street, tell us how to find it and who will meet us. Send that with the details and we’ll confirm the plan with the quote.
- Send details through our quote form, or ask for a site visit.
- The cause is diagnosed and the scope priced as a fixed quote.
- Where parts of the building must stay open, the work is phased.
- Every failed bead is removed rather than covered.
- A suitable product for each joint goes in at the right depth and is tooled.
- We check the work with you, and the 12-month guarantee starts.
Before we start on site
- Tell staff and tenants when we’ll be in
- Arrange parking or a loading space
- Let us know about inductions and permits
Quotes
We quote a fixed sum against the scope you give us, so you know the figure before anyone is on site. To ask for one, call the office on 01277 525 020 or send photos by email.
Advice
Common questions from Kent Street clients
Is Kent Street too small for you to travel to?
Not at all: smaller places are covered as well as towns. We cover Greater London and the counties of the South East. Send photographs and a list of what needs doing, and we will plan the job to need as few trips as possible.
Do you offer colour-matched sealant for buildings in Kent Street?
Yes. Colour matching to frames, cladding, stone and shop-fit finishes is a regular part of the work. Available colours for the product are confirmed with the quote.
How do we get a quote?
Price depends on joint lengths and widths, how much removal is involved, the product, access and phasing. To get a fixed price, send details through our quote form, or phone or email us.
Which sealant will you use?
The specification comes first, if there is one. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
Are your applicators CSCS-carded?
Yes. Should the site need card details in advance, let us know and we will send them with the quote.
Does the weather affect the work?
For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.
Are you CHAS accredited and on Constructionline?
Yes. Mastic Doctor is CHAS accredited and a Constructionline member, which helps with supplier vetting.
How the job changes by surface
Facade and cladding joints
Panel joints on cladding and rendered facades open and close with the temperature. They need a sealant with the right movement capability, laid at the right depth. Access, such as scaffold already up, is agreed before the price is fixed.
Washrooms and toilets
Mould that has grown into washroom sealant can’t typically be cleaned out. The lasting answer is removal, preparation and a new sanitary bead.
Leave it or put it right?
Before budgeting for new frames, cubicles or worktops, check whether it’s just the sealant. Often the fitting is sound and the joint is the only thing letting it down. A careful reseal is a far smaller undertaking than replacement. Converted and older buildings near places like Kent Street tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.
No two sites price the same: 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
- Standard and matched colours in many product ranges
- Health and safety: CHAS accredited
- Old sealant cut out, never sealed over
- Specification-led, product-correct work
Read what affects the cost or our accreditations.