Facade and window perimeter sealing in Kent Street, West Sussex
Commercial sealant work in Kent Street for contractors, FMs and building owners: facade joint and window perimeter sealing on commercial buildings, quoted at a fixed price.
- Damp patches beside frames after rain
- Patch repairs that keep failing
- Old perimeter mastic that has dried out
Facade sealing in Kent Street
Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.
Facade sealing for commercial buildings in Kent Street
Water ingress at window frames is a frequent reason facilities managers contact us. Very often the perimeter bead has cracked or lost its grip, though that isn’t the only cause. We’ll tell you if we think the leak is coming from somewhere sealant won’t fix. We work on window and door perimeters, cladding panel joints and shopfront frames, and what we’re called in for most is water coming in around window frames and hard, chalky sealant that no longer flexes. One point of contact handles commercial sealant work in Kent Street from the first photographs to the final walk-round, whether it’s one building or several.
Sites around smaller places like Kent Street can be a fair drive from suppliers, so we come with everything the package needs, timed to the stage the job has reached. Drawings, photos and the programme let us give a fixed quote.
Work we carry out comes with a 12-month guarantee. Should something we installed fail, call the office on 01277 525 020 or email the details over and we will come back to it.
- Where
- Kent Street (RH13)
- Wider area
- West Sussex
- Guarantee
- 12 months on our workmanship
- Price
- A fixed quote before we start
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
When it isn’t the sealant
Part of a good diagnosis is knowing where sealant stops. You will hear from us if the cause turns out to be any of the following:
- Joints too narrow for the movement they take, which need redesign
- Damp caused by condensation inside the building
- Damaged frames that need replacing
If you’re not sure, just ring 01277 525 020 or use the quote form and we will give you a straight answer.
What we seal
- Coping and flashing joints
- Stone and brick facade joints
- Shopfront frames
- Window and door perimeters
- Perimeter joints where frames meet the structure
- Cladding panel joints
Your questions answered
Is a hospital such as The Dene Hospital somewhere you can work?
Yes. We work in healthcare settings as well as offices and schools. We follow the site’s permits, sign-in and infection-control procedures in every area.
Does your area include sites such as Oakendene Industrial Estate, near Kent Street?
Yes. Estates, retail parks and business parks around Kent Street, Oakendene Industrial Estate among them, are all within reach. To start, just ring 01277 525 020 or email a schedule or drawings with the unit, the joints involved and your access times.
Can you handle several sites?
Yes. Several buildings can share a single quote, and you deal with one contact throughout across South East England, Greater London and Scotland.
Do you work in Kent Street?
Yes. We cover Kent Street. To discuss a job, give us a call on 01277 525 020 or email drawings and photos.
What type of sealant goes on window perimeters?
Low-modulus, neutral-cure silicone suits many facade and perimeter joints. Hybrid or MS polymer, polyurethane and polysulphide sealants suit others, depending on the substrate and the specification.
Who decides which product is used?
If the job is specified, we follow the specification. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.
How much does the work cost?
There isn’t a price list, as every site differs. Send photos or drawings and we will price it at a fixed figure.
When to bring in a specialist
Site maintenance staff can often handle a short internal joint. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.
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. For that reason, many FMs and contractors use a sealant specialist from the outset.
What we’re called out for in Kent Street
When the sealant tears down its centre, it has usually been asked to move more than it can. Too thin a bead, too narrow a joint or a product with the wrong movement class are common reasons.
What tends to prompt an enquiry:
- Failed seals around shopfront and entrance frames
- Patch repairs that keep failing
- Leaks at window and door perimeters
- Hard, chalky sealant that no longer flexes
When units on a site such as Oakendene Industrial Estate (0.8 miles north of Kent Street) are refurbished or reclad, the panel joints and window perimeters are part of the mastic package.
What your quote should include
- Proof of insurance
- Their plan for phasing and protecting the area
- Whether primer will be used where the manufacturer specifies it
- Their approach to joint depth and backing
Nearby places to Kent Street
Other services in Kent Street
After the work
Sealant joints are maintenance items, and how long they last depends on how they’re treated. We suggest:
- Investigate damp beside windows promptly
- Avoid patch repairs on failed facade joints
- Keep the sealant details on the building file
- Ask about asbestos in pre-2000 mastic
Include facade joints in your planned maintenance inspections. Watch for splits, gaps at the edges, hardening and discolouration; record the locations.
Use each reseal to correct the joint: correct depth, proper backing and a sealant that can take the movement. Repeating a faulty detail just repeats the failure.
Mastic packages on Kent Street sites
Kent Street lies roughly 37 miles out from central London. Commuter-belt towns tend to see a steady flow of new flats, offices and commercial schemes, and main contractors there need mastic that keeps to the programme. Kent Street sits in one of the drier corners of the country, the South East. That doesn’t stop wet spells, or frosty starts that leave panels too damp to seal, which is why external dates are agreed with the site manager.
On a healthcare site such as The Dene Hospital, which lies east of Kent Street, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully.
Kent Street is about 5 miles west of Burgess Hill, in West Sussex. Any commercial site in Kent Street is covered, whether it’s a single job or part of a planned programme. Kent Street is one of 373 places in West Sussex on our list for facade joints. Our Brighton page has more on work in that area, about 11 miles away.
We cover the RH13 postcode districts for facade joints. We also 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) for facade joints. A short drive away, we cover 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
Other landmarks nearby include The Dene Hospital (3.8 miles east). Open spaces near Kent Street include Knepp Wildland.
Our process
The first thing on site is a walk round with your contact, agreeing which joints are in scope, where to start and what must stay open. Then we strip out anything that has failed, prepare every joint and seal it. Jobs in and around smaller places like Kent Street are normally planned as a single visit, so we ask for photos and rough sizes first. Then the right materials arrive with us.
- Photos, drawings or a visit tell us about the joints and the access.
- We confirm the joint type, movement and the specified product.
- Failed beads are removed in full and both faces cleaned back.
- Primer is applied where the maker specifies it.
- Backing rod is fitted and the new sealant gunned in and tooled.
- The finished joints are checked with you.
Before we start on site
- Send asbestos survey details if the building is pre-2000
- Move anything stored against the joints
- Tell us your opening times and when work is allowed
Getting a fixed quote
Send us photos, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.
Related advice
Building owners, agents and FMs in Kent Street
As a CHAS accredited contractor and Constructionline member, we’re straightforward to vet for your supplier list. We’re fully insured, and our insurance certificate can go with the quote.
We work for building owners and managing agents on sealant work across single buildings or whole portfolios. One quote can cover more than one site, so there’s one set of paperwork to deal with.