
Commercial sealant contractors in Kennington, Kent
Commercial sealant contractors in Kennington, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.
- Frame sealant that has cracked, shrunk or pulled away
- Water staining near frames, panels or ceilings
- Wall and floor joints that have lost their seal
Commercial sealant contractors for Kennington sites
Share the site address and what’s failing, and we’ll reply with a fixed quote or arrange a visit.
Our process
Diagnose, treat, sign off: that’s the shape of every visit. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and we finish with a walk round so the work can be signed off. What matters most for a job in Kennington is a clear list of what needs doing. A fixed quote follows.
- First, details come to us: photos, drawings or a schedule of the areas, or we arrange a site visit.
- We work out why the joints have failed and fix a quote for the agreed scope.
- Before anything is cut out, we agree access, timings and sequence.
- Failed sealant is cut out and each joint cleaned back to sound, dry faces.
- We fit backing to the right depth, prime where specified and lay the new bead.
- Each area is inspected, signed off and backed by our 12-month guarantee.
What we need from you
- Share the asbestos register for older buildings
- Have the specification and drawings to hand
- Tell us what induction or permit system the site runs
Request a quote
To get a fixed quote, speak to us on 01277 525 020 or send details through our quote form, telling us the site location and the nature of the job. You can also send details through our quote form.
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Commercial mastic work in Kennington
Some sealants used before 2000 can contain asbestos, so older stock needs a check first. Before anything is cut out, we ask for the asbestos register or survey. If a material is suspected, work stops until it’s tested, and we don’t remove asbestos-containing materials ourselves. If you are dealing with a top-up bead over failed sealant, now lifting and sanitary sealant that has gone black and patchy, we can put it right. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Kennington is the same: the right product in a properly prepared joint.
In Kennington, as anywhere, the first joints to go are usually the ones that work hardest: south-facing perimeters, entrance thresholds and busy washrooms.
Around smaller places such as Kennington, small firms often work from converted barns, yards and rural units. Those conversions put new frames and partitions against old brick, stone or timber, so each joint needs a product chosen for both surfaces.
The 12-month guarantee covers our workmanship: preparation, application and finish. It doesn’t extend to damage, other trades’ later work or movement the joint was never designed to take.
- Where
- Kennington (TN24, TN25)
- Region
- Kent
- Guarantee
- A 12-month guarantee
- Quotes
- Quoted before any work starts
- Phone
- 01277 525 020
- Last updated
- 3 November 2026

Building owners, agents and FMs in Kennington
Building owners and managing agents use us on everything from one building to a spread of sites. Several sites can go on one quote, so there’s one set of paperwork to deal with.
We take on planned maintenance as well as one-off repairs: working through a building or an estate in stages that fit your budget. Kennington can form part of a wider programme across Kent.
Commercial sealant contractors in Kennington: the local picture
Kennington has plenty of hotels close by, all within 2 miles. In hotels, sealant shows everywhere, from bathroom joints to reception counters, so colour and a clean finish matter, with rooms done in turn while the rest stay let. Kennington has at least three named business or industrial parks inside a 3-mile radius. Units on sites like these change tenants and get refitted, and each refit leaves joints to seal.
Offices and shops close to stations such as Ashford International station (1.7 miles south of Kennington) tend to be busy all day, so sealant work is planned around opening hours. On a business park such as Eurogate Business Park, 0.8 miles west of Kennington, sealant work tends to follow fit-outs: receptions, tea points, washrooms and frame perimeters. For a hotel such as The Conningbrook Hotel (0.5 miles east of Kennington), the colour of a joint at the bar or the bath matters to the look of the room.
Kennington is about 2 miles north-east of Ashford, in Kent. Businesses, contractors and managing agents in Kennington use us for work on sealant joints, as part of our coverage of Kent. Kennington is one of 931 places we cover in Kent for sealant joints. Sites around London have their own page, roughly 48 miles from Kennington.
If you need commercial sealant contractors in TN24 and TN25, the process matches everywhere else we work: send details, get a quote, we seal, guaranteed. If your site is on Park Road, York Road and Ball Lane or close by, we can quote for sealant joints. With the A28 nearby, Kennington is straightforward for us to reach. Sites close to Kennington are covered too, including Bockhanger (1 mile south-west), Potters Corner (1 mile west), Boughton Lees (2 miles north), Godinton (2 miles south-west) and Willesborough (2 miles south). Further afield, our area takes in Canterbury (12 miles north-east), Sittingbourne (14 miles north-west), Folkestone (13 miles south-east), Whitstable (14 miles north-east), Faversham (10 miles north) and Hythe (11 miles south-east).
Local landmarks in Kennington
Recent enquiries here include premises near Towers School and Sixth Form Centre, Conningbrook Lakes Country Park and The Rose Inn and the streets around them. The closest station to Kennington is Ashford International station, about 1.7 miles south of the centre. Well-known places in the area include County Square (1.4 miles south-west) and William Harvey Hospital (2.1 miles south-east). Open spaces near Kennington include Hatch Park.
What we can’t put right
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Suspect materials that need testing and specialist removal
- Misted, cracked or failed glazing units (a glazier’s job)
- Cracking that needs a structural engineer to look at it
Not sure which it is? You can give us a call on 01277 525 020 or send photos by email and we’ll tell you honestly before you book.
Where we work in Kennington
- Floor and threshold joints
- Movement joints in walls and floors
- Kitchen worktops and splashbacks
- External facade joints
- Washrooms and tea points
- Window and door perimeters
Questions about Kennington
Must a hotel around Kennington close while you work?
Rarely, if ever. We take a few rooms out at a time. Tell us your quiet periods and access windows and we’ll plan around them.
Is Kennington off your patch?
No. Places such as Kennington are covered as much as the big towns. We cover Greater London and the counties of the South East. Good photographs up front let us bring everything on the first visit.
Are you CHAS accredited and on Constructionline?
Yes. We are CHAS accredited, we are a Constructionline member and we use CSCS-carded applicators.
Is the old sealant taken out first?
Removal of the failed sealant is always part of the job. Laying new silicone on old gives it nothing to grip.
Is it fine to apply new sealant on top of old?
No. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.
What do you need from us to quote?
Start with whatever information is to hand. Questions or a site visit follow where needed, then a fixed quote.
Can one contractor look after sealant on all our buildings?
Yes. We take on runs of jobs across portfolios as well as single sites.
General trades versus a specialist
A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.
The visible bead is only part of the job. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
Different surfaces, different methods
Washrooms and toilets
Around WCs, urinals, vanity tops, IPS panels and cubicles, sealant is wet most of the day. We cut out mouldy or split beads and reseal in anti-mould sanitary silicone.
Fire-rated seals where specified
Where the specification calls for fire-rated or intumescent sealant around service penetrations or linear gaps, we install it to the product’s tested detail. Fire-stopping design and sign-off sit with the designer, fire engineer or building control, and we install to the specification.
Nearby places to Kennington
What else we do in Kennington
What sets the cost
A fixed quote reflects the actual work. It takes account of:
- Removal of failed or old sealant
- The site’s rules and procedures
- Phasing around occupants
- Any access equipment needed
Whether it’s a single area or a whole estate, the same things set the price: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we will put a fixed figure on it.
What we need to price the job
A few photographs plus some basic facts will normally do. Please tell us:
- Any specification or named product
- How the joints are reached, and at what height
- Whether an asbestos survey exists
- What the building is and how it’s used
Photos, drawings or a schedule of the joints and a fixed quote comes back to you. If the job needs a look first, we will arrange a site visit.