Kent · England
Commercial sealant contractors in CT17
Our applicators cover all of the CT17 postcode district, which takes in Dover, Tower Hamlets and River. Every joint is properly prepared, with a 12-month guarantee.
Need sealant work in CT17?
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Areas within CT17
What we do in CT17
- Expansion and movement joint sealing
- Construction and new-build mastic
- Commercial washroom and wet-area sealing
- Facade and window perimeter sealing
- Coloured and colour-matched sealant
- Industrial and floor joint sealing
- Mastic sealing for building owners and managing agents
- Commercial sealant contractors
- Fire-rated sealing and fire stopping
- All services
Tell us what needs doing and your postcode and we’ll come back with a price: call the office on 01277 525 020 or email a schedule or drawings.
Districts next door
Elsewhere in Kent
Every town in Kent
Every area we cover
About commercial sealant contractors in CT17
We have applied sealant on commercial sites for over 20 years: CHAS accredited, Constructionline member, five million pounds of public liability insurance and CSCS-carded applicators. If your site needs RAMS, an insurance certificate or CSCS details, say so and we’ll confirm with the quote. The enquiries we see most involve wall and floor joints that have lost their seal and layers of sealant, all of them failing, across washrooms and tea points, external facade joints and floor and threshold joints.
We follow your site rules from the start: signing in, inductions and any permit to work. Once we’re cleared to begin, the joints are worked through in the order agreed with your site contact, and each area is checked before we leave it.
- Site photographs, drawings or a visit tell us what’s there and how it has failed.
- You get a fixed quote covering removal, preparation and the new sealant.
- We agree the order of work, access windows and site hours with you.
- The failed sealant comes out and the faces are prepared, with primer where required.
- Depth is set with backing, then the sealant is applied, tooled and the area tidied.
- Completed areas are signed off with you under our 12-month guarantee.
What you’ll pay
Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. Send the details and a fixed figure follows.
Why choose Mastic Doctor
- Work to your specification and the manufacturer’s guidance
- Fixed quotes based on photographs, drawings or a visit
- 12 months’ guarantee on every job
- A Constructionline member, so easy to vet
Ask for a quote
Every job follows the same four steps: send details, get a quote, we seal, guaranteed. The first step is to call the office on 01277 525 020 or email the details over with what you know.
Local landmarks in Dover
We work on buildings around Parish Church of St Andrew Buckland, Connaught Park and St Edmund's Catholic School. Also close by are Shatterlocks Infant School (under half a mile north-west), The Bull pub (under half a mile south-west) and St Edmund's Catholic School (under half a mile south-east). The closest station to Dover is Dover Priory station, roughly 0.9 miles south of the centre. Well-known places in the area include Dover Castle (1.3 miles south-east) and Crabble Corn Mill (0.7 miles west). The countryside around Dover includes Dover Western Heights.
Shops, offices and hotels in CT17
Shop fits, office refurbishments and hotel refits in towns such as Dover, Tower Hamlets and Charlton-in-Dover all leave joints that need sealing. Where the joint is on show, a colour that suits the finish is part of the job.
All of Greater London is inside the ULEZ, and much of the South East is within easy reach of the capital, so jobs in CT17 are planned with access, loading and parking in mind. In the parts of CT17 near the sea, the elevations facing the weather are where sealant gives up first, so they’re worth inspecting more often.
Dover: Offices at parks like White Cliffs Business Park (to the north of Dover) have receptions, kitchens and glazed partitions where a tidy joint matters. Shops and cafés around stations like Dover Priory station, 0.9 miles south of Dover, trade from early, so work is timed around them.
Why it fails
Every sealant joint is a maintenance item. How long one lasts depends on the movement it takes, its exposure to sun and weather, the cleaning regime, the traffic and the product itself. On a busy commercial site several of those pile up at once, so periodic inspection matters more than any date on a schedule.
It’s worth sending us details if you spot any of the following:
- Leaks that seem to come through a sealant line
- Expansion joints with the sealant torn out
- Mouldy silicone around WCs, urinals and vanity tops
- Hardened, chalky sealant on south-facing or exposed elevations
Different surfaces, different methods
Facade and cladding joints
Panel joints on cladding and rendered facades open and close with the temperature. The product has to suit the movement, and the depth has to be controlled with backing. We confirm the access in place before we quote.
Window and door perimeters
Inside, cracked sealant around frames and window boards is common. The product depends on whether the joint will be painted.
Looking after the joints
Problems stay small when the joints are checked regularly. Specifically:
- Log reseals in the O&M or maintenance records
- Act on the first lifting edges rather than waiting
- Have extract fans checked so wet areas dry out
- Make sure contractors see the asbestos survey before cutting out old mastic
Our workmanship on each job is backed by a 12-month guarantee. File the handover note with the building records.
Sealant rarely fails all at once across a building. A few splits this year normally mean more next year. We can assess the lot and suggest what to do now and later.
Commercial clients in CT17
Hospitality, education, healthcare, office and retail clients come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.
For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, with CSCS-carded applicators on site.
What sealant work can’t fix
A few problems need another trade or a different fix, and we point that out rather than sealing over them:
- Cracking that needs a structural engineer to look at it
- Removing asbestos-containing materials (a licensed or specialist contractor’s job)
- A dripping trap, valve or pipe behind a fitting
CT17: questions and answers
Which sealant will you use?
Where there’s a specification, we use the product it names. Otherwise, we recommend a product to suit the joint’s movement, the substrate and the conditions, following the manufacturer’s guidance.
How many days will you need on site?
We plan the time on site around your programme and access. We’ll give you an estimate of time on site when we quote.
Can weather delay the job?
For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so damp, frosty or very cold days can stop external work. Internal work is rarely affected.
Do you work for facilities managers and managing agents?
Yes, and through main contractors too. We quote, schedule and report back in the way that suits your process, with a 12-month guarantee on the workmanship.
Can areas stay open during the work?
Most of the buildings we work in stay occupied. Only the area being sealed is closed, and the sequence is agreed in advance, until its cure time has passed.
Will your applicators have CSCS cards?
Yes. We use CSCS-carded applicators.
Is failed sealant stripped out, or sealed over?
Removal of the failed sealant is always part of the job. New sealant can’t grip the old bead, so laying over it never lasts, and the faces are brought back to sound, dry material before resealing.