Sevenoaks & district — domestic & commercial
Silicone Sealant Applicatorsin Sevenoakssealed properly, first time
From Victorian villas off the Vine to new-build estates at Dunton Green and office refurbishments around the station, we seal joints that stay watertight, stay flexible and stay looking like they were meant to be there.
Free fixed quotes in writing, £2m public liability cover, CITB and CSCS accredited, RAMS on request.
£2m cover
public liability insurance
CITB & CSCS
accredited on site
RAMS on request
for commercial jobs
Free quotes
photo quotes on small jobs
Mon–Sat, 7am–7pm
Sunday closed
Sevenoaks coverage
Sealant work in Sevenoaks,
done by people who know it
We are based at The Historic Dockyard in Chatham, roughly 25 miles west of Sevenoaks. That is a straightforward run along the A20 and M26, or the M2 and M25, which means Sevenoaks sits comfortably inside our normal working day — no overnight costs, no travel premium and no reason to bundle your job in with three others to make the trip worthwhile.
We genuinely cover Sevenoaks
Sevenoaks is one of our regular working areas rather than a postcode we have added to a list. We work across the town itself and the surrounding villages — Riverhead, Dunton Green, Otford, Kemsing, Seal, Chipstead, Weald and Sundridge — as well as the business space around Sevenoaks station and the A25 corridor.
Because we are a two-person owner-run team, the person who quotes your Sevenoaks job is the person who turns up to do it. There is no subcontracting on and no unfamiliar face arriving on the day, which matters when you are letting someone into a family bathroom or onto a live commercial floor.
Getting to you, and how quickly
Our working week runs Monday to Saturday, 7am to 7pm, and Sevenoaks is close enough to Chatham for an early start without a 5am alarm — useful on commercial jobs where sealing has to happen before an office fills up, or on domestic work where a bathroom needs to be usable again by the evening.
For small domestic jobs, photographs of the joint and a rough measurement are usually enough for us to quote without a site visit, which removes a whole appointment from the process. For larger or commercial work we come out, measure properly and price from what is actually there.
Property types we know here
The Sevenoaks housing stock is unusually varied for its size: Victorian and Edwardian villas in the streets around the town centre and St Johns, substantial inter-war detached houses on the ridge, Wealden cottages and converted oasts in the surrounding villages, 1960s and 70s estates, and a steady supply of new-build and barn-conversion work around the district.
That variety changes the sealant work. A tile-hung Wealden elevation needs a different approach to a rendered inter-war bay; a listed sash window in a conservation area needs a neutral-cure product and a discreet bead rather than a thick white line; and a new-build bathroom with large-format porcelain needs a colour-matched joint that reads as part of the tiling rather than an afterthought.
What Sevenoaks actually calls us for
The most common domestic request is resealing bathrooms and kitchens — cutting out blackened, split or lifting silicone around baths, shower trays, wet room formers and worktops, prepping the substrate properly and resealing with an anti-mould product. It is the job most often done badly by someone else first.
Beyond that: window and door perimeter sealing on draughty period frames, external joints and movement joints on extensions and garden rooms, and commercial packages on office refurbishments and school works — expansion joints, floor and wall junction mastic, and acoustic sealing to new partitions.
Areas & districts covered
Sevenoaks town centre · St Johns · Riverhead · Dunton Green · Otford · Kemsing · Seal · Chipstead · Sundridge · Weald · Bessels Green · TN13 · TN14 · TN15
Services in Sevenoaks
Every sealant service we offer,
available across Sevenoaks
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Bathroom, wet room & kitchen sealing in Sevenoaks
Blackened or lifting silicone cut out and replaced with anti-mould product, colour-matched to your grout — bathrooms usable again the same evening in most cases.
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Sealant replacement — removal & reseal in Sevenoaks
Full removal rather than a bead over the top, which is what most failed Sevenoaks resealing jobs turn out to be when we open them up.
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Window & door silicone sealing in Sevenoaks
Perimeter sealing to period sashes, casements and modern units, cutting the draughts that make older Sevenoaks houses expensive to heat.
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External silicone sealant in Sevenoaks
Weatherproof external joints on tile-hung, rendered and brick elevations, specified for exposure on the Greensand ridge.
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Colour-matched silicone sealant in Sevenoaks
Beads matched to grout, stone, timber or frame colour so the joint disappears — important in conservation areas and high-spec renovations.
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Anti-mould sealant in Sevenoaks
Mould-resistant products for family bathrooms and en suites that see heavy morning use and limited ventilation.
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Commercial silicone sealant application in Sevenoaks
Sealant packages for office refurbishments and school works around Sevenoaks, worked to your programme with RAMS issued on request.
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Expansion joint sealing in Sevenoaks
Correctly sized and backed movement joints on extensions, new builds and commercial structures that flex instead of splitting.
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Floor line & wall joint mastic in Sevenoaks
Consistent mastic lines to floor and wall junctions across offices, schools and larger commercial areas.
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Acoustic sealant in Sevenoaks
Partition perimeters and penetrations sealed so meeting rooms and classrooms hit the sound performance they were specified for.
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Cladding & curtain walling sealing in Sevenoaks
Facade and curtain walling joints sealed to line and detail, worked from the scaffold or MEWP on site.
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Swimming pool & leisure sealant in Sevenoaks
Chlorine-resistant sealing to pool surrounds and wet leisure areas — common on larger Sevenoaks properties and leisure facilities.
Why us in Sevenoaks
A specialist trade,
not a general builder
Sealant is all we do
We are not builders who also point joints. Sealant and mastic application is the whole trade, which is why the beads look the same on the last run as the first.
25+ years on the tools
Over twenty-five years of applying sealant across domestic and commercial work in Kent and London, including the awkward substrates that catch general trades out.
£2m public liability cover
Two million pounds of public liability insurance in place before we start, with evidence sent over for site or managing-agent files.
CITB & CSCS accredited
Site-ready accreditation for commercial work in and around Sevenoaks, with RAMS issued on request ahead of induction.
Fixed written quotes, free
You get a fixed price in writing with the products named. No day rates, no open-ended pricing and no charge for the quote itself.
The same two people, every time
An owner-run two-person team. Nothing is subcontracted out, so the standard you were quoted is the standard that turns up in Sevenoaks.
Local conditions
What actually fails
on Sevenoaks buildings
Period frames and moving timber
A large share of Sevenoaks housing predates the Second World War, and much of it still has timber windows and doors. Timber moves seasonally, and a hard, high-modulus sealant applied to a moving frame will split along one edge within a year or two, leaving a channel that funnels water straight into the joinery it was supposed to protect.
We use low-modulus products at these interfaces and size the joint so the sealant can stretch. On listed and conservation-area properties in the town centre and villages we keep beads discreet and use neutral-cure products that will not attack paint finishes or stain adjacent stone.
Greensand ridge exposure and driven rain
Sevenoaks sits high on the Greensand ridge, and elevations facing south and west take significant wind-driven rain. Combined with strong UV loading on those same faces, exposed external sealant ages faster here than on a sheltered urban terrace — crazing, hardening and detaching from one side of the joint.
The fix is not more sealant. It is UV-stable, correctly sized joints with backing rod controlling depth, applied to clean, dry substrates so the bond actually forms. That is what turns a three-year repair into a fifteen-to-twenty-year detail.
Tile-hung, weatherboarded and rendered elevations
The Wealden vernacular around Sevenoaks — tile hanging, weatherboarding, render over brick — creates a lot of junctions where dissimilar materials meet, and those junctions are where water gets in. Each substrate absorbs, moves and holds moisture differently, so a single product used everywhere is guaranteed to fail somewhere.
We match product to substrate: primer where the manufacturer calls for it on porous stone or timber, flexible low-modulus silicone at movement-prone interfaces, and mastic where a paintable finish is needed to match decoration.
High-spec bathrooms sealed at the wrong stage
Sevenoaks sees a great deal of renovation work, and bathrooms are where sealant most often gets rushed. Silicone applied over dusty tile edges, into a joint that was never cleaned out, or on top of an old bead, will lift within months regardless of how good the tiling is.
We cut out completely, clean and dry the substrate, and reseal with an anti-mould or colour-matched product chosen for that finish. On new installations we ask to come in after tiling and before first use, which is when the joint can actually be formed properly.
How a job runs
The same order of work,
every job in Sevenoaks

- 01
Call, email or send photos
Tell us the job and the address. Photos or drawings are usually enough to price small and mid-sized work.

- 02
Free quote in writing
A fixed written price with the products named — no day-rate guessing and no pressure to commit.

- 03
Booked to suit the site
A date agreed around your access, trades or household, inside our Monday to Saturday, 7am to 7pm window.

- 04
Preparation first
Old sealant cut out, substrates cleaned and dried, backing rod fitted where the joint needs depth control.

- 05
Sealed, tooled, cleared up
Continuous beads tooled to profile, edges cleaned off, and the area left tidy with cure times explained.

Questions
Sevenoaks sealant questions,
answered straight
Do you cover Sevenoaks?
Yes — Sevenoaks town and the surrounding villages including Riverhead, Dunton Green, Otford, Kemsing, Seal, Chipstead, Sundridge and Weald. We are based in Chatham, around 25 miles away, so it is a normal working-day journey for us.
How quickly can you get to Sevenoaks?
Sevenoaks is roughly a 40 to 50 minute drive from our Chatham base via the M20/M26 or M2/M25, so we can be with you early in the day. We work Monday to Saturday, 7am to 7pm. Actual booking dates depend on our current workload — call and we will tell you honestly what is available rather than promise a slot we cannot hold.
What does sealant work cost in Sevenoaks?
Every job is priced individually and quoted free, as a fixed price in writing, because cost depends on the length of the runs, the amount of old sealant to remove, access and the product specified. There is no Sevenoaks travel surcharge. For small jobs, send photographs and rough measurements and we can usually quote without visiting.
Do you offer emergency or same-day work in Sevenoaks?
We are not a 24-hour emergency service. We work Monday to Saturday, 7am to 7pm, and if a leak-related reseal is urgent we will tell you straight away whether we can fit it in rather than leaving you waiting.
Do you work on listed and conservation-area properties?
Yes. Much of central Sevenoaks and the surrounding villages falls into conservation areas. We use neutral-cure products that will not attack coatings or stain stone, keep beads discreet, and colour-match to the existing finish.
Can you quote from photographs?
For most domestic bathroom, kitchen and window jobs, yes. Send clear photos of the joints and a rough length and we will come back with a fixed written price. Commercial and external work at height we prefer to measure on site.
Do you have insurance and site accreditation?
Yes — £2 million public liability cover, plus CITB and CSCS accreditation, with RAMS issued on request for commercial sites. We send documentation over before induction so nothing holds up your start.
Do you give a guarantee on your sealant work?
We do not advertise a guarantee. What we do is specify the right product, prepare the substrate properly and size the joint correctly, which is what actually determines how long a bead lasts. We will tell you plainly what life to expect from the detail you are paying for.
Which sealant brands do you use?
Established trade products from Mapei, Illbruck, CT1 and Arbo, selected for the substrate and exposure. The product is named on your quote so you know exactly what is going into the joint.
Can you work around our household or tenants?
Yes. We plan bathroom and kitchen resealing so the room is out of use for the shortest time possible, protect finishes, clear up fully and explain cure times before we leave.
Nearby areas we also cover
- Sealant in Tunbridge Wells
Georgian and Victorian villas, sandstone detail and high-spec bathroom work across Royal Tunbridge Wells.
- Sealant in Kings Hill
Modern office campuses, curtain walling and 1990s-onward housing on the former West Malling airfield.
- Sealant in Maidstone
County-town commercial work, ragstone and river-valley properties, plus new-build estates across Maidstone.
- Sealant in Meopham
North Downs village property, large detached homes and chalk-hillside exposure around Meopham.
Free estimate
Get a free fixed price for your Sevenoaks sealant work
Send photographs of a bathroom or window joint, or drawings for a commercial package, and we will come back with a fixed written quote naming the products. No charge for the quote and no travel premium for Sevenoaks.
Mon–Sat, 7am–7pm · Sunday closed · spsilicone@mail.com · Based at The Historic Dockyard, Chatham, Kent ME4 4QX












