
Mastic sealant contractors in Keycol
Mastic sealing in Keycol, backed by over 20 years in commercial sealing. Fully insured, with a 12-month guarantee.
- No planned programme for sealant
- Leaks at window and door perimeters
- Brittle perimeter mastic across a building
Mastic sealing across Keycol
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
What we can’t put right
Before quoting, we check that sealant is the right answer. It isn’t the answer for:
- Misted or failed double-glazed units
- Materials that need asbestos testing before work
- Leaks through the frame itself rather than the perimeter
If in doubt, give us a call on 01277 525 020 or use the quote form and we will say what we think before you book.
Surfaces we seal
- External wall and movement joints
- Communal entrances and stairwells
- Shopfronts below residential blocks
- Window and door perimeters on blocks
- Balcony and threshold joints
- Communal kitchens and washrooms
How we handle mastic sealing in Keycol
Our clients include managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios. Many prefer a planned programme to one-off visits, with each block quoted and scheduled in turn. The enquiries we see most involve a mix of products and colours from past repairs and window mastic that has split and shrunk, on balcony and threshold joints, communal kitchens and washrooms and external wall and movement joints. For commercial sealant work in Keycol, you deal with one contact from quote to sign-off, whether it’s one building or several.
In and around smaller places like Keycol, landlords and agents often look after small groups of housing association properties, converted farm buildings and community buildings. Mastic around frames and on external joints wears out in time, whatever the building.
Our workmanship is guaranteed for 12 months, in Keycol as everywhere else we work. If a joint we sealed fails because of how it was installed, we come back and put it right.
- Where
- Keycol (ME9)
- Wider area
- Kent
- Cover
- 12 months on our workmanship
- Quotes
- Fixed quote, scope in writing
- Telephone
- 01277 525 020
- Page updated
- 3 November 2026

FAQs: Keycol
Does the sea air around Keycol change the choice of sealant?
It can. Coastal exposure works external joints harder than inland weather. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.
Can you work at a site such as Newington Enterprise Centre, by Keycol?
Yes. Our area takes in Keycol and its surroundings, with estates and business parks such as Newington Enterprise Centre included. Photos and a short description are enough for a first look.
When is resealing likely to be due?
There isn’t a single answer, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular checks let you plan resealing before leaks or damage.
How soon can the area be used again?
Curing time varies by product, and we confirm it on the day, and sign any area that should be left alone.
What do you charge?
There isn’t a price list, as every site differs. Send photos or drawings and we will price it at a fixed figure.
Will you come and look before quoting?
That depends on the size and complexity of the job. Straightforward work can often be priced from photographs and measurements, while larger or less clear jobs get a site visit first.
Do you take on small jobs?
We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.
Doing it in-house
Putting right a botched joint often costs more than sealing it well at the start, 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.
Using site staff can make sense for a small touch-up, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.
From enquiry to sign-off
On arrival, we report to your site contact and complete whatever induction the building runs. Everything around the joints gets protected before anything is cut or cleaned, with the work itself usually taking a few days for most blocks, with larger programmes scheduled building by building. If others near Keycol need work, visits can be combined, which keeps travel down. You will have a fixed quote before work starts.
- First we look at the mastic on each building and note what needs replacing.
- We send a fixed quote that sets out the joints, the products and the programme.
- The programme is fixed with you, including dates you can pass on to residents or tenants.
- Old sealant is stripped and each face prepared back to firm material.
- Backing rod and primer go in as the joint requires, then the new bead is placed and tooled.
- Each building is checked on completion and the work carries our 12-month guarantee.
What we need from you
- Send any specification or drawings in advance
- For older buildings, check the asbestos register before work
- Tell staff and tenants when we will be in
Getting a fixed quote
The quickest route to a quote is a few photos and the site postcode. Upload them with the quote form, or call 01277 525 020 or send details through our quote form to discuss it first.
Related advice
What affects the price in Keycol
Each job is priced on its own details. The main factors are:
- Which sealant the job calls for
- The total length or number of joints
- Whether old sealant has to be cut out first
- How accessible the joints are
Every site prices differently: joint size, product, access and site hours all play a part. A fixed quote follows once we understand the job.
Sending details for a quote
However big the job, these details speed things up:
- Rough lengths or quantities, or drawings if you have them
- Your programme or deadline
- The product your specification calls for
- Photos of the joints, close up and from further back
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To start the process, call the office on 01277 525 020 or email drawings and photos.
Mastic sealing around Keycol: what changes locally
The sea is no more than about 3 miles from Keycol. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first, so it’s worth inspecting those sides more often. Keycol sits in one of the drier corners of the country, the South East. External mastic still waits for dry faces and the right temperature, and elevations facing the sun and the prevailing weather are typically where frame mastic ages first.
Blocks of flats and mixed-use buildings often cluster around stations such as Newington station, 1.1 miles west of Keycol, and their window and balcony mastic tends to age at the same rate across a building. If you’re responsible for a building such as Church of St Bartholomew, frame and door mastic needs the same attention as any other property. For owners of several units at places like Newington Enterprise Centre (1 mile north-west of Keycol), one programme can deal with frame and external mastic across the lot.
Keycol is about 2 miles west of Sittingbourne, in Kent. Anywhere in ME9, the process is the same: send details, get a fixed quote, we seal, and the work is guaranteed. Keycol is one of 931 places we cover in Kent for mastic joints. There’s a separate page for London, roughly 35 miles from Keycol.
Work on mastic joints is covered throughout ME9. We cover commercial and managed buildings on Rooks View, Hill Farm View and Rook Lane and the roads nearby. Just outside Keycol, we also work in Bobbing (1 mile east), Chestnut Street (1 mile south), Newington (1 mile west), Danaway (1 mile south-west) and Oad Street (2 miles south). Bigger towns within reach include Maidstone (9 miles south-west), Gravesend (15 miles north-west), Whitstable (15 miles east), Faversham (9 miles east), Minster (7 miles north-east) and Kings Hill (13 miles south-west).
Near you in Keycol
Locally, jobs take us to sites close to Westlands School and George Inn. The nearest railway station is Newington station, about 1.1 miles west. Other landmarks nearby include Court Hall Museum (1.8 miles east) and Bayford Court (2.3 miles east).
Why deal with it now?
Draughts round window perimeters cost occupiers comfort, and they often blame the windows. In many cases, new perimeter sealant deals with it when the frames themselves are sound. Converted and older buildings near places like Keycol tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.
The price depends on the quantity of joints, what has to come out first and how the joints are reached. Call for a quote once you have the details.
Why appoint us
- Coloured sealants to suit the setting, where available
- Colour agreed before work starts
- Matching to RAL references, product permitting
- A fixed quote before work starts
Maintenance after handover
Keep the joints in good shape with a few simple steps:
- Share your contractor requirements early
- Look at the sunniest and most exposed elevations first
- Check the asbestos register before any old mastic is disturbed
- Log resealing dates block by block
If paintable sealant was used, decoration can follow once it has cured. Non-paintable silicone shouldn’t be painted over.
Water getting in round frames can damage plaster, decoration and the frames themselves. Resealing early keeps the job small.