Guston mastic sealing
Mastic sealing for building owners, managing agents and housing associations in Guston and across Kent. CHAS accredited and fully insured, with a 12-month guarantee.
- Damp patches beside frames
- The same joint failures repeated across a portfolio
- Occupiers reporting cold air round windows
Mastic sealing near Guston
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Mastic sealing for commercial buildings in Guston
For over 20 years we have resealed joints for owners, agents and landlords. Every applicator holds a CSCS card and we hold public liability insurance. Each building we complete carries a 12-month guarantee on our workmanship. If you’re dealing with failed external movement joints and the same joint failures repeated across a portfolio, we can help, on window and door perimeters on blocks, external wall and movement joints and shopfronts below residential blocks alike. Facilities teams, main contractors and managing agents in Guston tend to want the same three things: a clear scope, tidy work and joints that don’t fail again.
In and around smaller places like Guston, landlords and agents often look after small groups of housing association properties, converted farm buildings and community buildings. Frame and wall-joint mastic on all of them ages and hardens.
We stand by our work with a 12-month guarantee. That covers our preparation and application.
- Place
- Guston (CT15)
- Region
- Kent
- Guarantee
- 12 months on every job
- Price
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Last updated
- 3 November 2026
Do you need mastic sealing in Guston?
Frames, panels and masonry expand and contract through the year, and the sealant takes up that movement. If the joint or the product wasn’t suited to the movement, it splits and fails early.
Typical triggers for a call:
- Complaints coming in block by block
- Worn sealant at communal door frames
- Cracked, hardened mastic round windows on a block
- Failed external movement joints
Blocks of flats and mixed-use buildings often cluster around stations such as Martin Mill station, 1.6 miles north-east of Guston, and their window and balcony mastic tends to age at the same rate across a building.
Questions to ask before you book
- Their approach to joint depth and backing
- Whether old or failed sealant will be cut out, not overlaid
- The named product and why it was chosen
- Health and safety accreditation such as CHAS
On site: what to expect
In a busy building, the work is phased so only one area is out of use at a time. Each section is protected, cleaned back and sealed, then handed back before the next one starts. For a building around Guston, tell us how to find it and who will meet us. Add it to your enquiry and we will build it into the plan.
- We check the asbestos register for older buildings and look at the joints.
- The products and programme are set out in a fixed quote.
- We strip out the old sealant.
- The joints are prepared and resealed with the right product.
- We finish each building before moving to the next.
What we need from you
- Send any specification or drawings in advance
- Send your site hours and access windows
- Point out any areas we must not close
Getting a fixed quote
For a fixed quote, call 01277 525 020 or email a schedule or drawings, telling us the site location and the nature of the job. You can also send details through our quote form.
Related advice
For owners and agents in Guston
With the shore within about 2 miles, Guston counts as a coastal location. For owners and agents with buildings near the sea, exposed elevations are where frame mastic fails first, and they deserve more regular inspection. The South East is one of the drier parts of the UK. Outside mastic still needs a dry joint and the right temperature, and the sunniest, most exposed sides of a building typically need attention first.
If you are responsible for a building such as Church of St Martin of Tours, frame and door mastic needs the same attention as any other property. Landlords with units on estates such as White Cliffs Business Park (to the west of Guston) can bring frame, door and external mastic across several units into one programme.
Guston is about 2 miles north-east of Dover, in Kent. If you’re looking for mastic sealing in Guston, we can help, as we do across Kent. We work across 931 places in Kent. Sites around London have their own page, about 66 miles away.
Commercial sites across CT15 are covered. Buildings on The Street, Chance Meadow and The Lane are within our area. Close to Guston, our area also takes in East Langdon (1 mile north-east), Church Whitfield (1 mile north-west), West Cliffe (1 mile east), Martin Mill (2 miles north-east) and Charlton-in-Dover (2 miles south-west). A short drive away, we cover Canterbury (14 miles north-west), Folkestone (8 miles south-west), Ramsgate (13 miles north), Broadstairs (15 miles north), Deal (5 miles north-east) and Hythe (12 miles south-west).
Around Guston
Locally, jobs take us to sites close to Connaught Park, St Edmund's Catholic School and Swingate Inn. The nearest railway station is Martin Mill station, roughly 1.6 miles north-east. Well-known places in the area include Royal Victoria Hospital (1.9 miles south) and Dover Castle (1.8 miles south). For a walk, there’s Dover Western Heights.
What the job involves on each surface
Window and door perimeters on blocks
We typically work through a block’s windows in a planned order. How each joint is reached is agreed at quote stage.
Estate-wide resealing programmes
Consistent products and colours across an estate make future maintenance simpler and easier to manage.
Commercial clients in Guston
Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Guston. Several sites can go on one quote, so there’s one set of paperwork to deal with.
FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.
Your questions answered
Does a coastal location like Guston affect which sealant is used?
It can. Wind-driven rain and, closer to the shore, salt air are harder on external joints. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.
Is Guston off your patch?
Not at all: smaller places are covered as well as towns. Our area covers London and the South East counties. Good photographs up front let us bring everything on the first visit.
Can you send RAMS and CSCS details before starting?
We are CHAS accredited, a Constructionline member and carry public liability insurance. For specific documents, tell us what site paperwork you need (RAMS, insurance certificate, CSCS details) and we’ll confirm with the quote.
Can you seal joints high up on a block?
We talk through access for each building when we quote. Tell us the building height and any access already in place, and we’ll tell you how we’d approach it.
How long does a typical visit take?
That varies with the scale of the job, but the work usually takes anything from a day to a few weeks, depending on the number of buildings and joints. For bigger or phased jobs, we will set out a timescale with the quote.
How do I request a quote?
The quote form is the simplest route, though you can also call the office on 01277 525 020 or use the quote form. Include photographs or drawings if you have them.
Does weather matter for sealant work?
It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Internal work is far less affected.
Nearby places to Guston
More services for Guston
Quoting for work in Guston
What shapes the price:
- How much existing material needs removing
- How much there is to seal
- Working within restricted access windows
- Access and working height
Pricing mastic joints depends on quantities, condition and access, plus any specification you are working to. Call for a quote.
What to include in your enquiry
However big the job, these details speed things up:
- Whether an asbestos survey exists
- Any specification or named product
- Your programme or deadline
- Whether the building will be occupied during the work
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 use the quote form to discuss it first.
What happens if it’s left?
Piecemeal repairs over the years often leave mismatched sealant. A block-wide reseal gives one product, one colour and one guarantee and one 12-month guarantee. One visit to deal with every failing joint makes more sense than several trips to a place like Guston, rather than one at a time. Photos of every joint help us quote for the whole job.
Small jobs and large programmes are priced from the same things: what’s in scope, how we reach it, what’s specified and when it needs doing. Call for a quote and we’ll put a fixed figure on it.
Why us?
- 12-month guarantee on workmanship
- Work carried out by CSCS-carded applicators
- Commercial sealant work since 2005
- Clear, fixed quotes
Take a look at our cost guide and how we’re accredited.