
Facade and window perimeter sealing in Hamstreet, Kent
Work needed on a facade joint in Hamstreet? We assess it, carry out the work and guarantee our workmanship for 12 months.
- Old perimeter mastic that has dried out
- Cladding panel joints that have opened up
- Draughts around frames and panels
Facade sealing near Hamstreet
Photos, a specification or a quick description of the joints is enough to start a fixed quote.
How we handle facade sealing in Hamstreet
A good facade joint depends on design as much as product. The width has to suit the expected movement and the sealant’s movement capability, and closed-cell rod sets the depth, keeping the bond to two faces with the ratio the sealant maker recommends, often around 2:1. The enquiries we see most involve old perimeter mastic that has dried out and cold air coming in at window perimeters, across window and door perimeters, stone and brick facade joints and coping and flashing joints. Looking for mastic applicators who cover Hamstreet? Mastic Doctor has worked for contractors, FMs and building owners since 2005, with CSCS-carded applicators.
Around smaller places like Hamstreet, building work typically means conversions of farm buildings, a few new houses or an extension to a hall or school. Each still needs a proper mastic package: window perimeters, facade joints and internal sealant to the specification.
We stand behind the joints we seal with a 12-month guarantee. That covers our preparation and application, and if something we did falls short, we return to it.

- Place
- Hamstreet (TN26)
- Region
- Kent
- Cover
- 12 months on every job
- Quotes
- Fixed quote, scope in writing
- Call
- 01277 525 020
- Last updated
- 3 November 2026
Different surfaces, different methods
Perimeter joints at frames and structure
Perimeter joints at frames often show their age first. They are cut out, cleaned, backed and resealed with a product suited to glazing perimeters.
Precast concrete panels
Precast arrises sometimes crumble or carry old residue. Faces are cleaned to sound concrete, and damaged edges are reported.
Cost factors for facade joints
Sealant work doesn’t have a standard rate, because every site is different. What we take into account:
- Working within restricted access windows
- Induction, permit and paperwork requirements
- Access and working height
- Removal of failed or old sealant
The work involved drives the cost: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote.
Before you send an enquiry
Good information means a firmer quote. Helpful details to send:
- The site address and postcode
- Anything awkward about access or site hours
- Any dates the work must fit around
- Whether an asbestos survey exists
We quote a fixed sum against the scope you give us, so the cost is agreed before work starts. To start the process, give us a call on 01277 525 020 or email drawings and photos.
Diagnose, treat, sign off
Diagnose, treat, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then the work is carried out to the specified product and detail, and we finish with a walk round so the work can be signed off. Rural sites near Hamstreet may need directions, gate codes or a contact on site. Send that with the details and we will confirm the plan with the quote.
- We start with photographs, drawings or a visit to see the joints and agree access.
- Product choice follows the joint’s movement and substrate.
- The existing bead comes out in full and both faces cleaned back.
- Primer goes on where the product data asks for it.
- Backing rod is fitted and the new sealant gunned in and tooled.
- We go over the completed work with you before leaving.
Getting the site ready
- Send your site hours and access windows
- Flag any permit to work we’ll need
- Make sure the joints can be reached
Request a quote
Need a figure for a tender or a budget? Send the scope and any drawings, and we’ll return a fixed quote that you can work with. If you have questions first, call 01277 525 020 or send photos by email.
Read more
Maintenance after handover
Every sealant joint needs some looking after, and their life depends on movement, exposure, cleaning and use. Our advice:
- Combine resealing with other works that need access
- Ask about asbestos in pre-2000 mastic
- Investigate damp beside windows promptly
- Brief window cleaners about newly sealed joints
Keep a note of which product went in and when. It helps when matching repairs or planning the next reseal across the elevation.
Tie resealing in with redecoration, cladding repairs or other access. One set-up for several trades saves money.
Questions about Hamstreet
Is Hamstreet too far out for you?
Not at all: smaller places are covered as well as towns. We work across Greater London and the South East. Where we can, we group nearby jobs to make the most of each trip.
Is a hospital such as William Harvey Hospital somewhere you can work?
Yes, healthcare and care buildings are part of our work. The estates team’s permit system and infection-control rules come first, and the work is planned around them.
Can you work to our specification?
Yes. We follow the specification, along with the manufacturer’s installation guidance, and any queries are raised before we start.
Is any job too small?
We quote for single jobs as well as large packages and programmes. Send details for a fixed quote.
Should we check old sealant for asbestos?
In older non-domestic buildings, old sealant can contain asbestos. Check the asbestos register or survey before it is disturbed, and if anything is suspected, we stop until it’s tested. Removal of asbestos isn’t something we do.
Who decides which product is used?
A specification, where there is one, decides it. If there isn’t one, it comes down to the joint: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.
How long will the new sealant last?
It depends on movement, UV and weather, cleaning, traffic and the product. Treat them as maintenance items and inspect them regularly.
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.
For most general trades, sealant is a sideline. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.
What we are called out for in Hamstreet
Three-sided adhesion is a classic installation fault. With no backing, the sealant is restrained and tears as the joint moves.
Look out for the following:
- Draughts around frames and panels
- Perimeter joints where frames meet the structure
- New sealant peeling off old mastic
- Damp patches beside frames after rain
On a healthcare site such as William Harvey Hospital, 5.8 miles to the north-east of Hamstreet, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully.
Questions to ask before you book
- Their public liability cover
- Whether primer will be used where the manufacturer specifies it
- Who will actually carry out the work
- How the existing material will be dealt with
Places near Hamstreet
What else we do in Hamstreet
Facade sealing around Hamstreet: what changes locally
Hamstreet lies roughly 51 miles out from central London. Construction around the commuter belt mixes station-side flats with refurbished offices and units, and main contractors there need mastic that keeps to the programme. Hamstreet is in the South East, one of the UK’s drier regions. Winter mornings still bring frost and condensation on frames and panels, which is why external dates are agreed with the site manager.
School extensions, at buildings such as Hamstreet Primary Academy, usually run to the summer holidays, mastic included. For contractors refurbishing units at places like Meadow View Business Park, 0.8 miles east of Hamstreet, the mastic covers cladding panels, roller-door and window perimeters.
Hamstreet is about 5 miles south of Ashford, in Kent. We send applicators to Hamstreet for facade joints. We work across 931 places in Kent, large and small. Brighton is covered too, around 46 miles from Hamstreet.
If you need facade sealing in TN26, the process matches everywhere else we work: details, then a fixed price, then sealing and a 12-month guarantee. We cover commercial and managed buildings on The Street, Dukes Meadow and Rectory Walk. Close to Hamstreet, our area also takes in Orlestone (1 mile north-west), Ruckinge (1 mile east), Kenardington (2 miles west), Bromley Green (2 miles north) and Stone Cross (2 miles north-east). Bigger towns within reach include Ashford (5 miles north), Folkestone (14 miles east), Hythe (10 miles east), Hawkinge (14 miles east), Tenterden (7 miles west) and Cheriton (13 miles east).
Local landmarks in Hamstreet
Around Hamstreet, our work takes us to commercial buildings near The Dukes Head pub. Hamstreet has its own railway station: Ham Street station. A little further out are Brenzett Aeronautical Museum (3.9 miles south) and William Harvey Hospital (5.8 miles north-east). The countryside around Hamstreet includes Orlestone Forest.