How Green facade sealing
Planning work on a facade joint in How Green? We look at it, seal it with the right product and hand it over with a 12-month guarantee.
- Previous reseals run over old sealant
- Hard, chalky sealant that no longer flexes
- Facade joints cracked through the middle
Facade sealing near How Green
Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.
Your questions answered
Is a smaller place like How Green outside your area?
No. Small places get the same service as large ones. We work across Greater London and the South East. We plan jobs in smaller places so return trips are kept to a minimum.
Can you take on a job at a hospital such as Edenbridge and District War Memorial Hospital?
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.
How many days will you need on site?
That varies with the scale of the job, but the work usually takes anything from a single day to several weeks, depending on joint lengths, access and the weather. Larger or phased jobs take longer, and we will give you a timescale with the quote.
How do you choose the sealant?
The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.
Is old mastic on our building likely to contain asbestos?
Some older mastics, especially in pre-2000 buildings, can contain asbestos. The dutyholder’s asbestos register should be checked first, and if anything is suspected, we stop until it’s tested. We don’t remove asbestos-containing materials.
Do you guarantee your work?
Yes. It runs for twelve months and covers how we prepared and sealed the joints, but not damage, misuse or other trades’ work.
When can you be on site?
We are in the office from 8am until 5pm, Monday to Friday. Tell us your site hours and access windows and the work will be fitted around them.
Facade sealing for commercial buildings in How Green
Access is part of every facade job, and we plan it with you before quoting. Tell us about access: whether scaffold is already up, what the client is arranging, and any restrictions on the site, so the price covers the real job. We work on perimeter joints where frames meet the structure, shopfront frames and cladding panel joints, and the usual reasons a site gets in touch are perimeter joints where frames meet the structure and leaks at window and door perimeters. One point of contact handles commercial sealant work in How Green from the first photos to the final walk-round, whether it’s one building or several.
Sites around smaller places like How Green can be a fair drive from suppliers, so we come with everything the package needs, timed to the stage the job has reached. Drawings, photographs and the programme let us give a fixed quote.
Whoever the client is, the cover is the same: twelve months on the work we carried out. It doesn’t extend to damage, faults in the building or work by others, and we’re upfront about that.
- Place
- How Green (TN8)
- Region
- Kent
- Guarantee
- 12 months on every job
- Quote
- Fixed quote, scope in writing
- Phone
- 01277 525 020
- Updated
- 3 November 2026
Sites and facades in and around How Green
How Green sits in one of the drier corners of the country, the South East. Winter mornings still bring frost and condensation on frames and panels, so we time external mastic for dry faces and agree it with the site team. Central London is about 23 miles from How Green. Building activity in the commuter belt runs from new flats near stations to business park refurbishments, so mastic packages have to keep pace with busy programmes.
Hotel extensions and refits, at places such as Hever Hotel (less than half a mile east of How Green), typically run between busy periods, so the sealing is squeezed into short windows. For contractors at a school such as Hever Church of England Voluntary Aided Primary School, sealing has to be finished before term starts.
How Green is about 7 miles south-west of Sevenoaks, in Kent. Commercial clients in How Green use us for work on facade joints. How Green is one of 931 places we cover in Kent for facade joints. Our London page has more on work in that area (23 miles or so).
Commercial sites across TN8 are covered for facade joints. Streets here include Hever Road and How Green Lane, and sites on any of them can send details for a fixed quote. Sites close to How Green are covered too, including Hever (1 mile south), Newtown (2 miles south), Markbeech (2 miles south), Chiddingstone Causeway (3 miles east) and Chiddingstone Hoath (3 miles south-east). A short drive away, we cover Sevenoaks (7 miles north-east), Royal Tunbridge Wells (8 miles south-east), Tonbridge (7 miles east), Swanley (14 miles north), Kings Hill (14 miles east) and Paddock Wood (12 miles east).
Landmarks near How Green
Around How Green, our work takes us to commercial buildings near The Wheatsheaf Public House and Chiddingstone Castle Park and Gardens. For rail, the closest station is Hever station, roughly 1.3 miles south-west. Well-known places in the area include Tandridge Priory (5.4 miles north-west) and Hever Castle (0.7 miles south).
From enquiry to sign-off
We follow your site rules from the start: signing in, inductions and any permit to work. Once we are cleared to begin, the joints are worked through in the order agreed with your site contact. Rural sites near How Green may need directions, gate codes or a contact on site. Add it to your enquiry and we’ll build it into the plan.
- We start with photos, 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.
- Rod goes in to fix the depth, then the joint is sealed and tooled.
- The finished joints are checked with you.
Getting the site ready
- Explain the parking and delivery arrangements
- Let us know about inductions and permits
- Send any specification or drawings in advance
Get a fixed quote
Quotes are fixed against the scope you send, so the cost is agreed before work starts. To start the process, call 01277 525 020 or email drawings and photos.
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Nearby places to How Green
What else we do in How Green
Owners, agents and contractors
When you manage a building on behalf of an owner, clear figures and clear communication matter. You get a fixed quote, an agreed scope and a walk round at the end, plus a 12-month guarantee.
Main contractors use us as their sealant subcontractor. We work to your programme, your specification and your site rules, and our applicators hold CSCS cards.
After the work
To get the most from the new sealant:
- Keep the sealant details on the building file
- Share access with other external trades
- Check the asbestos register before old mastic is disturbed
- Avoid patch repairs on failed facade joints
Keep a note of which product went in and when. It helps when matching repairs or planning the next reseal.
Deal with sections that fail early as soon as they show. Small repairs stop small leaks becoming large ones inside the building.
Site staff or a sealant specialist?
What you see is the finished bead, but most of the work is hidden. Backing rod, primer where specified and a joint designed to move with the building are easy to get wrong without experience.
Paperwork matters too. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and we will confirm the paperwork you need with the quote.
Do you need facade sealing in How Green?
Product choice matters: an acetoxy cure can mark stone or corrode some metals, and interior products break down outdoors. Neutral-cure, facade-grade products are what most external joints need.
Things that normally lead to an enquiry:
- Previous reseals run over old sealant
- Hard, chalky sealant that no longer flexes
- Perimeter sealant that has split or peeled away
- Unsightly perimeter sealant on a visible elevation
For a contractor working at a hospital such as Edenbridge and District War Memorial Hospital, 2 miles west of How Green, perimeter and facade sealing is planned around patients and deliveries.
Before you book anyone
- Whether their applicators hold CSCS cards
- Their approach to joint depth and backing
- How they’ll work around occupants
- What level of public liability insurance do they hold?
What we can’t put right
We check first that sealant really is the fix. It isn’t the answer for:
- Water getting in through cracked render or porous masonry
- Joints whose design needs changing by the specifier
- Replacing glass or failed glazing units
If you are not sure, just ring 01277 525 020 or email the details over and we’ll give you a straight answer.
Surfaces we seal
- Perimeter joints where frames meet the structure
- Stone and brick facade joints
- Cladding panel joints
- Window and door perimeters
- Shopfront frames
- Coping and flashing joints