The Mastic Doctor team standing beside their branded vans outside an office building
Kent · England

Facade Sealing in Hernhill

Commercial sealant work in Hernhill for contractors, FMs and building owners: facade joint and window perimeter sealing on commercial buildings, quoted at a fixed price.

  • Discoloured or dirty facade joints
  • Draughts around frames and panels
  • Hard, chalky sealant that no longer flexes
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed quote for the work, with the scope in writing.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
Covering the South East & Scotland
Constructionline member
£5m PL insurance

Need facade sealing in Hernhill?

Photos, a specification or a quick description of the joints is enough to start a fixed quote.

Facade sealing in Hernhill: the local picture

The sea is no more than about 3 miles from Hernhill. Schemes this close to the sea see their facade joints tested by wind and rain from the day they’re sealed, which puts weight on correct joint sizing, priming and a sealant suited to the exposure. Hernhill sits in one of the drier corners of the country, the South East. Even so, frost and condensation on steel and glass are common on winter mornings, so external mastic is timed for workable conditions and agreed with the site manager.

School extensions, at buildings such as Hernhill Church of England Primary School, normally run to the summer holidays, mastic included. On a healthcare site such as Whitstable and Tankerton Hospital, 5.3 miles north-east of Hernhill, new blocks and refurbishments go on while the hospital keeps running, so mastic work is sequenced carefully.

Hernhill is about 3 miles east of Faversham, in Kent. We send applicators to Hernhill for facade joints. 931 places across Kent fall within our area, Hernhill among them. We also cover London, some 47 miles away.

We take on facade joints across the ME13 postcode area, for business premises of every kind. If your building is just outside Hernhill, we cover Slutshole (1 mile south-west), Staplestreet (1 mile south-west), Dargate (1 mile north-east), Culmers (1 mile north-west) and Goodnestone (1 mile north-west). Further afield, our area takes in Ashford (12 miles south), Canterbury (6 miles east), Sittingbourne (10 miles west), Whitstable (4 miles north-east), Faversham (3 miles west) and Herne Bay (8 miles north-east).

What’s near Hernhill

In Hernhill, that means premises near Red Lion pub and Mount Ephraim Gardens, among other places. Hernhill’s nearest station is Selling station, about 2.3 miles south-west of the centre. Other landmarks nearby include Chilham Castle (4.5 miles south) and Whitstable and Tankerton Hospital (5.3 miles north-east). For a walk, there’s Blean Woods RSPB Reserve.

Map of Hernhill © OpenStreetMap contributors

Facade sealing in Hernhill

Installing framed glazing systems isn’t part of our work. What we seal are the joints around them: the frame-to-structure perimeter, panel-to-panel joints and window and door surrounds. The enquiries we see most involve perimeter joints where frames meet the structure and water coming in around window frames, on shopfront frames, cladding panel joints and stone and brick facade joints. Whether you call it commercial sealant work, mastic application or joint sealing, the work in Hernhill is the same: the right product in a properly prepared joint.

Conversions of older rural buildings near smaller places such as Hernhill bring stone, flint, brick and timber up against new glazing. Those joints need a sealant that suits an uneven, sometimes porous surface, and often a colour chosen for the building.

Every job we finish is backed by a 12-month workmanship guarantee, wherever the site is. If our installation lets you down in that time, we return and fix it.

Place
Hernhill (ME13)
Region
Kent
Guarantee
12 months on every job
Price
Quoted before any work starts
Phone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Your questions answered

Is Hernhill too small for you to travel to?

No. Places such as Hernhill are covered as much as the big towns. We work across Greater London and the South East. Good photographs up front let us bring everything on the first visit.

Do you cover business parks and estates near Hernhill, such as Waterham Business Park?

Yes. We cover Hernhill and the area around it, including industrial estates, business parks and retail parks such as Waterham Business Park. A few photos and the unit address let us price the work.

How long will the new sealant last?

Nobody can honestly give a figure in years, because life depends on how much the joint moves, how exposed it is and how it’s cleaned and used. Regular inspection is the best way to catch problems early.

Do you seal facades in winter?

Rain and frost can pause external sealing. We plan for weather and keep you updated as the work goes on.

Can you work on upper floors?

Access is planned with you before we quote. Let us know what access is in place or planned, and we’ll price the work around it.

Is the work guaranteed?

Yes. It runs for twelve months and covers how we prepared and sealed the joints, but not damage, misuse or other trades’ work.

Does the weather affect the work?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

Leave it or put it right?

Patch repairs over old sealant tend to come back. A full cut-out and fresh bead is the repair that holds, so you aren’t paying for the same joint twice. For buildings around smaller places like Hernhill, water damage can go unnoticed for longer, especially where a building isn’t used daily, so a failed joint can leak for a while before anyone sees it. Renewing joints in good time avoids the problem.

There’s no price list, since every building and every scope is different. For a fixed figure, call for a quote.

Why clients in Hernhill choose us

  • 12-month guarantee on workmanship
  • Sealing commercial buildings since 2005
  • Specification-led, product-correct work
  • Constructionline member for supplier checks

Read what affects the cost or our accreditations.

When to bring in a specialist

There’s also the paperwork. Main contractors and clients often ask for CSCS cards, RAMS and insurance details, and our CSCS-carded applicators are used to working under those rules.

For a quick touch-up, site staff may be fine, but anything bigger is another matter: a specialist brings efficiency, a consistent finish and a 12-month guarantee.

Cost factors for facade joints

These are the things that shape the price:

  • Which sealant the job calls for
  • Removal of failed or old sealant
  • Phasing around occupants
  • Quantities, in metres or numbers

The price depends on how many linear metres there are, how much old material needs removing and how the joints are reached. Call for a fixed quote once you have the details.

What to include in your enquiry

To price the job accurately, we need to understand the site. Send us:

  • Photos of the joints, close up and from further back
  • When you need the work done
  • What the building is and how it’s used
  • The asbestos register, for older buildings

The quickest route to a quote is a few photographs and the site postcode. Send them through the quote form, or phone 01277 525 020 or use the quote form if you’d rather talk the job through.

Building owners, agents and FMs in Hernhill

Building owners and managing agents use us on sealant work across single buildings or whole portfolios around Hernhill. Several sites can go on one quote, so there’s one set of paperwork to deal with.

For main contractors, we work as the sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first, with CSCS-carded applicators on site.

When to call us in Hernhill

When the sealant tears down its centre, it has typically been asked to move more than it can. The joint may be too narrow, the bead too thin or the sealant the wrong movement class.

Things that normally lead to an enquiry:

  • Failed sealant on precast panel joints
  • Weathered joints at frame-to-structure perimeters
  • Unsightly perimeter sealant on a visible elevation
  • Cold air coming in at window perimeters

Hotel extensions and refits, at places such as Cave Hotel and Golf Resort (1.3 miles south-west of Hernhill), typically run between busy periods, so the sealing is squeezed into short windows.

What your quote should include

  • Their pre-qualification and accreditations
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Their plan for phasing and protecting the area
  • The named product and why it was chosen

Questions to ask before you appoint anyone

Our process

We schedule the visit to fit the site hours and access windows you give us. While we are working, the area stays contained and tidy, and your contact hears from us before we move to the next area. If others near Hernhill need work, visits can be combined, which keeps travel down. You will have a fixed quote before work starts.

  1. Access, site rules and timing are settled with the client up front.
  2. Weather and temperature are checked against the product’s limits.
  3. Each joint is cut out and the edges inspected.
  4. Faces are cleaned, primed where needed and backed.
  5. Sealant is gunned in and tooled hard onto both faces.
  6. Once signed off, the work carries our 12-month guarantee.

Before we start on site

  • Tell us which areas need to stay in use
  • Clear stock, furniture or equipment away from the joints
  • Send any specification or drawings in advance

Getting a fixed quote

To get a fixed quote, phone 01277 525 020 or email us with the site address and an outline of the work. Our quote form is another easy route.

Get a price

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