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

Facade and window perimeter sealing in North Street, Kent

Our CSCS-carded applicators take on facade joint and window perimeter sealing on commercial buildings in North Street. Send photographs or drawings for a fixed quote.

  • Old perimeter mastic that has dried out
  • Unsightly perimeter sealant on a visible elevation
  • Weathered joints at frame-to-structure perimeters
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
A fixed price, with what’s included set out clearly.
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
Fully insured: £5m PL

Need facade sealing in North Street?

Send drawings, photos or a joint schedule, or tell us about the site, and we’ll come back with a fixed quote.

How the job changes by surface

Render and coated surfaces

Rendered and painted facades need a sound edge for the sealant to bond to. Loose coatings are cleaned back first, and areas needing repair are flagged.

Perimeter joints at frames and structure

Where framed systems such as shopfronts meet the building structure, there is a perimeter joint to seal. Our work is that perimeter joint.

Facade sealing in North Street

Managing agents and owners in North Street ask us to, we reseal perimeters across whole elevations or a handful of problem windows. The approach doesn’t change with the size: old sealant out, faces cleaned, depth set and a new bead tooled in. Each job carries our 12-month guarantee. We work on perimeter joints where frames meet the structure, coping and flashing joints and shopfront frames, and the failures we’re asked to look at most are weathered facade joints that have lost their grip and gaps between rainscreen or cladding panels. A single leaking joint is often how a building in North Street first comes to us: we look at the rest while we’re there and tell you what we find.

In the countryside around places like North Street, conversion schemes put new frames into old stone, flint, brick or timber. A product that grips an irregular face, with a colour that suits the building’s character, is normally what’s needed.

A 12-month guarantee applies to all our work. Should something we installed fail, call 01277 525 020 or email drawings and photos and we’ll come back to it.

Where
North Street (ME13)
Wider area
Kent
Cover
A 12-month guarantee
Quotes
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

How the quote is worked out

To price the job, we consider:

  • Distance, for remote addresses
  • How much existing material needs removing
  • How much there is to seal
  • Specialist products, such as fire-rated or hygienic sealants

Whether it’s a single area or a whole estate, the same things set the price: scope, access, product and programme. Call for a quote and we will put a fixed figure on it.

Details that help us quote

For an accurate fixed quote, we need a clear picture of the site. Useful things to include:

  • The site address and postcode
  • A wide shot and a close-up of the area
  • Specification clauses that apply
  • Asbestos survey details if the building is older

Let us know the site, the scope and your timescale, and a fixed quote will follow. To get it moving, ring 01277 525 020 or use the quote form.

How a job runs

At the end of each section, the masking comes off, the area is cleaned and every joint is checked. Where the sealant needs time to cure before use, we tell you and sign the area. Jobs in and around smaller places like North Street are normally planned as a single visit, so photos and measurements up front really help. Then the right materials arrive with us.

  1. We plan access and the order of elevations with the client.
  2. Weather and temperature are checked against the product’s limits.
  3. Each joint is cut out and the edges inspected.
  4. Joints are cleaned, primed if required and fitted with backing rod.
  5. Facade-grade sealant goes in and is tooled to a tidy concave profile.
  6. Once signed off, the work carries our 12-month guarantee.

Before we start on site

  • Make sure the joints can be reached
  • Share your working hours and any access restrictions
  • Send any specification or drawings in advance

Getting a fixed quote

Every quote starts with the facts: the joints involved, quantities, access and the product called for. Send what you have, and we’ll arrange a site visit if anything is unclear.

Get a price

Advice

Common questions from North Street clients

What site paperwork comes with a job in North Street?

RAMS, insurance certificate, CSCS details: list what the site needs and we will confirm it with the quote. We are CHAS accredited and a Constructionline member, with £5m public liability insurance and CSCS-carded applicators.

Is a smaller place like North Street outside your area?

No. Places such as North Street are covered as much as the big towns. London and every South East county are within our area. Good photos up front let us bring everything on the first visit.

Does the weather affect the work?

It can, for external work. Sealant won’t bond properly to a wet or frosty joint, so we watch the forecast and rearrange outside work if we have to. Internal work is far less affected.

Can you fit around our working hours?

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.

What type of sealant goes on window perimeters?

It depends on the joint, the substrate and any specification. BS EN 15651 Parts 1 and 2 cover facade and glazing sealants, and specifications often name them, and we work to what is specified.

How soon can the area be used again?

The product and site conditions decide that. Some products skin over quickly but need longer to cure fully, and we confirm it before leaving site.

How much does the work cost?

There isn’t a price list, because every site is different. With photographs or drawings, we can give you a fixed quote.

When to call us in North Street

When sealant lets go of a frame or panel, the cause is often the preparation. Dust, old sealant residue, damp or a missing primer stop it bonding properly, and the joint opens with the first real movement.

These are often picked up first by site or facilities staff:

  • Hard, chalky sealant that no longer flexes
  • Draughts around frames and panels
  • Patch repairs that keep failing
  • Gaps between rainscreen or cladding panels

School extensions, at buildings such as Sheldwich Primary School, usually run to the summer holidays, mastic included.

What to look for in a quote

  • Whether primer will be used where the manufacturer specifies it
  • Their plan for phasing and protecting the area
  • The named product and why it was chosen
  • What level of public liability insurance do they hold?

Our contractor checklist

Site staff or a sealant specialist?

General builders and handymen seal joints, but it isn’t their main trade. A specialist prepares properly, controls joint depth and picks a product with the right movement class, which is what makes a joint last.

Certain joints really need a specialist: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. Getting these wrong typically costs more in the end than doing them right.

Sites and facades in and around North Street

At about 45 miles from central London, North Street is within reach of the capital. 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. North Street 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.

Hotels like Premier Inn Faversham Hotel, 1.3 miles to the north of North Street, rarely close for long, so refurbishment mastic is phased floor by floor. Historic houses such as Belmont House and Gardens, 2 miles to the south-west of North Street, are a reminder of the older buildings in the wider area, where sealing against old stone, brick or timber needs compatible products.

North Street is about 2 miles south of Faversham, in Kent. We cover North Street and the rest of Kent, and jobs here get the same fixed quote and 12-month guarantee as anywhere else. North Street is one of 931 places we cover in Kent. London is covered too, some 45 miles away.

Anyone looking for facade sealing in ME13 gets the same process as the rest of our area: send details, get a quote, we seal, guaranteed. Just outside North Street, we also work in Sheldwich (1 mile south), Sheldwich Lees (1 mile south), Painter's Forstal (1 mile north-west), Badlesmere (2 miles south) and Throwley (2 miles south-west). A short drive away, we cover Ashford (10 miles south), Canterbury (8 miles east), Sittingbourne (8 miles north-west), Whitstable (8 miles north-east), Herne Bay (12 miles north-east) and Minster (10 miles north).

Near you in North Street

Locally, jobs take us to sites close to The Abbey School. For rail, the closest station is Faversham station, about 1.8 miles north. Nearby you’ll also find Newnham Castle (3.7 miles west).

Map of North Street © OpenStreetMap contributors

Why deal with it now?

Open facade joints also let air and dirt through: draughts around frames add to heating costs and complaints. A new seal closes the gap for both. Converted and older buildings near places like North Street tend to move, and aged sealant cracks. A sealant with the right movement capability, correctly sized, lasts far better.

Quantities, awkward access and phased working all shape the price. Site requirements like inductions and permits play a part as well.

Why us?

  • Workmanship guaranteed for 12 months
  • CHAS accredited
  • Over 20 years of commercial sealing
  • Failed material removed, not covered up

See what affects the cost or our accreditations.

Accreditations

Trusted. Accredited. Insured.