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

Margate facade sealing

We carry out facade joint and window perimeter sealing on commercial buildings in Margate and the surrounding area. Send photos or drawings for a fixed quote.

  • Patch repairs that keep failing
  • Air leaks through failed facade joints
  • Weathered facade joints that have lost their grip
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
A fixed price, with what’s included set out clearly.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
Constructionline member
£5m public liability

Facade sealing across Margate

Tell us what needs sealing and where, with photos or drawings if you have them, and we’ll price it.

Facade sealing in Margate

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, using sealants classified for facade or glazing use. Site teams most often ask us about water coming in around window frames and cladding panel joints that have opened up, on window and door perimeters, cladding panel joints and perimeter joints where frames meet the structure. Sealant contractors, mastic applicators, sealant specialists: whatever the job title on the order, the work in Margate is the same: failed joints cut out, faces prepared and the right sealant laid to the right depth.

Older town-centre buildings in places like Margate are often converted to new uses or extended, which puts new frames and panels against old brick, stone or render. Getting the product and primer right for both faces is what keeps those joints sound.

Our 12-month guarantee is about workmanship, not wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we’re clear about what is covered before work starts.

Location
Margate (CT9, CT7, CT8, CT10)
Region
Kent
Guarantee
12 months on our workmanship
Quotes
A fixed quote before we start
Telephone
01277 525 020
Updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

On site: what to expect

Diagnose, treat, sign off: every visit follows that pattern. First comes an inspection and agreement on scope, then we prepare and seal each joint with the specified product, and the job ends with a walk round and sign-off. Parking and loading for town-centre jobs in Margate are worth mentioning when you send details. Industrial and business units typically have yard or car park space.

  1. Photos, drawings or a visit tell us about the joints and the access.
  2. We confirm the joint type, movement and the specified product.
  3. The existing bead comes out in full.
  4. Primer is applied where the maker specifies it.
  5. Rod goes in to fix the depth, then the joint is sealed and tooled.
  6. We go over the completed work with you before leaving.

Before we start on site

  • Tell us which areas need to stay in use
  • Move anything stored against the joints
  • Send any specification or drawings in advance

Ask for a quote

Photos, drawings or a schedule of the joints are often enough for a fixed quote. If the job needs a look first, we will arrange a site visit.

Get a quick quote

Read more

Building and refurbishing in Margate

Margate is within about 1 mile of the coast. Facades and window perimeters on coastal schemes take more wind-driven rain, and salt air nearer the shore, so joint design, primers and product choice deserve extra care. A 2-mile radius around Margate takes in plenty of hotels. Hotel extensions and refits normally have to fit around bookings, so mastic dates are tight.

Hotel extensions and refits, at places such as Former 'Man Of Kent' Temperance Hotel, less than half a mile north-west of Margate, normally run between busy periods, so the sealing is squeezed into short windows. When a school such as Salmestone Primary School is extended or refurbished, the mastic package is often squeezed into the holidays.

Margate is in Kent. Commercial clients in Margate can call on us for facade joints, as part of our coverage of Kent. Our Kent coverage takes in 931 places, from busy centres to rural villages. There’s a separate page for London, about 64 miles away.

We cover the CT9, CT7, CT8 and CT10 postcode districts for facade joints. We cover commercial and managed buildings on Yoakley Square, Church Road and High Street and the roads nearby. You will find Margate on or near the A28 and A254. Sites close to Margate are covered too, including Westwood (1 mile south), Westbrook (1 mile west), Garlinge (1 mile west), Flete (1 mile south-west) and Haine (2 miles south). Nearby towns on our patch include Canterbury (15 miles south-west), Ramsgate (3 miles south), Whitstable (15 miles west), Deal (11 miles south), Herne Bay (11 miles west) and Walmer (12 miles south). Margate ranks among the main centres of Kent, with offices, shops, schools and other public and commercial buildings.

Around Margate

In Margate, that means premises near Hartsdown Academy and Secret Spices pub. Margate’s nearest station is Margate station, roughly 0.6 miles north-west of the centre. A little further out are Westwood Cross (1.6 miles south) and Queen Elizabeth the Queen Mother Hospital (under half a mile south-east). Not far away are Sandwich and Pegwell Bay.

Map of Margate © OpenStreetMap contributors

Different surfaces, different methods

Brick and stone facades

On masonry, the sealant has to suit a porous, textured surface. Neutral-cure products are used because acetoxy types can mark some stone.

Perimeter joints at frames and structure

The joint around a framed system, where it meets the structure, needs sealant. Our work is that perimeter joint.

Signs you need facade sealing in Margate

Three-sided adhesion is a classic installation fault. Without rod or bond-breaker tape, the bead is held back and rips when the facade moves.

Any of the following is a good reason to get the joints checked over:

  • Discoloured or dirty facade joints
  • Failed seals around shopfront and entrance frames
  • Old perimeter mastic that has dried out
  • Cold air coming in at window perimeters

For contractors at a college like TOPS Vocational College (0.5 miles north-east of Margate), perimeters and internal sealant are timed for the holidays.

What your quote should include

  • How joint depth will be controlled
  • Their public liability cover
  • Is the sealant right for the movement and the substrate?
  • Health and safety accreditation such as CHAS

How to choose a sealant contractor

Your questions answered

Can you take on a job at a hospital such as Queen Elizabeth The Queen Mother Hospital?

Yes. Healthcare sites are among the places we work. Work is phased so departments keep running, under the site’s own rules.

Do you cover business parks and estates near Margate, such as All Saints Industrial Estate?

Yes. Our area takes in Margate and its surroundings, with estates and business parks such as All Saints Industrial Estate included. Photos and a short description are enough for a first look.

Are you insured?

Yes. We are fully insured, including public liability cover.

What type of sealant goes on window perimeters?

The product follows the joint’s movement, the surfaces and the 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.

Do you cover Margate?

Yes. We cover Margate and the rest of Kent, within our coverage of Greater London, South East England and Scotland. To discuss a job, phone 01277 525 020 or send details through our quote form.

Will you check whether the sealant is causing the leak?

Yes. We check the sealant joints and report what we find as part of pricing. If the water seems to come from a roof, sill or the glazing unit instead, we say so.

Do your applicators hold CSCS cards?

Yes. Should the site need card details in advance, tell us and we’ll confirm them with the quote.

Should maintenance staff do it?

General builders and handymen seal joints, but it isn’t their main trade. A specialist brings correct preparation, depth control with backing rod and a product suited to that particular joint.

A short, simple internal joint is often within reach of a maintenance team. Where it goes wrong is preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

After the work

A few simple habits keep the new joints working:

  • Avoid patch repairs on failed facade joints
  • Clear debris that holds water against joints
  • Record the product and colour used on each elevation
  • Check the asbestos register before old mastic is disturbed

Record the sealant type and date on the building file. It helps when matching repairs or planning the next reseal.

Check older buildings for asbestos before disturbing old mastic. Older sealants can contain asbestos.

Why it’s worth doing now in Margate

Topping up a failed joint usually buys very little time. A full cut-out and reseal costs more on the day but lasts much longer. In a town such as Margate, a lot of buildings are older and have been altered over time, so joints between old and new are often the first to go. Renewing them before water gets in protects the fabric.

Every site prices differently: the joint sizes, the specified product, access and working hours each have a bearing. A fixed quote follows once we understand the job.

Why clients in Margate choose us

  • 12-month guarantee on workmanship
  • Fully insured
  • Old sealant cut out, never sealed over
  • Matching to RAL references, product permitting

Read what affects the cost or our accreditations and insurance.

Accreditations

Trusted. Accredited. Insured.