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

Construction and new-build mastic in Dover, Kent

Mastic packages for new-build and refurbishment projects in Dover and across Kent. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Failed sealant in an existing building being refurbished
  • Inconsistent sealant finishes from plot to plot
  • Mastic snags holding up handover
1
Send details
Drawings, photos, a joint schedule or a site visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
12-month guarantee on our workmanship.
South East, London & Scotland
Constructionline member
Fully insured: £5m PL

Construction mastic near Dover

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

About our construction mastic in Dover

Mastic follows everyone else, which means it absorbs every delay upstream. The sequence is set with the site team and updated as plots or floors are handed over. That keeps the work right first time and saves rework. We work on sanitary and kitchen joints, cladding and panel joints and floor and skirting junctions, and what we are called in for most is mastic snags holding up handover and new external sealant already peeling away. One point of contact handles commercial sealant work in Dover from the first photographs to the final walk-round, for single jobs and planned programmes alike.

Many towns of Dover’s size have older buildings being converted or extended, so new windows and cladding meet old masonry. Getting the product and primer right for both faces is what keeps those joints sound.

Every job we finish is backed by a 12-month workmanship guarantee. If a joint we sealed fails because of how it was installed, we come back and put it right.

Location
Dover (CT17, CT16, CT15, CT14)
Region
Kent
Guarantee
12 months on our workmanship
Quotes
Fixed quote, scope in writing
Call
01277 525 020
Last updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Your questions answered

Is White Cliffs Business Park, near Dover, within your area?

Yes. Estates, retail parks and business parks around Dover, White Cliffs Business Park among them, are all within reach. Send details of the unit and the work through our quote form for a quick quote.

Can work at a site such as East Kent College fit around teaching?

Yes, holiday working periods are the norm on campus jobs. Let us know which documents your site asks for, and we’ll confirm them alongside the quote.

Do your applicators hold CSCS cards?

Our applicators hold CSCS cards, and we are CHAS accredited and a Constructionline member. We are also fully insured, with five million pounds of public liability cover.

How long do sealant joints last?

It depends on movement, UV and weather, cleaning, traffic and the product. Sealant joints are maintenance items, so inspect them regularly.

Is colour matching possible?

It depends on the product specified. Some ranges offer many colours, others very few, so the available colours are confirmed with the quote.

Can weather delay the job?

It can, when the joints are outside. Wet joints and cold, damp or frosty conditions stop the sealant bonding properly, so external work may be moved if conditions aren’t right. Internal work is far less affected.

How much does the work cost?

We don’t publish prices, as every site differs. Send photographs or drawings and we will price it at a fixed figure.

Construction mastic around Dover: how the place shapes the job

Dover is within about 2 miles of the coast. On a coastal site, facade and perimeter joints face driven rain and, closer to the beach, salt, which puts weight on correct joint sizing, priming and a sealant suited to the exposure. Dover has a good number of hotels close by, all within 2 miles. When hotels extend or refit, the work is normally squeezed between peak periods, mastic included.

Extensions at sites like Buckland Hospital, 0.6 miles to the south-west of Dover, usually sit beside working departments, and the mastic follows strict access rules. Projects at colleges like East Kent College, 0.9 miles to the south-east of Dover, tend to run to term dates, so the mastic is planned tightly. When a school such as Shatterlocks Infant School is extended or refurbished, the mastic package is often squeezed into the holidays.

Dover is in Kent. Looking for construction mastic in Dover? We can help, as we do across Kent. Our Kent coverage takes in 931 places. Our London page has more on work in that area (65 miles or so).

Commercial sites across CT17, CT16, CT15 and CT14 are covered for mastic packages. Buildings on London Road, High Street and Church Road are within our area. With the A2 and A20 nearby, Dover is straightforward for us to reach. Close to Dover, our area also takes in River (1 mile north-west), Maxton (1 mile south), Kearsney (1 mile north-west), Whitfield (1 mile north) and Temple Ewell (2 miles north-west). Nearby towns on our patch include Canterbury (14 miles north-west), Folkestone (7 miles south-west), Ramsgate (15 miles north), Deal (7 miles north-east), Hythe (11 miles south-west) and Walmer (6 miles north-east). As one of the bigger centres in Kent, Dover has a broad mix of commercial, public and industrial buildings.

Local landmarks in Dover

Locally, jobs take us to sites close to Connaught Park, The Bull pub and St Edmund's Catholic School. Dover’s nearest station is Dover Priory station, about 0.9 miles south of the centre. Well-known places in the area include Dover Castle (1.3 miles south-east) and Crabble Corn Mill (0.7 miles west). For a walk, there’s Dover Western Heights.

Map of Dover © OpenStreetMap contributors

Different surfaces, different methods

Bathrooms, en suites and washrooms

On multi-unit schemes, consistency matters across hundreds of bathrooms. A single team keeps the standard consistent, plot by plot or floor by floor.

External facade and movement joints

Brickwork, blockwork and panel movement joints need a sealant with the right movement capability. We set the depth with backing rod to avoid three-sided adhesion.

Owners, agents and contractors

Whether you are a managing agent, a property factor or an owner’s representative: send the details, accept a fixed quote, and we carry out and guarantee the work. Keys, access and contacts can be agreed in advance.

Hotels, schools, healthcare sites, offices and retail units come to us directly as well. We plan around the way the building is used, so the building keeps working while we do.

What affects the price in Dover

There’s no standard rate for sealant work, because every site is different. What we take into account:

  • How much there is to seal
  • The size and state of each joint
  • How accessible the joints are
  • Which sealant the job calls for

The specified product makes a difference, as does the preparation each joint needs, such as cutting out, priming or new backing rod. Access, phasing and site rules also count.

Details that help us quote

There’s no need for a formal survey. A few details are enough to get going:

  • Drawings or a marked-up plan, if available
  • Whether an asbestos survey exists
  • The type of building and who uses it
  • Photos of the joints, close up and from further back

Need a figure for a tender or a budget? We will quote against your scope and drawings that you can work with. For a chat about it beforehand, call the office on 01277 525 020 or use the quote form.

Why deal with it now?

Refurbishments sometimes budget for new windows when the frames are sound and only the seal has failed. Sound frames often need only a new perimeter seal, which is a much smaller cost. If the frame is life-expired, we will tell you. Many buildings in towns like Dover have been extended or altered, and joints where old meets new tend to fail first. Resealing them early protects the building behind.

We don’t publish prices, since every building and every scope is different. For a fixed figure, call for a quote and we will price your job on its own details.

Why clients in Dover choose us

  • 12-month guarantee on workmanship
  • Our applicators hold CSCS cards
  • Failed material removed, not covered up
  • Fully insured, including public liability cover

Take a look at how commercial sealant jobs are priced and our accreditations.

When to bring in a specialist

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

For a quick touch-up, site staff may be fine, but larger jobs are different: a specialist works through quantities efficiently, leaves a consistent finish and backs it with a 12-month guarantee.

How a job runs

We follow your site rules from the start: signing in, inductions and any permit to work. With the paperwork done, the joints are worked through in the order agreed with your site contact. For a town like Dover, we try to group jobs for the same client into one visit. Give us your access times and we will fit the work in.

  1. We walk the site or review drawings to understand the package.
  2. You receive a fixed quote covering scope, products and sequence.
  3. Paperwork is agreed and applicators are inducted on site.
  4. Sealing follows the programme as areas are released.
  5. Problems we find, such as oversized gaps, are raised right away.
  6. The package is closed out, snags cleared and backed by our 12-month guarantee.

Getting the site ready

  • Tell us what induction or permit system the site runs
  • Make sure the joints can be reached
  • Agree which areas must stay open

Get a fixed quote

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price against exactly what is specified. For smaller jobs, photographs and a description will do.

Ask for a quote

Related advice

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