The Mastic Doctor team standing beside their branded vans outside an office building
Highland · Scotland

Commercial sealant contractors in Charlestown, Highland

We carry out sealant work for offices, shops, hotels and other commercial buildings in Charlestown. Send details for a fixed quote.

  • Wall and floor joints that have lost their seal
  • Shrunken sealant along kitchen worktops and splashbacks
  • Earlier reseals applied straight onto the failed bead
1
Send details
Send the specification, photos or a marked-up plan.
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
Our workmanship is guaranteed for 12 months.
South East, London & Scotland
CHAS accredited
£5m public liability

Commercial sealant contractors across Charlestown

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

Your questions answered

Do hotels near Charlestown have to close for sealant work?

Almost never. The work is phased so most rooms stay available. Tell us your quiet periods and access windows and we’ll plan around them.

Does the sea air around Charlestown change the choice of sealant?

It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.

Do you seal on top of existing sealant?

No. Sealing over old material is one of the classic causes of early joint failure, so everything comes out first.

Does the weather affect the work?

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 soon can the area be used again?

We will confirm how long the chosen product needs to cure.

When is resealing likely to be due?

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

Do you work directly for building managers?

Yes. FMs, managing agents and landlords are among our regular clients, alongside main contractors. We can work to your instruction process and site rules.

Commercial sealant contractors in Charlestown

We have applied sealant on commercial sites for over 20 years, and the documents buyers ask for are ready: we are CHAS accredited and a Constructionline member, our applicators hold CSCS cards, and we carry five million pounds of public liability insurance. Let us know which site documents you need and they’ll be confirmed with the quote. We work on kitchen worktops and splashbacks, movement joints in walls and floors and window and door perimeters, and what we’re called in for most is layers of sealant, all of them failing and greasy, split joints in a kitchen or tea point. Sealant applicators who only do sealant are a different proposition from a general trade with a gun in the van: on jobs in Charlestown, preparation and product choice get the time they need.

Quotes for commercial sealant in Charlestown can come from photos and a joint schedule, or from a walk-round, and the scope is set out in writing.

In smaller Scottish places like Charlestown, commercial buildings are often hotels, pubs, shops, schools, surgeries and farm or estate buildings put to new use. Their kitchens, washrooms and window perimeters all need joints that keep water out.

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

Place
Charlestown (IV1)
Wider area
Highland
Guarantee
A 12-month guarantee
Quote
A fixed quote before we start
Telephone
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

Sealant on show in Charlestown’s commercial buildings

Charlestown is within about 1 mile of the coast. Buildings near the sea put their external joints through more driven rain, with salt air nearer the beach. Sea-facing elevations are typically where failed joints show first. The 3 miles around Charlestown take in two named trading estates, business parks or retail parks. Each new occupier on a park like these tends to refit, from reception to staff kitchen, often in a colour the occupier specifies.

A hotel such as North Kessock Hotel (to the east of Charlestown) shows how much sealant a hospitality building has on show, from bathroom joints to the bar. Trade counters and showrooms on estates such as Carse Industrial Estate (1.1 miles south of Charlestown) need neat joints where clients see them.

Charlestown is about 3 miles north-west of Inverness, in Highland. Across the IV1 postcode area, it works the same way: send details, get a fixed quote, we seal, and the work is guaranteed. Across Highland, 256 places are covered, Charlestown among them.

Work on sealant joints is covered throughout IV1, for business premises of every kind. For a building on Main Street, Oakleigh Road and Bellfield Road or nearby, send details and we will quote for sealant joints. Just outside Charlestown, we also work in North Kessock (1 mile north-west), Merkinch (1 mile south), Longman (2 miles south-east), Leachkin (2 miles south) and Millburn (2 miles south-east). Nearby towns on our patch include Inverness (3 miles south-east), Nairn (15 miles east), Cradlehall (5 miles east), Dingwall (9 miles north-west), Hilton (3 miles south-east) and Alness (13 miles north). Remote and island addresses take more planning, from travel and ferries to the weather, so give the site location in your enquiry.

Local landmarks in Charlestown

Charlestown’s nearest station is Inverness station, about 2 miles south-east. Other landmarks nearby include Eastgate Shopping Centre (2.1 miles south-east) and Clan Maclennan Museum (1.3 miles north). Green spaces nearby include Ord Hill.

Map of Charlestown © OpenStreetMap contributors

Site staff or a sealant specialist?

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.

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: sealing over old material, sealing onto damp or dusty surfaces, or a product that can’t take the movement.

Why deal with it now?

Leaving a failed joint rarely saves money. Once water gets behind the seal, finishes and ceilings underneath are next. Dealing with it while the damage stops at the bead is the cheaper route. Buildings that aren’t in daily use, such as halls and seasonal premises, may let water in unnoticed, so a failed joint has time to cause damage. Resealing early avoids that.

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Tell us how the joints are reached and call for a quote.

Why choose Mastic Doctor in Charlestown

  • Fully insured, including public liability cover
  • A Constructionline member, so easy to vet
  • Joints cleaned back to sound surfaces
  • Colours chosen to suit frames, cladding or finishes where possible

See how commercial sealant jobs are priced and our accreditations and insurance.

Our process

Our CSCS-carded applicators arrive with the sealants, primers and backing rod the job calls for. Any old material is cut back to clean, sound faces, primer goes on where the manufacturer specifies it, and each bead is tooled to a neat concave finish. Travel to smaller Scottish places like Charlestown is planned so the job is finished in one visit where possible, which is why we ask for photos and a full list first. Outside work also needs a suitable weather window.

  1. First, details reach us through the quote form or a site visit.
  2. The cause is diagnosed and the scope priced as a fixed quote.
  3. Where parts of the building must stay open, the work is phased.
  4. Every failed bead is removed rather than covered.
  5. Each joint gets a suitable sealant, laid to depth and tooled.
  6. We check the work with you, and the 12-month guarantee starts.

Before we start on site

  • Make sure the joints can be reached
  • Tell us what induction or permit system the site runs
  • Send your site hours and access windows

Get a fixed quote

Send details, get a quote, we seal, guaranteed: that’s how every job runs. The first step is to ring 01277 525 020 or email a schedule or drawings with what you know.

Get a quick quote

Read more

How the quote is worked out

A fixed quote reflects the actual work. It takes account of:

  • Whether old sealant has to be cut out first
  • The product specified
  • Phasing around occupants
  • Backing rod, priming and other preparation

Larger quantities, tricky access or phasing all shape the price. Site requirements like inductions and permits play a part as well.

Sending details for a quote

It doesn’t need to be a full survey. These details are enough to start:

  • The postcode of the building
  • Any specification or named product
  • When you need the work done
  • Access details, including height

Send us photos, drawings or a joint schedule and a fixed quote comes back to you. Where a site visit makes more sense, we will arrange one.

Surface by surface

Fire-rated seals where specified

Fire-rated sealant is only one type of fire-stopping product. Other products, such as collars, wraps and batts, are specified for different services.

Window and door perimeters

Where frames meet the surrounding wall, sealant is the weather line. Failed perimeters are cut out and cleaned, backing goes into deeper gaps, and the joint is resealed with a low-modulus neutral-cure silicone or another suitable product.

When to call us in Charlestown

Resealing over the top is a false economy we come across often. Fresh sealant won’t stick to the old bead underneath. Getting back to a clean joint then means removing every layer.

It’s worth sending us details if you spot any of the following:

  • Leaks that seem to come through a sealant line
  • Movement joints packed with grit and debris
  • Smeared sealant across finishes from a rushed job
  • Greasy, split joints in a kitchen or tea point

A business with units at Carse Industrial Estate and Telford Retail Park needn’t use two contractors for its sealant.

Comparing quotes

  • How joint depth will be controlled
  • Will failed sealant be removed rather than covered?
  • Whether their applicators hold CSCS cards
  • How long is the guarantee, and what does it include?

Choosing a commercial sealant contractor

Accreditations

Trusted. Accredited. Insured.