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

Commercial sealant contractors in Diuranais, Highland

Sealant work for offices, shops, hotels and other commercial buildings across Diuranais, by CSCS-carded applicators. CHAS accredited and fully insured.

  • Hardened, chalky sealant on south-facing or exposed elevations
  • Mouldy silicone around WCs, urinals and vanity tops
  • Untidy joints in a reception, shop floor or lobby
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
The right sealant, to the right depth, neatly finished.
4
Guaranteed
Our workmanship is guaranteed for 12 months.
Covering the South East & Scotland
Constructionline member
Fully insured: £5m PL

Commercial sealant contractors in Diuranais

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

Commercial sealant contractors in Diuranais

We have applied sealant on commercial sites for over 20 years: CHAS accredited, Constructionline member, five million pounds of public liability insurance and CSCS-carded applicators. Let us know which site documents you need and they’ll be confirmed with the quote. If you are dealing with messy, uneven beads from earlier work that let the building down and leaks that seem to come through a sealant line, we can help, on external facade joints, movement joints in walls and floors and washrooms and tea points alike. Searching for sealant specialists in Diuranais? Mastic Doctor has worked for contractors, FMs and building owners since 2005.

If you look after more than one building near Diuranais, the work can be planned as one programme, with one quote format and one point of contact.

For work in and around Diuranais, we’d rather do everything on one trip: send photographs and a complete list so the right products and colours come on the day. If neighbouring businesses have work too, the visits can be grouped.

We stand by our work: 12 months, guaranteed. It covers how we prepared and applied the sealant, and we come back if anything isn’t right.

Place
Diuranais (IV27)
Wider area
Highland
Cover
12 months on our workmanship
Quotes
A fixed quote before we start
Call
01277 525 020
Page updated
3 November 2026
Mastic Doctor team members lined up next to their branded vans outside an office building

How the quote is worked out

Sealant work doesn’t have a standard rate, because every site is different. What we look at:

  • Removal of failed or old sealant
  • Working within restricted access windows
  • Access and working height
  • Joint width, depth and condition

Cost follows what’s involved: removing old material, preparing the joints, the product, the access and how the work is phased. Call for a fixed quote and we will explain how it’s made up.

What we need to price the job

Good information means a firmer quote. Helpful details to send:

  • Your programme or deadline
  • Approximate linear metres or a joint schedule
  • Clear photographs of the problem areas
  • The type of building and who uses it

Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. For a chat about it beforehand, call the office on 01277 525 020 or email the details over.

What the job involves on each surface

Washrooms and toilets

Around WCs, urinals, vanity tops, IPS panels and cubicles, sealant is wet most of the day. We cut out mouldy or split beads and reseal in anti-mould sanitary silicone.

Movement joints in walls and floors

Brickwork, blockwork and floor slabs all have movement joints that need a flexible seal. When the seal fails, debris gets in and the joint stops working. The joints are resealed using a sealant matched to the movement and any traffic.

Sealant on show in Diuranais’s commercial buildings

Diuranais lies within about 1 mile of the sea. Buildings near the sea put their external joints through more driven rain, with salt air nearer the beach. Sea-facing elevations are usually where failed joints show first. The area within 2 miles of Diuranais holds a number of hotels. A hotel refurbishment is full of joints that guests will see, and a matched colour keeps them discreet, and the work can be phased so the rest of the hotel keeps trading.

For any commercial premises in Diuranais, a lasting joint depends on full removal of the old sealant and clean, dry faces.

Diuranais (Gaelic: Durness) is in Highland. If you’re looking for commercial sealant contractors in Diuranais, we can help, as we do across Highland. Diuranais is one of 256 places in Highland on our list.

We take on sealant joints across the IV27 postcode area, for business premises of every kind. For a building on Hames Place and School Road or nearby, we can quote for sealant joints. Close to Diuranais, our area also takes in Smoo (1 mile south-east), Melness (12 miles east), Kinlochbervie (13 miles south-west), Tongue (14 miles south-east) and Scourie (21 miles south-west). Where a site is remote or on an island, travel and materials need planning ahead, so the full address helps from the start.

Landmarks near Diuranais

Green spaces nearby include Loch Bad an Fheur-loch.

Map of Diuranais © OpenStreetMap contributors

On site: what to expect

Inspect, seal, 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. Travel to smaller Scottish places like Diuranais is planned so the job is finished in one visit where possible, so photographs, sizes and a full list matter. External joints need a dry spell as well.

  1. We begin with whatever information you have, whether that’s photographs, a drawing or a list of locations.
  2. The failure is diagnosed and a fixed quote issued for the work agreed.
  3. We plan around your site hours and access windows, phasing the work where areas have to stay in use.
  4. Failed sealant is cut out and each joint cleaned back to sound, dry faces.
  5. Backing and primer go in where needed, then the chosen sealant is applied and tooled.
  6. Finished joints are checked with you and handed over with our 12-month guarantee.

Getting the site ready

  • Send your site hours and access windows
  • Point out any areas we must not close
  • Move anything stored against the joints

Get a fixed quote

Send us photographs, drawings or a joint schedule are often enough for a fixed quote. If the job needs a look first, we’ll arrange a site visit.

Ask for a quote

Related advice

Your questions answered

Do hotels near Diuranais have to close for sealant work?

In most cases no closure is needed: we work room by room or floor by floor. We agree the order of rooms and the timings with you before we start.

Can being near the sea in Diuranais affect the sealant we need?

It can, yes: buildings near the sea take more wind-driven rain, and salt in the air nearer the shore. We choose the product for the exposure, prime where the manufacturer requires it and size the joint for its movement.

Who decides which product is used?

Where there’s a specification, we use the product it names. If not, we choose for the movement, the surfaces and the conditions, in line with the manufacturer’s guidance.

Is your work guaranteed?

A 12-month guarantee covers the workmanship from handover. Looking after the joints as we advise helps them last.

Will you just go over the old sealant?

No, never. Overlaying old sealant is a frequent cause of early failure, so everything comes out first.

How do you keep disruption to occupiers down?

Phased work can be planned so areas stay in use. We plan around the site hours and access windows you give us.

Can you take on work for an FM or managing agent?

Yes. A large share of our work comes through facilities managers, managing agents and landlords as well as contractors. Tell us how you issue work and we’ll fit in.

Keeping the joints sound

Sealant joints are maintenance items, and how long they last depends on how they’re treated. We suggest:

  • Have extract fans checked so wet areas dry out
  • Keep abrasive pads and scrapers off resealed joints
  • Check the asbestos register before anyone disturbs old sealant in an older building
  • Check sealant as part of routine building inspections

Brief your cleaning team on the joints that have been resealed. Scourers, blades and harsh products shorten a bead’s life, while a neutral cleaner and a soft cloth do no harm.

A failed external joint lets water in every time it rains. Behind a panel or frame, that water can sit unseen for a long time. Catching it at the sealant stage avoids the bigger repair.

Do you need commercial sealant contractors in Diuranais?

A good share of the joints we inspect were topped up instead of being renewed. Fresh sealant won’t stick to the old bead underneath, so the top layer lifts, holds water and hides what’s going on. By the time it shows, there can be two or three layers to cut out.

Most enquiries start with one or more of the following:

  • Earlier reseals applied straight onto the failed bead
  • Damp patches where an external joint has failed
  • Greasy, split joints in a kitchen or tea point
  • Mouldy silicone around WCs, urinals and vanity tops

A hotel such as Smoo Cave Hotel, 1.2 miles to the east of Diuranais, shows how much sealant a hospitality building has on show, from bathroom joints to the bar.

Questions to ask before you book

  • Do they follow the manufacturer’s priming guidance?
  • Whether their applicators hold CSCS cards
  • Is depth set with backing rod, or bond-breaker tape in shallow joints?
  • Their plan for phasing and protecting the area

Questions to ask before you appoint anyone

When to bring in a specialist

Site maintenance staff can often handle a short internal joint. The usual problems come from preparation: new sealant over old, damp or dusty faces, or the wrong product for the movement.

Putting right a botched joint often costs more than sealing it well at the start, because the whole bead must be removed and the faces cleaned back again. For that reason, many FMs and contractors use a sealant specialist from the outset.

Accreditations

Trusted. Accredited. Insured.