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

Sealant specialists in Lonemore

Sealant work for offices, shops, hotels and other commercial buildings in Lonemore and across Highland. CHAS accredited, Constructionline member, with a 12-month guarantee on workmanship.

  • Frame sealant that has cracked, shrunk or pulled away
  • Leaks that seem to come through a sealant line
  • Shrunken sealant along kitchen worktops and splashbacks
1
Send details
Photos, drawings or a schedule, or we visit.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
CSCS-carded applicators, the right product for each joint.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
Constructionline member
£5m public liability

Commercial sealant contractors in Lonemore

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

After the work

Every sealant joint needs some looking after, and how long they last depends on how they’re treated. We suggest:

  • Check sealant as part of routine building inspections
  • Respect the cure time before reopening an area
  • Log reseals in the O&M or maintenance records
  • Look at the sealant around anything that has been moved or replaced

Let your cleaning contractor know what’s new. Scourers, blades and harsh products shorten a bead’s life.

Each spell of wet weather pushes more water through an open joint. Behind a panel or frame, that water can sit unseen for a long time. Catching it at the sealant stage avoids the bigger repair.

Commercial mastic work in Lonemore

Failed sealant isn’t always the whole story. A leak near a frame edge can start in the frame, the cill or the cavity while a movement joint that keeps tearing may simply be too narrow for the job. We look before we quote and tell you plainly if sealant won’t solve it, so budgets go where they’ll do some good. We work on window and door perimeters, floor and threshold joints and washrooms and tea points, and the failures we’re asked to look at most are window and door perimeter joints that have cracked open and layers of sealant, all of them failing. Whether you call it commercial sealant work, mastic application or joint sealing, in Lonemore it comes down to the same thing: failed joints cut out, faces prepared and the right sealant laid to the right depth.

We price commercial jobs in Lonemore from photographs, drawings or a site visit, with the scope listed so everyone knows what’s included.

For work in and around Lonemore, we’d rather do everything on one trip: send photos and a complete list so the right products and colours come on the day. Several jobs nearby can also be put together.

The 12-month guarantee covers our workmanship: preparation, application and finish. Damage, later alterations by others and movement beyond what the joint was designed for sit outside it.

Location
Lonemore (IV21)
Wider area
Highland
Guarantee
12 months on every job
Quotes
Quoted before any work starts
Telephone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team beside their liveried vans in front of an office building

Questions we are asked in Lonemore

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

It can. Coastal exposure works external joints harder than inland weather. That puts more weight on product choice, primers where the manufacturer specifies them, and correct joint sizing.

Will our hotel in Lonemore need to close for the work?

In the majority of cases no closure is needed: we work room by room or floor by floor. Housekeeping and our team agree each day’s rooms.

Is it OK to apply fresh sealant over existing beads?

Removal of the failed sealant is always part of the job. New sealant can’t grip the old bead, so laying over it never lasts.

How do you keep disruption to occupiers down?

That comes down to planning: areas are phased, access windows agreed and enough washrooms or entrances left in use. Let us know what can’t close and we’ll work around it.

How long does a job like this take?

It depends on the scope, though a typical visit usually takes as long as the agreed scope needs, from a single visit to a programme spread over several weeks. For bigger or phased jobs, we’ll set out a timescale with the quote.

Can you supply RAMS and insurance details?

Send your site requirements with the enquiry, and the paperwork is confirmed with the quote. From you, we will need the asbestos information for older buildings and any site rules.

Which sealant will you use?

The specification comes first, if there is one. Without one, the joint decides: how much it moves, what it bonds to and whether it’s wet, trafficked or fire-rated.

What Lonemore’s businesses ask us to seal

Lonemore sits close to the coast, within about 1 mile. For shops, hotels and offices, that means frontage and frame joints that weather faster than they would inland. We choose a product rated for the exposure, then confirm the colours available for it. Lonemore is in the west of Scotland, the wetter side of the country. We plan external joints for dry spells and keep internal work in reserve. Elevations facing the weather typically show failed joints first

Whatever the building in Lonemore, commercial sealant work starts with cutting out the failed bead and cleaning the joint back to sound material.

Lonemore is in Highland. Any commercial site in Lonemore is covered. Across Highland, 256 places are covered, including Lonemore.

Postcode districts covered here: IV21. Close to Lonemore, our area also takes in Gairloch (1 mile east), Badachro (2 miles south), Poolewe (5 miles north-east), Inverasdale (6 miles north) and Àird (9 miles north-east). Island and remote sites need extra planning, with travel, ferry crossings where needed and weather to allow for, so give the site location in your enquiry.

Around Lonemore

We work on buildings around Gairloch School. A little further out are Gairloch Museum (1 mile east). Green spaces nearby include Linne a' Mhuilinn and Cnoc Dubh.

Map of Lonemore © OpenStreetMap contributors

Commercial clients in Lonemore

Main contractors use us as their sealant subcontractor, on new build and refurbishment alike. Programme, specification and site rules come first.

FMs need a contractor who is easy to get on site. Let us know the documents you need (RAMS, insurance certificate, CSCS details) and we will confirm them with the quote.

Common problems we fix in Lonemore

Resealing over the top is a false economy we come across often. New silicone has nothing to key into so it soon peels and traps moisture against the joint. By the time it shows, there can be two or three layers to cut out.

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

  • Untidy joints in a reception, shop floor or lobby
  • Frame mastic that has hardened and come away from the wall
  • Damp patches where an external joint has failed
  • Expansion joints with the sealant torn out

In hotels such as Millcroft Hotel, 0.6 miles east of Lonemore, refurbishments typically mean bathroom, bar and reception joints where a matched sealant colour has to sit with the finishes.

Questions to ask before you book

  • How they’ll work around occupants
  • What site paperwork they can supply
  • Will CSCS-carded applicators be on site?
  • Is the sealant right for the movement and the substrate?

Choosing a commercial sealant contractor

On site: what to expect

At the end of each section, we remove the tape, clean down and inspect every joint with your site contact. If an area should be left alone while the sealant cures, we say how long and put signs out. Where we can, we combine work around Lonemore with other jobs nearby, to make the most of each trip. Let us know if your dates have any give.

  1. We begin with whatever information you have, whether that’s photographs, a drawing or a list of locations, or we arrange a site visit.
  2. Next comes a diagnosis and a fixed quote.
  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. The depth is set, primer is used where the maker calls for it, and the fresh bead is applied and tooled.
  6. Each area is inspected, signed off and backed by our 12-month guarantee.

Before we start on site

  • Send any specification or drawings in advance
  • Tell us what induction or permit system the site runs
  • Agree which areas must stay open

Get a fixed quote

If there’s a specification, drawings or a tender package, send it with your enquiry, and we will price the work to it. For smaller jobs, photographs and a description will do.

Get a quick quote

Related advice

Cost factors for sealant joints

Sealant work doesn’t have a standard rate, because every site is different. What we take into account:

  • How much there is to seal
  • Specialist products, such as fire-rated or hygienic sealants
  • Removal of failed or old sealant
  • Travel to remote or island sites

Larger quantities, tricky access or phasing all shape the price. So do site requirements such as inductions and permits.

Details that help us quote

To price the job accurately, we need a clear picture of the site. Send us:

  • The product your specification calls for
  • The postcode of the building
  • When you need the work done
  • Whether the building will be occupied during the work

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

Surface by surface

Facade and cladding joints

Facade sealant failures can be hard to spot from the ground. Close-up photos or a site visit tell us what’s needed, and we’ll confirm the colours available for the specified product.

Washrooms and toilets

Around WCs, urinals, vanity tops, IPS panels and cubicles, sealant is wet most of the day. Old sealant comes out and a sanitary silicone with anti-mould additives goes in, phasing the rooms so not every toilet is closed at once.

Accreditations

Trusted. Accredited. Insured.