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

Sealant specialists in Keiss

Commercial sealant contractors in Keiss, backed by over 20 years in commercial sealing. Fully insured and CHAS accredited.

  • Leaks that seem to come through a sealant line
  • Movement joints packed with grit and debris
  • Earlier reseals applied straight onto the failed bead
1
Send details
Tell us about the site, with photos if you have them.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Prepared joints, the specified product, a tidy finish.
4
Guaranteed
Signed off, with 12 months’ guarantee.
South East, London & Scotland
CHAS accredited
£5m PL insurance

Commercial sealant contractors near Keiss

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

About our commercial sealant contractors in Keiss

How long a joint lasts is decided before any sealant leaves the gun. Silicone has no grip on cured silicone, so the failed bead is cut out completely and the faces are cleaned until they’re sound and dry, with no dust or grease left. Where the sealant maker specifies a primer for that substrate, it goes on before the new bead and the joint depth is controlled with backing rod. Site teams most often ask us about expansion joints with the sealant torn out and shrunken sealant along kitchen worktops and splashbacks, on window and door perimeters, external facade joints and movement joints in walls and floors. Whoever orders the work in Keiss, the brief is normally the same: a fixed quote, no surprises on site and a 12-month guarantee behind the result.

On a typical commercial building in Keiss, the joints that fail first are the hardest-worked ones: south-facing perimeters, entrance thresholds and busy washrooms.

Around smaller places such as Keiss, the commercial buildings tend to be hospitality, local shops, schools, health centres and converted rural buildings. Their kitchens, washrooms and window perimeters all need joints that keep water out.

Building owners and contractors get the same cover: twelve months on the work we carried out. Faults in the structure, damage and other trades’ work fall outside it, and we say so plainly.

The Mastic Doctor team beside their liveried vans in front of an office building
Where
Keiss (KW1)
Wider area
Highland
Guarantee
12 months on our workmanship
Price
Quoted before any work starts
Telephone
01277 525 020
Updated
3 November 2026

Do you need commercial sealant contractors in Keiss?

Washrooms and kitchens wear sealant out in their own way. Damp, harsh cleaning products and poor ventilation let mould take hold inside the bead, and once established it rarely cleans out. Replacement with a sanitary anti-mould silicone is the lasting answer.

Site and facilities staff are often the first to spot these:

  • Wall and floor joints that have lost their seal
  • Messy, uneven beads from earlier work that let the building down
  • Leaks that seem to come through a sealant line
  • Weathered facade sealant that no longer flexes

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

Questions to ask before you book

  • How long is the guarantee, and what does it include?
  • What site paperwork they can supply
  • Can the work be phased to keep areas open?
  • How the existing material will be dealt with

Choosing a commercial sealant contractor

Commercial clients in Keiss

When you manage a building on behalf of an owner, you need clear quotes and clear reporting. You get a fixed quote, an agreed scope and a walk round at the end.

CHAS accredited and a Constructionline member, we are straightforward to vet for your supplier list. We’re fully insured, and our insurance certificate can go with the quote.

What we can’t put right

Not every problem is a sealant problem, and we are upfront when that’s the case. It won’t fix:

  • Old mastic that tests positive for asbestos
  • Misted, cracked or failed glazing units (a glazier’s job)
  • Water from a services leak rather than a joint

Not sure which it is? You can give us a call on 01277 525 020 or email the details over and we’ll tell you honestly.

Where we work in Keiss

  • Floor and threshold joints
  • Window and door perimeters
  • Movement joints in walls and floors
  • Kitchen worktops and splashbacks
  • External facade joints
  • Washrooms and tea points

Our process

Tell us your site hours and access windows and we will plan around them. On the day, the work area is kept contained and tidy, and we check in with your contact before moving on to each new area. For work around Keiss, we aim for one trip, which is why we ask for photos and a full list first. Outside work also needs a suitable weather window.

  1. We start with the evidence: photographs, drawings or a look on site.
  2. You get a fixed quote covering removal, preparation and the new sealant.
  3. Sequence, access and working times are settled before the first joint is touched.
  4. The failed sealant comes out and the faces are prepared, with primer where required.
  5. Backing goes in, the new sealant is laid and tooled, and the area is left neat.
  6. Completed areas are signed off with you under our 12-month guarantee.

Before we start on site

  • Confirm the product named in the specification
  • Flag any permit to work we’ll need
  • Warn occupants and staff about the work

Ask for a quote

Specifications, drawings and tender packages are welcome with any enquiry, and we’ll price the work to it. For smaller jobs, photographs and a description will do.

Get a price

Read more

Commercial sealant contractors in Keiss: the local picture

Keiss lies within about 1 mile of the sea. Exposed frontages near the sea are hard on sealant, so the product has to suit the weather as well as the look. Where a frontage needs a particular colour, the product still has to suit that exposure. Being in the east of Scotland, Keiss gets less rain than the west coast. Winter frost and damp frames still stop outside sealing on some days. In winter, outside joints are timed for when surfaces are dry and within the product’s range

Where a joint is on show in Keiss, we will check which shades the product offers before work starts.

Keiss is about 15 miles east of Thurso, in Highland. We send applicators to Keiss for sealant joints, handled exactly as we handle every other area. Our Highland coverage takes in 256 places, large and small.

Business premises anywhere in KW1 are within our area. We cover commercial and managed buildings on High Street, South Street and Robertson Crescent and the roads nearby. Just outside Keiss, we also work in Reiss (4 miles south), Ackergillshore (4 miles south), Hastigrow (5 miles west), Staxigoe (6 miles south-east) and Haster (6 miles south). For island and remote sites, travel and materials need planning ahead, so include the location in your enquiry.

What’s near Keiss

Nearby you will also find Caithness Broch Centre (2 miles north-east) and Keiss Castle (0.7 miles north-east). Open spaces near Keiss include Loch of Wester.

Map of Keiss © OpenStreetMap contributors

Looking after the joints

To get the most from the new sealant:

  • Brief cleaning contractors to avoid scourers and blades on sealant
  • On pre-2000 buildings, share the asbestos information before work starts
  • Look at the sealant around anything that has been moved or replaced
  • Keep washroom and kitchen extraction working

Later works are the usual way new joints get damaged. When fittings are moved or cabling added, the sealant nearby is easily disturbed. Where work has disturbed a joint, just ring 01277 525 020 or use the quote form for a quote.

Sealant rarely fails all at once across a building. The first failures are often a warning about the rest. We will tell you which sealant joints need doing first and which can wait.

How the quote is worked out

Quotes vary with the job. It mainly depends on:

  • Distance, for remote addresses
  • Backing rod, priming and other preparation
  • Quantities, in metres or numbers
  • Access and working height

Access can matter as much as the joints themselves: joints within easy reach take less time than ones that need access equipment. Mention the access as part of your enquiry.

Sending details for a quote

A few photographs plus some basic facts will normally do. It helps to include:

  • The type of building and who uses it
  • The postcode of the building
  • Any specification or named product
  • Your programme or deadline

Need a figure for a tender or a budget? Send the scope and any drawings, and we will return a fixed quote that you can work with. If you have questions first, ring 01277 525 020 or email the details over.

FAQs: Keiss

Can the sealant on our Keiss premises match the finishes?

Yes, we can normally get close to most finishes from the product’s colour range. Available colours for the product are confirmed with the quote.

Is a smaller place like Keiss outside your area?

No. Small places get the same service as large ones. Our area covers all of Scotland, cities, towns and islands alike. Send photos and a list of what needs doing, and we will plan the job to need as few trips as possible.

How soon can the area be used again?

The product and site conditions decide that. Some take light use quickly, others need longer to cure, so we will confirm the curing time on the day.

Are your applicators CSCS-carded?

Yes. Our applicators hold CSCS cards.

Are you CHAS accredited and on Constructionline?

Yes. We’re CHAS accredited, we’re a Constructionline member and we use CSCS-carded applicators.

How long does a typical visit take?

It depends on the scope, but the work normally takes as long as the agreed scope needs, from a single visit to a programme spread over several weeks. Larger or phased jobs take longer, and we’ll give you a timescale with the quote.

Do you seal on top of existing sealant?

No. We cut the old material out and clean the joint back before sealing, because fresh silicone will not bond with aged silicone.

Accreditations

Trusted. Accredited. Insured.