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

Mastic sealant contractors in Strontian

Looking for mastic sealing in Strontian? It’s simple: send details, get a quote, we seal, guaranteed.

  • Failed external movement joints
  • Estate-wide sealant that is simply worn out
  • Damp patches beside frames
1
Send details
Send the specification, photos or a marked-up plan.
2
Get a quote
One fixed quote covering the agreed scope.
3
We seal
Failed joints cut out, faces prepared, new sealant laid.
4
Guaranteed
12-month guarantee on our workmanship.
London, the South East & Scotland
CHAS accredited
£5m public liability

Need mastic sealing in Strontian?

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

Mastic sealing for commercial buildings in Strontian

In buildings from before 2000, some old mastics contain asbestos. We check the asbestos register or survey before any old sealant is cut out, and work stops for testing if there’s any doubt. Removing asbestos-containing material isn’t something we do. Site teams most often ask us about draughts at frames across a block and damaged joints in communal entrances and corridors, on balcony and threshold joints, external wall and movement joints and communal kitchens and washrooms. Looking for mastic applicators who cover Strontian? Mastic Doctor has worked for contractors, FMs and building owners since 2005.

Around Strontian, outside mastic waits for dry weather and the right temperature. We agree a window with some flexibility.

The 12-month guarantee is for workmanship rather than wear and tear. Sealant wears with time, and movement, weather, cleaning and use decide how fast, so we are clear about what is covered before work starts.

Where
Strontian (PH36)
Region
Highland
Guarantee
12 months on our workmanship
Quotes
A fixed quote before we start
Phone
01277 525 020
Last updated
3 November 2026
The Mastic Doctor team standing beside their branded vans outside an office building

Leave it or put it right?

Draughts round window perimeters cost occupiers comfort, and they often blame the windows. Resealing the perimeters is often the simpler fix where the frames themselves are sound. Buildings that aren’t in daily use, such as halls and seasonal premises, may let water in unnoticed, giving water time to get in. Early resealing prevents it.

A quote for mastic joints depends on quantities, condition and access, and any specification that applies. Call for a quote.

What you get with us

  • CSCS-carded applicators
  • Sealing commercial buildings since 2005
  • Old sealant cut out, never sealed over
  • A fixed quote before work starts

Read our cost guide or our accreditations and insurance.

When to bring in a specialist

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.

Some joints are best left to specialists: fire-rated seals that must follow a tested detail, trafficked floor joints and external movement joints among them. A poor seal in places like these tends to cost more to put right later.

Planned mastic for Strontian portfolios

Strontian is within about 1 mile of the coast. Sea-facing elevations take driven rain and salt, and their mastic shows it before the sheltered sides do; plan inspections around that. Strontian is on Scotland’s wetter western side. Frame mastic on weather-facing sides tends to fail first. Programmes allow for wet days.

Owners near Strontian can renew frame and external mastic block by block on one programme.

Strontian (Gaelic: Sron an t-Sithein) is in Highland. Looking for mastic sealing in Strontian? We can help. 256 places across Highland fall within our area, Strontian among them. For work in that direction, see our Glasgow page, about 76 miles away.

We cover the PH36 postcode districts for mastic joints. We cover commercial and managed buildings on Dal nan Each and Dal na Mart and the roads nearby. Just outside Strontian, we also work in Acharacle (9 miles west), Ceann Loch Muideart (9 miles north-west), Port Appin (12 miles south-east), Appin (12 miles south-east) and Balliveolan (12 miles south). Remote and island addresses take more planning, from travel and ferries to the weather, so mention the location when you phone 01277 525 020 or email us.

Around Strontian

Open spaces near Strontian include Loch Doilet.

Map of Strontian © OpenStreetMap contributors

How the job changes by surface

Commercial and mixed-use buildings

Commercial occupiers normally stay open during the work, so we plan around them.

Planned maintenance

Resealing can be scheduled alongside other planned works on a timetable you set.

Do you need mastic sealing in Strontian?

Occasionally the substrate fails, not the sealant for instance where render or brick edges crumble. If the edges are unsound, we say so before quoting the sealing.

Typical triggers for a call:

  • Open joints in brickwork or panels
  • Repeated reactive repairs to the same buildings
  • Water getting in round frames after rain
  • Window mastic that has split and shrunk

Older community buildings, Strontian Church among them, often have frames of mixed ages whose mastic varies.

Questions to ask before you book

  • The named product and why it was chosen
  • The terms of the workmanship guarantee
  • Proof of insurance
  • Do they follow the manufacturer’s priming guidance?

Our contractor checklist

What sets the cost

The price varies from site to site. It mainly depends on:

  • Working within restricted access windows
  • Site requirements such as inductions and permits
  • Specialist products, such as fire-rated or hygienic sealants
  • The size and state of each joint

The price depends on the quantity of joints, how much old material needs removing and how the joints are reached. Call for a quote once you have the details.

Before you send an enquiry

Good information means a firmer quote. When you get in touch, include:

  • The site address and postcode
  • Specification clauses that apply
  • Approximate linear metres or a joint schedule
  • What the building is and how it’s used

Need a figure for a tender or a budget? We’ll quote against your scope and drawings you can plan around. If you have questions first, call the office on 01277 525 020 or email drawings and photos.

Our process

Occupied buildings need a little choreography. We sign and contain the area we are in, keep walkways clear and move on in phases so staff and visitors can carry on around us. Tell us who will meet us and how to get in at your building near Strontian. We will confirm the plan with the fixed quote.

  1. First we look at the mastic on each building and note what needs replacing.
  2. We send a fixed quote that sets out the joints, the products and the programme.
  3. The programme is fixed with you, including dates you can pass on to residents or tenants.
  4. We remove the old mastic completely and clean the joint faces back.
  5. Backing rod and primer go in where the joint and the product need them, then new sealant is applied and tooled.
  6. Finished joints are looked over and the 12-month guarantee confirmed.

What we need from you

  • Arrange parking or a loading space
  • Let building users know which areas are affected
  • Tell us which areas need to stay in use

Request a quote

Let us know the site, the scope and your timescale, and we will put a fixed quote together. To get it moving, phone 01277 525 020 or send photos by email.

Get a quick quote

Advice

FAQs: Strontian

Can you quote for mastic across several buildings in and around Strontian?

Yes. Planned programmes across a building, block or estate are a core part of this service. Send the addresses and photographs and we will give a fixed quote.

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

It can. Driven rain and salt are tougher on outside sealant than sheltered inland conditions. Product choice and preparation matter more, and sea-facing elevations are worth inspecting more often.

Do you work in Strontian?

Yes. We cover Strontian and the rest of Highland, within our coverage of Greater London, South East England and Scotland. To discuss a job, ring 01277 525 020 or send photos by email.

Who decides which product is used?

The specification comes first, if there is one. Without one, the joint decides: its movement, its surfaces and what it has to cope with.

What if the old mastic contains asbestos?

In older buildings, old mastic can contain asbestos. We check the asbestos register or survey before disturbing it and suspect material is tested first.

Does the weather affect the work?

For external joints, yes. Sealant needs a dry joint and a temperature within the product’s range, so frost, rain or cold mornings can delay outside work. Inside work is seldom held up.

Do you work with property factors and landlords?

We do. Managing agents, property factors in Scotland, housing associations and landlords with block or commercial portfolios are our main clients for this work and work can be quoted per building or as a whole.

Accreditations

Trusted. Accredited. Insured.